Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel

PENGLonghu; LIXiangdong; LIWenbin; WANGXiaobing; LIUChunhao

doi:10.15938/j.jhust.2023.03.019

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Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel

更新时间：2026-08-31

- Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel
- Vol. 28, Issue 3, Pages: 149-158(2023)
- 作者机构：
  
  1. 中铁建电气化局集团南方工程有限公司,武汉,430070
  2. 北京铁科英迈技术有限公司,北京,100080
  3. 青岛大学机电工程学院,山东,青岛,266071
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2023.03.019
  CLC： U225.1
- Published：2023
- 稿件说明：
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PENGLonghu, LIXiangdong, LIWenbin, et al. Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel[J]. 2023, 28(3): 149-158.
DOI：

PENGLonghu, LIXiangdong, LIWenbin, et al. Study on Aerodynamic Factors of Overhead Catenary in High-speed Railway Tunnel[J]. 2023, 28(3): 149-158. DOI： 10.15938/j.jhust.2023.03.019.

摘要

为了探究高速铁路隧道内接触网空气动力学的影响因素

基于有限体积法

建立动车组通过不同隧道的空气动力学模型

并采用流体力学软件数值模拟接触网空气的三维外流场。从仿真结果中得到不同工况条件下的风荷载极值

分析计算接触网线索的基本风偏移。研究结果表明:隧道内接触网风荷载的主要影响因素为隧道净空断面积与车速。动车组在隧道内通过和交会时

接触网线索的最大风偏移值随着隧道净空断面积的增大而减小

随着速度的增大呈非线性的方式增加。为保证安全

可考虑减小接触网的跨距长度或增大线索的水平张力来减少接触网线索的风偏移。

Abstract

In order to explore the influencing factors of catenary aerodynamics in high-speed railway tunnels

based on the finite volume method

the aerodynamics models of train-set passing through different tunnels were established

and the three-dimensional outflow field of catenary air were numerically simulated by using fluid dynamics software. The extreme values of wind load under different working conditions were obtained from the simulation results

and the basic wind migration of catenary clues was analyzed and calculated. The results show that the main factors affecting the wind load of the catenary in the tunnel are tunnel clearance area and vehicle speed. When the train-set passes and crosses in the tunnel

the maximum wind offset value of the catenary clues decreases with the increase of the tunnel clearance area

and increases in a nonlinear way with the increase of the speed. In order to ensure safety

the wind deviation of catenary can be reduced by reducing the span length of catenary or increasing the horizontal tension of catenary.

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