Termination versus operation extension for degrading systems
- 주제(키워드) expected profit , failure threshold , gamma process , Poison process , Termination
- 등재 SCIE, SCOPUS
- 발행기관 SAGE Publications Ltd
- 발행년도 2023
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000213521
- 본문언어 영어
- Published As https://doi.org/10.1177/1748006X221116709
초록/요약
Optimal cost-wise termination of operation for degrading engineering systems is considered that maximizes the expected profit for the infinite horizon. Termination reduces probability of the future failure that usually results in substantial loss. The cases of non-repairable and minimally repairable systems are discussed. The black-box scenario without additional information on stochastic process of degradation and that with additional information are considered. The novel sequential optimal inspection policy is described. It is proved that the termination time can be postponed in an optimal way if the degradation observed at inspection is smaller than the defined level. The developed approach allows for optimal usage of system’s “resource.” The detailed numerical examples illustrate the findings. © IMechE 2022.
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