CDR Presentation. - Team T.E.N.’s objectives are to fly Ralph with all the systems functioning...
-
date post
15-Jan-2016 -
Category
Documents
-
view
216 -
download
0
Transcript of CDR Presentation. - Team T.E.N.’s objectives are to fly Ralph with all the systems functioning...
CDR Presentation
- Team T.E.N.’s objectives are to fly Ralph with all the systems functioning properly. This includes the boom arm, radiation badge, BASIC Stamp, HOBO, solar cells, video camera and the still shot camera
-We expect to find many things throughout the testing of our experiments and their analysis.
• Our group expects to find higher levels of radiation at higher altitudes.
• Even though we will not exceed 100,000 feet, we hope that our Aerogel sample will capture some space dust.
• There are many things running off of the BASIC Stamp, so we expect to see that our experiments were executed at the correct altitudes and the times.
• The solar cells are not our main source of power, but we are using them as a means to power our boom arm servo and the Aerogel lid, so we need full functionality of them.
Parts:• Foam Core board
• Aerogel
• Aerogel insulation
• Space blanket
• Graphite boom arm
• Pen Cam
• Micro Servo
• HOBO
• Video Camera
• ELPH Camera
• Flight cord tube
• Solar cells
• Radiation Badge
• 9V Batteries
• Heating circuit
• BASIC Stamp
HOBO
BASIC StampRadiation Badge
ELPH Camera
Heating Circuit
Video Camera
Pen Cam
Flight Cord
Servo/Boom
Power Circuit
BASIC stamp
Pen-Cam Servos Video-Cam
9V Battery Solar Panels
control
Heater
Boom Pen-Cam ELPH Cam
9V BatteryHOBO Datalogger
Internal Temp
ExternalTemp
Humidity
HOBO dataloggers25g
Graphite rod15g
Film camera150g
Solar cells44g
Hot glue, silicon glue1g
Temperature sensor5g
Digital video camera20g
Space blanket1g
2 Radiation badge, dosimeter50g
Servo motors9g
Heater30g
Cord tube20g
BASIC stamp59g
Foam core117g
Pen camera20g
Aspen Aerogel Insulation35g
Peep hole, fisheye30g
Wires10g
9 volt batter30g
Aerogel1g
Total mass of RALPH 672g
Items Price
Film $12.00
Digital video camera$60.00
2 Radiation badge, dosimeter$0.00
Pen camera$15.00
Peep hole, fisheye$5.00
Cord tube and fixtures$3.00
UV filters, 3$20.00
Carbon fiber rod$7.00
Solar Cells$40.00
Space blanket$2.00
Blank circuit board$0.10
Resistors$0.05
Zip Ties$2.00
Heavy duty Velcro $2.00
Miscellaneous, shipping$20.00
Dry Ice$10.00
Total $198.15
Date Event
10/10/06 In class, electronics, systems, science integration
10/10/06 After class meeting- power limitations, power cold test
10/12/06 Team meeting, discussion, sub-systems meeting, tests
10/13/06 Weigh-in of all components, power needs
10/17/06 CDR due
10/17/06 After class meeting, subsystems build, tests
10/19/06 After class meeting, subsystems build, tests
10/20/06 Weigh-in of all components, power needs
10/24/06 In class work, finalize systems/structure integration
10/24/06 After class meeting, subsystems build, tests
10/26/06 After class meeting, tests
10/27/06 Weigh-in, power test, systems test, finish RALPH
10/28-31/06
Test, modify if necessary, all systems and componentsDesign new test to fit RALPH’s needs, Finish construction
11/1-10/06 Test all systems, analyze, weigh in, clean components
11/12/06 tests of power and systems, install moisture control
Test Date Component Tested Testing Style
10/10/06 Main Structure Frame Drop Test, Pull, Whip, Kick test
10/12/06 Retesting of Main Structure Drop Test, Pull, Whip, Kick test
10/16/06 Retest Structure, analyze boom arm Drop/Pull, whip
10/17/06 Electronics Systems, Solar Cooler Test, Special cooler lid for solar, Power surge test
10/19/06 All Components Drop, Pull, Whip, Cooler, Kick
10/21/06 All systems Cooler, Surge, Cooler/Surge/Drop
Whip - Passed
Yank - Passed
We pretty much failed the drop test because the flight cord managed to rip through the box, even though it landed on its side?!?!
Therefore we will be increasing the surface area on the flight cord to the box to reduce the force by using a washer.
We have not conducted our cooler test yet because we have not received our Aerogel insulation yet. We will have it sometime this week and will test this weekend. However, we hope to see that the radiation badge and the pen cam work at -80 degrees C. Also, we are assuming that the tri-layer insulation of space blanket and Aerogel will keep our interior temperature above 0 degrees C.
Radiation badge – The radiation badge will survive the landing and be in good enough condition to be processed.
Boom arm – The boom arm is critical because it not only deploys the pen cam, but it also removes the lid to the Aerogel. Because the timing on the servo is controlled by the BASIC Stamp, we expect the deployment and retraction of the boom to go as expected.
Aerogel insulation – We are using Aerogel to insulate our satellite. The Aerogel is good to -200 degrees C. Therefore we expect the internal temp to stay above 0 C.
Solar Cells – After some calculations from David, we learned that the solar cells will be most affective when placed on the side of the satellite. By doing so, we hope to see that they were capable of powering the heating circuit and the boom arm servo.