Tools implementedat CIC (Centre d’Ingénierie Concourante)igosat.in2p3.fr/wp-content/uploads/2016/06/13_2016... · Phase 2,3 Analysis, Compararisonof scenarios, Optimisation and
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Tools implemented at CIC(Centre d’Ingénierie Concourante)
Jean-Luc Le GalPedro Rocha Lopes
Plateau d’Architecture des Systèmes OrbitauxCentre National d’Etudes Spatiales
Workshop Cubesat Etudiant9 & 10 Juin 2016
1
SOMMAIRE
2
The Concurrent Engineering Facility
Tools
The engineering satellite model
Description of the mission
CubeSat equipment catalogue
Conclusion
The process
3
MissionDefinition
Review
Mission Advisory Group (user representatives,
customers…)
CNES team, partners, industry support …
Phase 2,3
Analysis, Compararison of scenarios, Optimisation and
Sélection
Phase 1
Identification of drivers (mission, program, technical) and
scenarios
SOMMAIRE
4
The Concurrent Engineering Facility
Tools
The engineering satellite model
Description of the mission
CubeSat equipment catalogue
Conclusion
CIC approach :Establishment of a referential for the satellite budgets
Satellite modélisationMission description
Masse Centrage Inertie
5
THERMIQUE
PROPULSION
TELECOMMUNICATIONS
SCAO
ENERGIE
ANALYSE MISSION
Bilan de Puissance
Bilan d’ErgolsSTRUCTURE
Configuration
INSTRUMENT
Bilan de liaisons
Technical reference based on standards
Standards :
ECSS-ETM-10-25A :
Engineering design modelCCSDS protocol
Integrated Design Model Orbit and attitude description
Editors :
Viewers :
IDM CIC CelestLab
IDM View VTS
6
IDM-CIC : A structured and shared view of the satellite
Excel description of :
- equipements,
- sub-systems,
- payload,
- satellite,
- mission phases
to perform budgets :
- Mass Center and Inertia
- consumed power
- propellant
- …
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Geometric representation
8
COG Inertia Matrix at Originx [mm] y [mm] z [mm] Ixx [kg.m²] Ixy [kg.m²] Ixz [kg.m²]
984.080 1322.7 88.4 136.3 4471.236 -71.430 -125.191
Mass
[kg]
36 36
▼
▼ PCDU
PCDU-1 Mode MACQ MDGS
10.5 8.3310.5 8.33
Margin 5% 0.525 0.4165
▼ SADM
SADM-1 Mode On On
3.92 3.923.92 3.92
Margin 5% 0.196 0.19614.42 12.2514.42 12.25
EL1_SS7_Power_max
Power
PowerPower
PowerPower
EL1_SS10_Power_nomEL1_SS10_Power_max
Developpements in progress (1/2)
9
Management of assemblies : ability to buildor to import parametric assemblies withlocal coordinate systems and joints
Positionning of local coordinate systems in components / assemblies (attachmentpoints)
Topological operations with MCI calculation
Developpements in progress (2/2)
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Management of « layers » allowing management of « points of view »
Management of « categories » : types of equipements to standardization of properties
Import/Export STEP interface
…
SOMMAIRE
11
The Concurrent Engineering Facility
Tools
The engineering satellite model
Description of the mission
CubeSat equipment catalogue
Conclusion
CIC exchange protocol :Solution based on the CCSDS standard
CIC Protocol Position and velocity data :
OEMFile
Attitude data :
AEMFile
Complementary data :(geometrical, thermal, electrical..)
MEM File
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VTS : Visualizationof mission phases
Mistigri_OEM.txt
Mistigri_AEM.txt
SatelliteConsumedPower_MEM.txt
AngleSunNormSA1_MEM.txt
Download VTS :http://logiciels.cnes.fr/VTS/fr/index.html
Configuration module
Time line
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Working axes
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SIMU-CIC module : Génération of ephemeris (position, attitude,…) from a description of a mission scenario (orbit, pointing)
IDM-View / VTS coupling : Visualization of flux (solar, albedo, terrestrial) and temperatures
Energetic budget module dedicated to preliminary studies at CIC :
Search the worst cases
DoD establishment
15
The Concurrent Engineering Facility
Tools
The engineering satellite model
Description of the mission
CubeSat equipment catalogue
Conclusion
16
The catalogue
A compilation of standard CubeSatcomponents (referenced on the web), organized by subsystem (STR, PWR, OBC, COM..).
Each component is represented by a 3D IDM model with mass and consummed power.
The electronic boards are representedin several configurations of stackconnectors, with possibility of modifying them easily.
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Implementation
Import components…
…. then positioning
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Budgets
MCI : complete models
Consummed power : satellite modes (stand-by, acquisition, maneuver…) to define
NB: technical data are based on information collected on Internet. It’s important to check the validity of these data with the manufacturer’s latest information.
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The Concurrent Engineering Facility
Tools
The engineering satellite model
Description of the mission
CubeSat equipment catalogue
Conclusion
CONCLUSION
Models developed with CIC applications allow to structure the project for :- Establish system budgets- Constitute a technical reference for engineering analyses
Used by industrial contractors these tools are :- Well suitable to the design of nano-satellites - And the approach is a trainer for students
Tools are available to Universities / Engineering Schools / Scientific Laboratories
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