高速动车组动力转向架结构疲劳分析  

Fatigue Analysis of Power Bogie Frame Structure of High Speed EMU

作　　者：杨建明 祖炳洁 闫伟 YANG Jian-ming;ZU Bing-jie;YAN Wei(School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《内燃机与配件》2020年第5期47-49,共3页Internal Combustion Engine & Parts

基　　金：石家庄铁道大学研究生资助项目(YC2019032)。

摘　　要：本文以和谐号CRH380B动车转向架为研究对象,根据UIC615-4动车转向架加载标准,应用Workbench软件对构架首先进行了静强度分析和经典疲劳强度分析,由此确定了相对薄弱的关键节点。然后运用UM多体动力学仿真软件,施加路谱激励、求得构架的垂向和横向动态载荷谱;运用nCode DesignLife疲劳分析软件,将动态载荷谱施于构架的承载位置,进而求得构架的疲劳寿命云图。由于构架的疲劳寿命试验成本昂贵且实验局限性很强,因此本文的仿真计算为动车转向架的疲劳寿命求解提供了一个值得借鉴的方法。In this paper,the harmony CRH380B bullet train bogie was taken as the research object.According to the loading standard of uic615-4 bullet train bogie,the framework was firstly analyzed for static strength and classical fatigue strength by applying Workbench software,thus determining the relatively weak key nodes.Then,UM multi-body dynamics simulation software was used to apply road spectrum excitation and obtain vertical and transverse dynamic load spectra of the framework.Using nCode DesignLife fatigue analysis software,dynamic load spectrum was applied to the bearing position of the framework,and then the fatigue life cloud map of the framework was obtained.Because the fatigue life test cost of the frame is expensive and the experiment limitation is very strong,the simulation calculation in this paper provides a valuable method for solving the fatigue life of the bullet train bogie.

关 键 词：转向架构架 静强度分析 载荷谱 疲劳寿命 

分 类 号：U266[机械工程—车辆工程]