期刊
IEEE ACCESS
卷 7, 期 -, 页码 62759-62768出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2019.2916624
关键词
Imperfect maintenance; multi-state systems; selective maintenance; system health state
资金
- National Social Science Foundation of China [16ZDA047]
- National Natural Science Foundation of China [71801135, 71501161, 71401136]
- Natural Science Foundation of Jiangsu Province [BK20180792]
- University Natural Science Research Foundation of Jiangsu Province [18KJB580011]
- Startup Foundation for Introducing Talent of NUIST [2017r061]
- Sichuan Social Science Planning Project [SC17B088]
Motivated by the need to reduce the maintenance cost and improve the system reliability, the issue of selective maintenance has attracted much attention in the industrial and military fields. The existing research mainly focused on binary-state systems or the perfect maintenance strategy. In this paper, we presented a novel selective maintenance model for multi-state deteriorating systems with multi-state components considering imperfect maintenance strategy. The proposed model aims to minimize the total maintenance costs and takes the relationship between the maintenance cost, the system service life and the maintenance quality into account. A case study where the proposed model was applied to an aircraft gas turbine engine system was conducted. The sensitivity analyses for the minimum requirement of the health level, the aging factor, and the number of health states were conducted, respectively. Moreover, a comparative analysis between perfect and imperfect maintenance strategies was conducted, and the results demonstrated that the imperfect maintenance strategy was more cost-effective than perfect maintenance strategy. The findings of this study can guide the maintenance decision-making process for actual systems.
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