In this paper, an optimal integrated maintenance strategy is proposed for a production system composed by multi-machines that are mounted in parallel and based on the Center-of-Gravity approach. The production system produces one type of product in order to satisfy the random demand under a given service level. The different machines are subjected to a random failures and these failure rates are influenced by the variation of production rates. This study proposed an economical production policy and an optimal maintenance strategy. Firstly, the objective is to determine the economical production plan depend to the work times of each machine and by minimizing the costs of machines setup, inventory and work times. Secondly, we establish the optimal maintenance plan for each machine as well as the new improved maintenance strategy by joining the different maintenance actions in a single one basing to Center-of-Gravity approach.
An Optimal Integrated Maintenance Strategy for a Multi-Machines System
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