Optimization of Preventive Maintenance Policies for Aging Equipments in Finite Time Horizon
The recursion relationship between the failure rate and the equipment age before and after preventive maintenance (PM) was built up concerning with the concept of improvement factor. The optimal imperfect PM policy model in finite time horizon of the aging equipments following Weibull distribution was proposed, which can minimize the total relative cost of the equipment PM. The optimal maintenance frequency and optimal maintenance interval under imperfect maintenance were determined by the model, and the reliability after each PM of equipments was considered. The model built in this paper can be used the decision supporting the maintenance plan and providing decision supporting for job shop scheduling.
L.Y. Xie, M.N. James, Y.X. Zhao and W.X. Qian
A. Y. Cang et al., "Optimization of Preventive Maintenance Policies for Aging Equipments in Finite Time Horizon", Advanced Materials Research, Vols. 118-120, pp. 586-590, 2010