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LETS Phase 3 Review 4/29/08. Agenda Team Introduction Daedalus Concept Concept of Operations Subsystem Overview Daedalus Performance Daedalus Vision Public.

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Presentation on theme: "LETS Phase 3 Review 4/29/08. Agenda Team Introduction Daedalus Concept Concept of Operations Subsystem Overview Daedalus Performance Daedalus Vision Public."— Presentation transcript:

1 LETS Phase 3 Review 4/29/08

2 Agenda Team Introduction Daedalus Concept Concept of Operations Subsystem Overview Daedalus Performance Daedalus Vision Public Outreach Questions

3 Team LunaTech Nick Case, Project Manager Morris Morell, Systems Engineer Travis Morris, GN&C Greg Barnett, Thermal Systems Adam Garnick, Power Systems Katherine Tyler, Power Systems Tommy Stewart, Structures and Mechanisms Julius Richardson, Conops John Grose, Payload and Communications Adam Fanning, Communications Eric Brown, Technical Editor

4 Partners Mobility Concepts –Southern University Robert Danso McArthur Whitmore Sample Return Vehicle Design –ESTACA Julie Monszajin Sebastien Bouvet

5 CDD Requirements Landed Mass kg 1 st mission landing site is polar region Design must be capable of landing at other lunar locations Minimize cost across design Launch Date NLT September 30 th 2012 Mobility is required to meet objectives Survivability ≥ 1 year Lander/Rover must survive conops. The mission shall be capable of meeting both SMD and ESMD objectives. The lander must land to a precision of ± 100m 3 sigma of the predicted location. The lander must be capable of landing at a slope of 12 degrees (slope between highest elevated leg of landing gear and lowest elevated leg) The lander shall be designed for g-loads during lunar landing not to exceed the worst case design loads for any other phase of the mission (launch to terminal descent).

6 Daedalus Lander 1.The Need 2.The Mission 3.The Solution

7 Daedalus Lander Simple, Adaptable, Autonomous Lander Solar Cell and Li-Ion Battery Power Semi-passive Thermal System Ka-Band and UHF Communications System Lunar Penetrator Exploration System (LPES) “Fire and Forget”

8 Daedalus Heritage Structure based on Viking Lander Communication based on MER Power System based on Mars Phoenix & Venus Express DSMAC Technology for GN&C based on Cruise Missile

9 Daedalus Mass Statement

10 Concept of Operations

11 LPES Payload Micro-Seismometers Impact Accelerometer and Tilt Sensors Heat Flow Probe Geochemistry Package Water/Volatiles Detector Design Requirements Year Lifetime Impact Velocity: ~350 m/s Impact Force: ~4500 G’s Impact Depth: 1~2 m Scatter Distance: 500 m Penetration Web ESTIMATED PENETRATOR SIZE Length: 480mm to 600mm Diameter: 60mm Estimated Mass: 14kg LPES 22 Penetrators 16 Launched into Shackleton Crater 6 Launched into Lighted Region Spring-Loaded Ejection System

12 Daedalus Science Basic Requirements for Single Site Science Box: Determine Lighting conditions every 2 hours over the course of one year Study Micrometeorite flux Observe Electrostatic dust levitation and its correlation with lighting conditions

13 Daedalus Power Lithium Ion Batteries –Total of 9 Sony 1860HC –Total mass of kg –Total Volume of ft^3 Solar Cells –Total of 3 Gallium Arsenide Panels –Total mass of 46 kg –Total Surface area of ft^3 –Total Power of 937 Watts Power Regulation and Control –6 Auxiliary Power Regulators. 2 per Solar Cell –1 Battery Charge/Discharge Regulator per battery –ON Semiconductor LM350 Positive Voltage Regulators –STM Microelectronix ST0269 Digital Signal/Microprocessor –Crydom CMX60D10 Solid State Relays

14 Daedalus Thermal Passive Systems Paints- White and Black MLI Blankets –15 Layers, Betacloth, Aluminized Kapton Thermal Switches –Diaphragm Thin Plate Switch High Conductance Cold Plate Active Systems Solid-State Controlled Heaters Variable Radioisotope Heater Units –50 Units Provide about 50 W of Heat Variable Conductance Heat Pipes –Aluminum with Ammonia Working Fluid

15 GN&C Provides Completely Autonomous Landing sequence Very Precise landing location Landing location determined before launch Hazard Avoidance Objective: To deliver Daedalus from 5km altitude safely and accurately to the lunar surface

16 Daedalus Communications Earth Receiver and Transmitter Lunar Penetrators LRO Penetrators to LRO using UHF Data Rate: 2 Kbps LRO to Earth using Ka-band Data Rate: 100 Mbps Daedalus to LRO using Ka-Band Data Rate: 100 Mbps View Time: 1 Hour per Day (approx) Daedalus

17 Daedalus Structures To simulate loads experienced at landing a 8200 Newton load was applied to the foot of the leg assembly. These loads were then transferred to the chassis Results indicate the minimum Factor of Safety is 1.15

18 Daedalus Structures To simulate loads experienced at takeoff a Newton load was applied to the payload adapter ring Results indicate the minimum Factor of Safety is 1.3

19 Daedalus Performance Figures of MeritGoalDaedalus Number of surface objectives accomplished 15 Samples in permanent dark and 5 samples in lighted terrain 16 Samples in permanent dark and 7 samples in lighted terrain Percentage of mass allocated to payload Higher is better40% of Dry Mass Ratio of objectives (SMD to ESMD) validation 2 to to 1 Efficiency of getting data in stakeholders hands vs. capability of mission Higher is better83.5 % Percentage of mass allocated to power system Lower is better14% of Dry Mass Ratio of off-the-shelf hardware to new development hardware Higher is better1.67 to 1

20 Daedalus Vision Mariner 7 & 9 Viking 1 & 2 Mars Global Surveyor Mars Pathfinder 2001 Mars Odyssey Mars Express Orbiter Mars Exploration Rovers Mars Reconnaissance Orbiter Mars Phoenix Lander Mars Science Laboratory Present Mars Exploration Roadmap

21 Daedalus Vision Proposed LPRP Timeline Using Daedalus LCS (2011) LCROSS (2008) LRO (2008) Daedalus I (2012) Daedalus II (2014)

22 Daedalus Vision Daedalus I Mission to Shackleton Crater Lunar South Pole Reconnaissance achieved by LPES Single Site Science Conducted Daedalus II Return Mission to Shackleton Crater Further Investigation based on LPES findings Robotic Rover and Sample Return Vehicle Capability

23 Daedalus Vision Provide a basic, yet powerful and adaptable Lunar Exploration Transportation System Build upon the design practices and valuable data collected Evolve the Daedalus to accomplish each mission Provide a Low-Cost Solution for LPRP This is the Vision for Daedalus…. and the Mission of LunaTech

24 Public Outreach Union Hill School May 8, th Grade Presentation about the Moon, LPRP and Daedalus Launch a Model Rocket

25 Questions

26 Thermal Backup 1

27 Thermal Backup 2

28 Thermal Backup 3

29 Thermal Backup 4

30 Thermal Backup 5

31 Thermal Backup 6


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