摘要
针对600 km/h高速磁浮列车全速过站时站台乘客安全风险缺乏研究的问题,本文采用三维瞬态可压缩IDDES方法和k-ωSST湍流模型,结合滑移网格技术,构建包含三编组列车、T型轨道及9个假人站台的全尺寸数值模型,系统揭示列车风对乘客的气动载荷影响机制。研究表明:(1)列车过站时站台区域气压剧烈波动(峰值超2 000 Pa),导致乘客承受双向瞬态冲击力(X方向最高1 300 N,Y方向最高-1 300 N),存在失稳跌落风险;(2)提出1.5 m高屏蔽门优化方案,使最近乘客冲击力降低46%(X向)和62%(Y向),显著改善流场压力分布与风速强度(站台流速从80 m/s降至40 m/s)。
To address the platform passenger safety risks during 600 km/h maglev trains passing stations at full speed,this study innovatively employs a three-dimensional transient compressible IDDES method with the k-ωSST turbulence model,with the help of sliding mesh technology,to establish a full-scale numerical model that integrates a three-carriage train,T-shaped track,and nine platform mannequins to systematically reveal-for the first time-the aerodynamic load mechanism of train-induced wind on passengers.Results show that:(1)Severe pressure fluctuations(>2,000 Pa peak)occur on the platform during train passage,subjecting passengers to bidirectional transient impact forces(up to 1,300 N in X-direction and-1,300 N in Y-direction),posing fall risks;(2)A 1.5 m high platform screen door optimization reduced impact forces on the nearest passenger by 46%(X-direction)and 62%(Y-direction),while significantly mitigating flow-field pressure extremes and wind speed intensity(platform airflow decreased from 80 m/s to 40 m/s).This research addresses the knowledge gap in ultra-high-speed maglev stationpassing aerodynamics and provides critical theoretical foundations for station safety design.
作者
韩思远
徐刚
李文静
Han Siyuan;Xu Gang;Li Wenjing(Department of Technologies,CRRC Industrial Research Institute(Qingdao)Co.,Ltd.,Shandong,Qingdao 266109,China;Engineering Research Center of Railway Industry on Advanced Structural Materials,National Innovation Center(Qingdao)of High Speed Train,Shandong,Qingdao 266000,China)
出处
《铁道技术标准(中英文)》
2025年第6期11-18,28,共9页
Railway Technical Standard(Chinese & English)
基金
国家重点研发计划(2023YFB4302500)。
关键词
高速磁浮列车
气动设计
列车过站
列车风
乘客安全
high speed maglev train
aerodynamic design
train passing station
train wind
passenger safety
