Optimization of preventive replacements dates and covariate inspections for repairable systems in varying environments

Léa Brenière, Laurent Doyen and Christophe Bérenguer

European Journal of Operational Research, 2023, vol. 308, issue 3, 1126-1141

Abstract: This study investigates the issue of optimal preventive replacement scheduling for a repairable system, considering its failure/repair history and its environment or degradation, as characterised by covariates. The proposed approach is developed within a recurrent event modelling framework, in which the failure behaviour of the system is defined by its failure intensity, and perfect preventive replacements and imperfect corrective repairs are integrated following a virtual age assumption. The observed heterogeneity between systems is integrated through covariates by following a proportional hazard assumption. These covariates are assumed to be either fixed and represent, for example, the manufacturer origin, or to be dynamic and represent the monitored degradation process.

Keywords: Reliability; Virtual age model; Imperfect maintenance; Dynamic covariate; Condition-based maintenance (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:308:y:2023:i:3:p:1126-1141

DOI: 10.1016/j.ejor.2022.12.005

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