Project X pedition Spacecraft Senior Design – Spring 2009 .
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Transcript of Project X pedition Spacecraft Senior Design – Spring 2009 .
Project Xpedition
Spacecraft Senior Design – Spring 2009http://eng.purdue.edu/jump/25cc30
Motivation:Commercial Lunar Missions
Resupply Lunar BaseSmall Payload
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
Payloads
•100 g•10 kg•1700 kg
Mission Phases
•Earth Launch•Lunar Transfer•Lunar Descent•Locomotion 500 m
Earth Launch
110 ft
180 ft
160 ft
Dnepr - 1 Falcon - 9
Earth Launch• Site: Baikonur Cosmodrome, Kazakhstan• Cost: $4.8M
250 Mile Parking Orbit
LanderOrbital Transfer
Vehicle
880 lbs injected to Low
Earth Orbit
Solar Arrays unfold
Attitude Control
InternalView
Hall Thruster produces 80
mN of thrust
Power
CommunicationS-Band Antenna
2 Solar ArraysLithium-Ion Battery
Attitude
Chemical Thrusters
Sun SensorStar Sensor
Reaction Wheels
Lunar Transfer
•25 km parking orbit•2 hour orbital period
•Lander is self sufficient•160 kg Lander mass •Half of mass is propellant
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
Surveyor 3
Apollo 12
40km
Landing Site: Mare Cognitum
Mission Requirements Land on Moon Move Payload 500 m Take Picture
Performing system analysis
Lexan Outer Shell
Camera
CPU
Dust Removing Vibrating Motor
Battery
100g Payload
Main Axle and Motor Housing
Communications Transceiver
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
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
500m
Record Video
Mission Requirements
1. Land on Moon
2. Move 500m
3. Take Picture
4. Survive Night
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
Mission Requirements:1. Move 500 meters2. Land on moon3. Resupply base
$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
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
Question & Answer
http://eng.purdue.edu/jump/25cc30
Project Xpedition