Evaluation of decision criteria to optimize a dynamic maintenance policy based on Maintenance Free Operating Period concept
Résumé
This paper deals with a dynamic maintenance policy for a multi-component system based on the Maintenance Free Operating Period concept. When a maintenance occasion is considered as mandatory, a maintenance decision criterion has to be defined to identify the components to be replaced during the maintenance stop. Contrary to a single component system where the decision is obvious, in a multi-component system the selection can be performed in very different ways. In this framework, three maintenance decision criteria considering the maintenance costs and the maintenance efficiency are investigated. Their impacts on the maintenance policy are illustrated on a numerical example. Moreover a genetic algorithm is developed to support the criterion evaluation and to significantly reduce the computation time