Research on multi-component dual-objective group maintenance for electric multiple unit considering maintenance site

doi:10.3785/j.issn.1006-754X.2022.00.026

Chin J Eng Design

2022, Vol. 29

Issue (2): 168-175 DOI: 10.3785/j.issn.1006-754X.2022.00.026

Optimization Design

Research on multi-component dual-objective group maintenance for electric multiple unit considering maintenance site

Yan-kun QI(

),Hong WANG(

),Yong HE,Lü XIONG

School of Mechatronic Engineering，Lanzhou Jiaotong University，Lanzhou 730070，China

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Abstract

In order to explore the influence of maintenance site selection on the formulation of multi-component maintenance strategies for electric multiple units, considering the factors such as maintenance mode, maintenance site category and maintenance personnel, and with the goal of reducing maintenance cost and maintenance time, a multi-component dual-objective group maintenance model for electric multiple units considering maintenance site was established. Firstly, based on the bi-level imperfect maintenance mode, the constraint of maintenance site on maintenance mode was introduced, and the maintenance mode was further selected through the selection of maintenance site. Then, a component maintenance task allocation algorithm was proposed to realize the optimal match between maintenance personnels and component maintenance tasks, so as to minimize the system maintenance time; at the same time, the algorithm was introduced into genetic algorithm to solve the group maintenance model considering maintenance site and system maintenance time. The example analysis showed that the proposed maintenance strategy reduced the maintenance cost and maintenance time of system on the premise of meeting the reliability requirements of electric multiple unit components. The research results can provide a theoretical reference for the reasonable formulation of electric multiple unit maintenance strategy.

Key words： electric multiple unit group maintenance bi-level imperfect maintenance site maintenance personnel

Received: 06 May 2021 Published: 06 May 2022

CLC:

TH 17

Corresponding Authors: Hong WANG E-mail: 1808734197@qq.com;wh@mail.lzjtu.cn

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Cite this article:

Yan-kun QI,Hong WANG,Yong HE,Lü XIONG. Research on multi-component dual-objective group maintenance for electric multiple unit considering maintenance site. Chin J Eng Design, 2022, 29(2): 168-175.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2022.00.026 OR https://www.zjujournals.com/gcsjxb/Y2022/V29/I2/168

考虑维修场所的动车组多部件双目标成组维修研究

为探究维修场所选择对动车组多部件维修策略制定的影响，综合考虑维修方式、维修场所类别和维修人员等因素，以减少维修成本和维修时间为目标，建立了考虑维修场所的动车组多部件双目标成组维修模型。首先，在两级非完美维修方式的基础上，引入维修场所对维修方式的约束，通过维修场所的选择进一步选择维修方式。然后，提出一种部件维修任务分配算法，实现了维修人员与部件维修任务的优化匹配，使得系统维修时间最短；同时，将该算法引入到遗传算法中，用于求解考虑维修场所和系统维修时间的成组维修模型。实例分析表明，所提出的维修策略在满足动车组部件可靠度要求的前提下，减少了系统的维修成本和维修时间。研究结果可为合理制定动车组维修策略提供理论参考。

关键词： 动车组, 成组维修, 两级非完美, 维修场所, 维修人员

Fig.1 Comparison of effect of primary maintenance and advanced maintenance

Fig.2 Maintenance strategy of electric multiple unit system in different operation intervals

Fig.3 Maintenance task allocation scheme of electric multiple unit system components

Table 1 Initialized population for solving electric multiple unit system maintenance model

部件	$θ j$	$η j$	$R j m i n$	$t j p / h$	$t j h / h$	$c j p / 元$	$c j h / 元$	$c j b r / 元$
1	1.25	186	0.65	7	17	750	1 250	3 600
2	3.20	108	0.70	9	25	800	1 200	3 500
3	3.10	150	0.75	2	9	450	800	2 800
4	2.60	130	0.60	12	31	600	1 000	3 000
5	3.00	100	0.60	5	15	350	700	2 200
6	2.50	120	0.68	10	26	300	600	2 000
7	5.80	160	0.88	15	36	1 200	2 000	4 000

Table 2 Parameters of each component of electric multiple unit mechanical system

Fig.4 Comparison of maintenance scheme optimization solutions of electric multiple unit mechanical system under different population generations

维修方案	维修时机	维修场所	维修方式	维修次数	维修时间 $T / h$	维修成本/元
维修方案	维修时机	维修场所	维修方式	维修次数	维修时间 $T / h$	$C g$	$C h$	$C$
1	1	0	0-0-0-0-0-0-0	6	174	27 844	13 000	40 844
	2	0	0-0-0-0-0-0-0
	3	1	1-1-1-1-1-1-0
	4	0	0-0-0-0-0-0-0
	5	2	2-1-1-1-1-1-1
	6	0	0-0-0-0-0-0-0
	7	2	1-2-2-1-1-2-0
	8	1	0-0-0-0-0-0-1
	9	2	2-0-1-2-2-0-0
	10	2	0-2-0-0-0-1-0
	11	0	0-0-0-0-0-0-0
2	1	0	0-0-0-0-0-0-0	4	145	28 003	7 000	35 003
	2	0	0-0-0-0-0-0-0
	3	1	1-1-1-1-1-1-0
	4	0	0-0-0-0-0-0-0
	5	2	1-1-1-1-2-2-1
	6	0	0-0-0-0-0-0-0
	7	0	0-0-0-0-0-0-0
	8	2	2-2-2-2-1-1-1
	9	0	0-0-0-0-0-0-0
	10	1	1-1-1-1-1-1-0
	11	0	0-0-0-0-0-0-0

Table 3 Comparison of optimization results of different maintenance schemes for electric multiple unit mechanical system

Table 4 Maintenance time of electric multiple unit mechanical system based on different schemes

Fig.5 Component allocation scheme for the 8th maintenance opportunity of electric multiple unit mechanical system


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