活塞风对接触线气动性能的影响研究  

Influence of Piston Wind on Contact Wires Aerodynamic Performance

作　　者：王国志[1] 陈荣[1] 邓斌[1] 刘桓龙[1] 张莉娜[1] 

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机车电传动》2012年第6期43-46,共4页Electric Drive for Locomotives

基　　金：铁道部科技研究开发计划重点项目(2008J019)

摘　　要：借助流体动力学分析软件Star-CD,利用动网格技术,建立了不同车速下钝形和流线型列车通过隧道时的二维模型。分析了活塞风特性及其对接触网系统中接触线气动性能的影响情况。研究表明:在6 m高的接触线处,钝形列车形成的活塞风vy的最大值约为流线型的2倍,接触线受到向上的最大抬升力约为流线型的4倍;在其他条件相同时,列车速度每增加10 m/s,接触线受到向上的最大抬升力增加约1倍。By using software Star-CD and dynamic meshing technique, the two-dimensional models of blunt-shaped and streamline-shaped train passing through tunnel with different speed were built. The piston wind property and the influence of the piston wind on catenaries contact wires aerodynamic performance were analyzed. When the height of contact wires was 6 meter, the maximum value of the piston wind vertical components and the lift forces on contact wires formed by the blunt train were twice and quadruple of that formed by the streamline train. When the speed of train increased ten meters per second, the maximum lift force on contact wires would double.

关 键 词：列车 隧道 活塞风 接触线 抬升力 气动性能 

分 类 号：U225[交通运输工程—道路与铁道工程] V211[航空宇航科学与技术—航空宇航推进理论与工程]