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CubeSat Design for Solar Sail Testing Applications. Phillip Hempel Paul Mears Daniel Parcher Taffy Tingley. The University of Texas at Austin. October 11, 2001. Presentation Outline. Project Goal. Background. Constraints. Candidate Solutions. Timeline. Conclusion. Project Goal.
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CubeSat Design for Solar Sail Testing Applications Phillip Hempel Paul Mears Daniel Parcher Taffy Tingley The University of Texas at Austin October 11, 2001
Presentation Outline Project Goal Background Constraints Candidate Solutions Timeline Conclusion
Project Goal • Design a Test Platform for Solar Sail Propulsion Technology • Measure Thrust • Measure Solar Sail Efficiency • Educational Experience • Provide Students with the Opportunity to See the Entire Satellite Design Process • Develop Orbital Trajectory and Satellite Orientation Simulation
CubeSat Project Background • Sponsored by Stanford University • Utilizes Picosatellite Satellite Designs that Perform Some Scientific Task • Involves Many Universities • Gives Students a Chance to Develop a Space Projects for Real Application
Presentation Outline Project Goal Background Constraints Candidate Solutions Timeline Conclusion
Constraints • CubeSat Prescribed Constraints • 10cm Sided Cube • 1 Kg Weight • Timing System to Delay Power-On • Space-Flown Materials • Adopted Constraints (for Simplicity and Reliability) • No Attitude Control • No Powered Systems (except required Timer) • No Communications Systems
Candidate Solutions Outline • Propulsion • Sail Material Selection • Tension lines • Reflectivity Optimization • Deployment System • Tracking and Communication
Solar Sail Material Selection Encounter Satellite Solar Blade Solar Sail
Solar Sail Material Selection Cosmos I Star of Tolerance Satellite
Reflectivity Optimization • Number of folds • Rigidity • Tear Strips • Material Selection
Deployment Sequence • Unlock Side Panels • Deploy Solar Sail
Sail Deployment • Memory Spring • Compressed Gas/Capillaries
Tracking and Communication • Corner Cube Reflectors • Laser from Ground Station • Multiple Measurements to Determine Position, Rotation, Acceleration
Presentation Outline Project Goal Background Constraints Candidate Solutions Timeline Conclusion
Conclusion • PaperSat is Developing a PicoSatellite Design for CubeSat • Design will Test Solar Sail Propulsion Technology • Design will not Incorporate Attitude Control • Position, Acceleration, and Orientation will be Measured from Ground Stations http://www.ae.utexas.edu/design/papersat/
Acknowledgements • Dr. Wallace Fowler • Dr. Cesar Ocampo • Previous CubeSat Design Groups