基于乘员耳感舒适性的时速600km磁悬浮单线隧道最优净空面积研究  

Study on the optimal clearance area of a single line maglev tunnel with a speed of 600 km/h based on the ear comfort of passengers

作　　者：焦齐柱[1] 肖明清[1] 周俊超[1] 熊小慧[2,3,4] 谢鹏辉 JIAO Qizhu;XIAO Mingqing;ZHOU Junchao;XIONG Xiaohui;XIE Penghui(China Railway No.4 Survey and Design Group Co.,Ltd.,Wuhan 430000,China;Key Laboratory of Traffic Safety on Track(Central South University),Ministry of Education,Changsha 410075,China;Joint International Research Laboratory of Key Technology for Rail Traffic Safety,Changsha 410075,China;National&Local Joint Engineering Research Center of Safety Technology for Rail Vehicle,Changsha 410075,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]中南大学轨道交通安全教育部重点实验室,湖南长沙410075 [3]中南大学轨道交通安全关键技术国际合作联合实验室,湖南长沙410075 [4]中南大学轨道交通列车安全保障技术国家地方联合工程研究中心,湖南长沙410075

出　　处：《铁道科学与工程学报》2020年第12期2993-3002,共10页Journal of Railway Science and Engineering

基　　金：国家重点研发计划资助项目(2016YFB1200602-11)。

摘　　要：为探明时速600 km等级磁悬浮列车高速通过隧道产生的压力脉动对乘员耳感舒适性的影响,提出时速600 km等级磁悬浮单线隧道的有效净空面积。采用三维可压缩黏性流体N-S方程和k-ε双方程湍流模型,研究磁悬浮列车单车通过隧道时,隧道净空面积、隧道长度以及车体动态气密指数等参数对车内外压力变化的影响规律,接着按照交变压力作用下的人体舒适性考核指标,获得了不同气密指数下时速600 km磁悬浮列车单线隧道最优净空面积。研究结果可为高速磁悬浮隧道工程设计提供有力的技术支撑。In order to ascertain the impact of pressure pulsations generated by high-speed maglev train passing through the tunnel at 600 km/h on the ear comfort of passengers,the effective clearance area of the magnetic levitation tunnel at 600 km/h was proposed.The compressible navier-stokes equation of viscous fluid and k-εtwo-equation turbulence model were used to study the influence of parameters,such as tunnel clearance area,tunnel length and body dynamic airtight index parameters,on the pressure changes inside and outside the maglev train when the maglev train passes through the tunnel,and then according to the evaluation index of human comfort under the action of alternating pressure,the optimal clearance area of single line tunnel of magnetic levitation train with a speed of 600 km/h under different air tightness indices was obtained.The results can provide technical support for the design of high-speed maglev tunnel.

关 键 词：磁悬浮列车 隧道气动效应 压力变化 隧道净空面积 数值模拟 

分 类 号：U451[建筑科学—桥梁与隧道工程]