Opportunistic policy for optimal preventive maintenance of a multi-component system in continuous operating units
Opportunistic policy for optimal preventive maintenance of a multi-component system in continuous operating units
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DOI：
10.1016/j.compchemeng.2009.03.003
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发表时间：
2009-09-09
影响因子：
4.3
通讯作者：
Aissani, Djamil
中科院分区：
文献类型：
--
作者：
Laggoune, Radouane;Chateauneuf, Alaa;Aissani, Djamil
对于连续运行的装置，如石化装置，由于停机造成的生产损失很高，经济盈利能力取决于实施合适的维护政策，从而增加可用性并降低运行成本。针对随机故障多部件串联系统，在一般寿命分布下，提出了成本率最小的预防性维修计划方法。预期总成本由与部件相关的纠正和预防成本以及与整个系统相关的共同成本给出，特别是系统停工期间的生产损失。当系统出现故障时，无论是纠正故障还是预防性故障，都要考虑更换预防性非故障组件的机会。提出了一种基于蒙特卡罗模拟的信息搜索求解方法，并将其应用于某炼油厂氢压缩机部件更换的优化设计中。2009爱思唯尔有限公司版权所有。
For continuous operating units such as petrochemical plants, the production loss due to downtime is high, and the economic profitability is conditioned by the implementation of suitable maintenance policy that could increase the availability and reduce the operating costs. In this paper, a preventive maintenance plan approach is proposed for a multi-component series system subjected to random failures, where the cost rate is minimized under general lifetime distribution. The expected total cost is given by corrective and preventive costs, which are related to the components, and by the common costs related to the whole system, especially the production loss during system shutdown. When the system is down, either correctively or preventively, the opportunity to replace preventively non-failed components is considered. A solution procedure based on Monte Carlo simulations with informative search method is proposed and applied to the optimisation of the component replacement for the hydrogen compressor in an oil refinery. (C) 2009 Elsevier Ltd. All rights reserved.