Conducting human exploration missions beyond Low Earth Orbit (LEO) will present unique challenges in the areas of supportability and maintainability. The durations of proposed missions can be relatively long and re-supply of logistics, including maintenance and repair items, will be limited or non-existent. In addition, mass and volume constraints in the transportation system will limit the total amount of logistics that can be flown along with the crew. These constraints will require that new strategies be developed with regards to how spacecraft systems are designed and maintained. NASA is currently developing Design Reference Missions (DRMs) as an initial step in defining future human missions. These DRMs establish destinations and concepts of operation for future missions, and begin to define technology and capability requirements. Because of the unique supportability challenges, historical supportability data and models are not directly applicable for establishing requirements for beyond LEO missions. However, supportability requirements could have a major impact on the development of the DRMs. The mass, volume, and crew resources required to support the mission could all be first order drivers in the design of missions, elements, and operations. Therefore, there is a need for enhanced analysis capabilities to more accurately establish mass, volume, and time requirements for supporting beyond LEO missions.
Design and Application of the Exploration Maintainability Analysis Tool
2012
14 pages
Report
No indication
English
Unmanned Spacecraft , Manned Spacecraft , Manned space flight , Space exploration , Low earth orbits , Long duration space flight , Space missions , Computerized simulation , Monte carlo method , Component reliability , Carbon dioxide removal , Maintainability , Risk assessment , Spacecraft reliability , Systems engineering , System failures , Sensitivity analysis
DESIGN AND APPLICATION OF THE EXPLORATION MAINTAINABILITY ANALYSIS TOOL
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