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Manifest Destiny

Manifest Destiny. Michael Pierce Jacob Hollister Jack Reagan Alex Herring Andrew Nguyen Sarah Atkinson Chris Roach. AERO 426 – Fall 2012 Texas A&M University October 23,2012. Overview. Mission Guidelines Functional Requirements Design Concept Introduction Trade Tree Overview

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Manifest Destiny

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  1. Manifest Destiny Michael Pierce Jacob Hollister Jack Reagan Alex Herring Andrew Nguyen Sarah Atkinson Chris Roach AERO 426 – Fall 2012 Texas A&M University October 23,2012

  2. Overview • Mission Guidelines • Functional Requirements • Design Concept • Introduction • Trade Tree • Overview • Structures Trade Tree • Power System Trade Tree • Propulsion Trade Tree • Mass Estimates • Floor Space and Volume • Power System • Propulsion • Food Source Comparison • Life Support • Design Advantages

  3. Mission Guidelines • Mission Requirements: • Assume 12 crew members and trip times > 24 months. • Minimum resupply from Earth • A space-only craft (no atmospheric flight or re-entry) • All technologies must be credible based on current capabilities and trends; no “miracle cures” Mission Statement: Our mission is to expand the domain of humanity beyond the Earth for the betterment, preservation, and advancement of all humankind by creating a mobile habitat capable of long-duration, exploratory voyages while ensuring the physical and psychological well-being of its inhabitants.

  4. Design Concept Introduction Our philosophy: make it affordable, make it buildable, and make it a reality

  5. Design Concept Trade Tree

  6. Design Concept Manifest Destiny

  7. Design Concept Peas in a Pod

  8. Design Concept Payload

  9. Design Concept Payload

  10. Design Concept

  11. Design Concept

  12. Launch Cost Analysis

  13. Structures Trade Tree

  14. Power System Trade Tree

  15. Propulsion Trade Tree

  16. Bringing vs. Growing Trade Tree

  17. Mass Estimates • Mass Estimates • Pods (4) = 114,000 kg • Solar Panels = 88,900 kg • Truss= 96,000 kg • Engine/Rockets = 3,150 kg • Radiation Shielding = 220,000 kg • Fuel at Launch (assuming refuel at L1 point)= 90,000 kg • Food = 15,100 kg • Water = 66,400 kg • Total Mass • 767,000 kg (Including 10% margin)

  18. Floor Space and Volume • Floor Space Estimates • 1 Floor • Floor Height = 3 m • Total Area per Pod = 113.59 m2 • Total Floor Area = 454.38 m2 • Volume Estimate • Total Volume per pod = 441.52 m3 • Total Volume = 1766.11 m3

  19. Power System (1/2) • Power Required • Solar panels need to generate at least 110 kW to match ISS • Power used for propulsion, homeostasis, and experiments • Power Storage • Lithium-Ion batteries store twice the specific energy of Nickel-Hydrogen batteries (used in the ISS) • Batteries used for “eclipse” times when there is no readily available sunlight

  20. Power System (2/2) Solar PowerArray Design • Array comprised of four separate dual-sided panels arranged in the plane of the trusses • Approximately 20,000 available for arrays • Minimum of 4000 required for solar arrays • Each panel is able to rotate independently about an individual truss to receive maximum sunlight Maximum Configuration Nominal Configuration

  21. Merlin Vacuum 1C chosen Vacuum Thrust: 569kN Vacuum Isp: 304s Proposed configuration: One Merlin Vacuum 1C in center of spacecraft for translational maneuvers One Merlin Vacuum 1C on each pod, mounted with ability to gimbal within plane of mounting Allows for maneuvering redundancy in case of engine failure Allows for main engine assistance with translational maneuvers, if necessary Allows for establishment of artificial gravity for spacecraft simultaneously Propulsion 21 References: http://www.spacelaunchreport.com/falcon9.html, http://www.spacex.com/falcon1.php#merlin_engine

  22. Bringing Food The space shuttle carries about 3.8 pounds of food, including 1 pound of packaging, per astronaut for each day of the mission The astronauts get three meals a day, plus snacks Assuming 12 astronauts, 2 years: 15,100 kg

  23. Life Support (1/2) • Design goal: To utilize flight tested hardware for maximum reliability

  24. Life Support (2/2) • The majority of life support functions are currently utilized on the International Space Station High density Polyethylene radiation shield - Total mass: 220,000 kg Atmosphere provided 14.7 psi, ~21% O2, 79% N2 Water electrolysis to produce oxygen Recyclable METOX canisters provide air scrubbing Multi-layer insulation and ammonia system featuring heat exchangers to provide thermal control Humidity control via condenser/heat exchanger and rotary water separator Highly efficient ECLSS water recycling system Design capable of multiple redundancies for critical life support systems

  25. Manifest Destiny Advantages All technologies proposed have already been successfully used in space Components can be easily assembled in LEO Structure allows for comfort of astronauts while being as small a system as is possible Propulsion system allows for different modes of operation and accounts for possible engine failure Redundancies exist in life support system to account for component failure

  26. Questions? Contractor 3 would like to thank all reviewers for their time and will now open the floor for questions

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