基于垂向积分的侧风作用下列车风荷载数值模拟  

Numerical Simulation of Wind Load on Trains under Crosswind Based on Vertical Integral

作　　者：孟高阳 孟建军[1,2,3,4] 李德仓 刘洋 吕德芳 MENG Gao-yang;MENG Jian-jun;LI De-cang;LIU Yang;LV De-fang;无(School of Mechatronic Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Mechatronics T&R Instiute,Lanzhou Jiaotong University,Lanzhou 730070,China;Engineeni ng Technology Center Information of Lgistics&Transport Equi pment,Lanzhou 730070,China;Gansu Provincial Industry Technology Center of Logistics&Transpont Equi pment,Lanzhou 730070,China)

机构地区：[1]兰州交通大学机电工程学院,兰州730070 [2]兰州交通大学机电技术研究所,兰州730070 [3]甘肃省物流及运输装备信息化工程技术研究中心,兰州730070 [4]甘肃省物流与运输装备行业技术中心,兰州730070

出　　处：《兰州交通大学学报》2023年第3期85-91,共7页Journal of Lanzhou Jiaotong University

基　　金：国家自然科学基金(62063013,72061021);甘肃省科技计划项目(21JR7RA284)。

摘　　要：针对侧风环境下列车所受风荷载问题,基于风场数值模拟方法,结合风沿高程变化的特点,利用垂向积分法建立了一种新的风荷载数值模拟方法,并利用该方法分别计算了列车在三种路基高度下,受侧风作用所产生的横向风荷载、垂向风荷载以及侧滚力矩。计算结果表明,列车所受风荷载主要与列车运行时速、风速、列车车体基本尺寸、转向架与车体连接位置、路基高度等因素相关,相同工况下,车体长度与高度对列车所受风荷载的影响最大。In order to explore the actual situation of wind load on trains in crosswind environment,based on the numerical simulation method of wind field,combined with the characteristics of wind variation along elevation,a new numerical simulation method of wind load is established by using vertical integral method,and the transverse wind load,vertical wind load and side-rolling moment of trains caused by crosswind at three subgrade heights are calculated respectively by using this method.The calculation results show that the wind load on trains is mainly related to the running speed of trains,the wind speed,the basic size of the train body,the connection position between the bogie and the train body,the subgrade height,etc.Under the same operating condition,the length and height of the train body have the greatest influence on the wind load on trains.

关 键 词：侧风环境 列车 风荷载 垂向积分 

分 类 号：U270.1[机械工程—车辆工程]