Joint optimization of redundancy level and spare part inventories
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- 作者：Andrei Sleptchenkoa ; andrei.sleptchenko@qu.edu.qa" class="auth_mail" title="E-mail the corresponding author ; Matthieu van der Heijdenb ; m.c.vanderheijden@utwente.nl" class="auth_mail" title="E-mail the corresponding author
- 关键词：Maintenance ; Spare parts ; k-out-of-N systems ; Availability
- 刊名：Reliability Engineering & System Safety
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：153
- 期：Complete
- 页码：64-74
- 全文大小：969 K
文摘
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We analyze a redundant system (k-out-of-N) with multiple parts and spares.
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We jointly optimize the redundancy level and the spare part inventories.
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We develop an exact method and an approximation to evaluate the system availability.
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Adding spare parts and reducing the redundancy level cuts cost by 50% in a case study.
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The availability is not very sensitive to the shape of the failure time distribution.