Queuing network-based methodology for designing and essessing performance of centralized maintenance workshops
Résumé
In this paper, we are concerned with a maintenance workshop centralizing all corrective maintenance activities. Our goal is to propose a methodology for designing this Central Maintenance Workshop, enabling us to evaluate performance in terms of cost and sojourn time for a given budget. We propose a modelling framework based on queuing networks. The aim is to maximize operational availability of the production workshop, by reducing the sojourn time of failed equipment in the maintenance workshop. The proposed methodology leads to a maintenance decision support tool enabling to give the structure of the maintenance workshop, performing at a higher level, but at a reasonable configuration cost. Simulation results illustrate the influence of different parameters, such as the number of stations and the level of spare parts in the maintenance workshop, on the sojourn time of the equipment.