城际动车组隧道压力波及车内压力波动研究

宋军浩; 刘加利; 姚拴宝; 陈大伟

doi:10.13890/j.issn.1000-128X.2022.06.007

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城际动车组隧道压力波及车内压力波动研究

铁道机车车辆 | 更新时间：2024-08-02

- 城际动车组隧道压力波及车内压力波动研究
- Study on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel
- 机车电传动 2022年第6期页码：44-50
- 作者机构：
  
  中车青岛四方机车车辆股份有限公司, 山东青岛 266111
- 作者简介：
  
  刘加利（1985—），男，正高级工程师，主要从事列车空气动力学方面的研究；E-mail: liujiali@cqsf.com
- 基金信息：
  
  国家重点研发计划资助项目(2016YFB1200504-F);中国中车股份有限公司科技研究开发计划项目
- DOI：10.13890/j.issn.1000-128X.2022.06.007
  中图分类号： U292.91⁺4;U266.2
- 纸质出版日期：2022-11-10，
  
  收稿日期：2021-09-01，
  
  修回日期：2022-10-26，
- 稿件说明：
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宋军浩, 刘加利, 姚拴宝, 等. 城际动车组隧道压力波及车内压力波动研究[J]. 机车电传动, 2022,(6):44-50.

SONG Junhao, LIU Jiali, YAO Shuanbao, et al. Study on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel[J]. Electric drive for locomotives, 2022,(6):44-50.
宋军浩, 刘加利, 姚拴宝, 等. 城际动车组隧道压力波及车内压力波动研究[J]. 机车电传动, 2022,(6):44-50. DOI： 10.13890/j.issn.1000-128X.2022.06.007.

SONG Junhao, LIU Jiali, YAO Shuanbao, et al. Study on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel[J]. Electric drive for locomotives, 2022,(6):44-50. DOI： 10.13890/j.issn.1000-128X.2022.06.007.

摘要

城际动车组大载客量需求使得列车头型变短，城际线路小隧道断面需求使得列车隧道运行阻塞比增大，列车隧道压力波和车内压力波动问题突出，影响乘客舒适性。文章着重研究大阻塞比条件下的城际动车组隧道压力波及车内压力波动特性，基于三维瞬态可压缩RANS方程和SST

湍流模型，利用滑移网格技术建立城际动车组隧道压力波数值计算方法，研究不同车速、不同隧道直径下的列车隧道压力波特性。通过经验公式，计算不同动态密封指数下的车内压力波动。计算结果表明，隧道压力波主要由车速和阻塞比决定，且车速的影响更为显著。随着车速的增加，客室区和司机室区的车内压力波动显著增大，司机室区的车内压力波动大于客室区的车内压力波动。在车速160 km/h、隧道直径7.2 m和7.4 m条件下，动态密封指数5 s时，客室区和司机室区的车内压力波动达到良好标准；在车速200 km/h隧道直径7.2 m和7.4 m条件下，动态密封指数8 s时，客室区和司机室区的车内压力波动达到良好标准。

Abstract

The demand for large passenger capacity of intercity EMU leads to a shorter streamlined train head

the demand for small cross section of the intercity/suburban line tunnel leads to a larger blockage ration of the train passing through the tunnel. The pressure wave and interior pressure fluctuation of the train passing through the tunnel are the prominent problems

which affect the comfort of the passengers. This paper mainly focuses on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel under the condition of large blockage ratio. Based on the three-dimensional transient compressible RANS equation and the SST

turbulence model

the numerical calculation method of pressure wave of the intercity EMU passing through the tunnel was establis

hed using the slip grid technology. The pressure wave characteristics of the train passing through the tunnel were studied for different train speeds and different tunnel diameters. The empirical formula was used to calculate the interior pressure fluctuation under different dynamic tightness coefficients. The computational results show that the pressure wave of the intercity EMU passing through the tunnel is mainly determined by the train speed and the blocking ratio

and the influence of the train speed is more significant. With the increase of the train speed

the interior pressure fluctuations of the passenger compartment area and the driver's cab area are significantly increased. The interior pressure fluctuation of the driver's cab area is greater than that of the passenger compartment area. When the train speed is 160 km/h

the interior pressure fluctuations of the passenger compartment area and driver's cab area reach the good standard when the dynamic tightness coefficient reaches 5 s

for the tunnel diameters of 7.2 m and 7.4 m. When the train speed is 200 km/h

the interior pressure fluctuations of the passenger compartment area and driver's cab area reach the good standard when the dynamic tightness coefficient reaches 8 s

for the tunnel diameters of 7.2 m and 7.4 m.

关键词

城际动车组压力波车内压力波动阻塞比动态密封指数

Keywords

intercity/suburban EMUpressure waveinterior pressure fluctuationblockage ratiodynamic tightness coefficient

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