关键词: 生产批量, 预防性维护, 故障, 设备运行

Abstract: Based on the lot-sizing problem of limited capacity,a joint decision model of Preventive Maintenance (PM) and Capacitated Lot-Sizing Problem (CLSP) was proposed to minimize the total cost of production and maintenance.To formulate the interactive relationship between production and maintenance activities,run-based PM policy was adopted to evaluate the influence of different production load on machine state accurately.To solve the problem that the maintenance period was less than production period,the multiple PM operations were assumed.Lingo was used to solve the proposed model,and the numerical example indicated that over-maintenance and under-maintenance could be avoided by proposed method under different machine utilizations and PM intervals by comparing to the interval-based PM policy.Thus the production and maintenance costs were reduced,and the average maintenance cost was very approximate to the optimum.

Key words: lot-sizing, preventive maintenance, failure, machine run