 Reliability and maintenance analysis of coherent systems subject to aging and environmental shocksMahdi Tavangar and Marzieh Hashemi Reliability Engineering and System Safety, 2022, vol. 218, issue PB Abstract: In reliability engineering, each component of the system, in addition to internal failures, is usually subject to lethal external shocks. Usually, the random shocks are produced by a random environment, and modeled by a stochastic process. In this paper, using the theory of signature and survival signature depending on whether the components of the system are of one type or several types, a general approach in assessing the system reliability is presented. We also propose some preventive maintenance strategies for a multi-component system whose components are subject to both internal failures and fatal shocks. In each policy, based on the maintenance costs of the system and its components, a cost function is computed as a criterion to be optimized. The signature-based representation of the system reliability is especially useful to maintain the system in optimal conditions by considering the component repair costs. To illustrate the theoretical results, extensive graphical and numerical examples are presented. Keywords: Reliability; Preventive maintenance; Aging; Lethal shock; Signature; Survival signature (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:218:y:2022:i:pb:s0951832021006542 DOI: 10.1016/j.ress.2021.108170 Access Statistics for this article Reliability Engineering and System Safety is currently edited by Carlos Guedes Soares More articles in Reliability Engineering and System Safety from Elsevier |
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