Reliability modeling for multi-component system subject to dependent competing failure processes with phase-type distribution considering multiple shock sources

In this article, a reliability model for the multi-component system subject to dependent competing failure processes considering multiple shock sources is presented. For a single component, soft failure occurs when the sum of natural degradation and instantaneous degradation increment is greater tha...

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Bibliographic Details
Published inQuality engineering Vol. 35; no. 1; pp. 95 - 109
Main Authors Lyu, Hao, Wang, Shuai, Yang, Zaiyou, Qu, Hongchen, Ma, Li
Format Journal Article
LanguageEnglish
Published Milwaukee Taylor & Francis 02.01.2023
Taylor & Francis Ltd
Subjects
Component reliability
Degradation
dependent competing failure processes
Failure
phase-type distribution
Reliability analysis
reliability model
shocks
survival function
System reliability
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Summary:In this article, a reliability model for the multi-component system subject to dependent competing failure processes considering multiple shock sources is presented. For a single component, soft failure occurs when the sum of natural degradation and instantaneous degradation increment is greater than the soft failure threshold. The soft failure reliability model is established using the degradation-threshold interference model. The hard failure model is developed using the phase-type distribution survival function. Then, system reliability is derived based on the history of shocks from all shock sources. Finally, the reliability model is demonstrated by a numerical example.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0898-2112
1532-4222
DOI:10.1080/08982112.2022.2098043