Mechanical Mechanical Engineering? Engineering? What is What is MST @ MSU 2006 Jeff Rhoads and Terry Ballinger Jeff Rhoads and Terry Ballinger
Mar 28, 2015
Mechanical Engineering?Mechanical Engineering?What isWhat is
MST @ MSU
2006
Jeff Rhoads and Terry BallingerJeff Rhoads and Terry Ballinger
OutlineOutline
• What is Engineering?
• Intro to Engineering Movie
• What is Mechanical Engineering?
• Sample ME Topics
• Alternative Energy Sources
• MEMS
• Lesson Overview
What is Engineering?What is Engineering?
What is Engineering?What is Engineering?
The application of The application of sciencescience & & mathematicsmathematics to design, to design, build, and maintain devices and processes that are build, and maintain devices and processes that are useful to humankinduseful to humankind..
What is Engineering?What is Engineering?
Useful Things
Stuffconvert
What is Engineering?What is Engineering?
convertStuff
MatterMatter Sources of EnergySources of Energy ……
…useful to humankind
CarsCars Air ConditionersAir Conditioners BridgesBridges Clean WaterClean Water ……
Useful Things
What is Engineering?What is Engineering?
Mechanical Engineering?Mechanical Engineering?
Mechanical Energy
Non-Mechanical Energy convert
What isWhat is
Mechanical Engineering?Mechanical Engineering?
Mechanical Energy
Non-Mechanical Energy
ElectricalElectrical ChemicalChemical ThermalThermal NuclearNuclear ……
convert
What isWhat is
Mechanical Engineering?Mechanical Engineering?
Mechanical Energy
Non-Mechanical Energy
PotentialPotential KineticKinetic
ElectricalElectrical ChemicalChemical ThermalThermal NuclearNuclear ……
convert
What isWhat is
Mechanical Engineering?Mechanical Engineering?
Mechanical Energy
Non-Mechanical Energy
Conversion involves the design and manufacture of:
convert
ToolsTools MachinesMachines EnginesEngines ……
What isWhat is
ExamplesExamples
ExamplesExamples
ExamplesExamples
What do ME’s Study?What do ME’s Study? Mechanics: machines, structures, … machines, structures, … Fluids: aerodynamics, pumps/fans, … aerodynamics, pumps/fans, … Thermal Sciences: heating/cooling, energy, … heating/cooling, energy, … Controls: interface electronics, … interface electronics, … Manufacturing: matl’s handling/processing, … matl’s handling/processing, … More…More…
Modern Mechanical EngineeringModern Mechanical Engineering
THE FUTURE:THE FUTURE:ALTERNATIVE ENERGYALTERNATIVE ENERGY
Alternative Energy - MotivationAlternative Energy - Motivation
2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves
In the United States…
2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production
In the United States…
Alternative Energy - MotivationAlternative Energy - Motivation
2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production 5% of Worlds Population5% of Worlds Population
In the United States…
Alternative Energy - MotivationAlternative Energy - Motivation
2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production 5% of Worlds Population5% of Worlds Population 31% Total Oil Consumption31% Total Oil Consumption
(2/3 imported)(2/3 imported)
In the United States…
Alternative Energy - MotivationAlternative Energy - Motivation
Why Oil?Why Oil?
Historical sources of energy:
Wood Coal Oil/Gas Nuclear
Why Oil?Why Oil?
Historical sources of energy:
Wood Coal Oil/Gas Nuclear
One barrel of oil =
12 person-years of manual labor
Global Oil Production & DemandGlobal Oil Production & Demand
Energy ConsumptionEnergy Consumption
What Should We Do?What Should We Do? Increase nuclear energy output?Increase nuclear energy output? Increase alternative energy output Increase alternative energy output
(solar, wind, wave, geothermal, …)(solar, wind, wave, geothermal, …) Reduce consumption?Reduce consumption? All of the above?All of the above? OR: Go back to the caves? OR: Go back to the caves? We can’t!We can’t!
Alternative Energy Sources…Alternative Energy Sources… NuclearNuclear HydroelectricHydroelectric GeothermalGeothermal WindWind Biomass, Agricultural Sources, and WasteBiomass, Agricultural Sources, and Waste SolarSolar Hydrogen from RenewablesHydrogen from Renewables
Complications….Complications….
Environmental Impact Environmental Impact CostCostSafetySafetyTechnologyTechnologyWill it make a dent?Will it make a dent?
So Why Try….So Why Try….
Application Specific EnergyApplication Specific EnergySolar PanelsSolar PanelsHydroelectric PowerHydroelectric PowerHydrogen Powered CarsHydrogen Powered Cars
Solar PowerSolar Power
Semiconductor(Silicon)
Hydrogen from RenewablesHydrogen from Renewables
DOE/EPA, 2005
Pushing the Envelope…Pushing the Envelope…
MEMSMEMS Micro-Electro-Mechanical-SystemsMicro-Electro-Mechanical-Systems
Small devices that integrate electronics, Small devices that integrate electronics, mechanics, and computing mechanics, and computing
Existing products: sensors for Existing products: sensors for acceleration (air bags), pressure (tires), acceleration (air bags), pressure (tires), temperature, ear implants, etctemperature, ear implants, etc
The future: biotech applications, sorting of The future: biotech applications, sorting of stem cells, biohazard sensors, etcstem cells, biohazard sensors, etc
MEMSMEMS Micro-Electro-Mechanical-SystemsMicro-Electro-Mechanical-Systems
Small devices that integrate electronics, Small devices that integrate electronics, mechanics, and computing mechanics, and computing
Existing products: sensors for Existing products: sensors for acceleration (air bags), pressure (tires), acceleration (air bags), pressure (tires), temperature, ear implants, etctemperature, ear implants, etc
The future: biotech applications, sorting of The future: biotech applications, sorting of stem cells, stem cells, biohazard sensorsbiohazard sensors, etc, etc
This is what I frequently work on!
How Small is Small?How Small is Small?
How Small is Small?How Small is Small?
200 People200 People
How Small is Small?How Small is Small?
650,000 Cans of Soda650,000 Cans of Soda
How Small is Small?How Small is Small?
30,000,000 #2 Pencils30,000,000 #2 Pencils
How Small is Small?How Small is Small?
>1x10>1x101515 MEMS Devices MEMS Devices(Quadrillions)(Quadrillions)
Tire Pressure SensorsTire Pressure Sensors
Cochlear ImplantsCochlear Implants
Cochlear ImplantCochlear Implant
MicromachinesMicromachines
MicromachinesMicromachines
What Else Does the Future Hold?What Else Does the Future Hold?
Nanotechnology – very small machines Nanotechnology – very small machines (one-billionth of a meter!) (one-billionth of a meter!)
Biotech AdvancesBiotech Advances ‘‘Space Age’ MaterialsSpace Age’ MaterialsMore – just use your imagination!More – just use your imagination!
Lesson OverviewLesson Overview
1. What is Mechanical Engineering?
2. Design: A Creative Problem-Solving Process (Straw Structure)
3. Dynamics: Gravity is Holding us Down! (Popsicle Stick Slingshot)
4. Why Things Float and Fly: Buoyancy and Aerodynamics (Airplanes)
5. Out of Control: The Need for Control System (Popsicle Stick Slingshot)
6. Manufacturing Madness (Assembly Line)
7. Energy and Work: Sources and Conversion (?)
8. Propulsion: How Fast Can You Go? (CO2 Propelled Boat)
9. Electromechanical Systems (Electric Motor)
10.Mechanical Vibrations: What’s Shaking?
MST@MSU MEMST@MSU ME
Straw StructureStraw StructureLesson 2 ActivityLesson 2 Activity
ObjectiveCreate a structure that will hold a bottle of water as high as possible.
DE
SIG
N
Popsicle Stick SlingshotPopsicle Stick SlingshotLesson 3-5 ActivityLesson 3-5 Activity
ObjectiveCalibrate the slingshot from Lesson 3 to accurately propel a plastic ball to a target at an arbitrary distance.
ObjectiveCreate a ground level launching slingshot that will propel a plastic ball as far as possible.
CO
NT
RO
LS
/ D
YN
AM
ICS
Airplanes!Airplanes!Lesson 4 ActivityLesson 4 Activity
ObjectiveDesign a set of paper airplanes which will fly the furthest/stay aloft the longest
BO
UY
AN
CY
& A
ER
OD
YN
AM
ICS
Assembly LineAssembly LineLesson 6 ActivityLesson 6 Activity
ObjectiveCreate an assembly line that will produce eight bean-filled fish as quickly as possible.
MA
NU
FA
CT
UR
ING
Assembly LineAssembly LineLesson 6 ActivityLesson 6 Activity
ObjectiveCreate an assembly line that will produce eight bean-filled fish as quickly as possible.
MA
NU
FA
CT
UR
ING
Energy and WorkEnergy and WorkLesson 7 ActivityLesson 7 Activity
ObjectiveTBD
EN
ER
GY
& W
OR
K
COCO22 Propelled Boat Propelled BoatLesson 8 ActivityLesson 8 Activity
ObjectiveCreate a CO2 propelled boat that travels the greatest distance in the minimum amount of time.
PR
OP
UL
SIO
N
COCO22 Propelled Boat Propelled BoatLesson 8 ActivityLesson 8 Activity
PR
OP
UL
SIO
N
ObjectiveCreate a CO2 propelled boat that travels the greatest distance in the minimum amount of time.
Electric MotorElectric MotorLesson 9 ActivityLesson 9 Activity
QuickTime™ and aMotion JPEG OpenDML decompressor
are needed to see this picture.
Ele
ctro
mec
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Sys
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ObjectiveCreate a CO2 propelled boat that travels the greatest distance in the minimum amount of time.