Joint maintenance-inventory optimisation of parallel production systems

Zahedi-Hosseini, Farhad, Scarf, Philip and Syntetos, Aris 2018. Joint maintenance-inventory optimisation of parallel production systems. Journal of Manufacturing Systems 48 (Part A) , pp. 73-86. 10.1016/j.jmsy.2018.06.002

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Abstract

We model a joint inspection and spare parts inventory policy for maintaining machines in a parallel system, where simultaneous downtime seriously impacts upon production performance and has a significant financial consequence. This dependency between system components means that analysis of realistic maintenance models is intractable. Therefore we use simulation and a numerical optimisation tool to study the cost-optimality of several policies. Inspection maintenance is modelled using the delay-time concept. Critical spare parts replenishment is considered using several variants of a periodic review policy. In particular, our results indicate that the cost-optimal policy is characterised by equal frequencies of inspection and replenishment, and delivery of spare parts that coincides with maintenance intervention. In general, our model provides a framework for studying the interaction of spare parts ordering with maintenance scheduling. The sensitivity analysis that we present offers insights for the effective management of such parallel systems, not only in a paper-making plant, which motivates our modelling development, but also in other manufacturing contexts.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Business (Including Economics)
Publisher:	Elsevier
ISSN:	0278-6125
Date of First Compliant Deposit:	9 December 2020
Date of Acceptance:	11 June 2018
Last Modified:	07 Nov 2023 02:05
URI:	https://orca.cardiff.ac.uk/id/eprint/136856

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