差速器耦合轮对车辆曲线通过性能  

Curving Performance of the Differential-coupled Wheelset Vehicle

作　　者：张济民[1] 寇杰[1] 周和超[1] 周俊华[1] 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《机械工程学报》2017年第10期94-99,共6页Journal of Mechanical Engineering

基　　金：国家自然科学基金(61174214);浦江人才计划(15PJD038;16PJ1409500);中央高校基本科研业务费(10247201571)资助项目

摘　　要：提出在独立旋转车轮横向加装机械差速器实现独立车轮横向机械差速控制。在对差速器耦合轮对车辆系统动力学及对称式差速器力矩分配原理进行理论分析的基础上,建立差速器耦合轮对车辆和刚性轮对车辆模型,通过对比试验所测三向加速度数据与仿真结果,验证了模型的正确性。对两种车辆进行动力学仿真,研究两种车辆通过多种半径曲线时的安全性及轮轨磨耗性能,重点研究通过小半径曲线时的安全性及轮轨磨耗性能。研究结果表明差速器耦合轮对车辆过曲线时不仅有较小的磨耗,曲线通过安全性能也比刚性轮对车辆更优。差速器耦合轮对轨道车辆在小半径曲线线路上运行时,有较好的曲线通过性能,这种特性有利于适应城市地面轨道交通曲线半径小的特点。Adding mechanical differential to independently rotating wheels achieves lateral mechanical differential control to it is put forward. At the base of theoretical analysis to the differential-coupled wheelset vehicle system dynamics and moment distribution of symmetric differential, build the differential-coupled wheelset vehicle model and rigid-wheel vehicle model. According to contrast of the three-direction experiment acceleration data and simulation result, the correctness of the vehicle model is verified. The security and wear work of these two kinds of vehicle when they pass curves is studied by dynamic simulation, especially research the security of negotiating small curve. The result shows that the differential-coupled wheelset vehicle not only has low wear work, but also has better curve passing security than rigid-wheel vehicle. The differential-coupled wheelset vehicle has good curve passing performances while running on small radius curve lines. This kind of character is adaptable to the urban railway lines which has small radius curve.

关 键 词：轨道车辆 差速器 安全性 轮轨磨耗 

分 类 号：U273[机械工程—车辆工程]