Ecological and joint optimization of preventive maintenance and spare parts inventories for an optimal production plan

Abstract

In this article, we propose a new management strategy combining optimal production plan with maintenance strategy as well as a management strategy of spare parts environmentally conscious. We consider the spare parts features (used or new) which will be used during maintenance operations (corrective or preventive) in order to reduce management costs and particularly the carbon footprint. The manufacturing process considered in this study makes one unique type of product so as to satisfy a random demand. Our objective with this work is first, to provide an optimal production plan minimizing the total inventories and production costs over a finite horizon. Afterwards, we consider the influence of this optimal production plan on the system level degradation so as to simultaneously determine the optimal maintenance plan and the optimal order quantity of spare parts (used and new). Thereby, we obtain a minimization of the global cost (maintenance and production) and carbon footprint. Finally, we provide numerical examples in order to illustrate ours policies.