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ERV Team 2 Final Report

ERV Team 2 Final Report. Alicia Cole-Quigley James Gilson Erin Hammond Domenic Marcello Matt Miller Jeff Rosenberger. ERV Team 2 Final Report. Alicia Cole-Quigley James Gilson Erin Hammond Domenic Marcello Matt Miller Jeff Rosenberger. Mission Overview.

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ERV Team 2 Final Report

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  1. ERV Team 2 Final Report Alicia Cole-Quigley James Gilson Erin Hammond Domenic Marcello Matt Miller Jeff Rosenberger

  2. ERV Team 2 Final Report Alicia Cole-Quigley James Gilson Erin Hammond Domenic Marcello Matt Miller Jeff Rosenberger

  3. Mission Overview • Send uncrewed Earth Return Vehicle (ERV) and In-Situ Resource Utilization (ISRU) Plant to Mars • 26 months later, send crewed transport with 4 crewmembers and supplies • Crew spends 550 days on Martian surface and conducts scientific experiments • Crew returns to Earth in ERV

  4. Primary Objective • The safe transport and return of the human crew for the duration of the defined mission. http://floridalawfirm.com/mars.jpg

  5. the investigation of extended duration human spaceflight the efficient conversion of Martian atmosphere and resources to support mission objectives the investigation of psychological effects of such a mission on the crew successful return of experimental data regarding Mars and prolonged human exposure to low gravity the promotion of global unity through exploration of the solar system and beyond the ability to provide extra resources (10% more propellant than needed) for a Mars Rover Secondary Objectives

  6. Launch Vehicle Interface • Inline core vehicle with two attached Shuttle boosters • Payload is aft mounted on expendable core vehicle • One-third launch costs of Titan IV with 5x the payload capability http://www.space.com/images/h_magnum_03.jpg

  7. Navigation/Attitude Control • 4 Control Moment Gyros (CMGs) • Cold gas thrusters as failsafe for CMGs • 3 Ball CT-633 Stellar Attitude Sensors • 2 TNO Sun Acquisition Sensors • 6 Honeywell QA3000 Accelerometers http://centauri.larc.nasa.gov/issvc97/cmg.gif

  8. Propulsion • 3 RD-192 Methane Engines • Liquid Methane/Liquid Oxygen • Designed by Glushko • Produces 2138 kN of thrust • Isp of 356s • Gimbaling capability ± 8° in 2 planes

  9. Structure • “Banana split” configuration • 3 floors • Private areas • Scientific experiments • Common areas http://spaceflight.nasa.gov/gallery/images/mars/marsbases/lores/s97_07837.jpg

  10. Crew Accommodations &Human Factors • Crew composition: 2 male, 2 female • More private space than currently on ISS • Rear entry “climb in” EVA suits • ISS Fire Detection System • Solid Amine CO2 scrubbers

  11. Command, Control, & Communications • MOCC, SOCC, and POCC at NASA Johnson Space Center in Houston, Texas • 2 LM RAD-6000 computers • 2-way sound, video, text, and data capability • Low-gain antenna just after launch and into LEO • High-gain antenna using Deep Space Network for mission duration

  12. Entry/Descent - Mars • Orbital maneuvering system (OMS) and aerobraking for entry into Martian orbit • Establish stable orbit • Fire retrorockets to descend • Combination parachute and retrorocket for landing

  13. Landing Site on Mars • Daedalia Planum • Consists of old lava flows • 25° South latitude; 127.5° West longitude • Good location in terms of both wind and solar power

  14. Entry/Descent/Landing - Earth • OMS and aerobraking to enter low Earth orbit • Establish stability in LEO • Await taxi to return crew to Earth’s surface

  15. Thermal Protection • Inconel 617 • Density of 8.36 g/cm3 • Doubles as structural shell • Used and tested on X-33 • Panels are easy to repair or replace

  16. Power • SP100 Nuclear Reactor • Wind turbines (Lakota SC) • Exercise equipment • ISRU Technologies • Sabatier Process • Reverse Water Gas Shift • Electrolysis http://www.truenorthpower.com/products_turbines.htm

  17. Finish sensor trade study Continue research on RD-192 Develop appropriate radiation shielding system for ERV Investigate reentry dynamics Study high energy transfer orbits Calculate crew food, water, and fresh air requirements Research Inconel manufacturing Detailed numerical analysis of power subsystem Landing “Banana Split” Future Work

  18. Any questions?

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