Gravity Window-based Opportunistic Maintenance Modeling for Multi-unit Serial Production Systems
A gravity window-based opportunistic maintenance decision model was proposed for a multi-unit serial production system.The model took the optimal preventive maintenance time points of the equipment as the center of mass and widened them into time windows based on the maintenance cost change rate.By defining the gravity between the time windows which is directly related to the target cost and introducing the gravity window-based opportunistic maintenance strategy,the system opportunistic maintenance decision scheme was effectively identified.Experimental analysis shows that the gravity window-based opportunistic maintenance model can obtain a lower maintenance cost rate than the traditional single time window model in most cases.
multi-unit serial systemopportunistic maintenancepreventive maintenancegravity windowtime window
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