On preventive maintenance of systems with lifetimes dependent on a random shock process
- 주제(키워드) Age replacement , Intensity process , Poisson process , Preventive maintenace , Shock process
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2017
- URI http://www.dcollection.net/handler/ewha/000000146892
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.ress.2017.03.023
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
We consider preventive maintenance (age replacement) of items operating in a random environment modeled by a Poisson process of shocks. An item is replaced either on failure or on the predetermined replacement time, whichever comes first. Each shock in our stochastic model has a double effect. On one hand, it acts directly on the failure rate of an item, which results in the corresponding stochastic failure rate process. On the other hand, each shock causes additional ‘damage’, which can be attributed, e.g., to a short drop in the output of an item. The corresponding optimization problem is considered and illustrated by detailed numerical examples. © 2017 Elsevier Ltd
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