Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair

XIONG Lü; LIU Zhilong

doi:10.13890/j.issn.1000-128X.2022.05.004

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Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair

Railway Rolling Stock | 更新时间：2024-08-02

- Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair
- Electric drive for locomotives Issue 5, Pages: 23-27(2022)
- 作者机构：
  
  1.广东交通职业技术学院轨道交通学院,广东广州 510650
  2.兰州交通大学机电工程学院,甘肃兰州 730070
  3.中国铁路成都局集团有限公司重庆车辆段,重庆　　400000
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.05.004
  CLC： U266.2;U269
- Published：10 September 2022，
  
  Received：19 January 2022，
  
  Revised：19 August 2022，
- 稿件说明：
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XIONG Lü, LIU Zhilong. Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair. [J]. Electric drive for locomotives (5):23-27(2022)
DOI：

XIONG Lü, LIU Zhilong. Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair. [J]. Electric drive for locomotives (5):23-27(2022) DOI： 10.13890/j.issn.1000-128X.2022.05.004.

摘要

动车组关键设备执行预防性维修操作时需要整列动车组停止运行，从而增加了动车组的停机损失。为此，引入换件修维修理念，在动车组关键设备到达预防性维修时机时，使用另一性能完好的设备将其更换下来并维修，从而克服了因设备预防性维修导致动车组停机损失骤增的不足。文章以动车组关键设备为研究对象，以预防性维修可靠度阈值为决策变量，以动车组关键设备一个更换周期内的维修总成本为决策目标，对其关键设备采取两级非完美维修措施，分别建立基于换件修的动车组关键设备预防性维修模型和基于非换件修的动车组关键设备预防性维修模型。算例分析结果表明，基于换件修的预防性维修可靠度阈值的优化结果高于非换件修，且换件修的维修总成本相比非换件修降低了22.2%。因此，基于换件修的动车组关键设备预防性维修策略可较大幅度降低设备一个寿命周期内的维修总成本，并可以使设备保持更高的可靠度水平。

Abstract

Considering that the entire electric multiple unit (EMU) needs to be withdrawn from service for carrying out preventive maintenance (PM) of the critical equipment

leading to an increase to downtime loss

the concept of replacement repair is proposed in this paper. Specifically

based on the preventive maintenance schedule

the involved critical equipment is replaced with another set of equipment with good performance and then delivered for maintenance

so as to overcome the shortage of sudden increase of service suspension loss caused by preventive maintenance. This paper took the EMU critical equipment as the research object. The preventive maintenance models were built respectively based on replacement repair and non-replacement repair

with the preventive maintenance reliability threshold as the decision making variable

the total maintenance cost of the EMU critical equipment in a replacement cycle as the decision making objective

and applying the 2-level imperfect maintenance measure for the EMU critical equipment. Based on the example analysis

the optimization results of preventive maintenance reliability threshold based on replacement repair are higher than that based on non-replacement repair

and the total maintenance cost of replacement repair is 22.2% lower than that of non-replacement repair. Therefore

the preventive maintenance strategy of the EMU critical equipment based on replacement repair can greatly reduce the total maintenance cost of equipment in a life cycle and can maintain the equipment at a higher reliability level.

关键词

动车组关键设备停机损失换件修维修总成本高速列车

Keywords

electric multiple unit (EMU)critical equipmentdowntime lossreplacement repairtotal maintenance costhigh-speed train

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