80 km/h B型地铁列车隧道内运行空气动力学试验研究  

Experimental Study on Aerodynamics of 80 km/h B-type Metro Train Running in a Tunnel

作　　者：李杨 刘友梅 柳晓峰 周安德 梁习锋[2] 熊小慧[2] LI Yang;LIU Youmei;LIU Xiaofeng;ZHOU Ande;LIANG Xifeng;XIONG Xiaohui(CRRC Zhuzhou Electric Locomotive Co.,Ltd.,Zhuzhou,Hunan 412001;Key Laboratory of Traffic Safety on Track Ministry of Education,Central South University,Changsha 410075)

机构地区：[1]中车株洲电力机车有限公司,湖南株洲412001 [2]中南大学轨道交通安全教育部重点实验室,长沙410075

出　　处：《都市快轨交通》2023年第5期51-58,共8页Urban Rapid Rail Transit

基　　金：湖南省科技创新计划资助项目(2021RC2107)。

摘　　要：为探明80 km/h B型地铁列车在隧道内运行时空气动力学效应,采用实车试验方法,在南宁某隧道直径为5.4 m的全地下线路开展空气动力学测试,分析列车在隧道内运行时,车内外气压波动情况以及车内耳压舒适度情况。研究结果表明:列车以80 km/h速度通过隧道内中间风井位置时,车内外压力波动剧烈,车外与车内测点峰峰值分别为1452 Pa与923.4 Pa;列车在车内外压力波动剧烈时,车外各测点压力差异大,车内各测点压力差异小,车外各测点峰峰值的均方差值为车内各测点峰峰值的均方差值的9.6倍;列车在非风井区间运行时耳压舒适度良好,而在风井区间运行时有造成乘客耳压不舒适的风险。研究结果可为80 km/h速度等级地铁列车耳压舒适度的评估和改善提供参考。To investigate the aerodynamic effect of an 80 km/h B-type metro train running in a tunnel,an aerodynamic test was conducted in a fully underground line with a tunnel diameter of 5.4 m in Nanning using the real vehicle test method.The fluctuation of air pressure inside and outside the train and the comfort of ear pressure inside the train during tunnel operation were analyzed.The research results showed that when the train passed through the middle air shaft position in the tunnel at 80 km/h,the pressure fluctuation inside and outside the train was drastic,and the maximum peak-to-peak values outside and inside the train were 1,452 and 923.4 Pa,respectively.When the pressure fluctuation inside and outside the train was drastic,the pressure difference between each measurement point outside the train was large,whereas that inside the train was small.The mean square difference of the peak-to-peak values outside the train was 9.6 times that inside the train.The ear pressure comfort was satisfactory when the train was running in the non-wind shaft area,but there was a risk of passengers’ear pressure discomfort when it was running in the wind shaft area.The results of this study can provide a reference for the evaluation and improvement of the ear pressure comfort of the 80 km/h speed class metro train.

关 键 词：地铁列车 空气动力学 压力波 风井 耳压舒适度 

分 类 号：U270.2[机械工程—车辆工程]