NTRS - NASA Technical Reports Server
Reliability Demonstration Approach for Advanced Stirling Radioisotope GeneratorDeveloped for future space missions as a high-efficiency power system, the Advanced Stirling Radioisotope Generator (ASRG) has a design life requirement of 14 yr in space following a potential storage of 3 yr after fueling. In general, the demonstration of long-life dynamic systems remains difficult in part due to the perception that the wearout of moving parts cannot be minimized, and associated failures are unpredictable. This paper shows a combination of systematic analytical methods, extensive experience gained from technology development, and well-planned tests can be used to ensure a high level reliability of ASRG. With this approach, all potential risks from each life phase of the system are evaluated and the mitigation adequately addressed. This paper also provides a summary of important test results obtained to date for ASRG and the planned effort for system-level extended operation.
Ha, CHuong (Lockheed Martin Space Systems Co. Sunnyvale, CA, United States) Zampino, Edward (NASA Glenn Research Center Cleveland, OH, United States) Penswick, Barry (SunPower, Inc. Athens, OH, United States) Spronz, Michael (Sest, Inc. Cleveland, OH, United States)
August 25, 2013
July 25, 2010
Spacecraft Propulsion And Power
WBS: WBS 138484,95,92,94,94
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