AERONAUTICAL / AEROSPACE Supervisor: Dr Doug Auld Rm N310, Bldg J11, ph: 9351 2336 ; [email protected].au 1.DSMC computations of gas flow (subsonic flow boundary conditions) 2.M o d e l c o n s t r u c t ion for smoke visualisation tunnel. 3.Experimental or CFD development and design of wind turbines 4.Validation of stalled aerofoil data All areas are wide ranging and hence allow the possibility of several students working in complementary topics in one of these areas.
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Mawson is an all terrain rover that has been in operationover the last two years as part of a space robotics
program. It needs to be overhauled. We are looking for astudent who has an interest in advance computer
hardware and software. The objective of the thesis is togive Mawson a whole new lease on life. The thesis wouldcomprise of:
Selection of new computer hardware
Software to drive motors and read sensors
already on board.
Code for teleoperationYou will work closely with our engineers as part of thedesign and implementation process.
Aero, Aerospace, MX or MXSpace
Continuum now has an arm that will give this rover theability to look closely at objects and generate detailmodels of the object and of the terrain. Code is written inMatlab/Simulink. We are looking for 3 students for thefollowing thesis topics:
1) Use the laser scanner on the arm to build a 3Dmodel of a target rock given multiple viewpoints.Challenges include object segmentation from thelaser data and motion planning for the arm.
2) Use the laser scanner on the arm to create anelevation map of the environment and then use
this map to develop a path planner forContinuum.3) Develop a energy model for the arm. e.g for a
given trajectory calculate the energy used based
on joint torques, etc. As an extension perhaps plan energy-optimal collision free trajectories for
a given initial and final poses.You will work closely with our engineers as part of thedesign and implementation process.
Aero, Aerospace, MX or MXSpace
Mammoth is w wheel-legged robot. Code is written in
Matlab/Simulink. We have a number of thesis topicsincluding:
1) A student looking at how to create a rapid map ofthe Mars Yard using onboard laser sensors andgenerating traversability maps for Mammoth.
2) A student working on novel User Interfaces fortele-operating Mammoth including low-levelcontrol to high-level planning.
3) A student working on the planning problem, in particular to look at clambering gaits.
4) A student to investigate building a more effective
force sensor unit to identify if Mammoth's wheels
are touching the ground reliably.You will work closely with our engineers as part of thedesign and implementation process.
(5) Ability of RANS models to capture vortex bursting
F1 teams are aiming to improve their ability to capture vortex bursting. The location of a
vortex burst, and it’s subsequent behaviour can influence the underbody Cp distributions
and performance of the rear end of the vehicle. This project will employ a simplified
configuration to explore the ability of ANSYS to capture this phenomenon. It is expected that
experimental data of this simplified configuration will be available. The ideal student willhave a background/affinity for CFD and will develop strong analytical skills.
(6) Investigation of Cavity Aeroacoustics
This project has been suggested by collaborators at DSTO who are interested in
understanding the aeroacoustic behaviour of cavities at transonic velocities. Cavity noise has
a major impact in several fields as a prime source of noise in aircraft wheel bays, weapons
bays, gaps between train carriages and open sunroofs/windows on cars. At high speeds the
noise levels are substantial (greater than 150dB) and can be severely damaging. This thesis
will explore the variation of acoustic noise in a generic cavity to give detailed insight into
experiments conducted at DSTO. We will investigate this using our in-house high orderaccurate Computational Fluid Dynamics.
(7) Drag Reduction Techniques for Automotive Bodies
This project will extend a previous thesis projects to investigate the use of smallaerodynamic strips on the rear of a vehicle body to reduce the overall vehicle drag. This has
the potential to reduce drag by several counts, however it’s applicability under practical
situations has yet to be demonstrated. This thesis will explore the physics of the problem
through RANS simulations, and optimise the current design. The ideal student will have a
background/affinity for CFD and will develop strong analytical skills.
The Rectangular-to-Elliptic Shape Transition (REST) intake is a class of intake designed for
scramjet engines. The rectangular capture shape is used for ease of vehicle integrationwhilst the elliptic exit plane allows the use of an elliptic combustor section, which has been
found to be an efficient cross-sectional shape for scramjet combustors. These intakes have
been studied and tested over several years and are now being integrated into some of the
hypersonic vehicles being flight tested as part of the Australian/US collaborative program
HIFiRE. The aim of this project is to use CFD to study the flow physics of a Mach 8 REST
intake and to assess the capability of CFD to accurately predict these flowfields. The ideal
student will have a background/affinity for CFD and will develop strong analytical skills.
1. Topology design optimization of a rib in aircraft wing box
An aircraft wing box typically consists of a number of ribs that are joined together by stringers and spars and
skin panels as shown in the Figure 1-1. While exterior configuration of an aircraft rib could be well determined
by the chosen airfoil, interior material distribution and structural topology could designed in a fashion to
achieve lightweight and performing structure. The thickness of an aircraft rib could be different at different
location and the cut-outs could take different shape. These selections could be determined by using topology
design optimization from initial design via finite element analysis to the final design as depicted in Fig 1-2.
Fig 1-1 Fig 1-2
This project aims to find optimum topological design for an aircraft rib panel that could be subjected to a range
of selected aerodynamic loads. For example, a particular airfoil section e.g. NACA-0012, could be selectedand several typical air dynamic load cases could be considered. The project involves the use of finite element
analysis software, interfacing with Matlab code developed and application to selected cases for topology design
of an aircraft rib structure. A prototype is expected to be manufactured and tested if sufficient progress is made
2. Design and prototyping of pressure-actuated cellular structures for aircraft
morphing
Aircraft design is a multi-disciplinary, complex and challenging engineering task. Its general design cycle can
be broadly broken down into three technical phases, namely, the “Conceptual design”, “Preliminary structuraldesign”, and “Detailed structural design” as shown in Fig 2-1. There are a vast number of design requirements
for each phase.
The function of morphing may appear familiar as we all see the control surfaces on modern jets moves during
take-off, cruise and landing to achieve better flight performance. The challenging question is: Is it possible to
move other airframe components to drastically change aircraft configuration to perform specific requirements
during flight? How to define drastic configuration change, scope and extent? What are the limits? There are
numerous questions to be answered.
Fig 2-1
This project aims to extend the current hydraulic actuation technology to achieve drastic configuration changeand involves the use and design of pressurized cellular structures, which could be formed by an array of regular
hexagonal honeycomb cells or pouches or even skewed or irregular honeycomb cells (an example is shown in
Fig 2-2).
Fig 2-2
The project consists of design of cellular structural component in the form of leading or trailing edge in a
typical aircraft, or selected wing or fuselage sections. Finite element analysis of the designed cellular structure
will be conducted by considering different level of internal pressure applied. The deformation of the designed
structural will be analysed to understand the capability of morphing. A prototype of hardboard model with
pressure applied via balloons is expected to be used to demonstrate the proposed design.
3. Design and development of self-assembling mechanisms
Self-assembly is referred to as the spontaneous and reversible organization of units or
components into ordered structures via some sort of interactions. It can occur at different
length scales from nanometers to centimeters and is everywhere in nature. Some relevantconcepts drawn from natural contexts may have many applications in engineering. For
example, a modern civilian aircraft has movable parts e.g. control surfaces, a UAV may have
foldable wings. An aircraft can morph from one configuration to another via self-assembly.
One basic and useful form of self-assembly involves folding two dimensional materials into
three-dimensional (3D) structures and its reversal unfolding process. As in origami, folding
is capable of complex shapes and can be scaled to different sizes, and it can turn flat or
planar materials into 3D complex mechanisms. The figure below depicts: (a) an example of
compressing a 4 by 4 Miura-origami into a small part; and (b) a recent example of self-
folding a flat sheet of material into a complex 3D structures. Self folding requires
employment of one or more actuation methods to actuate the folding and unfolding processes. It can be applied in remote, autonomous assembly as well as automation of
certain aspects of manufacturing.
This topic aims to explore basic inexpensive self-folding and self-unfolding techniques for
transforming planar material sheets to 3D structural mechanisms or machines. For example,
a self-folding hinge that could be actuated by an external stimulus, such as heat, electricity,
is considered as one of the key element in achieving the target of self-assembling
mechanisms. An ideal self-folding hinge should have the shape-memory characteristics.
4. Design of shape adaptable rotor blade airfoil section using smart material based
actuatorsMorphing of rotor blade airfoil section is about actively changing the airfoil section
shape using compact actuators, such as PZT, SMA based actuators, to achieve active
airflow control for enhanced flight performance. This project aims to look into possiblesolution to design and analysis of shape adaptable NACA-0012 airfoil section with a
rigid spar using smart material based actuators. Finite element based numerical
simulations are to be performed for achieving desired airfoil shapes.
5. Digital image correlation for full field measurement
This project will offer an opportunity for a student who is keen in
developing/implementing and verifying Matlab based software that is capable of
performing digital image correlation between two images to extract relevant structural
movement. It is expected that DIC software will be used to facilitate measurement of
selected adhesive properties in bonded joints.
6. PZT based motion energy harvester
This project aims to review various designs and prototypes of energy harvesters based
on PZT and external motion. Typical design consists of a cantilever beam with a
concentrated mass at the free end and a PZT film attached close to the clamped end.
Motion of the clamped end will generate vibration of the beam, which in turn strains the
PZT material and generate electrical charges that could be collected if an appropriate
This project aims to develop aninitial design and sizing tool forsmall airships to allow theeva lua t ion o f a range o fpropulsion technologies such asfuel cells and hybrid fuel-cellbased solutions
1 Honours thesis
Solar Powered Airship
What is the smallest possibleairship that can be propelled bysolar power? The aim of this workis to explore this question andwork out the main drivers for thesize of such an airship (latitude,longitude and altitude,…) 1
Honours thesis
UNMANNED AIRSHIP DESIGN
Static Performance
Performance data for smallpropellers is virtually non-existentand static thrust and power arehard to predict. This project
involves testing of variouspropellers on a static test rig.Testing with and without bodieswill be performed for a range ofpropellers and computational tools
will be used to analysethei r per formanceprediction capability.
The so-called Coleman engine, asemi-closed recuperated engine,
is considered to be one of themajor alternative cycles for highaltitude long endurance UAVs.This project consists of ananalysis of a range of different gasturbine configurations at altitudewith the aim to quantify the impactof low Reynolds number operationon the different cycles.
1 Honours thesis
Pulsed Turbine Analysis
Replacing the conventionalcombust ion chamber wi th
pressure r ise combust ionsystems like pulse detonationengines can improve thethermal efficiency of the engineprovided that the effect of flowunsteadiness on the turbine issmall. This project will investigatethe impact of flow unsteadinesson the performance of small axialand radial turbines using 1D
approximate methods. If progresspermits unsteady CFD analysiscan be applied too.
1 Honours thesis
MICRO GAS TURBINES
HYPERSONIC AIRCRAFT AND SPACEPLANESGeneral Background
The technical and commercialfeasibility of both hypersonicaircraft and reusable space-planes is studied world-wide. Thehigh temperatures associated withei ther hypersonic flight oratmospheric reentry result insevere thermal stress for theaircraft structure. Innovativestructural designs are thereforerequired.
Specific projects
A multitude of projects areavailable in this domain. Possibleprojects include but are not limitedto:
• impact of low speed handlingqualities on waverider design andoptimisation
• design of a hydrogen fuelledsupersonic transport aircraft
• analysis of pre-cooled and
variable cycle engines across arange of flight conditions
For Internal Use Only – Not for external distribution
Dr KC WongSchool of Aerospace, Mechanical and Mechatronic EngineeringEmail: [email protected]
2015 Honours/MPE Thesis (ver 1.0 – 3 Sep 2014)
Please come and discuss possible topics with me as soon as possible. Subject areas supervisedinclude Unmanned Aerial Vehicles (UAVs), Aircraft Design, Experimental Aerodynamics, Projects toenhance Experiential Learning, and Aeronautical Engineering Education.
A particular focus will be on the development of Extreme UAVs, ie. Flight platforms with particularlyextreme capabilities.
Any topics within the following or related areas can be discussed and potentially agreed to.
Possible Topic Areas include:
(1) Continuing development and testing of a modular Multi-DisciplinaryExperimental UAV Test Aircraft.
(2) Global Collaborative Design Project – Fuel Cell Powered Low- Altitude Long-Endurance UAV – ongoing development of a FlightResearch UAV airframe system jointly being developed with designteams in universities overseas.
(3) (multiple projects possible) mini UAV Airframe Systems:a. VTOL concepts;b. Aerodynamic Modelling, Stability and Control, Design Optimisation, Flight
Simulation and Testing of airframe concepts;c. Development and testing of tube-launched UAV concepts;d. Deployable and morphing structures for airframes;e. Development of UAVs deployed from underwater platforms;f. Development of thrust vectoring for VTOL and gust-tolerant mAV Flight Platforms for
urban operations;g. low Reynolds Number aerodynamics and bio-inspired concepts for indoor/outdoor
operation;h. Flight platform suitable for microgravity research.
(4) Multi-Role Multi-Mode (Aerial-Maritime-Terrestrial) UAV – need to see
me to discuss details..
(5) Tethered Hovering UAV on floating platforms (multiple projects – need to seeme to discuss details).
(6) (Multiple projects possible) High Performance BWB (blended wing body) UAV:a. Investigate the shifting in neutral point due to propwash;b. Investigate the use of Split ailerons on BWB aircraft;c. Composite airframe structural optimisation and Rapid Prototyping;d. Dynamic testing of model in the 7 X 5 wind tunnel
e. Improvement of the instrumentation and flight testingi. Alpha-beta-V sensorii. Control position sensors
iii. Interface with X-Plane Flight Simulationiv. Inertia measurement system
For Internal Use Only – Not for external distribution
f. Graphical AVL/Panair editor with expansion to CATIA (part of a fast preliminary aircraftdesign optimisation tool)
g. Parameter estimation from flight testingi. BWB UAVii. Cessna 182 (can be compared with full scale)iii. Jabiru J-400 (can be compared with full scale)
(7) Micro EDFs (Electric Ducted Fans) – effect of tailpipe design and thrust-vectoring mechanisms.
(8) Exploring Rapid Prototyping for new UAV designs, using 3D printing (additivemanufacturing) and other facilities.
(9) New mounting system for the 4x3 Wind Tunnel.
(10) Launcher for flight testing of small UAVs.
(11) Lighter-than-Air UAV flight systems.
(12) (priority continuing project) The Development of Experiential-Learning Laboratoryfacilities for Thin-wall and Aircraft Structures.
(13) (continuing project) Development and review of integrated Experiential-Learningcurriculum for Aeronautical Engineering education.
(14) Design and development of a low-cost self-launching two-seat sports glider (inpartnership with a gliding club).
(15) Design and development of a self-balancing flying personal transporter.
(16) …???...come and see me to discuss your ideas…
1. QB50 CubeSat Mission (10 or more students required)
From 2013 to 2015, The University of Sydney is participating the international QB50 project,
which will launch 50 2U CubeSats in the middle of 2015. In this project, a group of
Thesis / project students are required to build an engineering model of a nanosatellite, which
includes structure, electrical power system (EPS), telemetry tracking and communication
(TT&C), attitude determination and control system (ADCS), on-board data handling (OBDH),
and thermal. In this thesis, the students will develop a complete satellite. It will go through
some environmental tests, like thermal vacuum, vibration and shock tests.
2. Vision based satellite formation flying control (Honour thesis only)
Spacecraft formation flying is an evolving technology with many possible applications, such
as long base-line interferometry, stereographic imaging, synthetic apertures, anddistinguishing spatial from temporal magnetospheric variations. A significant advantage of
distributed spacecraft platforms over a single multi-functional spacecraft is that single point
failures can be rectified through replacement of cheaper and smaller spacecraft to maintain
mission capability, thus providing a more reliable and robust system. Many missions (in
particular interferometry missions) rely on precise relative position and attitude knowledge in
order to maintain mission requirements.
The objective of this research is to develop a robust and efficient approach for relative
navigation and attitude estimation of spacecraft flying in formation. The approach developed
here uses information from an optical sensor that provides a line of sight vector from themaster spacecraft to the secondary satellite. The overall system provides a novel, reliable, and
autonomous relative navigation and attitude determination system, employing relatively
simple electronic circuits with modest digital signal processing requirements and is fully
independent of any external systems.
3. Development of a Helmholtz cage for magnetic actuated satellite hardware in loop
simulation
The attitude control system is a crucial subsystem for any satellite mission since precise
pointing is often required to meet mission objectives. The accuracy and precision
requirements are even more challenging for small satellites where limited volume, mass, and
power are available for the attitude control system hardware. The magnetic torquer is the
most efficient actuator for small satellite attitude control. Although the control system can be
designed and simulated using software, like Matlab, it is desired that the control system can
be verified in a real scenario. For magnet torquer, it is important to model the Earth magnetic
field in the orbit. In this project, we will build a Helmholtz cage working together with the air
The nanothruster project will investigate a novel charge exchange thruster (CXT) for
nanosatellites. Like most spacecraft propulsion methods, electric propulsion works by
ejecting mass in a specific direction, which imparts an equal and opposite momentum to the
spacecraft, thus providing thrust. The efficiency of spacecraft propulsion is determined by the
change in momentum (impulse) per unit weight of propellant, which is known as the specific
impulse. Greater propulsion efficiency is achieved by increasing the specific impulse.
Electric propulsion methods produce the highest specific impulse, which makes them suitablefor spacecraft propulsion because this enables the reduction of the amount of propellant the
spacecraft must carry.
Ion propulsion systems consist of three parts: gas ionization, ion acceleration and
neutralization. In the latter, electrons are injected into the ion plume so that the charge on the
spacecraft will remain neutral - otherwise there will be a build-up of negative charge on the
spacecraft that will eventually stop the exit of ions. Although there are several hundred
satellites that use ion thrusters, as well as deep space missions such as the DEEP-SPACE 1
mission to Comet Borelly and the SMART 1 mission to the Moon, it remains a challenge to
miniaturize these thrusters to make them applicable to nanosatellites. Limits to the available power in a nanosatellite are in the units of watts, and similarly, the total weight is of the order
of 1kg. The power requirements and weight of ion thrusters currently in use far exceed these
limitations.
5. Implementation of Computation-Intensive Navigation and Control Algorithms for
Small Satellites/UAVs (Honour Thesis only).
Navigation and control algorithms are computation intensive, which normally require a
powerful computer to process. For small satellites or UAVs, however, the on-board resources
are extremely limited in terms of volume, area and power. It becomes even more challenging
when the algorithms are targeting real-time processing, which normally runs at a high
sampling frequency. In this research, we will develop hardware IP cores for the algorithms.
The resulting IP cores will be integrated as a peripheral in a system-on-chip architecture,
which is currently under development at the Space Engineering research group.
6. High Altitude Balloon
The primary goal of the High Altitude Balloon Project is to build, design, test and operate a
satellite on a weather balloon, and be capable of carrying payloads – the student built satelliteand scientific instruments, to an altitude exceeding 20 km and successfully collect the data
from the payloads using real time down linked telemetry or retrieve stored data after flight. A
secondary objective of the High Altitude Balloon project is to operationally test the
University of Sydney's nanosatellites in a near space environment.
7. Satellite attitude control with a flexible structure and the FASTSAT (Honour thesis
only)
The attitude and orbital control system (AOCS) is one of the most essential systems on-boarda spacecraft. This thesis will develop a revolutionary new method of executing attitude
control for small spacecraft. Through the use smart materials such as Shape Memory Alloys
(SMAs) to provide active shape control, it is possible to use a flexible structure to change the
attitude of a small central spacecraft bus.
Together with this thesis, we will develop a concept satellite ‘flexible Australian Smart
Technologies Satellite (FASTSAT)’, which will demonstrate the feasibility of the satellites
based on flexible structures.
8. State Estimation via Parallel Unscented Kalman Filters (Honour thesis only)
Kalman Filters in their various forms have been the standard approach to solving many state
estimation problems. Indeed for non-linear estimation problems and in particular aerospace
The project offered below is suitable for a Biomedical or Mechanical student.
Echocardiographic and fl uid mechanic evaluation of pulmonary arter ial pressure inrowing athletes at rest and dur ing exercise
Introduction: Pulmonary arterial hypertension (PAH) is defined as mean pulmonary arterial
pressure of greater than 25 mmHg measured by a pulmonary arterial catheter at rest. PAH
during exercise is a controversial subject that has not been defined clearly. There are studies
showing that pulmonary arterial pressure does increase during maximum voluntary exercise.
But a succinct cutoff pulmonary pressure for definition of exercise-induced PAH has not
been agreed upon by researchers of the field. However, it appears that exercise-induced PAH
is the cause of a large percentage of patients with unexplained shortness of breath.
Furthermore, it appears that blood flow turbulence increases during exercise as measured by
echocardiography. But correlation of blood turbulence and its relationship to pulmonary
arterial pressure has not been studied in detail, either.Objective: Our aim is to measure and compare the blood flow turbulence and velocity as
measured by echocardiography in rowing athletes at rest and also at peak exercise. We would
further assess and evaluate if right ventricular systolic pressure, which is a surrogate for
pulmonary artery pressure, is elevated at peak exercise and how it is correlated to peak
oxygen consumption and other variables measured during complex cardiopulmonary exercise
testing (CPET).
Methodology: The rowing athletes will undergo a CPET using the bicycle ergometer
protocol. Several physiological parameters such as maximum oxygen consumption (VO2
max) and maximum CO2 production (VCO2 max) will be measured during the test. A
baseline echocardiogram will be done on each athlete at rest before the exercise. Immediately
following cessation of CPET, another echocardiogram will be performed.Echocardiographic Doppler pressure waveforms will be analyzed to estimate pulmonary
arterial pressure. Fluid mechanic properties of blood flow including shear stress and right
ventricular pressure at peak exercise will be further studied and analyzed.
Both the exercise testing and echocardiography will be done at Doctors hospital in Augusta,
Georgia, USA. Exercise data analysis will be done in Augusta and to some extent by the
faculty of the Physiology department at Mayo Clinic in Rochester, Minnesota. The
echocardiography and Doppler data will be sent to Sydney University for further evaluation
of fluid mechanic properties and for statistical analysis.
Conclusion: Exercise-induced PAH, although existent, is not a well-studied or well-defined
clinical entity. Fluid mechanics and physiological properties of this entity need further
investigation. By studying these parameters, exercise-induced pulmonary hypertension, itsdefinition and classification, and possible further therapeutic interventions will be better
The two projects offered below are available for an individual or a group of students. Both
projects are suitable for Biomedical or Mechanical students. Part of the research will be
carried out at the Sydney Skin and Vein Clinic in Bondi Junction. Students are required totravel there and will be provided with office space and a computer at the clinic.
The standard treatment for varicose veins is the injection of the diseased vessel with a
detergent sclerosant, in order to close (sclerose) the vein. Sclerotherapy using modern
sclerosants has been practiced for at least 50 years. Over this time, a number of technical
innovations have been introduced (such as the introduction of sclerosant foam) that have
increased the efficiency of the procedure. There are a number of side effects of the treatment,
such as the passage of foam bubbles into the heart. Very little research has been performed to
understand the fluid mechanics of the injection, foam and blood.
Project 1In order to improve clinical success rates and minimise side effects, a model must be developed tocharacterise the system in terms of clinical variables. This requires both the use of physical andcomputational models to simulate the geometry of the vascular networks, such as the saphenofemoral junction (great saphenous vein and femoral vein). The complexity of such a model necessitatesexperimental investigation into basic physics/chemistry of both liquid and foam properties of
sclerosants. The flow also needs to be modelled using CFD and the experimental results will be usedfor validation of the computational predictions. We have already investigated the effects of foamconstituents such as air ratio, temperature, sclerosant type and concentration on foam spreading, andthis project will be an extension of this work. There is an existing experimental rig in the researchlaboratory of the Sydney Skin and Vein Clinic which will be used for this project. Some preliminaryCFD simulations have been performed and need to be extended.
Project 2The detergent sclerosant used for injection into the veins is usually prepared as foam right before theinjection. The foam preparation is quite cumbersome and there are numerous parameters which affectthe foam consistency and texture leading to a high degree of variability in the success of the treatment process. Therefore, it would be ideal to have a sclerosant foam with an optimum consistency whichcan be readily used for the purpose of injection. One possibility is to develop a canister with pre- packaging the foam in it. The project requires a detailed review of how the existing readily availableconsumer foam canisters (such as a shaving foam can) are designed, manufactured and function. Thedesign of such devices as well as other concepts for producing a ready made foam will be explored.We are currently in the process of developing a canister in order to produce a reproducible sclerosantfoam. A student is required to liaise with the biomedical engineers and assist in the development of a
prototype and in the assessment of the foam consistency. The project will be performed in laboratoryspace at the Sydney Skin and Vein Clinic in Bondi Junction.
5. Valve Biomaterials Optimization (Industry Linked) Supervisors: Dr Philip Boughton, Dr Giang Tran, Prof Andrew Ruys
Bovine pericardium is the outer membrane of the heart that is widely used in bioengineering of variety of cardiovascular applications including
heart valve leaflet, patches for pericardial for cardiovascular reconstructive procedure as well as in general surgery. Calcification of these tissuescan lead to structural dysfunction, tissue degeneration and catastrophic implant failure. The onset of calcification and its effects will be studied by
a range of techniques. Existing and novel methods to prevent calcification will be investigated. Other opportunities to further enhance heart valve
materials and valve configurations are also available.
8. Skin Tissue Engineering (RPA & Industry Linked).
Supervisors: Prof Sue McLennan, A Prof Karen Vickery, Dr Philip Boughton, Prof Andrew Ruys
Diabetes and diabetic ulcers is a growing problem in aging populations and among remote indigenous communities. A novel resorbable scaffold for
treating serious diabetic ulcers is currently being developed. Dermal chronic wounds are typically necrotic, apoxic, compromised by entrenchedinfection, and poor in mechanical integrity. An elastic highly interconnective porous scaffold laden with antibiotics and antibacterial agents is being
developed. This project will focus on further biologic verification testing and design improvement of this scaffold with particular focus on
resorption rate optimization. Exposure to production methods, invitro cell testing, analytical methods, mechanical testing will be provided.
9. Development of an App for Clinical Research, Rehabilitation Engineering, and Bioinformatics (industry linked)
Supervisors: Dr Philip Boughton, Dr Simon Poon, Tamer Sabet, Prof Andrew Ruys
Popular mobile devices contain a variety of sensors and integrated systems that can be applied to rehabilitation engineering, clinical research and
bioinformatics. A thorough review of published and patented methods will be conducted. Broad design opportunities will be mapped out. A new
app for use in conjunction with a treatment for frozen shoulder will be developed for mainstream mobile device platforms. The app will trackpatient joint biomechanics, have capacity to detect treatment abnormalities to allow immediate intervention if necessary, while remotely
transponding data for centralized bioinformatic analysis. The prototype app will be verified and validated to ensure mitigation of risks identified in
a design risk analysis and safety risk matrix. Candidates will need good software and hardware engineering experience.
14. Development of a Neural Engineering Conduit (Cochlear Pty Ltd)
Supervisors: Dr Philip Boughton, Prof Andrew Ruys, Prof Sri Bandyopadhyay, Dr Paul Carter
The development of electrospun nerve conduits for peripheral repair is a relatively new area. Prototype conduit specimens (of a variety of
conductivities) will be fabricated and cell tested. Cell culture will be conducted with and without electrical stimulation. Verification and validation
testing will be undertaken to confirm specification requirements. Medical science background and/or cell culture experience is preferred.
18. Accessible Foot Injury Mitigating Solutions (Project ACESO, Royal Prince Alfred, Medicine)
Supervisors: Prof Stephen Twigg, Prof Sue McLennan, Dr Philip Boughton
Elderly commonly suffer from some peripheral neuropathy and metabolic dysfunction (diabetes). Toe and foot injuries can go unnoticed and lead
to chronic infections that may result in loss of limb and even loss of life. Custom footware is available to mitigate against injuries but they are costlyand inaccessible to most. The project will focus on conception, design iteration and delivery of one or more prototype solutions in consultation
19. Role of YAP/TAZ in stem cell mechanotransduction, differentiation, and migration (Sydney Medical School, Kolling Institute)
Supervisors: Dr Yu Suk Choi, Dr Philip Boughton
The statement ‘biomechanical and biophysical cues regulate cell behavior’ does sound
familiar by now after recent emerging results from cell biology, biophysics, and
mechanobiology fields. Mechanotransduction seems to be the universal terminology
describing biological phenomenon; mechanical cues are transduced to biochemical signal.
Cells have ability to ‘feel’ or ‘sense’ stiffness (rigidity or hardness) of their surroundings
including extracellular matrix (ECM) such as fibronectin and collagen via integrin-mediatedfocal adhesion. Previously, I have shown that stem cells from human liposuction differentiated
into nerve, muscle, and bone-like cells on hydrogels mimicked stiffness of brain, skeletal
muscle, and bone tissue, respectively, by only mechanosensing without any other
biochemical inductions. Among three lineages, adipose-derived stem cells (ASCs) expressed
very high myogenic capacity by fusing into myotubes. There are several pathways and key
signaling molecules suggested in mechanotransduction. Most of suggested pathways involve
focal adhesion with extracellular binding of integrin to ECM protein as a starting point and
intracellular interaction of beta unit of integrin to actin-myosin through focal adhesion kinase
(FAK), talin, and vinculin binding. Intracellular forces generated by different matrix stiffness
will decide localization (cytoplasmic vs. nucleic) of YAP/TAZ (transcriptional coactivator in
Hippo pathway), which will control transcriptional level as a final step. Bone marrow-derived
stem cells exhibited cytoplasmic localization of YAP/TAZ on soft hydrogel (fat-like stiffness)
but YAP/TAZ was localized in nuclei on stiffer hydrogel (bone-like stiffness). Differentiations
into fat and bone lineages were also observed and YAP/TAZ overexpression or knockdowncells altered mechanical induction (no bone differentiation on bone-like stiffness when
YAP/TAZ knock-downed). Some have suggested YAP/TAZ effect on stem cell myogenesis,
however, no conclusion has made yet due to lack of evidence. Moreover, most of studies with
YAP/TAZ assumed it as a downstream of mechanotransduction (feeling itself) but more
recent results (YAP/TAZ changes integrin expression profile in cancer research) suggest that
YAP/TAZ may have feedback effect to ‘feeling’ or YAP/TAZ act as upstream of ‘feeling’ as
well. In this project, I aim to investigate the effect of YAP/TAZ on mechanosensing (once
considered as upstream of YAP/TAZ) in the context of intracellular force generation (direct
response from extracellular stiffness), migration, and myogenic differentiation (where ASCs
showed great potential).
Contact Dr Yu Suk Choi
T +61 2 9926 4907 | F +61 2 9926 5050 | M +61 415 499 330
N-cadherin-mediated cell-cell and integrin-mediated cell-ECM mechanotransduction in heart (Sydney Medical School, Kolling Institute)
Supervisors: Dr Yu Suk Choi & Dr Philip Boughton
The human heart, a mechanically dynamic tissue, pumps out ~5L of blood/ minute. At tissue
level, its mechanical function has been widely studied, but little is known at cellular level how
cardiac muscle cells mechanically coordinate their beating with neighboring cells or how
mechanical extracellular stimuli dictate cardiac muscle cell behavior. There is increasing
emphasis on the role of extracellular matrix (ECM) as a dynamic influence rather than a
simple repository for cells. This new field examines mechanotransduction, which deals with
the cellular mechanisms that transduce extracellular or intercellular mechanical stimuli to
intracellular biochemical signals. One cardiac muscle cell in vivo may make three principal
connections with its surroundings (i) cell-ECM adhesion via integrin-mediated focal adhesion,
(ii) cell-cell adhesion via N-cadherin, and (iii) cell-cell gap junction with ion channels including
the calcium channel. In disease models in particular, not only biochemical signaling changes
but also the mechanical environment alters the cell’s behaviour vi a these 3 main connections.
For example after myocardial infarction (MI), excessive deposition of collagen causes greater
ECM stiffness, which may alter focal adhesion complex / actinin (i.e. the Z-band - an
important structure bearing contractile forces) and disrupt cytoskeletal structure resulting in
loss of contraction and alteration of cell-cell interaction via N-cadherin.
This project aims to address how these 3 main connections (N-cadherin, focal adhesion,
and gap junction) control the cardiomyocyte’s function in development (e.g embryonic chicken
cardiomyocyte) and disease (rat cardiomyocyte following ischemia –reperfusion injury and
rabbit cardiomyocyte from MI). Three specific aims address 1) the effects of ECM stiffness on
cardiomyocyte function; cell-ECM mechanotransduction, 2) mechanosensitivity of
cardiomyocyte via N-cadherin; cell-cell mechanotransduction, and 3) ion handling capacity,
especially calcium which is the main driving force for cardiomyocyte contraction, examining
different cell-cell / cell-ECM situations
Contact Dr Yu Suk Choi | T +61 2 9926 4907 | F +61 2 9926 5050 | M +61 415 499 330 | E [email protected]
Mechanosensing-driven stem cell migration on stiffness gradient hydrogel (Sydney Medical School, Kolling Institute)
Supervisors: Dr Yu Suk Choi & Dr Philip Boughton
Adipose-derived stem cells (ASC) which could be isolated from patient by minimal invasive
procedure, liposuction, has known to be capable of rapid growth (regenerating large volume
of tissue) and skeletal muscle or fat differentiation. Previously, osteogenic (bone) and
adipogenic (fat) differentiation has been heavily relied on biochemical methods, however, theefficiency remains questionable for large volume regeneration. More recently, it has been
shown that surrounding extracellular matrix (ECM) could also influence the fate of stem cells.
Particularly in respect to stiffness (one of the mechanical properties of ECM), my previous
studies showed that ASCs were able to ‘feel’ and/or ‘sense’ how stiff the underneath was
when cultured on hydrogels that mimicked stiffness of bone or adipose tissues without
biochemical induction and be differentiated into bone or fat cells, respectively. Others also
showed that ECM protein composition played significant role in stem cell differentiation as
well as geometry, which will decide cell shape and size. Their combinatorial (biochemical and
biomechanical) induction has yet to be examined. Here, I aim to develop a high-throughput
screening platform to examine the most synergistic combinations of biochemical and
biomechanical induction for bone or fat cell differentiation. For high-throughput screening,
stiffness gradient hydrogel (stiffness ranges from fat-like soft to bone-like hard) was fabricated
using two-layer hydrogel polymerization technique modified from my previous publication.
Micro-contact printing technique will be used to stamp different ECM proteins (e.g. collagen)with different shapes and sizes on the stiffness gradient gel to test best combination of
stiffness, ECM protein composition and shape/size. Fabricated high-throughput hydrogel
will be placed in 6-well plate for cell culture with ~ 1000 patterns for cell adhesion at single-cell
level and biochemical induction can be tested per well in cell culture media.
The best combination will be evaluated in multi-cell condition by fabricating
whole 6-well plate size hydrogel with known stiffness with known ECM protein coating and
known density (shape/size). To summarize, this platform will allow us to test stem cell
differentiation with 6 stiffness, 6 ECM proteins, 6 shape/size, and 6 biochemical induction
media by 6 repeats in one 6-well plate. This high-throughput screening platform will ‘speed up’
tissue engineering approach using stem cells to regenerate bone and fat tissues.
Contact: Dr Yu Suk Choi | T +61 2 9926 4907 | F +61 2 9926 5050 | M +61 415 499 330 | E [email protected]
ROAM Portable Pediatric Oxygen Supply System (Industry Linked)Supervisors: Marco Tallarida & Dr Philip Boughton
The global market for oxygen therapy, estimated at US$1.8b inclusive of oxygenconcentrators and regulators, is experiencing growth largely from the ageing populationand demand for easy to use mobile/home systems. Pediatrics also constitutes animportant sector of the market.
ROAM is a light weight portable ‘humanised’ oxygen cylinder with an intuitive controlinterface designed initially for the paediatric market. Key attributes include (i) extendedoxygen supply time compared to incumbent technology; (ii) 40% lighter than existingmetal tanks; (iii) nasal mask specifically designed for paediatric use; and (iv) a designaesthetic of appeal to young patients. This medical device is being developed in line withISO13485/IEC60601.
Design & development projects on offer include:1. Regulator control and safety systems2. Hardware – software systems integration with smarhphone control3. Chassis and composite storage system verification and validation
Evaluating cell responses to implanted ceramic scaffolds and polymer materials. Ceramicscaffolds of standard or novel materials have been inserted into defects in the bone of rat or
rabbit tibiae. For this project the student will develop techniques to fully evaluate the bone
inductive and conductive tissue responses to these scaffolds using microcomputerisedtomography and plastic embedded and quantitative histologic measurements. Surface treatment
of polymers will also be assessed for their ability to improve biocompatibility and bioactivity.
Outcomes to be assessed will be extent of cell invasion, numbers of osteoblasts and osteoclasts
and measurement of bone formation rates. Assessments will be histological usinghistomorphometry to determine the static and dynamic parameters of bone regeneration. Cell
culture techniques will also be applied to evaluate the way cells interact with the materials in a
defined environment.
Cancer therapies (1-2 possible in this area)Email: [email protected]
Tel: 9351 7127Cancer cells in cell culture or in mice implanted with cancer cells will be treated with novel anti-
cancer agents. Isolated cells from the cultures or tissues of these mice containing breast and
prostate cancer tumours will be assessed by micro-computerized tomography and histological
methods to determine the amount of bone destruction and new bone formation, and the growthrates and invasiveness of the tumours cells. Results will be analysed to determine the possible
benefit of these compounds in reducing cancer metastasis to bone. And on the the incidence and
progression rates of breast and prostate cancers.The student will be trained in some of the following techniques: tissue culture, molecular
biology methods, immunohistochemistry the measurement of bone lesions using microCT, andhistological techniques including hard tissue histology, histomorphometry, immunostaining and
TUNEL staining for assessing cancer cell apoptosis (programmed cell death).
The ratio of patients who request orthodontic therapy to the total population is surprisingly
high. Unofficial data reports that every year 60% of all adolescents in Australia undergo
orthodontic treatment to improve their healthy start to life. Orthodontic tooth movement
(OTM) within the dentoalveolar bone is based on the ability of surrounding bone and
periodontal ligament (PDL) to react to a mechanical stimulus (e.g. stress/damage/strain
energy) with remodelling processes. Orthodontic forces generate a complex set of mechanical
stimuli triggering biological reactions in dentoalveolar and PDL, thereby causing teeth to
move to ideal positions in the jaw. Although it is recognised that the change in biomechanicalenvironment leads to OTM, it is unclear which of the mechanical signals are dominating the
initiation of the bone remodelling and how to quantify a dynamic tooth movement process in
response to the orthodontic force.
This project aims to (1) develop a precise model of the orthodontic treatment based on CT
images (NewTom – Sydney Dental Hospital in USyd Faculty of Dentistry), which may
involve uses of Rhinoceros/ScanFE – Solidworks – Ansys or Strand7); (2) quantify the
biomechanical responses in several different stages of OTM; (3) correlate the mechanical
stimuli to the OTM rate measured in clinic. In this project, the student will use his/her
CAD/FEA skills to an interdisciplinary topic, and he/she is expected to closely work with
USyd dental specialists (Prof Darendeliler) at Department of Orthodontics.
ReferenceField C, Ichim I, Swain MV, Chan E, Darendeliler MA, Li W, Li Q (2009) “Mechanical
Responses to Orthodontic Loading: A Three-Dimensional Finite Element Multi-Tooth
Model”. American Journal of Orthodontics And Dentofacial Orthopedics 135:174-181.
A new jaw motion tracking system has been implemented at JFOP consisting of three digital
cameras, a controller and LED markers attached to the upper and lower jaws to allow the 3D
motion of the mandible to be recorded. Student projects to improve the operation of this
system would involve both software and hardware aspects and require a proficiency in C++.
Jaw tracking system software modification.
Currently, the movements of the LED markers are displayed in real-time during the recording
session, but it is not possible to display in real-time the movement of a user defined point on
the mandible during the recording. Such a user-defined point can be displayed post-recording
using existing custom built programs, but is not included in the system program. The
proposed project would require this function to be added to the C++ source code of the
tracking system.
The project involves quite complex mathematical calculations as well as an ability to
understand the existing C++ source code and how to integrate new code. Other software thatwas used in the creation of the existing source code includes the (free) FLTK (Fast Light Tool
Kit) package.
Synchronization of jaw tracking system with jaw muscle activity data acquisition system.
Running in conjunction with the jaw tracking system is a separate EMG recording system.
Currently, the two recording systems are synchronised by a complicated process that involves
a lash-up of custom-built hardware and extensive post-recording data processing. There is a
need to implement a better method of synchronising the start and finishing of the two
recording systems perhaps by using free software such as Synergy.
The project requires first, the understanding of the operation of both recording systems andsecond, some familiarity with the process of interconnecting two different types of
X-ray computed tomography (CT) is a valuable imaging tool allowing segmentation and
reconstruction of a patient‟s bone structures, providing the essential inputs for modelling a
specific patient‟s kinematics. There is a considerable cost to this process in the form of
radiation exposure, however. By comparison, plain film radiographs are a less costly and
considerably safer option for patients. This project aims to develop a methodology for taking
measurements from 2D radiographs and inferring the 3D coordinate space position of certain
distinct bony landmarks in the pelvis and upper femur of patients.
The student will be provided with coordinate landmarks of key bony landmarks extrapolatedfrom segmented CT scans of patients, in addition to access to the CT scans themselves and
radiographs of the same patients. Particular challenges include constructing a flexible
transformation process for reversing the impact of perspective in the radiograph and
developing an advanced model that can refine its placement of landmarks on the basis of
additional demographic details of patients (which will characterise the shape and structure of
their pelvis.)
Segmented CT scan of pelvis Radiograph w/ angular measurements
Cochlear implants provide the sensation of hearing to moderate to profoundly deaf recipients
with sensorinerual hearing loss. An array of electrodes is inserted into the scala tympani of
the cochlea in order to provide electrical stimulation to auditory neurons. Some arrays are pre-
curved to match the spiral shape of the cochlea, to be closer to the spiral ganglion cells within
the modiolus. The shape and mechanical properties of the array must be carefully selected toaccommodate a range of cochlea sizes. The desire for proximity to the modiolus must be
balanced with the need to limit chronic contact pressures, which may cause damage to cochlea
structures.
Aims
To develop a mechanical finite element model of a pre-curved electrode array within the
cochlea, in order to predict, for a range of cochlea sizes and electrode shapes:
Static equilibrium position of the electrode within the cochlea
Chronic contact pressures on cochlea structures
Develop design guidelines for pre-curved electrodes based on these results
Methods
The project would involve
A review of the literature to establish a picture of existing modelling work on cochlear
implant electrodes.
Development of a detailed 3D CAD model of an electrode array
Use of a commercial FEA software package to develop a model of the electrode using
realistic material properties
Prediction of equilibrium position and contact pressures within a simplified cochlea
Cochlear implants provide the sensation of hearing to moderate to profoundly deaf recipients
with sensorinerual hearing loss. An array of electrodes is inserted into the scala tympani of
the cochlea in order to provide electrical stimulation to auditory neurons. Arrays need to be
flexible to conform to the spiral shape of the cochlea, accommodate a range of individualcochlea sizes, and to minimise contact forces with cochlea structures to prevent damage that
may degrade hearing performance. The fine wires within the array need to accommodate
large deformations during the insertion or removal. The mechanical properties, dimensions
and position of the wires within the silicone carrier are critical to the robustness and flexibility
of the array.
Aims
To develop a mechanical finite element model of an intracochlear electrode array, in order to
predict overall flexibility of the array, as well as the stresses experienced by its components.
This model could be used to investigate the sensitivity of these to various design parameters,
such as wire sizes, mechanical properties, wire placement and silicone grades.
Methods
The project would involve
Development of a detailed 3D CAD model of an electrode array
Use of a commercial FEA software package to develop a model of the electrode using
realistic material properties
Recommendations for design guidelines for electrode flexibility and reliability
Introduction:Dry eye, the most common eye disorder, is frequently accompanied by blepharitis
(eyelid inflammation) which has an overall prevalence of nearly 40%. Patients with dry eye
and blepharitis have their daily activities disrupted and work productivity lowered due to
recurrent blurred vision and ocular discomfort. Moderate dry eye damages the ocular surface
and can lead to blindness following infection. The consequences of these common conditions
occur despite maximal use of lubricating drops and ointments which address only the
symptoms and not the underlying cause. We have developed the first patented statin-basedeye drop that safely and successfully treats the causes and symptoms of dry eye and
blepharitis.
Aims:We aim to develop new intellectual property by developing a novel delivery device that
will combine both statin eye drop and gel or ointment administration to increase patient
convenience of use. Medicine that is problematic to administer leads to poor compliance.
Currently, different forms of ocular medications (i.e. eye drops, gels, ointments) come in
separate delivery devices. Patients typically carry more than one form of medication at a time.
This is because eye drops do not tend to blur the vision and may be preferred if the patient is
reading or driving, whereas gels and ointments last longer, providing greater lubrication, but blur the vision. Current ocular therapeutics in drop/gel/ointment forms are in separate delivery
devices, which is inconvenient. Further, current delivery mechanisms can be difficult to use,
particularly for elderly patients with arthritis. At least 50% of patients have reported difficulty
with self-administration, frequently saying they have trouble squeezing the bottle. The goal of
this work is to manufacture a combination topical Atorvastatin eye drop and gel/ointment
device that allows tailored drop and gel/ointment use according to vision, cosmetic, and
duration of action needs.
Methods:Delivery device prototypes have already been conceptualised and will be designed
according to viscous and surface tension properties of the topical Atorvastatin formulationswhich will determine optimal tip length and opening(s), dose dispensing time, size and weight
to reduce overflow, drainage and incidence of any systemic side effects. Force requirements
will be factored according to known force generating capacities of the 3 most-used handgrips
and applicator plastic rigidity. Computer-simulated models will be run according to the above,
and also account for dispensing angles. 3-D printed prototypes will then be built according to
established protocols.
Expected outcomes:
A more convenient and novel combination topical Atorvastatin delivery system.
Incorporating modern ergonomics, it will be easier to use than existing delivery devices and
with improved aesthetics it will assist with product marketing.
Sydney Orthopaedic Research Institute is a not-for-profit organisation dedicated to the study
and research of orthopaedic disorders, in particular those associated with the knee joint. The
Institute uses high quality research methods to investigate the causes and development of
common knee disorders, as well as treatments and rehabilitative procedures employed for
these disorders. In addition, the Institute also conducts research on arthritis, cartilage pathologies, ligament injuries, knee trauma, and methods for clinical assessment of these
External Supervisor Dr Corey Scholes, Director of Research [email protected]
Background - The relationship between joint disease, joint forces and muscle control is well
illustrated. Importantly, the pattern of loading is known to vary within and betweenindividuals. This is particularly apparent in patients suffering multiple-ligament knee injuries.
However, it remains unclear if reconstruction is able to restore normal loading, with emphasis
on the articular cartilage and menisci. These structures are vulnerable to overload during
locomotion and their dysfunction is thought to initiate joint degeneration leading
osteoarthritis. FEA has provided considerable insight into other clinical problems such as
joint replacement, but also has the potential to determine the efficacy of current surgical
reconstruction techniques in this context.
Goal – This project will use the latest techniques in FEA to analyse articular cartilage and
menisci loading in knee reconstructions to develop a method of identifying individuals at risk
External Supervisor Dr Corey Scholes, Director of Research [email protected]
Background - Menisci are important cartilaginous structures within the knee that absorb
load, guide joint kinematics and stabilise the joint. Due to their function, the menisci are
vulnerable to traumatic tears and degeneration. Innovations in surgical repair have increased
the ability of surgeons to preserve the structure despite considerable damage, which
previously would have required removal to restore overall joint function. However, there is a
lack of objective evidence linking meniscal repair with reduced incidence of osteoarthritis.
Furthermore, there remains a lack of information regarding the ability of repaired menisci to
replicate the function of uninjured structures. This project will use the latest modellingtechniques to compare the loading response of uninjured and surgically repaired menisci.
Goal – This project will utilise Matlab and other image-processing platforms to generate 3-
dimensional surface models of the menisci and track their deformation and translation during
Our lab investigates the mechanisms underlying the invasion of glioblastoma
brain cancer cells. Unfortunately, there are currently no successful treatments
for this cancer and there have been no improvements for patient survival over
the last 20 years. One of the main difficulties in treating brain cancer is the rogue
cancer cells that have already escaped the primary tumour at diagnosis and
cannot be detected by current imaging technologies. These escaped cells
inevitably lead to recurrence of the tumour. Our goal is to understand how the
glioblastoma cells so readily invade the normal brain tissue. In particular we
focus on how the mechanical features of the normal brain tissue contribute to
the invasive journey taken by the brain cancer cells. To investigate thesequestions we use a range of cell biology approaches and cell culture models that
recapitulate the biophysical characteristics and composition of the brain.
Techniques employed include fluorescence microscopy, time-lapse microscopy
and cell tracking and molecular biology and biochemistry.
Further details can be found on the following web site:https://www.youtube.com/watch?v=0NGwxyoEZlI&feature=youtube
Stem Cell Mechanotransduction in Osteochondral Tissue
The causes associated with osteochondral defects vary from natural wearing totrauma related injuries. With ageing, the natural degradation or wearing of the
cartilage often leads to osteoarthritis. Tissue engineering approaches have
Head: Tissue Engineering & Biomaterials Research Unit, School of AMME/Faculty
of Engineering and IT and Bosch Institute.
As imaging databases grow in volume, important applications such as evidence-
based diagnosis, physician education, and biomedical research stand to benefit
from image retrieval. The use of automatically extracted image features as searchcriteria instead of manually assigned text labels enables users to search these
databases without requiring extensive annotations by physicians. One major
challenge, especially for graph-based algorithms, is determining which features
are important for different structures (tumours, organs) within the images.
In this project, students will design a feature selection algorithm for a graph-
based medical image retrieval engine. The major focus of the project will be
researching and designing a methodology for feature selection in two parts:
selecting important substructures with the images and selecting the important
traditional image features (texture, shape, keypoints, etc.) within these
substructures.
Similarity Matching and Indexing for Graph-Based Medical
Image RetrievalExternal Supervisor: Dr. Jinman Kim
Head: Tissue Engineering & Biomaterials Research Unit, School of AMME/Faculty
of Engineering and IT and Bosch Institute.
Biomimetic scaffolds can serve as effective templates for tissue regeneration
whilst providing the necessary structural support. Ideal biomimetic scaffolds are
those that mimic the anatomical features and mechanical properties of the target
tissue to be repaired. For tendon repair applications, the scaffold must be in the
form of hierarchically organised fibre bundles, with each fibre having surfaceproperties and mechanical behaviour that matches the tendons' properties. This
project will develop a conceptually new approach for the synthesis and
formulation of graphene-reinforced biopolymer composites that will be
processable by fibre spinning. This project will specifically use giant sheets of
graphene oxide specifically because of their liquid crystalline behaviour in
solutions, and their outstanding mechanical properties. The novel composite
fibres to be produced is anticipated to demonstrate remarkable improvements in
mechanical properties. This project will attempt to develop a fundamental
understanding of the various material compositions that are critical for
producing the appropriate fibre dimension, morphology, porosity andmechanical properties and for engineering the scaffold for tendon repair. Since
the fibre spinning process is anticipated to be amenable for large scale
production, the project will also investigate tubular architectures that best mimic
the structure of a tendon and evaluate the relevant mechanical and biological
properties. An example of a heirarchical tubular scaffold is one that encases
several bundles of nanofibres with a woven sheath of microfibers.
Head: Tissue Engineering & Biomaterials Research Unit, School of AMME/Faculty
of Engineering and IT and Bosch Institute.
Pancreatic cancer is one of most common cause of cancer related mortality, with
a 5year overall survival rate of only 4%. Advanced pancreatic cancer is strictlycorrelated with vessel leakage and inflammation. Activated protein C (APC) is
natural anticoagulant with strong anti-inflammatory and barrier protective
properties. APC has favourable effects on both the quiescent and angiogenic
endothelial phenotype, leading to the formation of a stable, intact vasculature. In
both quiescent and angiogenic vessels, excess vascular leakage can cause organ
dysfunction and is a common characteristic feature of many diseases, including
cancers. Our proposed research will determine whether the production of APC or
its precursor protein C, its specific receptor endothelial protein C receptor(EPCR) is altered in pancreatic cancer patients and whether and how APC affects
pancreatic cancer cell growth and metastasis in vitro and its mechanisms of
actions. The knowledge gained from this project may expand our understanding
of the mechanisms underlying pancreatic cancer and provide direction for new
strategies to treat this severe disease.
Activated protein C and skin epidermal barrier functionExternal Supervisor: Meilang Xue
patients. The precise etiology of this disease is still unknown. Activated protein C
(APC), an anticoagulant that has been well-documented to possess anti-
inflammatory and endothelial barrier stabilizing properties, is thought to be able
to exert protective effects in RA by suppressing inflammation and preventing
endothelial damage in the patients. This project investigates the cellular
mechanism of APC in RA patients, with the goal to identify the molecular targetsof APC and subsequently find biomarkers that may be used to predict patients’
responsiveness to APC therapy in RA and their disease outcome.
Mechanism by which novel biomaterials induce bone
formationExternal Supervisor: Prof Arthur Conigrave and Professor Rebecca MasonEmail: [email protected] School of Molecular Bioscience
Charles Perkins Centre (D17)
University of Sydney Internal Supervisor: Professor Hala Zreiqat ,
Masud Behnia, Room S426, Building J07, [email protected] 0414-369-518 (all are
available for individual or group of students)
(A) Efficient cooling and thermal management of Data Centres
With the increasing reliance on computers and servers the computer centres where many
massive computers and servers are housed require substantial cooling capacities of the
order of several megawatts. The dense packing of racks and servers does not allow air to
be directed to the electronic components where heat is generated. Therefore, an
understanding of the flow and heat transfer and optimisation of the flow path is critical
for effective cooling. In this research CFD simulations will be undertaken to simulate the
flow and heat transfer. The results will be compared with measurements in a real data
centre. An industrial partner is also involved with this research. The research is divided
into 6 UG projects as follows. Individual students will become part of a research group
currently working on cooling of data centres.1. Thermodynamic modelling of data centre cooling systems:
This project is for developing and presenting physics based models to allow the
prediction of the energy consumption and heat transfer phenomenon in a datacentre.
2. Exergy analysis of data centre airspace:This project focuses on second law investigation of data centre environment. To
better understanding the irreversibilities regarding the mixing of hot air and cold
air in data centre airspace, exergy analysis is conducted. In this regard, thewasted useful work can be estimated, and some relevant performance metrics areintroduced.
3. Thermal management of data centres:In this project, the probable cooling issues in a typical data centre areinvestigated. To rectify the problem, a few practical design solutions to improve
the cooling effectiveness have been proposed and examined to ensure a reducedair-conditioning power requirement. Therefore, a better understanding of thecooling issues and the respective proposed solutions can lead to an improveddesign for future data centres.
4. Optimisation of data centre configuration:Optimisation techniques will be utilised to investigate the effect of data centreconfiguration on data centre cooling efficiency.
5.
Rack level analysis of data centres: This project analyses the thermal performance of a data centre on a rack(cabinets containing IT systems) level, by utilising a number of rack models withvarious server arrangements. Different rack models regarding server
arrangements with void spaces are presented and modelled. The objective is toinvestigate the interaction of the various servers inside a semi-populated rack.
6. Investigation of under-floor blockages on data centre performance:
In this project, the effect of position of the under-floor blockages and percentageopening of perforated tile are studied using computational fluid dynamics (CFD).The results can provide an understanding of the fundamental fluid mechanicalprocesses controlling the airflow distribution through the perforated tiles and helpthe facility designer to rearrange the blockages and improve the thermal
performance without altering the layout or cold air supply.
(B) Numerical analysis of blood flow1. Pulsatile blood flow patterns in anatomically realistic coronary vessels
Hemodynamics factors and biomechanical forces play key roles in plaquedevelopment in blood vessels and their final rupture. Many clinical studies
suggest that local blood flow patterns are involved in the location anddevelopment of atherosclerosis. In coronary diseases, this assumption should becorroborated by quantitative information on local hemodynamic parameters suchas pressure, velocity or wall shear stress. The flow field are very important and
need to be modeled accurately under different conditions. A simulation modelneeds to be developed to incorporate pulsatility and turbulence with realisticboundary conditions. CFD simulations will be carried out using a commercial flowsolver package (ANSYS CFX). A PhD student is working on this project in the
Faculty of Mechanical Engineering and will be assisting this investigation.2. Fluid–structure interaction analysis of patient-specific arteries
Atherosclerotic disease is a major cause of mortality and morbidity in the
developed and developing world, of which one of the outcomes is heart attack.Atherosclerosis shows a focal distribution, suggesting that mechanical factorsrelated to blood flow may contribute to its development. There is considerableevidence implicating mechanical forces resulting from intravascular pressure and
flow (e.g. circumferential tensile stress and wall shear stress (WSS)) in the
regulation of blood vessel structure under physiological or pathologicalcircumstances. Coupled fluid–structure interaction (FSI) analysis of a stenosedartery reconstructed based on multi slice computerized tomography (CT) imagesneeds to be carried out to investigate the effects of wall compliance on blood flowcharacteristics. A commercial flow solver package (ANSYS CFX) will be used forCFD simulations. A PhD student and a medical student are working on this projectin the Faculty of Mechanical Engineering and Medicine and will be assisting thisinvestigation.
3. Mass transport in an anatomically realistic human left coronary artery The coronary arteries are common sites of atherosclerotic plaque formation,
which has been putatively linked to hemodynamic and mass transport patterns.The purpose of this project is to study mass transport patterns in a human left
coronary artery model, focusing on the effects of local geometric features onmass transfer from blood to artery walls. Local variations in mass transferpatterns due to geometric features are significant and much larger in magnitudethan local variations in wall shear stress. In addition, it is well known that thecomplex secondary flows in a realistic arterial model can produce very substantiallocal variations in blood-wall mass transfer rates, and may be important inatherogenesis. Using a commercial flow solver package, mass transfercalculations need to be performed in a rigid, anatomically realistic model of a
human coronary artery. A PhD student is working on this project in the Faculty ofMechanical Engineering and will be assisting this investigation.
(C) Optimum sizing of prime movers in Trigeneration systems
Combined heat and power (CHP) system may be defined as a system whichsimultaneously generates electricity and heat using a single source of fuel. Thesesystems play a significant role in efficient usage of energy in industrial anddomestic applications. They also have less harmful effects on the environment. Aprime mover is the mechanical equipment which converts the energy of fuel to
electricity (e.g. gas turbine, gas engine, diesel engine). Adding an absorptionchiller to a CHP system, allows even more efficient fuel consumption. Thissystem, which generates electricity, cooling, and heating, is called Trigeneration.
Optimum sizing of Trigeneration systems is of great importance to maximize thebenefits of these systems. To select the optimum prime mover, performancecharacteristics of engine as well as economic parameters should be taken intoconsideration. The impact of carbon tax also needs to be considered. A thermo-
economic methodology has been developed for CHP systems, and some changesshould be made to allow its application to Trigeneration systems.
(D) CFD simulation of heat and mass transfer in Heat and MoistureExchangers (HME)During normal breathing the inspired gases get warm and humidified inside upperairways before entering to the trachea and lungs. When the upper airways are
bypassed in mechanically ventilated patients by oral or nasal endotrachealintubation or tracheotomy it is essential to seek an alternative way to heat andhumidify inspiratory gases since mechanical ventilation with dry cold gasesresults in drying of the mucosal membranes and heat loss. Heat and Moisture
Exchangers (HMEs) are widely used as a simple solution to the problem. HME isan artificial nose (passive humidifier) that traps expiratory heat and moisture in aporous medium and returns a portion of it at the next inspiration. It hasconsiderable advantages over traditional humidifier such as ease of use, low
weight and good price. To improve the efficiency and study design optimisation, itis vital to investigate the mechanisms of heat and moisture transfer in the HME. AComputational Fluid Dynamics (CFD) model will be developed to simulate heat
and mass transfer. This is a collaborative project with Saint Vincent Hospital inMelbourne.
(E) Modelling of two-phase flowFlows of gas and liquid are observed in a number of engineering and industrialapplications such as oil pipelines, refrigeration equipment etc. For the calculationof the system parameters such as pressure drop the behaviour of the two phasesmust be known. This is done either through experimental measurements or
modelling which can be very complex. Computer programs have been developedfor this purpose and it is necessary to test them for a range of parameters and tocheck their accuracy.
(F) Simulation of jet impingement heat transfer
A jet impinging on a surface leads to a very high rate of heat transfer. This is oneof the most efficient heating/cooling techniques with numerous industrial andengineering applications. Numerical simulations for a single jet impingingnormally on a flat plate have been carried out successfully. This needs to be
extended to the more realistic cases of an oblique jet and multiple jets. Thesimulation results will be compared with available experimental data.
Honours Thesis A/B or Engineeri ng Project A/B
Supervisors: Associate Professor Mehrdad Behnia ([email protected]) and Professor
oxygen consumption and other variables measured during complex cardiopulmonary exercise
testing (CPET).
Methodology: The rowing athletes will undergo a CPET using the bicycle ergometer
protocol. Several physiological parameters such as maximum oxygen consumption (VO2
max) and maximum CO2 production (VCO2 max) will be measured during the test. A
baseline echocardiogram will be done on each athlete at rest before the exercise. Immediately
following cessation of CPET, another echocardiogram will be performed.
Echocardiographic Doppler pressure waveforms will be analyzed to estimate pulmonary
arterial pressure. Fluid mechanic properties of blood flow including shear stress and right
ventricular pressure at peak exercise will be further studied and analyzed.
Both the exercise testing and echocardiography will be done at Doctors hospital in Augusta,
Georgia, USA. Exercise data analysis will be done in Augusta and to some extent by the
faculty of the Physiology department at Mayo Clinic in Rochester, Minnesota. The
echocardiography and Doppler data will be sent to Sydney University for further evaluation
of fluid mechanic properties and for statistical analysis.
Conclusion: Exercise-induced PAH, although existent, is not a well-studied or well-defined
clinical entity. Fluid mechanics and physiological properties of this entity need further
investigation. By studying these parameters, exercise-induced pulmonary hypertension, itsdefinition and classification, and possible further therapeutic interventions will be better
comprehended and accomplished.
Bibliography
1. Bogren,HG, Klipstein, RH, Mohiaddin, RH, et al. Pulmonary artery distensibility and
blood flow patterns: A magnetic resonance study of normal subjects and of patients with
The two projects offered below are available for an individual or a group of students. Both
projects are suitable for Biomedical or Mechanical students. Part of the research will be
carried out at the Sydney Skin and Vein Clinic in Bondi Junction. Students are required totravel there and will be provided with office space and a computer at the clinic.
The standard treatment for varicose veins is the injection of the diseased vessel with a
detergent sclerosant, in order to close (sclerose) the vein. Sclerotherapy using modern
sclerosants has been practiced for at least 50 years. Over this time, a number of technical
innovations have been introduced (such as the introduction of sclerosant foam) that have
increased the efficiency of the procedure. There are a number of side effects of the treatment,
such as the passage of foam bubbles into the heart. Very little research has been performed to
understand the fluid mechanics of the injection, foam and blood.
Project 1In order to improve clinical success rates and minimise side effects, a model must be developed tocharacterise the system in terms of clinical variables. This requires both the use of physical andcomputational models to simulate the geometry of the vascular networks, such as the saphenofemoral junction (great saphenous vein and femoral vein). The complexity of such a model necessitatesexperimental investigation into basic physics/chemistry of both liquid and foam properties of
sclerosants. The flow also needs to be modelled using CFD and the experimental results will be usedfor validation of the computational predictions. We have already investigated the effects of foamconstituents such as air ratio, temperature, sclerosant type and concentration on foam spreading, andthis project will be an extension of this work. There is an existing experimental rig in the researchlaboratory of the Sydney Skin and Vein Clinic which will be used for this project. Some preliminaryCFD simulations have been performed and need to be extended.
Project 2The detergent sclerosant used for injection into the veins is usually prepared as foam right before theinjection. The foam preparation is quite cumbersome and there are numerous parameters which affectthe foam consistency and texture leading to a high degree of variability in the success of the treatment process. Therefore, it would be ideal to have a sclerosant foam with an optimum consistency whichcan be readily used for the purpose of injection. One possibility is to develop a canister with pre- packaging the foam in it. The project requires a detailed review of how the existing readily availableconsumer foam canisters (such as a shaving foam can) are designed, manufactured and function. Thedesign of such devices as well as other concepts for producing a ready made foam will be explored.We are currently in the process of developing a canister in order to produce a reproducible sclerosantfoam. A student is required to liaise with the biomedical engineers and assist in the development of a
prototype and in the assessment of the foam consistency. The project will be performed in laboratoryspace at the Sydney Skin and Vein Clinic in Bondi Junction.
Recent global events indicate that knowledge gained during the catastrophic failure of an
aircraft can yield valuable data related to the cause of the triggering incident.
The topic’s requirements would be to:
1. Convert an existing NURBS surface model of a Boeing 777 into a FEA model suitable for
analysis.
2. Analyse the interaction of a collision between a Boeing 777 FEA model with the surface ofan ocean using SPH methods. The aim being to generate an identifying a impulse of the
collision.
Alternatively,
3. Analyse the interaction between the skin and fuselage of a Boeing 777 and a destructive
high energy explosive velocity projectile.
The chief requirements of the suitable candidate would be;
1. A strong interest in CAD and FEA.
2. Completed AMME5912 or prepared to undertake the subject in Semester 1 2015.
It is proposed that there will be opportunities for research projects thesis work in
2015 that compliment existing active humanitarian projects and development work in
Africa, India and Latin America. The SkyJuice Foundation and its partners arekeen to support capable undergraduates on a variety of applied projects.
These thesis projects focus on affordable sustainable services such as low cost
potable water, decentralized water/energy hubs, off-grid lighting and power, as well
as low cost heating. Key objectives of the project include, sustainable design
principles and an imperative for maximizing local content and value adding.
These research topics have a high applied content and lend themselves to “market
ready’ deployment within a 12-18 month timeframe. Students should have a strong
desire to utilise sound multi disciplinary design skills and a desire to commit toproject implementation timelines. In most cases students will be offered travel
stipends to facilitate “in country” concept design and value engineering assessments.
The following organisations outlined below will be participating partners (direct and
indirect) in the projects. The thesis student will be the “approved project manger” and
collaborative assistance will be offered during the thesis and assistance with
introductions to target user groups ;
<> SkyJuice Foundation Inc. (SJ)
<> AquaSynergy Solutions Pty. Ltd. (AS)
<> Evoqua Water Technologies Pty Ltd. (EVT)
<> Siemens Foundation (Siemens Stiftung, SF)
<> Barefoot Power (BFP)
<> The National Centre of Excellence in Desalination, Australia (NCEDA)
Students are also encouraged to utilise the additional resources of existing AMME
faculty members and linkages on these thesis projects.
This project will the develop the concept of “low cost” hybrid ultrafiltration (UF) and
nanofiltration (NF) unit (i.e., UF>NF coupled unit) to treat brackish water sources indeveloping countries suitable for potable purposes. It is envisaged that volume
production of the prototype will be say 5000-10,000 litres /day . Agricultural
applications may be feasible but this will depend on the initial design cost/benefit
review.
The objective will be to utilize known and proven gravity fed UF systems and couple
it with NF to achieve affordable potable water outcomes for communities in
developing countries. The design will critically address and target divalent species
present in brackish water sources (not seawater), to remove hardness and
essentially produce low TDS water suitable for drinking (or high value agriculture)
This is new, novel and innovative concept that has very real implications.
Collaboration with the NCEDA will be provided
SUPPORTING ORGANISATIONS : SJ, NCEDA, SF
2) Improved low cost design for gravity fed membrane water filtration systems
Gravity ultrafiltration (UF) designs are now becoming benchmark technology for safe
potable options in developing countries. UF solutions now provide simple and
affordable treatment solutions that are below the “price point” for traditional water
filtration technology options. The project would explore the opportunity to further
drive down cost reductions in unit cost and manufacturing. It is envisaged that a
value-engineering program and prototype development phase will result in a “step
change” design for 50 -150 person village design. Existing 500 -2000-person units
are well established within the NGO sector
Initial work has resulted in a SkyBox design. This can be further enhanced to
investigate best design configurations and resulting performance benefits. It is
expected that the student will undertaking extensive testing and will criticallyexamine market potential of the unit. A requirement will be to prepare a realistic
“social” business plan based on the prototype.
SUPPORTING ORGANISATIONS : SJ, AS, SF
3) Concept deign of a low cost Hybrid Energy Water kiosk
The development of decentralised utility hubs in the developing world is a recent and
growing trend. These hubs (kiosks) are filling a much needed void in the provision of
basic utilities and essential services. Water kiosks and energy charging kiosks,
particularly in Africa, are surging ahead. The project will look at engineering a
combined water/ energy hub (kiosk) as a stand-alone facility. The design will market
focussed and involve real “ design “ hurdles to achieve a cost effective solution that
is replicable throughout the developing world. Capital coat of production, operating
cost of the internal utility functions and local assimilation are key objectives.
Apart from the design component of the project, the student will need to assess
business models that can enable a sustainable business entity. A business plan will
be required that examines social entrepreneurship options
SUPPORTING ORGANISATIONS: SJ, SF, BI
4) Recovery and recycle of used membrane modules for community potable
water devices in developing countries
This project will examine the harvesting of “used” or end of commercial life
ultrafiltration membrane modules. These membranes are currently discarded from
municipal water treatment plants in huge numbers and go into landfill. The objectiveis to “reconfigure” and rework them into usable smaller potable water filter to be
“offered” into developing countries via direct and established NGO partners. The
“reconfigured” mini filters will provide a powerful and effective potable water solution
to the world’s most needy people. There is an immediate market pull for such
devices. NGO Partners are ready field test prototypes. A student with interests in
polymer chemistry, materials science and mechanical design would be preferable.
An important perspective on this work will be elimination of what is currently a waste
disposal issue for the Australian and global water industry. So, in principle, there are
winners all round on this project. The problem is real, the need is tangible.Immediate market opportunities wait for prototype testing.
This project will require a strong skillset and commitment to innovative design
including lab testing /prototyping, as well strategic marketing/ business plan of the
prototype offerings. It is proposed that field-testing will be undertaken in several
countries within 6-12 months
SUPPORTING ORGANISATIONS: SJ, NCEDA, AS, SF
5) Low cost energy harvesting for developing countries
Communities in developing countries spend significant time energy and resources on
basic energy requirements for their daily life. Essentially, energy is used for
rudimentary cooking lighting and heating. Quite often the energy harvesting and
usage (kerosene, charcoal etc.,) is used inefficiently for lighting, heating or sterilising
water. It also has serious ongoing health implications for the users
Recent developments have seen improvements in LED technology and battery
charging technologies. This has resulted in a dramatic growth in off-grid lighting and
The role of impurities on the properties of nanocrystalline metals
This project will involve the development and application of innovative advanced
microscopy methods for the study of the stability of new, nanocrystalline Ni alloys. Grain
size stability is a critical issue for this important new class of engineering alloys, whichhas potential for mass commercialisation in Australia. The aim of this project is to
determine the influence of solutes on grain coarsening behaviour by using advanced
microscopy methods in the Australian Centre for Microscopy and Microanalysis,
providing information that may be used in future alloy design.
This project is suitable for Honours Thesis A/B
Figure: A reconstructed 3D atom map showing a triple point in a nanocrystalline Al alloy
Atom probe is a powerful microscopy technique in which 3D maps are generatedshowing the precise positions of individual atoms within matter. It allows one to relate
the atomic scale structure to the macroscopic properties, helping design new and better
materials.
Calibration of these 3D maps, so that they are fully accurate, remains a challenge.
Significant developments have been made in the reconstruction of crystalline materials,
however calibrating the reconstruction of amorphous materials (non-crystalline materialslike glasses) is an issue that researchers are not able to solve at present. In this project,
you will develop the methods and techniques to analyse the spatial information within
amorphous atom probe datasets, with a view to developing reconstruction calibrationtechniques and potentially develop a new reconstruction algorithm specific to amorphous
materials. This approach will allow the technique of atom probe to be applied to the
design of a whole new class of materials.
The project will be supervised by A/Prof. Julie Cairney and Dr Anna Ceguerra and is
suitable for Honours Thesis A/B
Figure: Atom probe data from crystalline tungsten.
The successful use of scaffolds for biomedical applications depends on how tissue growsinto structures on the macroscopic scale but also at the cell level. The University of
Sydney has recently acquired a state of the art ‘focused ion beam’ microscope that is
capable of generating 3D images of cells on surfaces, along with the ability to analyse thecomposition and anatomic features of the tissue at and below cell level. This project willinvolve the 3D imaging of cells on scaffolds, providing completely new information
about the morphology of the cells, the surface attachment preferences of the cell on
bioactive materials, and possible resulting changes in the anatomy of the cells throughoutattachment and proliferation phases. This will be useful in the design of future bioactive
scaffolds and implant interfaces. The project will be supervised by Julie Cairney and Phil
Boughton.
This project is suitable for Honours Thesis A/B
Figure: A 3D image of a cell (not a model, but a reconstructed microscopy image!) and
an image of an electron microscope similar to the focused ion beam.
High wear alloys for the mining industry (with Weir Minerals)
Weir Minerals are multinational company, with a research lab in Artarmon, who producemetal parts for the minerals processing industry. They have developed a new alloy that
has very high wear resistance and lasts up to three times as long than their previous
product, and can lead to longer-lasting parts. This is critical for the mining sector, asinstrument down time for replacement of parts can cost many millions of dollars per dayin lost production. The aim of this project is to understand how the microstructure of
these new alloys contributes to wear resistance, by using state of the art microscopy and
microanalysis techniques. This information can then be used for further alloyimprovements. The project will be carried out in collaboration with Weir Minerals
This project is suitable for Honours Thesis A/B
Figure: Scanning electron microscope / electron backscatter diffraction images showing
the orientation of grains and carbides in cast iron samples from Weir minerals
Grain boundaries are one of the most important factors that determine the properties ofengineering alloys. This project will provide new information about grain boundaries at
the atomic scale through new methods that allow both grain boundary structure and grain
boundary composition to be compared. This information will be used in the developmentof new advanced Ti-based engineering alloys with exceptional properties and potentialapplications in the aerospace, petrochemical, automotive and nuclear industries. If the
student is interested, there is also scope to participate in the development of the programs
for data analysis (written in MATLAB ®), using graphics processors.
This project is suitable for Honours Thesis A/B
Figure: An atom map of a grain boundary at which atoms segregate and images of theatom probe.
A new tool to map the orientation of grains in nanocrystalline alloys
Understanding how the grains are oriented in materials is often critical for the materialsdesign process. At the University of Sydney, we have been instrumental in the
development of a new microscopy technique, called ‘Transmission Kikuchi Diffraction
(TKD)’. This method can be used to map the orientation of grains with a very highresolution, and is now being used to better understand fine-grained materials, such asnanocrystalline alloys. Although we can use the technique, we still don’t fully understand
how it works. This project will involve the comparison of data from conventional
transmission electron microscopy techniques with images obtained through TKD, to better understand the contrast mechanisms and the potential future applications.
This project is suitable for Honours Thesis A/B
Figure: A nanocrystalline metal film imaged under different conditions using TKD
Assessment of new Nickel-based alloys as structural materials for future nuclear
reactors.
Nickel-based alloys are being studied to assess their suitability as structural materials for
future Generation IV thorium molten salt reactor systems operating at much higher
temperatures, corrosion environments and neutron radiation fluxes than currently usedfission reactor technologies. At present, researchers at the Australian Nuclear Scienceand Technology Organisation (ANTSO) at Lucas Heights, in collaboration with the
Shanghai Institute of Applied Physics (SINAP) in China, are working on specific nickel-
based alloys identified for their potential to withstand the extreme environments in suchsystems. The project will explore the alloys’ microstructure and mechanical properties in
simulated molten salt reactor conditions, using microanalysis techniques and mechanical
testing. Information from this research can then be used to better understand themicrostructure-property issues that may lead to possible service failure of the Ni-based
alloys and to provide information about alloy in regards to safety and applicability.
This project is suitable for Honours Thesis A/B
Figures: Molten salt reactor schematic and an image of the microstructure of an Ni-based
alloy produced by Electron Backscatter Diffraction (EBSD)
Ex-situ EBSD observation of martensitic transformation in an intergranular
corrosion area of austenitic stainless steel during thermal cycling
For high temperature applications, such as in new-generation energy technologies,
austenitic stainless steels offer an attractive combination of economy and mechanical /
corrosion properties. For example, concentrated solar power (CSP) is a growingrenewable energy technology, but its effective use requires cost-effective and corrosionresistant materials for tubing and piping that can operate for extended periods at high
temperatures and withstand thermal cycling between around 900oC in the day and room
temperature at night. Like many energy technologies, this application demands affordablealloys characterized by high strength and superior high temperature corrosion resistance.
Due to the high cost of Ni-based alloys, austenitic stainless steels (ASSs) are presently
the most suitable materials. However, an oxidation-assisted martensitic phasetransformation was observed in an austenitic stainless steel after thermal cycling up to
970 °C in air in a solar thermal steam reformer. The intergranular corrosion (IGC) areas
were investigated by electron backscatter diffraction (EBSD), transmission Kikuchi
diffraction (TKD) and transmission electron microscopy (TEM). The structural-and-chemical maps revealed that within IGC areas this martensitic transformation primarily
occurs in oxidation-induced chromium-depleted zones, rather than due to only
sensitization. This displacive transformation may also play a significant role in the rate at
which intergranular corrosion takes place. The project will explore the mechanism behindthis phase transformation within IGC areas in the ASS during thermal cycling. More
specifically, ex-situ EBSD observation will be performed to understand this new failure
mechanism. Samples from a commercial ASS (Sandvik 253MA) will be heat treated in a
tube furnace in air at several selected temperatures (from 200°C up to 970°C, then down
to 200°C). Information from this research can then be used to design new ASSs.
This project is suitable for Honours Thesis A/B
Figures: Concentrated Solar Tower, CSIRO Newcastle and an intergranular corrosion
crack with martensitic phase transformation highlighted in red
Title: Determination of fracture behaviour of soft materials (1-2 students)
(Honours thesis)
In modern materials science, how to accurately characterize the fracture behaviour of soft materials has been
a longstanding problem. The highly extensible behaviour of soft materials leads to both crack growth and
crack blunting which are difficult to separate. Consequently, the existing standard fracture tests may not
draw a clear distinction between fracture toughness (contributing to crack propagation) and strength
(contributing to crack blunting) of soft specimens. Owing to the lack of the reliable data of fracture
toughness, the design and use of soft matter in engineering applications are often limited.
Recently, the cutting methods (such as blade cutting, orthogonal cutting and wire cutting) have attracted
significant research interest, in which materials are removed and the separation work, i.e., the fracture
energy (GC ) can be determined. The methods seem elegantly simple and promising. However, there are
several issues still outstanding concerning the validity of the fracture analysis in cutting process. For
instance, it remains unclear how the sharpness of the cutting tools effects on the fracture measurement. This project aims to understand the role of fracture in material removal in cutting process. It will deliver the
necessary experimental data and the basic science in developing new standard methods for determining the
fracture toughness throughout material removal i.e., the cutting tests. The new methods will provide new
capabilities to characterise tough polymers, thin films, some biomaterials and more.
(a) (b) (c)
Figure 1 Schematic representation of fracture tests by using the cutting methods a) blade cutting [1], b)orthogonal cutting [2] and c) wire cutting [3]
Title: Shear-thickening and structure formation in suspensions (1-2 students)
(Honours Thesis)
Shear thickening fluids (STFs) are unique materials, displaying recoverable phase transitions between liquid
and "solid" phases due to significant changes in viscosity at a critical rate of shear. Normally, shear-
thickening is observed in highly concentrated dispersion systems. Such highly nonlinear behaviour is of
great practical and fundamental importance. One promising application of STFs is to develop adaptive,
energy-dissipation systems, in which STFs can divert or dissipate the energy via viscosity, friction,
"plasticity" or "fracture", depending on loading conditions. In fact, the use of STFs as adaptive energy-
dissipation materials has created significant industrial and commercial innovations, e.g. new polishingtechniques, smart damping and brake devices and "liquid armour".
However, fundamental knowledge of STFs at near to and after the shear thickening transition is lacking.
There is still no a satisfying mathematical treatment of the mechanics of shear-thickening in the literature.
This project aims to establish fundamental knowledge in developing STFs as adaptive energy dissipation
materials for practical applications, which will be achieved by a thorough study on both rheological and
"solid-like" behaviours of STFs before and after the shear thickening transition. The outcomes of the work
will not only advance the basic knowledge of STFs for the research community, but also bring significant
economic opportunities for the industries to develop new STFs-based energy-absorbing systems.
Fig. 2.2 Figure 2: SEM image of particles dispersed in the suspension shown in Figure 2.1
Figure 2.1: Photos of the experiment of removing a stick out of the STF at (a) low and (b) high speed.
3) Development of high performance wear-resistant polymeric nanocomposites (1-2 students)
(Honours Thesis)
Over the past decades, polymer composites have been increasingly applied as structural materials in the
aerospace, automotive, and chemical industries, providing lower weight alternatives to metallic materials. A
number of these applications are concentrated on tribological components, such as gears, cams, bearings and
seals, where the self-lubrication of polymers is of special advantage. It is a current trend in the development
of polymers to seek materials retaining reliable properties at high temperatures. One example for suchrequirement is the new generation of the bushings which is supposed to be used as camshaft bearings in high
pressure, diesel fuel injection pumps (Figure 3), or even in the engine of the cars. In this case, polymer
composites have to operate as tribo-elements at relatively high environmental temperature, e.g. 120 o C, and
the demand for high wear resistance becomes increasingly important. High temperature polymers such as
polyetheretherketone (PEEK) or polyetherimide (PEI) are particularly interesting candidates for these
tribological applications.
To meet the increasing industrial demands, various fillers were used to overcome the inhibited weakness of
polymers to achieve high wear resistance under extreme sliding conditions. In particular, with the booming
of nano-phased materials, nano-sized fillers such as nanoparticles and carbon nanotubes have also come
under consideration, and results have shown that such fillers are promising for improving the wear-
resistance of polymers even at very low filler content (about 1 ~ 4 vol.-%). However, the role of nano-sized
fillers in determining the hybrid polymeric composites is still unclear. This project aims to provide reliable
material data for characterise the wear properties of polymer composites filled with and without
nanoparticles. Further, the formation of transfer films with and without nanofillers will be particularly
investigated. It can be considered as a first step towards a new generation high performance wear resistance
polymeric nanocomposites.
Figure 3. Camshaft journal bearings in a diesel fuel injection pump (upper left: view into a real pump; upper
right schematic, three dimensional drawing of the bearings’ position); Courtesy of Robert Bosch GmbH,Stuttgart, Germany (modified)
Title: Modelling of NOx emissions from the burning of coal and biomass
The cofiring of coal and biomass can reduce CO2 emissions from electricity generationand also our reliance on fossil fuels. However, due to composition differences between
coal and biomass, technical problems such variations in toxic gas emissions can arise
when the biomass fraction rises above just a few percent. But with careful analysis and
plant design, the addition of biomass can lead simultaneous reductions of global and
local pollutants. We will develop quality computational combustion models to address
this issue. The models will be accurate and affordable so as to provide valuable
fundamental tools to assist both engineering designers and operators of electricity
generating plant.
This project will focus on prediction of NOx from a single coal and/or biomass particle
undergoing combinations of evaporation, pyrolysis and char reactions. It will involve
implementation of the models into a numerical solver such as Matlab and validation of
the predictions against available experimental data.
Suitable for Honours Thesis or Engineering Project students.
Title: Computational fluid dynamics of swirl stabilised flames
Due to high mass throughput rates, modern gas turbine combustors operate very closeto the point of flame blowoff. Avoidance of blowoff is the critical concern in combustor
design as it can lead to complete loss of power. Swirl stabilisers are commonly used to
hold the flame in place and minimise flame length. Due to environmental concerns and
finite oil supplies, there is increasing use of exotic fuels with vastly different
combustion properties. Fuel flexible gas turbines are in demand but the stabilisation
mechanisms designed for conventional fuels are not always suitable and simple fuel
substitution can lead to catastrophic failure. Gas turbine designers such as General
Electric and Rolls Royce are increasingly using computational fluid dynamics (CFD) to
improve their designs.
The aim of this thesis is to perform a CFD model of a swirl stabilised flame, make
comparison to experimental data and explore the sensitivity to changes in the fuel.
Title: Dispersion of pulmonary drugs in inhaler devices and the respiratory tract
Pulmonary drug delivery via inhaled powders is an efficient form of therapy for a rangeof diseases. Although inhalers are part of a multi-billion dollar industry, currently
available dry powder inhalers are unable to ensure consistent dose delivery to the lungs.
Improvements will rely on improved computational fluid dynamics (CFD) modelling to
gain a better understanding of the powder dispersion and de-agglomeration.
The project will involve the development of models for particle de-agglomeration via a
statistical population balance equation approach and comparison against idealised
laboratory data. Two projects are available: one will concentrate on turbulent dispersion
and deagglomeration and the other on deagglomeration by mechanical impaction.
Suitable for Honours Thesis students only.
Title: WhaleCam 1 – development of real-time infrared image processing tools
This final year research project is associated with ongoing research surrounding
minimisation of ship-strike during the annual migration of whales up the Sydney coast
by means of infrared detection and whale track predictions.
The aim of this particular project is to develop real-time software to recognise whale
spouts and breaches on infrared images and to distinguish whales from other objects
such as ships and lesser craft.
Suitable for Honours Thesis or Engineering Project students.
I am offering a number of topics in energy related areas including, but not limited
to: combustion, fluid mechanics and heat transfer, solar reactors, heating ventilation
and air conditioning (HVAC) and refrigeration. Some samples of the topics I am
offering are detailed below. Please book an appointment with me to discuss furtherand to find out about additional topics not outlined below. Most projects can be
tailored to take advantage of particular skills and interests in areas such as
Utilising high speed CMOS cameras for measurements in combustion
The use of high speed cameras in many popular
TV shows (MythBusters) and YouTube channels
(The Slow Mo Guys) is testament to insights
that can be obtained from viewing events at highspeed. Recent applications of high speed CMOS
cameras to combustion applications have
revealed many new insights into transient
combustion phenomena. This project will focus
on the application of high speed CMOS cameras
to combustion applications where quantitative
measurements are desired. A particular emphasis
of this project will be to extend the use of high
speed imaging to go beyond feature tracking to
the analysis of temporally varying quantities
such as temperature and fuel concentration.
Flame thermometry using SiC wires and ceramic phosphors
The measurement of flame temperature in high
pressure and high temperature environments is a
challenging task. Any viable measurement
technique needs to be able to measure the flame
temperature with both high spatial and temporal
accuracy and precision. This project will explorethe use of silicon carbide wire to measure gas
phase temperature and laser induced
phosphorescence from rare earth doped ceramics
to measurement the wall temperature in optically
harsh environments.
High voltage assisted lean premixed combustion
Lean premixed combustion has been shown to be a promising method to obtain low pollutant levels andincreased fuel efficiency in many combustion applications such as gas turbines and internal combustion
engines. However obtaining a stable and reliable lean premixed flame is challenging and such flames are
often subject to undesirable oscillations that can prove to be catastrophic for the combustion device. This
project aims to experimentally explore and understand the effects of applying high voltages to extend the
stability limits and dampen the flame transfer function in both laminar and turbulent lean premixed
flames. Laser diagnostic imaging of selected species will also be applied to understand the changes in the
applications. By utilizing active heat transfertechnology whereby the heat transfer component
is a non-stationary rotating component, the need
for an external fan is eliminated and
significantly increased heat transfer rates can be
achieved compared to standard fan and passive
heat sink methods. The aim of this project is to
develop a detailed description of active heat
transfer technology realised through the
combination of heat pipe technology and a
multiple disk Tesla type pump. The success of
and optimisation of such a device relies on
developing an adequate understanding of the
heat transfer and fluid mechanics between
narrowly spaced rotating disks.
Solar fuels and solar reactors
Solar energy is an abundant energy source that is being investigated as a source to drive industrial energy
intensive processes such as the formation of hydrocarbon fuels (such as Diesel and jet A fuel) from water,
CO2 and air. Whilst this may initially seem ridiculous from a thermodynamic perspective, in that the
formation of fuel from combustion products is highly endothermic process, they key point to understand
here is that all of the energy to drive the reaction is delivered from the sun and is essentially free. This
project will leverage high powered lasers to allow the simulation of very high irradiances similar to thosefound in large solar heliostats (10 000 suns) in the laboratory. The influence of irradiance levels relevant
to solar reactors will be examined using laser diagnostics with a particular emphasis on soot, particle,
aerosol and droplet behaviour under these very high irradiance levels.
The role of LED’s in fluid mechanics and combustion diagnostics
In the past 40 years lasers have made an enormous impact in advancing the experimental fields of fluid
mechanics and combustion. Given the recent rapid developments in high power light emitting diode
(LEDs) technology, LEDs are poised to deliver a new wave of advances in experimental fluid mechanicsand combustion. Whilst LEDs will never replace lasers in many experiments, there are many new
applications that can capitalise on the desirable properties of LEDs such as their wide ranges of spectral
bandwidths, variable temporal pulse width, high repetition rates and their ability to be employed in a
clusters due to their cost being potentially 4-5 orders of magnitude cheaper than an equivalent laser. This
project will employ and evaluate experimental techniques based on LEDs to explore and understand fluid
mechanic and combustion related phenomena. This topic is best suited to a student with a keen interest
[email protected] These following research projects are available for Thesis A/B (AMME 4111/4112)
1- Tribology (experiments)(3 student)Tribology is the science that deals with friction, lubrication and wear. The objective of
this project is to measure the tribological properties of soft materials used in biomedical
applications. You will use tribometers and rheometers to characterize the materials andfind the relationship between the frictional/mechanical properties of the material and its
Understanding polymer crystallization is essential for polymer processing industry. Due
to complex nature of polymers their mechanical properties are dependant on theirmorphology and degree of crystallinity. In semi-crystalline polymer materials, crystalline
patches of molecules are imbedded within amorphous (non-crystalline) matrix.
Understanding the degree of crystallinity of the end product and its dependence on
cooling rate, additives, flow conditions and molecular structure is very important todesign efficient processing techniques. You will use rheometers and microscopy to
investigate some of these interesting problems.
3 Effect of nucleating agents in crystallization kinetics-Simulations(1 student) The microstructure of crystallized polymers can be significantly affected by presence of
additives of various shape and size used for various purposes. In this project simulationsof low molecular weight hydrocarbons will be conducted to study the effect of shape and
size of particles in nucleation process during crystallization. The microstructure
(morphology) of such systems and the rate of crystallization are believed to be affected by characteristic of the solid particles in the polymer melt. Polymer processing and nano-
composites are areas that would benefit from the results of this project. Two research
projects are available in this area to use molecular dynamics simulations to study thesechallenging problems. Programming is not required; you will use an existing computer
program to run the simulations.
4 Flow Induced Crystallization of nano-particles (1 student)
Simulations will be conducted to understand the crystallization of polymeric nano-
particle subjected to flow. The aim is to understand the effect of nano-particle size, flowconditions and cooling rate on the crystallization kinetics and morphology of the
polymers and comparison with the bulk crystallization. We will also explore the
possibility to study this phenomenon using experimental means.
Nano-fluidics is the science of flow at the nano-scale. There is considerable interest inthis area due to advances made in nano science and engineering. The behaviour of flow at
nano-scale where the size of pores and channels are comparable to the size of molecules
could be very different from that of macroscopic flows. For example carbon nanotubescan be manufactured with sizes ranging from a fraction of nanometer to a few hundrednanometers. They can be used for transportation of particles and liquids in nano-scale
applications. Experimental measurements and understanding the flow behaviour at such
small scales is a daunting task.
In computational nano-fluidics molecular dynamics simulations are used as one of the
tools for analysing the nanoscopic local properties and flow conditions in such situations.There are two projects available in this area for two interested students. Students working
on these projects will need to use an existing computer program to simulate the flow in
nano-channels and nano-pores. They should have a basic understanding of fundamental
physics, fluid mechanics and Newtonian dynamics. Some basic understandings arerequired about molecular structures such as atomic lattice structure and inter-atomic force
potentials such as van der Waals forces. The research projects are computational so
interest in working with computers is essential. You will be using existing software and
computer programming will not be necessarily required.
5) Molecular dynamics simulation of flow over cylindrical and spherical particles in
nano-scale. In this project the student will simulate the flow of a Newtonian fluid in a rectangular
nano-channel over a cylindrical obstacle. The boundary conditions, pressure, stresses and
velocity field will be calculated using molecular dynamics simulations. A few scenarios
will be investigated and effect of molecular size and ratio of particle to channel size onthe flow conditions will be analyzed.
5B) Simulation of flow through carbon nano-tubesThis project requires some algorithmic development for molecular dynamics simulation
of flow through carbon nano-tubes. Only flow simulations of simple fluids made of soft
Lennard-Jones spheres will be conducted to demonstrate the effectiveness of thealgorithm. You should have knowledge and passion in computer programming in
FORTRAN or C languages and working with computers.
6- Effect of surface topology on diffusion and spreading of liquids
(1 student)
Physical properties of surfaces including their topology play an important role in
spreading and diffusion of liquids that come into contact with them. Spreading of a liquid
drop and its diffusion on the surface are of significant importance in many processes suchas lubrication, surface induced diffusion, cell growth, and micro/nano fluidics. The
project will use simulations at the molecular level to investigate such a process. The
research projects are computational so interest in working with computers is essential.
Application process I have a limited number of places for students and accept applications on a first come first
served basis. If you are interested in a project, drop by and have a chat. Once you are sureyou wish to apply, send me an email stating the project you are interested in. Do not send
me this email until you are sure you want to do the project .
Topics
Environmental Fluid Mechanics Laboratory Experiments (max 3 projects)(You will gain skills in: Fluid Mechanics / Environmental Engineering / Experimental Methods / Data Analysis and Processing)
I have three topics this year involving fluid mechanics based laboratory experiments.
1) An investigation of the destabilizing effects of river bends on density stratifiedriverine flow. This is part of an ongoing research project that aims to develop a better
scientific understanding of stratified river flows.2) An investigation of mixing and freshing in a strongly saline estuary due to inflow from
an upstream freshwater weir pond – this relates to a real situation in the Newcastle
area.
3) Development of a non-laser based particle image velocimetry flow visualization rig tobe used as an undergraduate laboratory experiment.
Topics 1) and 2) relate to my own primary research focus at the moment, namely turbulentmixing processes in rivers and estuaries with saline and/or thermal stratification. Stable
stratification inhibits vertical transport of oxygen and other compounds through the water
column in rivers, estuaries and other water bodies such as lakes and reservoirs. As a result,persistent stratification leads to poor water quality, resulting in fish-kills, disruption ofaquatic ecosystems, and eruptions of toxic cyanobacterial algal blooms. Water management
authorities are keen for more research to be done on the processes that lead to the
generation and breakdown of stable stratification in rivers. This will allow them to developriver management practices to ensure that the health of Australia’s rivers and their
associated ecosystems are sustained into the future.
Requirements: These projects involve using existing experimental rigs, however almost allprojects will require that you extend or modify the rigs. You will be expected to design and
build most of the modifications yourself, as well as designing and undertaking the
experiments yourself. There will also be some Matlab programming and image processingrequired.
Renewable Energy Projects(You will gain skills in: Renewable Energy / Mechanical Engineering / Design / Modelling / Construction / Experimental Methods / Data Analysis and Processing)
If you have a renewable energy related project in mind, come and see me and we candiscuss whether or not it will be feasible. These projects typically involve designing, buildingand testing a renewable energy device. For this type of project, it is important that you have
the skills and facilities to build the device yourself (eg your backyard shed, lounge room or
the student workshop). The design process will usually involve some modelling of the device.You will then compare the model predictions with the actual performance of the device.
Computational Fluid Dynamics Projects(You will gain skills in: Computational Fluid Dynamics / Fluid Mechanics / Numerical Methods / Data Analysis and Processing)
If you have a project in mind that primarily involves modelling of an interesting fluid flow,
come and see me and we can discuss whether or not it will be feasible. My expertise lies
mainly in incompressible engineering flows including flow over vehicles and wings, air-conditioning simulations and environmental flows.
Engineers Without Borders Projects(You will gain skills in: Development Engineering / Design / Modelling / Energy / Water)
The University of Sydney is an official partner of Engineers Without Borders (EWB) Australia.As part of this partnership, EWB will offer at least two thesis projects for University ofSydney engineering students across all engineering disciplines. EWB projects typically
involve working to find solutions to real problems facing people living in remote or poorcommunities either in Australia or overseas. There is an emphasis on the use of appropriate
technology and sustainable development. Current EWB project topics are listed at
Experimental and Numerical Studies on Mechanical Properties of Nanofiller
Modified Polymers and Polymer Matrix Fibre Composites
Polymer and polymer composites have been widely used in many engineeringapplications, such as aircraft. However, some undesirable properties in these materials
and their composites have limited their more extensive applications. The proposed
research aims to experimentally and numerically study the mechanical behavious of
Nanofiller Modified Polymers and Polymer Matrix Fibre Composites.
The project can accommodate 3-4 students working as a group or individually on
different types of fillers. This research project is suitable for Honours Thesis only. Basic
knowledge of solid mechanics and Finite Element Analysis (ABAQUS or ANSYS orother FEA software) are preferred.
Additional requirement: The students, who are interested in this topic, should be able tostart the research before March 2015.
At the annual FSAE competition, unlike what one encounters in the industrial world, competitors are
happy to discuss their designs and results. We can learn a huge amount by examining otherstudent’s concepts and executions. We take the view that what others do are experiments we need
not to repeat, but from which we must learn.
If you are interested and would like to know more, you may contact me, and or the current team
leaders at the locations mentioned above. Furthermore, if you are not planning to do a thesis next
year, but are interested in any of these projects, and would like to get involved, please get in touch
all the same. We are always on the look out for enthusiastic junior members to contribute to the
Over the years, we have seen several designs for the steering system being trialled and implemented. Our
current system consists of an input shaft to a 90 degree bevel gear box, an output shaft to a rack and pinion.
Currently, our steering system suffers from a significant amount of slop and is relatively difficult to assemble
and adjust. The cause of both of these is mainly due to misalignment between the input and output shafts and
the rack and pinion (welding the mounts on the chassis distorts with sub standard jigging).
Task outline:
-
Work with chassis and ergonomics people to determine a comfortable steering wheel position
-
Investigate and implement a design with reduced slop
-
Ensure steering design complies with the chassis leg room template and satisfies all SAE scrutineering
rules
You will be working closely with the design members working on the: chassis, ergo, suspension, wheel
package.
Current steering system Steering mount jig in position
Ergonomics:
Ergonomics is an important part of any design, but is particularly vital to the design of a racecar. The primary
motivation is that a comfortable driver who has good visibility is a fast and consistent driver. 2/3 of the pointsat the competition are allocated to the dynamic events where the car competes in acceleration, skid pad,
autocross and endurance, and it is vital that we have driver who can perform well and consistently.
Task outline:
Utilise/modify existing ergonomics rig to develop a comfortable environment for the driver:
-
Driver position (comfort and visibility). This involves many variables such as recline angle, and leg and
arm positioning
-
Steering, shifter, pedal box and headrest positioning
- Work with suspension and steering designers to obtain wheel movements to best utilise the tyre
- Design and implement tyre temperature sensor brackets
- Experiment on track with smaller tyres
-
Research in to feasibility of 10” tyres
Hoosier R25B 20.0 x 7.5-13 Raw TTC data used in tyre selection and suspension design
Pedal Box:
The pedal box is a key part of the driver controls, and ensuring comfort for a range of different sized drivers,
and proper functionality is key. The current pedal box design is a fabricated and welded sheet metal frame,which causes numerous problems with distortion, and difficulty in adjusting along the slide rails. For the next
design, either a better jigging system or a machined design should be developed.
In an aim to improve cockpit ergonomics and driver visibility, the positioning of the pedal box and all of its
components will need to be re-evaluated.
Task outline:
-
Investigate machined design for pedal box frame
-
Develop ergonomic pedal box position
- Reduce mass of system compared to current and reduce component count
You will be working primarily with the brakes and chassis designers.
The use of a CAN bus system would reduce the overall mass of the wiring loom, through using a twisted pair
running to each corner of the car. Typically the wheel package of the car contains numerous sensors (wheel
speed, brake temperature, tyre temperature x 3) and so there is potential to simplify the wiring in this area
greatly. Currently the FSAE team has a prototype CAN bus system designed and built. Software for this systemneeds to be developed further, and the whole system needs to be implemented and tested.
Required skills/ interests: electronics, DAQ
CAN node PCBs V1 Prototype CAN node
PE3 Engine Control Unit:
For many years the FSAE team has been using an OEM Walbro ECU to control our Aprilia RXV 550 V Twin
engine. Due to FSAE rules mandating the use of a 20mm inlet restrictor (ie all air into the engine must pass
through this single throat), air flow is significantly impeded, and stock ignition and fuel maps (as tuned by
Aprilia) do not work. In addition air flow through the engine is affected by different sizing and routing of intake
and exhaust systems on our FSAE car as compared to the bike. Thus tuning of ignition timing and fuelling is
needed to achieve engine operation with acceptable power and fuel economy.
Tuning the engine has proven difficult due to the high level of user ‘unfriendliness’ of the Walbro ECU, and the
difficulty of finding a dynamometer to use. An in house dynamometer is being developed as a solution to the
latter issue, and a Performance Electronics ECU has been purchased as a potential solution to the former. The
main advantage of such a unit would be the ability to ‘live’ tune, whereas the Walbro required an engine shut
down, map change, and reflash to change any settings. The current issue is the pulse to sync function not
operating correctly, meaning the ECU does not know where the engine is in its operating cycle.
The scope of this thesis would be to solve this problem by either programming the pulse to sync function, or
through the implementation of a cam position sensor. Beginning to tune the current engine package would be
the next step, with a strong emphasis on improving the fuel economy. The suitable candidate would work withat least one other person to help with engine servicing and installation.
Project 1: Micro-combustion (up to two students) Micro-combustion is arelatively new field of
research that is fast
evolving due to interest inmicro-power generation
systems. Hydrocarbon
fuels are particularlyuseful here due to their
huge specific energy
which is about two orders
of magnitude higher thanthe best battery available.
The most difficult
problem is loss of flame
stability due to thermaland radical quenching.
This project studies the
interaction betweensurface and gas
chemistries using
configuration shown here.
Measurements are made for a variety of fuels and catalysts. Parallel calculations are alsoconducted using detailed chemical kinetics for the surface as well gaseous reactions.
These will be validated against measurements performed using gas sampling and
analysis.
Thesis only
Project 2a: Turbulent Propagating Flames (one student)This project is relevant for industrial safety, explosion risk
and internal combustion engines. The burning rate of
turbulent propagating flames is strongly affected by
turbulence which changes the structure of the flame front.The combustion chamber shown here is built to study flames
propagating from rest past baffle plates that generate
significant turbulence. Fast video images, velocity
measurements and laser induced fluorescence of hydroxylradicals (LIF-OH) will be made at various stages of flame
propagation. Processing the images to obtain an estimate of
dimensionless numbers and turbulence levels will be a focusof the project.
Project 2b: Turbulent Propagating Flames with stratification (one student)
This is a modified version of the combustion chamber sown here which is extended toinclude a secondary downstream chamber containing air. The mixture from the primary
chamber stratifies the flow into the secondary chamber while combustion is occurring.
The presence of obstacles will lead to further turbulence generation. The project involvesthe construction of the chamber along with initial testing and high-speed imaging of the propagating flames (using LIF-OH) at varying degrees of stratification.
Thesis only
Project 3: Transition from auto-ignition to premixed
flame propagation.This project is aimed at studying the temperature regime
over which fluid mixtures undergo a transition from auto-
ignition to premixed flame propagation. Auto-ignition is acritical process in diesel and homogeneous charge
compression ignition (HCCI) engines while premixed
flame propagation dominates processes in standard sparkignition engines. Both processes may exist in modern
engines. The model burner involves a fluid mixture
issuing in a co-flow of varying temperature as shown inthe opposite image. Measurements of temperature and
species concentration will be performed at various
experimental conditions.
Thesis only
Project 3a: Swirl stabilised flames (one
student) This mode of flame stabilisation is common in
industrial burners but the resulting turbulent flow
is very complex and difficult to calculate even in
the absence heat release. Large eddy simulation(LES) techniques are making significant
advances in this area but the preliminary finding
point to significant sensitivity of the calculationsto the condition in the boundary layers at the
burner’s surface. This project aims at studying
experimentally the effects of boundary layers on
flames stabilised on swirl burners similar to that
shown here. Measurements of the velocity andturbulence fields in the boundary layers of this
burner will be made.
Project 3b: Swirl stabilised spray jets and flames (one student) These complex flows are highly relevant in industrial applications such as boilers andfurnaces and may involve significant instabilities which affect the combustor’s
performance. A spray injector will be positioned in the central part of the burner and
swirl is applied to the surrounding air. High swirl numbers can be generated. The flow
and droplet fields will be measured for various levels of spray loadings. Flame stabilitycharacteristics will also be determined for the selection of flames for further
investigations.
Thesis only
Project 4: Biofuel sprays (one student)
Combustion of biofuels (or biofuel blends) in the form of sprayswill be more common in the future of many industrial applications
such as diesel engines, direct injection spark ignition engines, jet
propulsion units, furnaces and incinerators. The opposite burner isdesigned to study spray flows in a controlled environment in order
to resolve controlling physical processes such the interaction
between droplets and turbulence. The atomization, evaporation,
mixing, and combustion characteristics of spray jets and flames areimportant stages which remain only vaguely understood. Laser
diagnostic tools will be used to measure the velocity and
composition fields as well as the droplet number density and size
distribution in controlled spray flows.
Thesis only
Project 5: Stratified Combustion (one student) This is a new project aimed at studying the characteristics of stratified combustion under
conditions of high shear rates. This mode of
combustion is highly relevant in modern engines butremain vaguely understood particularly at high
turbulence levels. A new burner, consisting of two
concentric tubes feeding premixed fuel-air mixtures atdifferent equivalence ratios has been developed. Both
tubes are centred in a hot co-flowing stream of
combustion products. A schematic of this burner isshown here. The project will study the stability
features of this burner under different levels of
stratification.
Thesis onlyProject 6: Droplets/Particles in flows with temperature gradients (one student) This is a new project aimed at studying the dynamics of droplets and particles in
turbulent flows where a temperature gradient is imposed. It is envisaged that the localfluctuations in temperature will affect the local dissipation as well as evaporation rate of
particles. A simple rig will be constructed for this experiment where measurements of
velocity and temperature fields will be performed.
Long before Finite Element Analysis was developed, people were participating in sports and as
competition intensified is became clear that for many sports, the equipment used played as
important a part in performance as did the athlete. With the use of modern materials and
manufacturing processes there is always scope for maximizing the performance of sporting
equipment. Traditionally improvements were incremental, as athletes fed-back suggestions to
manufacturers and new prototypes were built and tested. Given the cost of tooling for many of the
current manufacturing methods, carbon fibre with resin infusion to mention one, it is clear that such
build and test iterations are not as preferable given the potential of limited success and high cost.
Modern simulation techniques are capable of examining a “day–in –the-life” of an object and froman examination of the envelope of response the most sensitive regions can be detected. Iteration
on the design variables, provided they remain within any constraints, physical or otherwise, can be
incorporated to investigate their effect on performance. Methods such as Design of Experiments
(DOE) and Response Surface Analysis (RSA), genetic algorithms (GA) and Monte-Carlo Methods are
being increasingly applied to achieve optimisation goals
For many sports the outcome depends in the interaction between the sportsperson and the
equipment; boot with ball; bat with ball; bow and arrow, and so on. Previous research by my
students has looked at tennis, cricket, and soccer. Although interesting results were obtained and
valuable learning took place there are still many unanswered questions.
Pictures of ball impact in centre of tennis racquet and off-centre strike of cricket ball on bat.
Selecting this area for a project will involve selection of a sport, identification of desired
improvements, leaning non-linear transient Finite Element Analysis with contact and other
simulation skills.
-----------------------------------------
An innovative and exciting new product is about to be launched onto the global
market. There are challenges on how the technology of this product is described as well as
devising a marketing strategy. This research would suit a student who is doing a double
degree in Engineering and Commerce. Contact Professor Grant Steven([email protected] ) for more information.
Thesis Projects in Thermodynamics or Fluid dynamics
1) Laboratory Investigation of the Natural Ventilation Heating and Cooling of the AMME Building.
The heating ventilation and cooling of a building can be modelled in a laboratory setting using
sources/sinks of fresh and saline water as a proxy for thermal heat flux. The aim of this project is to
produce a simple experimental rig representing the AMME building (J07) in the fluids laboratory using this
approach. The student would then be able to use dye visualisation and image capturing techniques to
obtain estimates of the temperature distribution in the building and suggest remedial measures to improve
airflow in our building.
(You will gain skills in: Fluid Mechanics / HVAC / Design and Commissioning of Experimental Rigs/
Experimental Methods / Data Analysis and Processing)
2) Laboratory Investigation of Mixing in Displacement Air-Conditioning- Fountain Flow/Negatively Buoyant
Jets
In displacement air-conditioning a situation can arise where a hot air jet is directed vertically upwards into
a cool room or a cool jet downwards into a warm room. In these situations buoyancy forces oppose the
inflow forming a kind of fountain like flow. If we understand the mixing between the fountain and theambient environment we can estimate the temperature distribution in the room and the turnover time for
ventilation. At present these attributes are poorly understood. This project will use an existing laboratory
rig to investigate these types of flows and aim to provide fundamental understanding of the flow regimes.
These flows are also important in other contexts. Erupting volcanoes also behave like a fountain flow
initially, and the mixing between the rising plume and the ambient determines whether the eruption
collapses as a pyroclastic flow. The rejection of hyper saline water from desalination plants often takes
place in ocean outfalls. These outfalls have the characteristics of a fountain flow. Designers must ensure
there is sufficient mixing at the source to provide dilution of the saline flow.
(You will gain skills in: Fluid Mechanics / Experimental Methods / Data Analysis and Processing)
Characterisation of fracture energy of tough adhesives using thick adherendsThe work includes experimental characterisation and FEA simulation aiming to find the
correction factor for the current formulae for the very thick DCB (double cantilever beam)
specimens
2) Characterisation of damage growth in carbon fibre composites using electrical resistance
measurements
The work includes experimental characterisation and FEA simulation aiming to find the
relationship between the indentation damage state and the change in electrical resistance.
3) Fabrication of fibre composites using filament winding with in-situ impregnation
4) Determination of crack growth in composites using acoustic sensors
This is a fun project with a serious side. It involves the integration of an Oculus Rift
VR display with integrated head tracker to a stereo camera mounted on a PTU which
is in turn mounted on an off-road RC car.
The serious side of this development is that such devices can be used to control roversexploring the moon and near-earth objects such as passing asteroids (where the
latency isn’t too long)
Research Proposal (Thesis Only)
Build the PTU and integrate a pair of good quality web cameras
Using a Raspberry Pi, or similar processor link the cameras wirelessly to a PC
talking to the Oculus
Wirelessly link the head tracker to the PTU on the RC car
Optimise code to minimise latency
Required SkillsExcellent mechatronics skills including electronics, software development,
Outdoor Golf for the BlindSupervisor: Graham Brooker, ACFR [email protected]
As golfers age, many start to suffer from Age Related Macular Degeneration. Thiskeeps them at home where they irritate their partners.
We would like to develop a system that allows previously competent golfers to
continue to play the game even once they have difficulty in seeing the ball on the tee.
Research Proposal (Thesis Only)
Consider a number of methods that can be used to help the golfer align hisclub with the ball, and align in the correct direction for his shot, prior to
Outdoor Golf for the BlindSupervisor: Graham Brooker, ACFR [email protected]
Electronic devices to detect bat calls are fairly commonly available but generally quiteexpensive. Two different principles can be applied; the first is to down convert the
ultrasonic signal to the audio range, and the second is to digitise and stretch the signal.
Research Proposal (Thesis Only)
Investigate the different techniques used, and try to determine why thesedevices are so expensive
Develop the electronics and the software to perform the function in a low cost
manner
Build into a robust battery powered device
Travel around and record the calls of as many bats as you can
Outdoor measurements have shown that the radar cross sections (RCS) of high-velocity bullets is up to 5dB higher than those obtained from static measurements of
the same object. The mechanism that results in this increase is unknown.
This has implications for the RCS of the new generation of stealth aircraft when
travelling at high speed
This project aims at investigating the phenomenon by measuring the RCS of a number
of different shapes under more controlled conditions using a supersonic nozzle.
Research Proposal (Thesis Only)
Complete the integration of a 77GHz radar and a data acquisition system
Because of the size of the bullets, it is possible to generate the appropriate
supersonic airflows using a supersonic nozzle driven by a low pressure
reservoir
Assemble the compressor and reservoir coupled to the supersonic nozzle
Confirm that the flow from the nozzle reaches the required speeds over a cross
section that is sufficiently large to encompass the bullet
Measure RCS of a number of different types of bullets at a number of differentspeeds and from different perspectives
Try to determine what causes this increase in RCS
Write a journal paper
Required Skills
Some understanding of microwave and millimetre wave radar
It has become practical to harvest sufficient power from biological processes,movement, vibration or heat gradients etc to generate sufficient power to run modern
low-power electronic systems.
Initial work has been conducted to obtain the acceleration profiles from a flying
pigeon, and these will have been implemented on a vibration table (1 axis) to test
energy scavenging options.
Research Proposal (Thesis Only) Investigate existing energy scavenging systems and select one that would be
suitable to power a typical radio beacon and data logger attached to a bird
Develop such a system and demonstrate on a vibration table that it could
supply sufficient power
Ethical approval has been obtained to test a data logger on a pigeon, and it is
possible that this approval could be extended for tests of the scavenger
Low Cost Hand Orthotic (Continuing project)Supervisor: Graham Brooker, ACFR [email protected]
A low cost hand orthotic driven by pneumatic artificial muscles (PAMs) that may
have applications in rehabilitation and in astronaut’s gloves has been under
development for some time. The initial technique (shown in the figure) relied on the
flexibility of a composite material (carbon or glass fibre). However these were not
sufficiently strong and flexible. Subsequent attempts to use torsion springs are under
consideration but are too bulky and too complex to be effective.
Research Proposal (Thesis Only)
Perform a comprehensive review of the existing methods that could be used todrive this orthotic (passive closing and active opening)
Using the PAMs to open the orthotic, investigate alternative passive methodsof closing that will be compliant and can accommodate different sized hands
Scanning Millimetre-Wave RadiometerSupervisor: Graham Brooker [email protected]
Radiometry at 94GHz offers an excellent option for ground imaging during adverse
weather or at dusk and dawn when visible and IR sensors suffer from poor performance.
(a) (b)
Figure: Existing radiometer hardware and radiometric images
Research Proposal (Thesis Only)
A prototype scanner and radiometer has been built that operates at 94GHz
A new mirror must be made using the 3D printer as the old one has drooped
Both the scanner and the millimetre wave receiver hardware need to be
hardened for installation in a UAV
Interfaces to a microcontroller to read the radiometric signal, and the mirror position as well as any aircraft INS data that is available must be developed so
that images can be produced
Software to produce strip-map radiometric images from a moving aircraft
A significant (10-15%) proportion of babies require assistance during the process of
vaginal delivery. This involves application of either forceps or ventouse (vacuum),
allowing the acoucher (the person who assists at a birth) to guide the presenting part
through the birth canal, onto the perineum and through to delivery.
Women and babies who have an operative vaginal delivery have higher risks of
traumatic injury related to the delivery process. The forces involved in delivery are
poorly understood. We hypothesize that injury would be more likely in circumstances
where higher forces are developed during the delivery process. Real timemeasurement of these forces would provide the acoucher with information about the
risks associated with delivery
Research Proposal (Thesis Only)This project involves the development of an instrument to quantify the forces exerted
during operative vaginal delivery. The point of contact between the instrument and
the acoucher (i.e. handle of instrument to gloves) is sterile, and this device needs to be
able to be applied in this environment. The device should be able to quantify the
amount of force and record the direction of force during the delivery process. The
device will first be used in simulations of the birthing process, as proof of concept,
prior to being applied to clinical studies.
Required SkillsSome biology (or an interest in the subject)
Quiet stance is supported by 3 sensory inputs: proprioception, vision and vestibular
sensation. These 3 sources of information overlap considerably allowing subjects with
the loss of one or two modalities to stand and walk safely. Here we propose to
examine the effect of visual stimulation on the stability and trajectory of gait and on
the stability of stance.
We hope to artificially manipulate the visual surrounds to create an illusion of
movement in the pitch, yaw or roll planes.
Research Proposal (Thesis Only) Integrate a head mounted display (VR goggles) with a head tracker capable of
measuring position and acceleration in 3D
Use this display to create of a normal visual surround which can then be
manipulated
record the subject’s standing balance using the inertial measurement unit
attached to the display.
The subjects will be tested whilst standing still and walking a straight line, and
during normal visual stimulation vs abnormal visual stimulation is recorded Specifically, during stance, anteroposterior and mediolateral deviation during
a 10 second period will be recorded.
Whilst walking, change of trajectory produced by apparent rotation in yaw and
The SVV is a useful measure of human perception of verticality. It is abnormal ininner ear balance disorders as well as brainstem stroke. During acute inner ear balance
disorders, the eyes tort towards the affected ear. Since the visual meridian is also
similarly torted, horizontal objects are perceived as tilted to the unaffected side. To
correct this apparent tilt, the subject will bias it towards the affected side. Conversely,
in upper brainstem strokes, the SVV is offset to the unaffected side. This non-
invasive test conveys useful diagnostic information in subjects with acute of vertigo
and is used in specialized balance clinics. We propose to develop a portable electronic
test of SVV that can be used at the bedside. This will enable the test to be used by
non-specialized centres and even in the patient’s own home.
Research Proposal (Thesis Only) Assemble the following hardware:
o
A pair of VR goggles capable of projecting a linear beam upon a
circular screen at a viewing distance of 40 cm.
o User controlled joystick.
o A head mounted attitude heading reference system (AHRS).
Develop the following software using LabVIEW:
o Monitor the AHRS to ensure the head is held vertical with less than
one degree error. Deviations outside this range will result in rejection
of the patients SVV setting.
o
Deliver 10 consecutive presentations of the beam at random anglesfrom -45 -+45 degrees.
o
Read the joystick as the subject returns the beam to his/her perceived
vertical
o The final position for each presentation will be logged, and averaged to
Engineering studies of biological tissues often involve controlled loading of very small orvery soft tissues. This thesis involves expansion and optimisation of a micro-mechanicaltesting apparatus that is currently used for biomechanics studies of soft tissues. Some
examples of the potential applications of this apparatus include 3-point-bending of mouse bones, tensile strength of a human hair or mouse tendon, and cyclic loading of joint cartilage.
Note: the apparatus is located at RNS Hospital at St Leonards, and the student will beexpected to perform the integration and testing at the Murray Maxwell BiomechanicsLaboratory there.
Research Proposal (Thesis Only) Develop a custom LabVIEW program for precision control of a linear motor to
provide maximum flexibility in a range of testing regimes:o cyclic loadingo threshold conditions
o force control
Develop data acquisition system to acquire and log data from displacement and forcesensors
There is scope within this thesis project to include optional mechanical design andmanufacture:
o miniature 3-point-bending apparatus o mechanical testing of synthetic or biological tissues (e.g. Silicone gels, mouse
Tactile Feedback for a Prosthetic HandSupervisor: Graham Brooker, ACFR [email protected]
In 2014 Mahdi Elsayed made a low cost prosthetic hand and arm. This year we would
like to fit the finder tips with pressure sensors to drive vibro or electro tactile
transducers to provide an amputee with feedback
Research Proposal (Thesis Only) Consider various ways of integrating pressure sensors into the existing (or
modified) fingertips of the prosthesis
Ensure that any electrical connections do not interfere with the tendons Develop interfaces to vibro or electro tactile transducers that can be attached
to the amputee
Integrate the complete system onto a harness that can be attached to a non-amputee
Research Proposal (Thesis only, 1 or more students)
We have built many robots and sensors over the years and have learnt one important lesson:
There are many more ways for a robot not to work than for it to work correctly!
Even the robots that do work may fail under certain known conditions. It is likely that there are
many unknown conditions under which they may also fail, particularly if someone, i.e. you, is goingout of their way to find that ‘unknown’ failure mode and exploit it. The most interesting case is when
the failure mode goes undetected and is then used for nefarious purposes.
In a world where autonomy is increasing along with the accessibility of cheap, almost throw-away
systems, which could be turned to doing naughty things, we need to know where the weak points
are so that we can do something about it.
Required Skills
Electronics
Signal Processing
C or C++ and MATLAB Programming
You should have done (or be planning to do) the Sensors and Signals course.
An interest in pursuing this topic at postgraduate level would also be a benefit.
Vertical nanowire arrays are a new technology for electrical probing and biomolecular
delivery to individual live neurons in a slice of a rat’s brain (liberated from the rat’s body and
kept alive in a bath of bovine serum). This thesis project is based on collaboration with MIT
and Harvard University exploring the possibilities of this new technology for rapid-
throughput neuroscience.
A neuron’s electrical dynamics are highly nonlinear and difficult to understand, but are
extremely important as the key to understanding intelligence. Our role is to rapidly create ahigh-fidelity computational model of the neuron from the signals recorded via nanowires, so
that an accurate simulation can be built of the entire neuronal network, i.e. “reverse
engineering the brain” – one of the grand challenges of science in the 21st century.
Above: a live neuron from a rat’s hippocampus being probed with a patch clamp.
This thesis topic would be suitable for Biomedical and Mechatronic students. Advanced
topics are available for those doing a double degree with Mathematics or Computer Science,
including the use of graphics processing units (GPUs) for rapid neuron modelling.
Interested students should contact Dr Ian Manchester via email ASAP:
As robots move out of the factories and into the wider world, many creative methods of
locomotion are being proposed. Legged robots in particular are suitable for traversing terrain
too rough or irregular for wheels to be useful. Recently, a new type of biped robot called
“dynamic walkers” has been invented. These robots are based on co-design of the physical
mechanism and the feedback control to generate highly efficient motions, much like a human.
They are far more efficient than well-known robots such as Asimo or Big Dog. Some are so
efficient they can walk down a shallow slope without any powered actuation at all!
At the Australian Centre for Field Robotics (ACFR) we are designing new experimental
biped systems which will be able to walk over rough terrain in a highly naturalistic andefficient manner. There are several options available for thesis or project work, covering
mechanical design and construction, physical modelling and simulation, implementation of
real-time feedback control, and computational analysis.
Above: one of our biped experiments at ACFR.
These thesis and project topics would particularly suit Mechanical and Mechatronic
students with an interest in dynamics and control, state of the art robotics, or design of
energy-efficient mechanisms.
Interested students should contact Dr Ian Manchester via email ASAP:
Engineered systems are getting more and more complex, and increasingly the design process
relies on advanced mathematical and computational methods. A particular focus recently has
been using methods from semialgebriac geometry and semidefinite optimization to design
and guarantee performance of highly nonlinear dynamical systems.
Above left: a rotary inverted pendulum (“Furuta pendulum”): a nonlinear, underactuated mechanical system and
a popular test-bed for advanced nonlinear control theory.
Above right: a graphical representation of a three-dimensional spectrahedron, an important object for proving
stability of nonlinear dynamical systems.
There are many challenging opportunities available in this area, both with experimental andtheoretical focus. This project would suit ambitious and creative students from any stream,
with extra possibilities for those doing a combined degree with mathematics or computer
science.
Interested students should contact Dr Ian Manchester via email ASAP to discuss concrete
The Intelligent Vehicles and Safety Systems Group (IVSSG: its.acfr.usyd.edu.au ) is part of the
Australian Center for Field Robotics (ACFR). Our research is related to improving the safety and
performance of vehicles with a range of projects related to sensing, perception, user interfaces
and automation. This is a very important area of research with the potential of improving safety,
minimizing environmental impact and increasing performance for the transportation of people
and goods. We are offering positions for undergraduate theses in a range of topics related to
intelligent vehicles including (but not limited to):
Determining Position
Most projects involving vehicles require a good estimate of position. The most common way to
do this is using a GPS sensor, though these have well understood limitations. In vehicles,
problems arise when driving near tall buildings (urban canyon effect) as well as in tunnels and
covered areas.
We are currently looking into new methods of using sensors such as gyroscopes, accelerometersand odometry incorporated with GPS and GLONASS to improve the estimation of position. There
is an opportunity for several undergraduate theses in this area, with great potential in exploring
both the experimental and theory behind estimating position.
Dead Reckoning (red dots) uses sensors to estimate position without GPS
Embedded microcontrollers such as the raspberry pi have the capability of capturing video and
performing complex image processing on board. For vehicle applications, this can be used to
track the position of the vehicle in the lane, perform visual odometry, detect people or bicycles,
detect road signs and a host of other applications. A project in this area would focus on usingopen source tools such as scikit-image.org or opencv.org to process images in an embedded
system to solve problems in the area of intelligent transportation systems.
We are working on projects that aim to investigate and understand the conditions that are necessary for
a human to be comfortable in the close presence of a robot, and to provide an environment foreffective, intuitive human-robot interaction. There are many opportunities for highly motivated and
capable students to work on key areas of robotics and human-robot interaction. Areas of interestinclude but are not limited to
Detection and tracking of people using vision or RGB-D sensors, including recognition andinterpretation of human features and gestures;
Interpretation of prosody and frequency content in human speech;
Haptics, including sensing and interpretation of surface- and joint-based force/torque sensing;
Robot navigation and path planning in the presence of moving objects (people), including planning and execution of paths coordinated with human movement;
Design and implementation of robot behavior, including whole-body and coordinated armmotion.
Students will need strong programming skills (Matlab or C/C++) for topics in most of these areas.Specific project areas could include (but are not limited to)
1. Accurate detection, tracking, identification and re-identification of people
A multi-camera, multi-person tracker has been implemented. There is broad scope for investigationand improvement of the tracker, including new algorithms for improving tracking accuracy; how people can be distinguished and identified; how best to deal with “merging” and “splitting” of peopletracks as they cross; identification of the person‟s facing direction and/or eye gaze direction; methodsfor automatic or rapid camera calibration; methods for determining the best placement and sequencingof sensors for covering larger areas; and investigation of various sensor configurations for data
acquisition and information processing. It will also be important to re-identify people who previouslyhave interacted with the robot.
2. Estimation of human intent and/or human affect (emotion)
There is great potential to improve human-robot (or human-computer) interaction if the intent of the person can be identified. Social human-robot interaction and some classes of human-computerinteraction can be improved if the person‟s affective (emotional) state can correctly be identified.Topics could involve using computer vision for face location and tracking; to identify facial cues; body-part detection and tracking; to identify body movements and tactile interactions; or identifyingintent and emotional content in speech.
3. How to choose a person
How should a robot choose a person to interact with if there are several people to choose from? Byassessing points of interest in an area and the locations and movement of people, the robot could perhaps use this information to interact with „free‟ people, or with „busy‟ people. By identifyinggroups of people, the robot could choose to interact with people who are not part of a group.
4. How to approach a person
How should a robot approach a person? What factors, such as position and orientation of the personand the robot in a room, should be taken into account? The project area could include topics in poseestimation; path planning, including the “freezing robot” problem; and selection of a suitable person tointeract with.
Mawson is an all terrain rover that has been in operationover the last two years as part of a space robotics
program. It needs to be overhauled. We are looking for astudent who has an interest in advance computer
hardware and software. The objective of the thesis is togive Mawson a whole new lease on life. The thesis wouldcomprise of:
Selection of new computer hardware
Software to drive motors and read sensors
already on board.
Code for teleoperationYou will work closely with our engineers as part of thedesign and implementation process.
Aero, Aerospace, MX or MXSpace
Continuum now has an arm that will give this rover theability to look closely at objects and generate detailmodels of the object and of the terrain. Code is written inMatlab/Simulink. We are looking for 3 students for thefollowing thesis topics:
1) Use the laser scanner on the arm to build a 3Dmodel of a target rock given multiple viewpoints.Challenges include object segmentation from thelaser data and motion planning for the arm.
2) Use the laser scanner on the arm to create anelevation map of the environment and then use
this map to develop a path planner forContinuum.3) Develop a energy model for the arm. e.g for a
given trajectory calculate the energy used based
on joint torques, etc. As an extension perhaps plan energy-optimal collision free trajectories for
a given initial and final poses.You will work closely with our engineers as part of thedesign and implementation process.
Aero, Aerospace, MX or MXSpace
Mammoth is w wheel-legged robot. Code is written in
Matlab/Simulink. We have a number of thesis topicsincluding:
1) A student looking at how to create a rapid map ofthe Mars Yard using onboard laser sensors andgenerating traversability maps for Mammoth.
2) A student working on novel User Interfaces fortele-operating Mammoth including low-levelcontrol to high-level planning.
3) A student working on the planning problem, in particular to look at clambering gaits.
4) A student to investigate building a more effective
force sensor unit to identify if Mammoth's wheels
are touching the ground reliably.You will work closely with our engineers as part of thedesign and implementation process.
Mars Analogue Multi-MOde Traverse Hybrid (MAMMOTH) is a complex, reconfigurable,
wheel-on-leg rover designed and developed at the Australian Centre for Field Robotics(ACFR). MAMMOTH is a robot with high degree of freedom. Effective motion planning for
MAMMOTH is a challenging task and requires considerable amount of computing power. In
order to accelerate the motion planning we would like to use parallel computing.
In this project, you will use Jetson TK1 from NVIDIA. It is a powerful platform for Tegra K1
embedded applications with 192 CUDA cores. Jetson TK1 is a small and low-cost board to
develop high performance solutions in computer vision, robotics, security, and aerospace.
Using Jetson TK1 and parallel computing techniques you will develop and test sampling
based motion planning algorithms for MAMMOTH.
This is an exciting and challenging topic and suitable for talented students with strong SWprogramming experience.
Ever increasing popularity of mobile devices has created an unprecedented market for
innovative mobile apps. Although the overwhelming majority of mobile apps are using only
the hardware of the mobile device and some web services, there is an increasing interest indirectly linking mobile devices with external physical platforms. AR-Drone mobile app is an
example in which an external physical platform (an AR-Drone multicopter) is controlled by a
mobile device (such as iPhone or iPad, etc.).
This thesis is focused on mobile app development for robotics platforms in which students
will design, develop and demonstrate a teleoperated robotic platform using a mobile device
(such as iPhone, iPad or an Android device). This project requires strong, hands-on
electronics and software design and development skills and experience. Furthermore,
experience in IOS and/or Android along with their app development environments
(Objective-C, Swift and Java respectively) as well as experience in web-technologies (PHP,
HTML5, CSS3, JQuery on embedded Linux platforms) is essential.
Microrobotics is a rapidly developing field deals with robots smaller than 1mm. Applications
of microrobotics range from in-vivo medical operations, to micro-fabrication, to micro-scale
particle manipulation. Recently we have developed an experimental setup in which multiplemicrorobots have been operated on a 2D test arena using combination of magnetic field and
mechanical surface waves. The size of these microrobots varies between 200-2000 microns.
This thesis is focused on developing a path planning and control system for a team of
microrobots on a 2D test arena. This project requires knowledge and interest in physics,
particularly in the fields of electricity and magnetism, oscillations and waves. Furthermore
hands-on experience in electronics circuit design, programming in Simulink, C/C++ and
Microrobotics is a rapidly developing field deals with robots smaller than 1mm. Applications
of microrobotics range from in-vivo medical operations, to micro-fabrication, to micro-scale
particle manipulation. Recently we have developed an experimental setup in which multiplemicrorobots have been operated on a 2D test arena using combination of magnetic field and
mechanical surface waves. Size of these microrobots varies between 200-2000 microns.
This thesis is focused on the development of a vision-based closed loop control system for
the microrobots. This project requires knowledge and interest in physics, particularly in the
fields of electricity and magnetism, oscillations and waves. Furthermore hands-on
experience in electronics circuit design, programming in Simulink, C/C++ and Python are
essential. As the microrobots moves very fast on the 2D test arena, the vision system has
tpo be fast to track the microrobots. Therefore hands-on experience on OpenCV would be