Optimal Maintenance Scheduling by Flattening Element Reliability through Appropriate Segmentation of Maintenance Interval

抄録

In order to keep reliability of industrial systems, maintenance of system is required. Through a maintenance plan, it is expected not only to keep the system reliability but also to reduce the total cost. In this research, maintenance scheduling method is proposed. The method reduces the total number of maintenance by flattening element reliability while keeping the current system reliability level. To obtain the optimal maintenance scheduling, we assume that maintenance improve the system reliability. In order to satisfy the assumption, the segmentation of the maintenance interval is proposed. By using the proposed segmentation of the maintenance interval, the monotone increase relationship between the maintenance interval and the failure rate can be fulfilled. The proposed optimal maintenance interval is applied to the actual data of equipment in thermal power stations and it gives satisfactory results.