[1] Li Jianhua, Xu Jiasheng, Ren Lina, Chen Jintao, et al. Multicomponent opportunistic maintenance modelbased on cost-effectiveness [J]. Journal of Southeast University (English Edition), 2021, 37 (4): 372-378. [doi:10.3969/j.issn.1003-7985.2021.04.005]

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Multicomponent opportunistic maintenance modelbased on cost-effectiveness()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

37

Issue:

2021 4

Page:

372-378

Research Field:

Mechanical Engineering

Publishing date:

2021-12-20

Info

Title:

Multicomponent opportunistic maintenance modelbased on cost-effectiveness

Author(s):

Li Jianhua;  Xu Jiasheng;  Ren Lina;  Chen Jintao

School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China

Keywords:

imperfect maintenance;  opportunistic maintenance;  cost-effectiveness;  reliability;  maintenance costs

PACS:

TH17

DOI:

10.3969/j.issn.1003-7985.2021.04.005

Abstract:

With difficulties in maintaining multicomponent systems of wind turbines and formulating economical and reasonable maintenance strategies, a dynamic opportunistic maintenance strategy of multicomponent systems is applied in terms of economic relevance and opportunistic maintenance among various components. A preventive maintenance model based on cost-effectiveness is proposed by incorporating cost-effectiveness analysis into the multicomponent preventive maintenance strategy. The failure rate recovery degree is used to describe the effects of imperfect maintenance and replacement. When the reliability of the component reaches the threshold of preventive or opportunistic maintenance, a reasonable maintenance method is selected on the basis of the cost-effectiveness ratio of the failure rate. A case study is conducted by taking four components of a wind turbine as the research object and comparing them with the opportunistic maintenance model without considering cost-effectiveness. Results show that the total maintenance cost is reduced by 373 600 yuan, indicating that the preventive opportunistic maintenance based on cost-effectiveness is more economical and can provide a theoretical basis for formulating a preventive maintenance plan.

References:

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Memo

Memo:

Biography: Li Jianhua(1975—), male, doctor, associate professor, li_jh@vip.sin.com.
Foundation item: The National Key Research and Development Program of China(No.2019YFB1707300).
Citation: Li Jianhua, Xu Jiasheng, Ren Lina, et al. Multicomponent opportunistic maintenance model based on cost-effectiveness[J].Journal of Southeast University(English Edition), 2021, 37(4):372-378.DOI:10.3969/j.issn.1003-7985.2021.04.005.

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