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A model for a dynamic preventive maintenance policy

机译:动态预防性维护策略的模型

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This paper exhibits a stochastic model which describes the evolution of a material submitted to inspections. When an inspection takes place, a decision depending on the observed state of the material is taken. If the material is in “not too bad” state, no service is rendered, only the date of the next inspection is chosen. If the material is in a “bad” working state, a service takes place. Roughly speaking, the failure rates of the material are constant, the inspection and repair rates are general. We define the average cost function corresponding to the utilization of this material and we show how it can be computed. Then we determine the inspection rates which give the optimal maintenance policy using a simulated annealing algorithm. We observe experimentally that the best durations between inspections are deterministic ones.
机译:本文展示了一个随机模型,该模型描述了提交给检查的材料的演变。进行检查时,将根据观察到的材料状态做出决定。如果材料处于“不太差”状态,则不提供任何服务,仅选择下一次检查的日期。如果材料处于“不良”工作状态,则会进行维修。粗略地说,材料的失效率是恒定的,检查和维修率是一般的。我们定义了与该材料的利用率相对应的平均成本函数,并说明了如何进行计算。然后,我们使用模拟退火算法确定能够提供最佳维护策略的检查率。我们通过实验观察到,两次检查之间的最佳持续时间是确定性的。

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