Integrated maintenance/production planning plan for a multiple-product manufacturing system with variable maintenance and changeover costs considerations
Résumé
This paper deals with the problem of integrated maintenance/production strategy for multiple-product manufacturing system. We consider a manufacturing system consisting of one machine which ensures the production of several types of products in order to satisfy randomly demands corresponding to every type of product. At any given time, the machine is able to produce one type of product, and then switches to another. From the point of view of reliability, the manufacturing system is subject to random failures. The goal of this study is to establish an economical production planning followed by an optimal maintenance strategy, taking into account the influence of production rate on the system degradation. Compared to previous works dealing with the same subject, the first contribution of this study consists of the considering a variable setup costs according to the type of product to switch. More than that, we adopt an increased preventive maintenance cost according the system degradation. Analytical models are developed in order to minimize sequentially the production/holding cost and the total maintenance cost. Finally, a numerical example is presented to illustrate the usefulness of the proposed approach.
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