齿轨车辆牵引电机布置模式及系统耦合振动特性  

The traction motor distribution and system coupling vibration characteristics of rack vehicle

作　　者：陈兆玮 李世辉 袁密奥 陈志辉[2] 杨吉忠[2] CHEN Zhao-wei;LI Shi-hui;YUAN Mi-ao;CHEN Zhi-hui;YANG Ji-zhong(School of Mechanotronics and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China;China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074 [2]中铁二院工程集团有限责任公司,四川成都610031

出　　处：《振动工程学报》2024年第4期612-622,共11页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52008067);四川省科技计划资助项目(2021YFG0211)。

摘　　要：为探究牵引电机布置模式对齿轨车辆动态特性及齿轮-齿轨啮合特性的影响,在考虑齿轮-齿轨非线性啮合行为及其动态时变激扰和轮轨非线性接触关系的条件下,分析了不同电机布置模式下的车辆动力学特性。以Strub齿轨系统为原型,建立了齿轨车辆-轨道垂纵耦合动力学模型,研究了三种不同电机驱动形式对齿轨车辆动态特性的影响规律,并在此基础上提出了适用于齿轨车辆的牵引电机布置方案。研究表明:牵引电机双置工况下齿轮啮合力和垂向、纵向振动加速度更小;其中电机双置时齿轮齿轨啮合力约为电机后置和前置时的50%,平直段齿轮垂向和纵向加速度的最大幅值差分别为4.04和6.01 m/s^(2),爬坡段电机后置时齿轮振动加速度最大,其垂向、纵向加速度幅值比电机双置时大45%;平直线路上电机后置与前置时齿轨车辆的舒适性较好,而爬坡段牵引电机双置模式下更好;鉴于齿轨车辆主要应用于爬坡线路,且爬坡时电机双置齿轨车辆的动力学指标最好,因此建议牵引电机双置为最优布置模式。In order to explore the influence of the traction motor distribution on the dynamic characteristics of rack vehicle and gearrack meshing characteristics,the vehicle dynamics characteristics under different traction motor layout modes are analyzed with the consideration of the gear-rack nonlinear meshing behavior and dynamic time-varying excitation and the wheel-rail nonlinear contact relationship.Based on the Strub system,the coupling dynamics model of rack vehicles is established.The influence of three different motor forms on the dynamic characteristics is studied.On this basis,the layout mode suitable for rack vehicles is proposed.The research shows the gear meshing force and the vertical and longitudinal vibration acceleration are smaller under the dual-mounted traction motor conditions.When the motor is dual-mounted,the meshing force is about 50%of that the motor is rear-mounted and front-mounted.The maximum amplitude difference of the vertical and longitudinal acceleration of the gear is 4.04 m·s^(-2) and 6.01 m·s^(-2) in the straight section.When the motor is rear-mounted the gear vibration acceleration is the largest,and the vertical and longitudinal acceleration amplitudes are 45%larger than the dual-mounted traction motor conditions in the climbing section.The comfort of rack vehicle is better when the motor rear and front-mounted on the straight line,but the dual-mounted is better in the climbing section.In view of the fact that rack vehicle is mainly used in climbing lines,and the dynamic characteristics of rack vehicle with dual-mounted are the best when climbing.Thus,it is recommended that the dual-mounted is the optimal layout mode.

关 键 词：车辆-齿轨耦合动力学 齿轨铁路 牵引电机布置模式 Strub齿轨系统 齿轮齿条啮合 车辆舒适性 

分 类 号：U270.11[机械工程—车辆工程] U234[交通运输工程—载运工具运用工程]