[1]张雷,林晓龙,尹小放,等.线间距对400 km/h高速列车隧道交会气动性能的影响[J].高速铁路技术,2021,12(02):43-49.[doi:10.12098/j.issn.1674-8247.2021.02.008]
　ZHANG Lei,LIN Xiaolong,YIN Xiaofang,et al.Influence of Distance between Centers of Tracks on the Aerodynamic Performance of 400 km/h High-speed Trains Meeting in Tunnels[J].HIGH SPEED RAILWAY TECHNOLOGY,2021,12(02):43-49.[doi:10.12098/j.issn.1674-8247.2021.02.008]
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线间距对400 km/h高速列车隧道交会气动性能的影响()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
12卷
期数:
2021年02期
页码:
43-49
栏目:
出版日期:
2021-04-28

文章信息/Info

Title:
Influence of Distance between Centers of Tracks on the Aerodynamic Performance of 400 km/h High-speed Trains Meeting in Tunnels
文章编号:
1674—8247(2021)01—0043-07
作者:
张雷;  林晓龙;  尹小放;  杨明智;  王田天
1. 中南大学, 长沙 410075;
2. 轨道交通安全教育部重点实验室, 长沙 410075;
3. 中铁二院工程集团有限责任公司, 成都 610031
Author(s):
ZHANG Lei;  LIN Xiaolong;  YIN Xiaofang;  YANG Mingzhi;  WANG Tiantian
1. Central South University, Changsha 410075, China;
2. Key Laboratory of Traffic Safety on Track Ministry of Education, Changsha 410075, China;
3. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
关键词:
高速列车|线间距|交会压力波|隧道|压力幅值
Keywords:
high-speed train|distance between centers of tracks|meeting pressure wave|tunnel|pressure amplitude
分类号:
U451+.3
DOI:
10.12098/j.issn.1674-8247.2021.02.008
文献标志码:
A
摘要:
高速列车以速度400 km/h运行时，在隧道内交会产生的交会压力波幅值激增，而线间距作为影响高速列车交会气动性能的关键参数之一，对列车400 km/h运行时隧道内交会压力波的影响特性有待探明。本文采用计算流体力学数值仿真方法和网格滑移技术，分别模拟了5.0 m、5.2 m和5.4 m线间距参数条件下高速列车隧道内交会气动特性，对比分析了不同线间距条件下高速列车表面、隧道壁面压力极值及高速列车气动力特性。研究结果表明：（1）高速列车在100 m2隧道内交会时，线间距对高速列车表面最大交会压力幅值的影响不明显，不考虑鼻尖点，3种线间距对应的高速列车表面最大交会压力波幅值分别为13 606 Pa、13 688 Pa和13 664 Pa，已经超出高速列车结构承载极限±6 000 Pa的要求；（2）线间距对隧道壁面最大压力极值的影响不明显，但线间距增加对高速列车交会侧向力及倾覆力矩的缓解效果明显。
Abstract:
The amplitude of pressure wave generated by 400 km/h high speed trains meeting in tunnels increases sharply. The distance between centers of tracks is one of the key parameters affecting the aerodynamic performance of high speed trains passing each other, of which the influence characteristics on the meeting pressure wave of 400 km/h trains in tunnels remain to be proved. In this paper, the numerical simulation method of computational fluid mechanics and sliding mesh technology are applied to simulate the aerodynamic characteristics of high speed trains meeting in tunnels under the distance between centers of tracks of 5.0 m, 5.2 m and 5.4 m respectively. The extreme pressure on the surface of high speed trains and tunnel walls and the aerodynamic characteristics of high-speed trains under different distance between centers of tracks are compared and analyzed. The research results show that when high speed trains meet in a 100 m2 tunnel, the distance between centers of tracks brings no obvious influence on the amplitude of the maximum meeting pressure on the surface of high speed trains. Without considering the nose tip, the amplitude of the maximum meeting pressure on the surface of high speed trains corresponding to the three kinds of distance between centers of tracks is 13 606 Pa, 13 688 Pa and 13 664 Pa respectively, which exceed the structural bearing limit of ±6 000 Pa of high speed trains. The influence of distance between centers of tracks on the maximum pressure on the tunnel wall is not obvious, but the effect of increasing distance between centers of tracks on the release of lateral force and overturning moment of high speed trains passing each other is obvious.

备注/Memo

备注/Memo:
作者简介:张雷(1986-),男,副教授。基金项目:中铁二院工程集团有限责任公司科技发展计划项目（KSNQ202061）引文格式:张雷, 林晓龙, 尹小放, 等. 线间距对400 km/h高速列车隧道交会气动性能的影响[J]. 高速铁路技术,2021,12(2):43-49.ZHANG Lei, LIN Xiaolong, YIN Xiaofang, et al. Influence of Distance between Centers of Tracks on the Aerodynamic Performance of 400 km/h High-speed Trains Meeting in Tunnels[J]. High Speed Railway Technology, 2021, 12(2):43-49.
更新日期/Last Update: 2021-04-28