Degradation models and implied lifetime distributions

Suk Joo Bae, Way Kuo and Paul H. Kvam

Reliability Engineering and System Safety, 2007, vol. 92, issue 5, 601-608

Abstract: In experiments where failure times are sparse, degradation analysis is useful for the analysis of failure time distributions in reliability studies. This research investigates the link between a practitioner's selected degradation model and the resulting lifetime model. Simple additive and multiplicative models with single random effects are featured. Results show that seemingly innocuous assumptions of the degradation path create surprising restrictions on the lifetime distribution. These constraints are described in terms of failure rate and distribution classes.

Keywords: Additive model; Bathtub and increasing failure rates; Random effects; Stochastic ordering (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (17)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:92:y:2007:i:5:p:601-608

DOI: 10.1016/j.ress.2006.02.002

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