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Failure Engineering Study and Accelerated Stress Test Results for the Mars Global Surveyor Spacecraft's Power Shunt AssembliesAn Engineering-of-Failure approach to designing and executing an accelerated product qualification test was performed to support a risk assessment of a "work-around" necessitated by an on-orbit failure of another piece of hardware on the Mars Global Surveyor spacecraft. The proposed work-around involved exceeding the previous qualification experience both in terms of extreme cold exposure level and in terms of demonstrated low cycle fatigue life for the power shunt assemblies. An analysis was performed to identify potential failure sites, modes and associated failure mechanisms consistent with the new use conditions. A test was then designed and executed which accelerated the failure mechanisms identified by analysis. Verification of the resulting failure mechanism concluded the effort.
Document ID
20000055584
Acquisition Source
Headquarters
Document Type
Other
Authors
Gibbel, Mark (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Larson, Timothy (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2000
Subject Category
Quality Assurance And Reliability
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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