Project X pedition Spacecraft Senior Design – Spring 2009 .
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Transcript of Project X pedition Spacecraft Senior Design – Spring 2009 .
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Project Xpedition
Spacecraft Senior Design – Spring 2009http://eng.purdue.edu/jump/25cc30
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Motivation:Commercial Lunar Missions
Resupply Lunar BaseSmall Payload
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Project Xpedition Requirements
•Land on the Moon
•Move 500 meters
•Transmit HD pictures and video to Earth
•Survive the Lunar Night
•Minimize cost with 90% reliability
Project Xpedition
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Payloads
•100 g•10 kg•1700 kg
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Mission Phases
•Earth Launch•Lunar Transfer•Lunar Descent•Locomotion 500 m
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Earth Launch
110 ft
180 ft
160 ft
Dnepr - 1 Falcon - 9
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Earth Launch• Site: Baikonur Cosmodrome, Kazakhstan• Cost: $4.8M
250 Mile Parking Orbit
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LanderOrbital Transfer
Vehicle
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880 lbs injected to Low
Earth Orbit
Solar Arrays unfold
Attitude Control
InternalView
Hall Thruster produces 80
mN of thrust
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Power
CommunicationS-Band Antenna
2 Solar ArraysLithium-Ion Battery
Attitude
Chemical Thrusters
Sun SensorStar Sensor
Reaction Wheels
Lunar Transfer
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•25 km parking orbit•2 hour orbital period
•Lander is self sufficient•160 kg Lander mass •Half of mass is propellant
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Space Balls Housing
Communication Antenna and Motor
Solar Panel
Attitude Control Thrusters
RadiatorAttitude Sensors
CPU
H2O2 Tank
Helium Tank
Radial Flow Hybrid Engine
3 ft.
Camera
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Surveyor 3
Apollo 12
40km
Landing Site: Mare Cognitum
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Mission Requirements Land on Moon Move Payload 500 m Take Picture
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Performing system analysis
Lexan Outer Shell
Camera
CPU
Dust Removing Vibrating Motor
Battery
100g Payload
Main Axle and Motor Housing
Communications Transceiver
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Mission Requirements
1. Land on Moon
2. Move 500m
3. Take PictureTaking Photo of LanderRemoving Dust
All Systems Are GO!Avoiding Obstacle
Cruise Speed: 3.2 mphMinimum Turning Radius: 2.5 in
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10 kg Lunar Lander
230 lbs Lander270 lbs Propellant500 lbs Total
Mission Requirements
1. Land on Moon
2. Move 500m
3. Take Picture
4. Survive Night
Hop Engine
Thrust: 45 lbsBurn Time: 135 sec10 kg Payload
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500m
Record Video
Mission Requirements
1. Land on Moon
2. Move 500m
3. Take Picture
4. Survive Night
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Completed lunar descent• Full stop• Begin locomotion
Attitude Thrusters
16 ft
6 ft
300 ft
Main EngineAvg. Thrust: 230 lbsBurn time: 60 s
Large Payload
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Mission Requirements:1. Move 500 meters2. Land on moon3. Resupply base
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$27MCost
- $22M Purse
= $5MNet Mission Cost
100 g 10 kg 1743 kg0
50
100
150
200
250
$27 Million72% success
$30 Million72% success
$223 Million
Mission Cost, $M in 2009 DollarsCost Per Kilogram ($M)
Mission Cost
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Recommendations:
1. Balance reliability and cost2. Electric Propulsion for Lunar transfer3. Soft land on Lunar surface
Google Lunar X PRIZE:
1. $27M mission accomplished for $5M2. Many viable locomotion methods3. Potential to open commercial market
Results
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Question & Answer
http://eng.purdue.edu/jump/25cc30
Project Xpedition