Failure risk assessment by analysis and testingThe sources of information on which to base an evaluation of reliability or failure risk of an aerospace flight system are (1) experience from tests and flights and (2) engineering analysis. It is rarely feasible to establish high reliability at high confidence by testing aerospace systems or components. Moreover, failure prediction by conventional, deterministic methods of engineering analysis can become arbitrary and subject to serious misinterpretation when uncertain or approximate information is used to establish analysis parameter values and to calibrate the accuracy of engineering models. The limitations of testing to evaluate failure risk are discussed, and a statistical approach which incorporates both engineering analysis and testing is presented.
Document ID
19920066350
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Moore, N. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ebbeler, D. (JPL Pasadena, CA, United States)
Creager, M. (Structural Integrity Engineering Chatsworth, CA, United States)