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Team Infinity and Beyond Final Presentation

Fall 2011 Rev D 11-29-11. Team Infinity and Beyond Final Presentation. Adam Archuleta Katie Cartee Logan Farley Patrick Klein Kamron Medina Catherine Villa. Mission Overview. Primary Objective: Prove that a glider-like vehicle is a practical way to return a payload to Earth

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Team Infinity and Beyond Final Presentation

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  1. Fall 2011 Rev D 11-29-11 Team Infinity and BeyondFinal Presentation Adam Archuleta Katie Cartee Logan Farley Patrick Klein Kamron Medina Catherine Villa

  2. Mission Overview • Primary Objective: Prove that a glider-like vehicle is a practical way to return a payload to Earth • Secondary Objective: Use a micro video camera to create a video of the high altitude environment around the BalloonSat from the point of view of the glider before, during, and after detachment

  3. Design: • Glider • Satellite • Separation Mechanism Burn wire

  4. Functional Block Diagram

  5. Hardware

  6. Results & Analysis

  7. Results and Analysis Prediction: • The glider will remain attached for exactly 70 minutes, release, and free fall towards the earth. At roughly 9 km. air resistance will begin to slow the fall of the craft, eventually creating enough lift to stabilize the vehicle • Our BalloonSat will continue to 30 km where the balloon will burst before it too free falls toward the earth. The parachute will slow the descent of the satellite after this Actual: • Satellite ascended to approximately 24 km, 6 shy of the prediction • The glider remained attached for the duration of the flight, and failed to release at the designated height • The glider survived burst and descent, but detached following a rough landing

  8. HOBO Graphs- RH Launch &Max humidity Box opened Relative humidity decreases as temperature inside increased

  9. Hobo Graphs- Internal Box opened and Heater turned off Burst Launch and minimal temperature

  10. Hobo Graphs- External Credit: Team 7 Launch Landing Burst

  11. Recap • Launch was beautiful; glider remained attached • Ascended steadily (pictures of the wing) • GPS failed 10 minutes into flight; last transmission: Greeley • Burst occurred at 68 minutes • At burst, struts had a structural failure (planned failure) • At 70 minutes, release mechanism failed (not planned for) • Fishing wire relentlessly held glider to the satellite • Glider tumbled with the satellite, pictures show 180 degree flips in 10 second windows • Last shot of glider taken one minute before landing • Satellite lands in Nebraska approximately 105 minutes after launch

  12. Failure Analysis Release Mechanism • Launch shook wire loose • Burst shook wire loose GPS • 1) Fell off of plane or • 2) Stopped transmitting- Last transmission hit nearest tower: located in Greeley Satellite • Atmospheric conditions disrupted flight • Testing • Most testing involved the burn wire mechanism • Managed to repeat failure by simulating burst • Thicker wire yields positive results, does not break as easily

  13. Conclusions • Fishing wire is a very strong, lightweight material. • Copper wire breaks easily. • Pictures from the flight are more reliable than the GPS. We discovered: Our data shows: • The GPS failed approximately 10 minutes into flight. • Cube’s internal temperature and relative humidity were optimal. • Pictures reveal glider still attached just moments before landing • Our glider is still out there. • Failures have been addressed and fixed accordingly • We still hope to test the new plane out of a hot air balloon for data. • We are ready to re-fly

  14. Appendix If we had the chance to try again: • Better time management • Test earlier • Simplify project How we would have gotten better results: • Use stronger copper wire or other kind of heating element • Replace GPS recovery system with more capable technology

  15. Re-flight requirements The rebuilt glider is ready to fly To fly again: • New GPS • New camera • Stronger copper wire Tie on glider using fishing wire, looped around copper wire. Ensure batteries are charged. Enable HOBO for planned flight time. At launch Manually activate camera. Flip all switches. Fly away.

  16. Compliance Matrix

  17. Mass and cost summary

  18. Message to Next Semester Time Simplicity • Manage it well. • Deadlines creep up. • You’ll be spending countless hours on this class. • Test early so you have more time to fix any problems you occur. • Prepare for late nights and all-nighters • Pick a simple project. • Problems occur: the simpler the system, the less time the fix takes. GOOD LUCK

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