Different insights for improving part and system reliability obtained from exactly same DFOM “failure numbersâ€

Harold Ascher

Reliability Engineering and System Safety, 2007, vol. 92, issue 5, 552-559

Abstract: Techniques for improving the reliability and maintainability of both nonrepairable and repairable items can be suggested by failure data analysis. It is shown that a given set of failure numbers leads to very different improvement strategies when the numbers are the times-between-successive-failures of one or more repairable items, rather than the times-to-failure of nonrepairable items. Since this should have been obvious more than 50 years ago, at the onset of formal reliability engineering activities, several reasons are proffered for the widespread and protracted misinterpretation of even the most basic—and simple!—conceptual and practical differences between nonrepairable and repairable items.

Keywords: Repairable systems; Maintenance strategies; Failure data analysis; Basic reliability concepts; Rate of occurrence of failures; Force of mortality; Homogeneous Poisson process; Nonhomogeneous Poisson process; Two bathtub curves (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:92:y:2007:i:5:p:552-559

DOI: 10.1016/j.ress.2006.05.003

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