多产品生产系统的生产与预防维修综合计划优化模型

摘要

生产与维修是制造业最重要的活动并共用企业设备资源,因此合理协调二者关系是企业控制成本的关键.使用时间延迟维修模型模拟设备老化和维修过程,将某一特定的计划周期等分成若干个生产阶段,考虑每个阶段的生产、库存、延期未交货、不合格产品成本、故障维修活动,以及周期性的预防维修活动,建立总成本模型.通过对案例进行分析阐明此模型,旨在求解出最佳预防维修间隔时间和各阶段各产品产量,得出最佳的生产和维修综合计划.%Production and maintenance are the most important activity in manufacturing and they share the enterprise's equipment, so coordinatingthe relationshipproperly between them is the key to controlling total costs.The aging and maintenance process of equipment is simulated by using delay-time model and the specific production horizon is divided to several periods.Considering the production, inventory, backorder costs, unqualified products costs, device failure maintenance and periodic preventive maintenance, the total costs model is established.An example using real data is presented to illustrate the model and the objective is to find the optimal number of production quantities of each product per period and the interval of preventive maintenance so that get the optimum comprehensive planning.