摘要
随着运营速度的提高,高速列车引起的气动效应与环境的相互作用变得更加复杂和剧烈,特别是高速列车通过隧道时形成活塞风,其对隧道内附属设施的荷载作用越来越显著。针对高速列车通过隧道时产生的活塞风冲击荷载,以隧道线缆夹具为研究对象,建立三维模型,并对其进行网格划分;应用有限元分析软件ANSYS,对隧道线缆夹具进行静力学分析以及模态分析。结果表明,隧道线缆夹具在强活塞风的作用下,其结构所受等效应力满足材料的最大屈服极限,变形量较小,可在实际工程中推广应用。
As the speed of train operation increases,the interaction between the aerodynamic effect caused by high-speed trains and the environment becomes more complicated and fierce.Particularly,the piston wind formed by the high-speed railway passing through the tunnel exerts a greater load on the ancillary facilities in the tunnel.In this paper,the piston wind impact load generated by the high-speed train passing through the tunnel is taken.The tunnel cable clamp is taken as the research object,and the three-dimensional model is established and meshed.The static analysis and modal analysis of the fixture were carried out using the finite element analysis software ANSYS.The analysis results show that under the action of strong piston wind,the equivalent stress of the tunnel cable clamp meets the maximum yield limit of the material,and the shape variable is small,which can be applied to practical engineering.
作者
夏熙童
盛楚倩
曹从咏
XIA Xitong;SHENG Chuqian;CAO Congyong(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《现代交通技术》
2020年第2期90-93,共4页
Modern Transportation Technology
关键词
高速铁路
屈服极限
模型试验
线缆夹具
有限元分析
high speed railway
yield limit
model test
cable fixture
finite element analysis