Quantifying the risk in age and block replacement policies
Quantifying the risk in age and block replacement policies
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DOI：
10.1057/jors.2009.40
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发表时间：
2010-07
影响因子：
3.6
通讯作者：
B. Giri;T. Dohi
中科院分区：
文献类型：
--
作者：
B. Giri;T. Dohi
在文献中已经研究了预防性维护策略，而没有考虑由于成本可变性的风险。在本文中，我们考虑两个最流行的预防性更换政策，即年龄和块更换政策下的长期平均成本和期望单位时间成本标准。为了量化预防性维护策略中的风险，我们使用了一段时间内累积成本的长期方差。我们数值推导了风险敏感的预防性更换策略，并研究了风险敏感的最优性准则对管理决策的影响。我们还研究了预期单位时间成本标准的性能作为替代传统的长期平均成本标准。
Preventive maintenance policies have been studied in the literature without considering the risk due to the cost variability. In this paper, we consider the two most popular preventive replacement policies, namely, age and block replacement policies under long-run average cost and expected unit time cost criteria. To quantify the risk in the preventive maintenance policies, we use the long-run variance of the accumulated cost over a time interval. We numerically derive the Risk-sensitive preventive replacement policies and study the impact of the Risk-sensitive optimality criterion on the managerial decisions. We also examine the performance of the expected unit time cost criterion as an alternative to the traditional long-run average cost criterion.