Optimal component replacement decisions using vibration monitoring and the proportional-hazards model
Optimal component replacement decisions using vibration monitoring and the proportional-hazards model
复制标题
DOI：
10.1057/palgrave.jors.2601261
复制
发表时间：
2002-01
影响因子：
3.6
通讯作者：
P. Vlok;J. L. Coetzee;D. Banjevic;A. Jardine;V. Makis
中科院分区：
文献类型：
--
作者：
P. Vlok;J. L. Coetzee;D. Banjevic;A. Jardine;V. Makis
本文介绍了一个案例研究中，威布尔比例风险模型用于确定最佳更换政策的关键项目，这是受到振动监测。这种方法已被用于通过油碎片分析监测的背景下，在本文中，这种方法被扩展到振动监测的背景下。沿着审查Weibull比例风险模型以及用于优化的软件EXAKT。特别是，该案例考虑了SASOL石化公司所属洗煤厂循环泵的基于状态的维护。在这项研究中建议的基于状态的维修政策是基于收集的历史在一段时间内的2年，并与目前的做法进行比较。该政策是使用从工厂的后续操作中产生的数据进行验证。
This paper describes a case study in which the Weibull proportional-hazards model is used to determine the optimal replacement policy for a critical item which is subject to vibration monitoring. Such an approach has been used to date in the context of monitoring through oil debris analysis, and this approach is extended in this paper to the vibration monitoring context. The Weibull proportional-hazards model is reviewed along with the software EXAKT used for optimization. In particular the case considers condition-based maintenance for circulating pumps in a coal wash plant that is part of the SASOL petrochemical company. The condition-based maintenance policy recommended in this study is based on histories collected over a period of 2 years, and is compared with current practice. The policy is validated using data that arose from subsequent operation of the plant.