十自由度车-轨耦合仿真分析  

Simulation Analysis of Cehicle Rail Coupling with Ten Degrees of Freedom

作　　者：熊勇刚[1] 龚琦 XIONG Yong-gang;GONG Qi(School of Mechanical Engineering,Hunan University of Technology,Zhuzhou 412007,China)

机构地区：[1]湖南工业大学机械工程学院,株洲412007

出　　处：《内燃机与配件》2022年第3期23-27,共5页Internal Combustion Engine & Parts

基　　金：铁路列车振动对铁路环境的影响及预防措施研究(株科发【2018】61号)。

摘　　要：文章以十自由度车轨耦合模型为例,探究由轨道不平顺所导致车-轨耦合垂向振动的问题,由功率谱密度计算确定了轨道不平顺并以此作为激励源,计算分析车辆与轨道之间的垂向耦合振动响应。通过MATLAB仿真结果图分析得出,轨下的高底不平顺主要影响的是构架和轮对的振动频率,对车体的影响并不大,因此要减轻车-轨系统的振动主要从一系悬挂和轮轨的接触两个方面考虑。Taking the ten degree of freedom vehicle rail coupling model as an example,this paper explores the problem of vehicle rail coupling vertical vibration caused by track irregularity,determines the track irregularity by power spectral density calculation,takes it as the excitation source,and calculates and analyzes the vertical coupling vibration response between vehicle and track.Through the analysis of MATLAB simulation results,it is concluded that the high bottom irregularity under the rail mainly affects the vibration frequency of the frame and wheel set,and has little impact on the vehicle body.Therefore,to reduce the vibration of the vehicle rail system,it is mainly considered from the two aspects of primary suspension and wheel rail contact.

关 键 词：车-轨垂向耦合 轨道不平顺 振动分析 

分 类 号：U461.1[机械工程—车辆工程]