Bivariate preventive maintenance of systems with lifetimes dependent on a random shock process
- 주제(키워드) Bivariate optimization , Intensity process , Maintenance , Poisson shock process , Preventive maintenace
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier B.V.
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000149734
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.ejor.2017.09.021
초록/요약
We consider a bivariate model for preventive maintenance for 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 or on a shock with the predetermined number, whichever comes first. Each shock in our stochastic model has a double effect. First, it acts directly on the failure rate of an item, which results in the corresponding stochastic intensity process, secondly, each shock causes additional ‘damage’ which can be attributed, e.g., to a short drop in the output of a system. The corresponding bivariate optimization problem is considered and illustrated by detailed numerical examples. © 2017 Elsevier B.V.
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