Reliability acceptance testing for new series systems

Saul Blumenthal

Naval Research Logistics (NRL), 1992, vol. 39, issue 4, 579-597

Abstract: The mean time between failures (MTBF) of a newly minted series system, all of whose components exhibit wear, will tend to be much larger than the MTBF of the same system after it has become fully aged. When fully aged systems are used for the testing, acceptance tests with a criterion regarding the MTBF of a well‐aged system can be based on the assumption that times between system failures are independent, with identical exponential distributions. However, these tests are shown to offer essentially no consumer protection when applied to new systems. Tests are derived which are correct when new systems are under test but the acceptance criterion refers to the MTBF of a well‐aged system. The derivation uses an approximate Poisson distribution which is valid if the total number of systems on test is sufficiently large.

Date: 1992
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https://doi.org/10.1002/1520-6750(199206)39:43.0.CO;2-K

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