地铁线路纵断面优化系统设计与实现

doi:10.3976/j.issn.1002-4026.2022.04.017

Abstract

Abstract:

The design of the vertical alignment of metro tracks (VAMTs) is complex and time-consuming. To address this issue, an optimization system is developed for VAMTs. This system automatically and efficiently designs optimized VAMTs for a given horizontal alignment of metro tracks. The proposed system allows editing the track alignment and cars data, and proposes a train operation-based simulation model on train operation and an optimization model on the VAMT for minimizing the life-cycle cost and energy consumption of metro cars. The system allows manual adjustment of the vertical alignment of metro track plan obtained by the automatic solution, and automatically checks whether the adjusted plan meets the relevant specifications. A study case involving Guangzhou Metro Line 2 shows that the optimized VAMT reduces energy consumption by 3.2% relative to the actual VAMT for the same construction cost, indicating that the optimized VAMT can save life-cycle costs.

Key words: urban rail transit, vertical alignment of metro track, train control, automated design system, genetic algorithm

CLC Number:

U212.34

PENG Lei, FAN Cong, WANG Qian, WANG Xiao-chao, BAI Yun. Design and implementation of optimized system for vertical alignment of metro track[J].Shandong Science, 2022, 35(4): 136-143.

Figures/Tables 9

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References 9

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Open Access This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0), which permits third parties to freely share (i.e., copy and redistribute the material in any medium or format) and adapt (i.e., remix, transform, or build upon the material) the articles published in this journal, provided that appropriate credit is given, a link to the license is provided, and any changes made are indicated. The material may not be used for commercial purposes. For details of the CC BY-NC 4.0 license, please visit: https://creativecommons.org/licenses/by-nc/4.0

参数	参数值
列车长度/ m	140
列车质量/ t	335.4
基本阻力/ (N·kg^-1)	2.7551+0.001v+4.29×10^-4v² (其中,v为列车运行速度,km/h)
回转质量系数	0.06

算法参数	参数值	约束参数	参数值
最大计算时间/min	30	区间最小坡长/ m	140
种群大小	200	最小夹直线长度/ m	20
迭代次数	300	区间最小坡度/ %	0.3
交叉率	0.8	区间最大坡度/ %	3
变异率	0.3

纵断面方案	能耗/(kW·h)
纵断面方案	上行方向	下行方向	合计
实际纵断面	31.0	37.4	68.3
优化纵断面	30.3	35.8	66.1
节能率/%	2.3	4.0	3.2

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Design and implementation of optimized system for vertical alignment of metro track

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