强风沙环境下高速列车受电弓气动特性分析  

Analysis of Aerodynamic Characteristics of High speed Train Pantograph under Strong Wind and Sand Environment

作　　者：陈昊奇 Chen Haoqi(School of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian Liaoning 116028,China)

机构地区：[1]大连交通大学机车车辆工程学院,辽宁大连116028

出　　处：《机械管理开发》2025年第2期50-51,58,共3页Mechanical Management and Development

摘　　要：采用Euler-Lagrange双向耦合方法对强风沙环境下的高速列车受电弓流场与沙粒运动进行数值模拟,研究了不同运行速度、横风速度与沙粒浓度下受电弓的气动特性,分析了压力场、气动力系数、沙粒运动轨迹及质量分布等的变化规律。结果表明:强风沙环境会对受电弓流场产生显著影响,沙粒的撞击会增大受电弓迎风面压力,导致受电弓气动阻力增大。受电弓阻力系数随沙粒浓度的增大而增大,低速工况下阻力系数增大更为显着。The Euler Lagrange bidirectional coupling method was used to numerically simulate the flow field and sand particle motion of high-speed train pantographs in strong wind and sand environments.The aerodynamic characteristics of pantographs under different operating speeds,crosswind speeds,and sand particle concentrations were studied,and the variation laws of pressure field,aerodynamic coefficient,sand particle motion trajectory,and mass distribution were analyzed.The results indicate that a strong sandstorm environment will have a significant impact on the flow field of the pantograph.The impact of sand particles will increase the pressure on the windward side of the pantograph,leading to an increase in aerodynamic resistance of the pantograph.The resistance coefficient of the pantograph increases with the increase of sand particle concentration,and the increase in resistance coefficient is more significant under low-speed conditions.

关 键 词：高速列车 受电弓 风沙环境 离散相模型 气动性能 

分 类 号：TM922[电气工程—电力电子与电力传动]