Journal
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
Volume 266, Issue 3, Pages 1189-1197Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejor.2017.11.002
Keywords
Reliability; Random shocks; Standby system; Preventive replacement; Optimization
Funding
- National Natural Science Foundation of China [61170042]
- Jiangsu Province development and reform commission [2013-883]
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The paper considers heterogeneous 1-out-of-N warm standby systems when all components can experience internal failures and operating components are exposed to external shocks. The components' resilience to shocks decreases with the number of experienced shocks. A preventive replacement policy when the operating component is replaced after it survives a certain number of shocks is considered. A numerical algorithm for evaluating the expected mission costs and the mission success probability is suggested. An optimization problem for a replacement policy that minimizes the expected mission cost providing a desired level of a mission success probability is formulated and solved. Illustrative examples are provided. (C) 2017 Elsevier B.V. All rights reserved.
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