TEAM INFINITY AND BEYOND FINAL PRESENTATION Fall 2011 Rev D 11-29-11 Adam Archuleta Katie Cartee Logan Farley Patrick Klein Kamron Medina Catherine Villa
Feb 23, 2016
TEAM INFINITY AND BEYONDFINAL PRESENTATION
Fall 2011 Rev D
11-29-11
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
• 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
DESIGN:
• Glider
• Satellite
• Separation Mechanism
Burn wire
External Temperature
Internal Temperature
Relative Humidity
Glider
BalloonSat
Internal Power Video Camera SD Card
Internal Power GPS Tracker
9v Batteries Switch 1 Arduino
Uno Mosfet Burn Wire
9v Batteries Switch 2 Heater
Internal Power HOBO Sensors
Internal Power
Camera Switch
Internal Timer Camera SD Card
Functional Block Diagram
HARDWARE
RESULTS & ANALYSIS
RESULTS AND ANALYSISPrediction:
• 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
HOBO GRAPHS- RHLaunch & Max humidity
Relative humidity decreases as temperature inside increased
Box opened
HOBO GRAPHS- INTERNAL
Launch and minimal temperature
Burst
Box opened andHeater turned off
HOBO GRAPHS- EXTERNAL Credit: Team 7
Burst
Launch
Landing
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
FAILURE ANALYSISRelease 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
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:
• 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 data shows:
• 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
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
Appendix
RE-FLIGHT REQUIREMENTS
The rebuilt glider is ready to fly
• New GPS• New camera• Stronger copper wire
To fly again:
1. Tie on glider using fishing wire, looped around copper wire.
2. Ensure batteries are charged.3. Enable HOBO for planned flight time.
At launch4. Manually activate camera.5. Flip all switches.6. Fly away.
Compliance MatrixRequirement Process
Transport glider equipped with GPS technology to near-space conditions at approximately 26km Built each component, tested extensively, Got approval from the FAA
Incorporate a burn wire release mechanism into our satellite Designed mechanism, installed and tested
Keep total weight under 850 grams Slightly overweight, acquired the needed difference from another team
Keep total cost under $250 Stuck to our pre-determined budget, and contributed personal funds as needed
Recover GPS enabled Glider Used a team car to follow the path of the glider
Design and construct BalloonSat that will reach 26-30km Structure testing
Design and construct glider that will survive the ascent of the satellite through the atmosphere Structure and release mechanism tests
Ensure the glider will support the weight of a cell phone and camera Multiple test flights and design changes
Set up a connection between the glider and ground Used Sprint's Family Locater plan
Construction and testing completed and turned in by Friday, November 4th Completed and turned in Install burn wire and electrical required for the release in our BalloonSat
Tested in place of the magnet and found that it was more reliable; used the same system as we had set up for the magnet
Install fishing line onto glider Used a thin piece of copper wire and wrapped the fishiing line around it.Install and test a timer to release the glider from the Satellite at a specific altitude
Calculated velocity of ascent based on previous BalloonSat experiments; programmed arduino accordingly
Test integrated system before launchProgrammed arduino to release at 20 seconds; test results indicate the system is working as designed.
Research weights of all materials Used the ITLL scale
Check the accuracy of the aforementioned research Measured individual parts when they arrivedMeasure final design to ensure weight is under 850 grams
Following our final weigh-in, we were overbudget by a small amount. We negotiated for weight with another team
Research costs of all materials Google
Caculate total cost Created and used a detailed budget
Locate the glider on Google Maps Use Sprint Family Locator program
MASS AND COST SUMMARYComponent Qty. Cost Mass (g) Source Company Contact Part NumberBalloonSatHOBO H08-004-02 1 Provided 35.6 GatewayCanon SD780 IS 1 Provided 119.7 GatewayHeater 1 Provided 31.9 GatewayLithium 9V batteries 12 $6* 32.9 (x5) Home Depot 1-800-466-3337 #LA522SPBArduino UNO 1 $29.95 25.9 Sparkfun 1-303-284-0979 #DEV-09950MOSFET Power Control Kit1 $6.11* 8 Sparkfun 1-303-284-0979 #COM-10256Micro SD Shield 1 $17.56* 1.1 Sparkfun 1-303-284-0979 #DEV-098021B Glass Camera Filter 1 $16.46 8.6 Camerafilters.com M&K Optics LLC
12725 Country Hollow Rd.Oklahoma City, OK 73142
#HE2b
Tubular Electromagnet 1 $35.89 31 Electromechanicsonline.com818-785-6244 #ELMATU021020 Washer 2 Provided 12.4 (x2) GatewayPlastic Tube 1 Provided 10.8 GatewayFlag Sticker 2 Provided 1.6 GatewayOther Stickers 4 Provided 1.4 Gateway12cm Foam Core Cube 1 Provided 77 GatewayInsulation Provided 25.8 GatewayGliderLG Dare cell phone 1 Donated (worth $95)106 Patrick KleinFoam core structure 1 Provided 196 GatewayGlider Video Camera 1 $53.68 19.6 Ebay Enjoy Secret
Address: N/A#110729469400
SportsCamOne 1 $136 36 Action Hobbies Center 303-233-6275 #HLI2200Insulation Provided 5 GatewayTesting12V Alkaline Batteries Pack of 20 $9.89 7.5 Amazon.com 718-782-2242 #B004SK9P0ODry Ice and Cooler 11 lbs. $1.97*/ lb N/A King SoopersTotal Estimated $141.58 834.9 gTotal Actual (SpaceGrant) $250.00 880 g *Spent out-of-pocket $407.71
MESSAGE TO NEXT SEMESTER
Time• 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
GOOD LUCK
Simplicity• Pick a simple project.• Problems occur: the simpler the
system, the less time the fix takes.