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Kate Mitchell Week 8*: March 1 st , 2007. Human Factors – Group Lead HAB & TV Vehicle Groups This Week: TV and HAB Crew Cab Totals, TV Total IMLEO & IVLEO. *Presented during Week 7. New Totals for TV & HAB. Totals for each TV Crew Cab. Totals for each HAB Crew Cab.
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Kate MitchellWeek 8*: March 1st, 2007 Human Factors – Group Lead HAB & TV Vehicle Groups This Week: TV and HAB Crew Cab Totals, TV Total IMLEO & IVLEO *Presented during Week 7 Kate Mitchell - 1
New Totals for TV & HAB Totals for each TV Crew Cab Totals for each HAB Crew Cab Totals for each TV Re-supply (x5) TV Crew Cab [Fox] HAB Crew Cab [Fox] *Total masses for HAB and TV include all human needs (structure not included). Kate Mitchell - 2
TV: IMLEO & IVLEO • TV values include the following: • Crew Cab • Truss • Power System • Comm. System • Thermal Control System • D&C System (for spin-up) TV Total IMLEO & IVLEO TV 1 TV 2 TV 3 TV 4 Kate Mitchell - 3
Back-up Slides Kate Mitchell - 4
Totals Breakdown TV Crew Cab HAB Crew Cab Kate Mitchell - 5
Totals Breakdown Example of TV Total Mass Calculation – TV 1*** *Volume of the Human Factors Systems is encompassed by the structures volume **Total values for the propulsion systems can be found in the files for the dE, aM, dM, aE and EP data-sharing pages ***Calculations for the total mass of each transfer vehicle for each mission are attached Kate Mitchell - 6
Full Gas Pressure Suits Advantages Proven technology Various designs/sizes Disadvantages Heavy and bulky Difficult to donn/doff Pre-breathe necessary Full suit pressurization Lack of mobility, flexibility, dexterity Loss of oxygen if suit is damaged High metabolic requirement MCP Suits (“Bio-Suit”) [3] Advantages Lightweight Minimal metabolic cost Improved mobility, flexibility, dexterity Disadvantages Untested technology Difficult to donn/doff Areas of concavity Spacesuit Comparison Kate Mitchell - 7
Spacesuit Design Chosen Mechanical Counter Pressure Suits (“Bio-Suit”) • Overall, the Bio-Suit was found to be a better suit for exploration *Photos taken from “EVA Research at MVL” website[3] Kate Mitchell - 8
References [1] Hanford, Anthony J., ed. NASA Johnson Space Center. Advanced Life Support Baseline Values and Assumptions Document. Aug. 2004. http://ston.jsc.nasa.gov/collections/TRS/_techrep/CR-2004-208941.pdf [2] Landau, Dr. Damon F., “Strategies for the Sustained Human Exploration of Mars.” Thesis Submitted to the Faculty of Purdue University, Dec. 2006. [3] Newman, Dava. Extravehicular Activity Research at MIT Man Vehicle Laboratory: Bio-Suit Overview, 2005. http://mvl.mit.edu/EVA/biosuit/index.html [4] Reed, Ronald D., and Gary R. Coulter. "Physiology of Spaceflight." Human Spaceflight: Mission Analysis and Design. Ed. Wiley J. Larson and Linda K. Prank. New York: McGraw-Hill, 1999. 113-115. [5] Stilwell, Don, Ramzy Boutros, and Janis H. Connolly. "Crew Accommodations." Human Spaceflight: Mission Analysis and Design. Ed. Wiley J. Larson and Linda K. Prank. New York: McGraw-Hill, 1999. 575-606. Kate Mitchell - 9