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Influence of Preventive Maintenance Policy on Manufacturing Systems Performances

机译：预防性维护政策对制造系统性能的影响

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Preventive maintenance (PM) can benefit systems having an increasing failure rate. However, PM is often scheduled in order to minimize the maintenance cost or to comply with production planning requirements or instruction from the equipment suppliers. Given that maintenance actions affect process time variability and resource utilization, such maintenance planning criteria may cause other adverse effects on the operational performance of the manufacturing system such as an increase in Work In Process (WIP) and cycle time. In this paper some approximate queueing models are utilize to asses the impact of PM interval on WIP. It is shown that WIP value is strongly influenced by the PM interval and that maintenance intervals corresponding to a minimum maintenance cost or minimum WIP can be quite different. This kind of analysis can help in making more informed decisions involving WIP and cost trade-offs.
机译：预防性维护（PM）可以使具有越来越大的失败率的系统受益。但是，PM经常安排，以最大限度地减少维护成本或符合设备供应商的生产规划要求或指示。考虑到维护行动影响过程时间可变性和资源利用率，这种维护规划标准可能导致对制造系统的操作性能的其他不利影响，例如过程（WIP）和循环时间的增加。在本文中，一些近似排队模型用于判断PM间隔对WIP的影响。结果表明，WIP值受到PM间隔的强烈影响，并且对应于最小维护成本或最小WIP的维护间隔可能是完全不同的。这种分析有助于制定涉及WIP和成本权衡的更明智的决策。

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