| 修理工可单重休假的预防维修更换策略 |
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| 引用本文：李海霞，孟宪云，陈雁东，刘海涛，蒋燕美，赵丹，陈变娟.修理工可单重休假的预防维修更换策略[J].经济数学,2012,(2):40-44 |
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| 中文摘要:本文研究了一个修理工带有单重休假的单部件可修系统.为了延长系统的使用寿命，在系统故障前考虑了预防维修，且假定预防维修能够“修复如新”，而故障维修为“修复非新”时，以系统的故障次数N为更换策略.通过更新过程和几何过程理论，得出系统经长期运行单位时间内期望费用的明显表达式，并对预防维修的定长间隔时间T及更换策略N进行了讨论.最后，通过实例分析，求出最优策略N*，使得目标函数取得最优值. |
| 中文关键词:可修系统 单重休假 预防维修 故障次数 几何过程 |
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| A Preventive Repair Replacement Policy with Repairman Single Vacations |
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| Abstract:A repairable system consisting of one component with a single vacations and one repairman was studied. In order to prolong the working time of the system, a preventive repair before the system failure was considered, and assume that it can be “as good as new”, while a repair after the system failure is not “as good as new”. Under this assumption, the replacement policy N based on the number of system was considered by using renew process theory and geometric process theory, the explicit expressions of the long-run expected cost per unit time was derived, and some problems for the length of fixed time T of the preventive repair and the replacement policy N of the system were discussed. Finally, the optimal strategy N* was obtained by the numerical example,which can make the objective function obtain the optimal value. |
| keywords:repairable system single vacation preventive repair failure number geometric process |
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