Adaptive maintenance window-based opportunistic maintenance optimization considering operational reliability and cost

Yaohui Lu, Shaoping Wang, Chao Zhang, Rentong Chen, Hongyan Dui and Rui Mu

Reliability Engineering and System Safety, 2024, vol. 250, issue C

Abstract: Opportunistic maintenance (OM) reduces maintenance costs by combining the maintenance of multiple components. It has recently been widely used in complex systems. However, few studies have considered that advance maintenance results in the insufficient utilization of reliability. Besides, the applicable conditions for advance and postpone maintenance are ignored in existing literature. In this paper, the economic benefits and failure risk of advance and postpone maintenance are evaluated to fully utilize component's reliability. In addition, all maintenance types (preventive maintenance, corrective maintenance, and replacement) and programs (advance and postpone maintenance) for critical components and non-critical components are discussed based on the degree of overlap of the components’ maintenance windows. Then, an operational reliability (OR) model based on system availability is established to reflect the operating state of the system under damage and maintenance. In order to maximize OR and minimize maintenance costs, a multi-objective optimization model for an OM strategy based on adaptive maintenance window is proposed. Finally, a case study of a propeller aircraft system is conducted to verify the proposed model. It proves superior to the traditional OM and other models in terms of cost and OR.

Keywords: Adaptive maintenance window; Opportunistic maintenance; Operational reliability; Maintenance cost; Multi-objective optimization (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:250:y:2024:i:c:s0951832024003648

DOI: 10.1016/j.ress.2024.110292

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