Modelling and application of condition-based maintenance for a two-component system with stochastic and economic dependencies

Do, P, Assaf, R, Scarf, PA ORCID: https://orcid.org/0000-0001-5623-906X and Iung, B 2019, 'Modelling and application of condition-based maintenance for a two-component system with stochastic and economic dependencies' , Reliability Engineering & System Safety, 182 , pp. 86-97.

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Abstract

This paper develops a model of a condition-based maintenance policy for a two-component system with both stochastic and economic dependencies. The stochastic dependency is such that the degradation rate of each component depends not only on its own state (degradation level) but also on the state of the other component. The economic dependency is such that combining multiple maintenance activities has lower cost than performing maintenance on components separately. To select a component or components to be preventively maintained, adaptive preventive maintenance and opportunistic maintenance rules are proposed. A cost model is developed to find the optimal values of decision variables. A case study of a gearbox system demonstrates the utility of the proposed model.

Keywords: Condition-based maintenance, maintenance optimization, two-component system, state dependence, stochastic dependence, economic dependence.

Item Type:	Article
Schools:	Schools > Salford Business School > Salford Business School Research Centre Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title:	Reliability Engineering & System Safety
Publisher:	Elsevier
ISSN:	0951-8320
Related URLs:	Publisher
Funders:	FP7 Marie Curie ITN
Depositing User:	Dr Philip Scarf
Date Deposited:	19 Oct 2018 07:44
Last Modified:	02 Dec 2019 10:00
URI:	http://usir.salford.ac.uk/id/eprint/48672

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