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Joint maintenance and spare parts inventory optimization for multi-unit systems considering imperfect maintenance actions

机译：考虑不完美的维护行动，多单元系统的联合维护和备件库存优化

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摘要

Joint maintenance and spare parts inventory optimization has attracted increasing attention in recent years because of its capability in addressing the maintenance planning and the spare parts provisioning of industrial systems simultaneously. However, imperfect maintenance (IM) actions are either neglected or over-simplified as constant improvements in existing studies, which reduces their practicality in industrial applications. To tackle this limitation, this paper investigates the joint maintenance and spare parts inventory optimization for multi-unit systems with the consideration of IM actions as random improvement factors. First, a two-step approximate derivation method is proposed, which overcomes the derivation difficulties of replacement numbers due to the introduction of random improvement factors and enables the construction of the inventory level transition relationship. Then based on the inventory level transition relationship, an expected total cost model is formulated via the finite horizon stochastic dynamic programming (FHSDP). The decision variables are optimized by the joint use of enumeration and the FHSDP. Finally, a numerical simulation of a wind farm is carried out for illustration. Sensitivity analyses are further conducted to study the influences of critical parameters.
机译：由于其在同时解决维护规划和工业系统的备件供应时，近年来，联合维护和备件库存优化近年来引起了近年来的关注。然而，不完美的维护（IM）行动被忽视或过度简化为现有研究的不断改进，这降低了他们在工业应用中的实用性。为了解决这一限制，本文调查了多单元系统的联合维护和备件库存优化随着随机改善因素的考虑。首先，提出了一种两步近似推导方法，其克服了由于随机改善因子引入而克服了替换号的衍生困难，并实现了库存水平转换关系的构建。然后基于库存级转换关系，通过有限地平线随机动态编程（FHSDP）制定了预期的总成本模型。决策变量通过联合使用枚举和FHSDP进行了优化。最后，进行了用于说明的风电场的数值模拟。进一步进行敏感性分析以研究关键参数的影响。

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  • 来源
    《Reliability Engineering & System Safety》 |2020年第10期|106994.1-106994.12|共12页
  • 作者

    Yan Tao; Lei Yaguo; Wang Biao; Han Tianyu; Si Xiaosheng; Li Naipeng;

  • 作者单位

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Educ Minist Modern Design & Rotor Bearing Syst Key Lab Xian 710049 Shaanxi Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Imperfect maintenance; Joint optimization; Stochastic dynamic programming; Multi-unit systems;

    机译：不完美的维护;联合优化;随机动态规划;多单元系统;

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