Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 167, Issue -, Pages 67-74Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2017.05.027
Keywords
Load-sharing system; Multi-component systems; Failure interaction; Age replacement; Imperfect repair; Maintenance policy optimization; Hoisting problem
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This paper presents a two-component load-sharing system. The failure rates of the two components are time dependent and load dependent. Whenever one fails, it is imperfectly repaired with a time delay during which the failure rate of the survival component increases because of the resulting overload. Three maintenance policies are proposed considering imperfect preventive maintenance and system replacement. The optimal average costs in the long run under different maintenance policies are derived from the theoretical propositions. Sensitivity analyses through numerical examples are carried out. (C) 2017 Elsevier Ltd. All rights reserved.
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