Dynamics of an optimal maintenance policy for imperfect repair models

Gustavo L. Gilardoni, Maria Luiza Guerra de Toledo, Marta A. Freitas and Enrico A. Colosimo

European Journal of Operational Research, 2016, vol. 248, issue 3, 1104-1112

Abstract: A preventive maintenance policy that considers information provided by observing the failure history of a repairable system is proposed. For a system that is to be operated for a long time, it is shown that the proposed policy will have a lower expected cost than a periodical one which does not take into account the failure history. Statistical inference using both maximum likelihood point estimates and bootstrap confidence intervals is discussed. The proposed policy is applied to a real situation involving maintenance of off-road engines owned by a Brazilian mining company. A simulation study compares the performance between the maintenance policy proposed and the periodical one.

Keywords: Reliability; Bootstrap confidence bands; Continuous wear-out; Counting processes; Minimal repair (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:248:y:2016:i:3:p:1104-1112

DOI: 10.1016/j.ejor.2015.07.056

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