自导向转向架轴箱纵向定位刚度设计研究  

Research on the Design of Axel-box Longitudinal Stiffness for Self-steering Bogie

作　　者：梁骏宇 周张义[1] 黄运华[1] 杨阳[1] 

机构地区：[1]西南交通大学机械工程学院,成都610031

出　　处：《机械科学与技术》2017年第5期779-786,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：中央高校基本科研业务费专项基金项目(2682014CX030)资助

摘　　要：相比于常规转向架,采用低轴箱纵向定位刚度,大锥度踏面轮对及附加轴间抗剪系统是自导向转向架的关键技术措施。以最佳曲线通过为目标,基于线性稳态解析详细论述Scheffel提出的轮对轴箱纵向定位刚度与其重力刚度间的匹配设计原理。结合我国25 t轴重转向架和轮轨参数,通过进行自导向转向架及其整车的非线性动态曲线通过数值分析,着重对比仿真和解析得到的轮对横移量、摇头角及轴间抗剪系统受力等结果,验证该轴箱纵向定位刚度设计方法的合理性。进一步考虑车辆其他运行性能要求,针对工程实践提出具体应用建议。Compared with conventional bogies, the main technical measures, including low axel-box longitudinalstiffness, wheelsets with high tread conieity and inter-axel shear system, should be used to self-steering bogie forelectric vehicles. Aiming at the best curving, the principles of matching design between axel-box longitudinalstiffness of wheelsets and its gravity stiffness proposed by Scheffel were discussed based on linear steady stateanalysis. The nonlinear analysis on curving simulation for single bogie and whole car were carried out. By comparingthe results of wheelsets transverse displacement, yaw angle and loads of inter-axel shear system obtained fromsimulation and theoretical analysis, the rationality of design method of axel-box longitudinal stiffness was verified.Considering the requirements of other vehicle running stability, the specific application recommendations were givenfor engineering practice.

关 键 词：自导向转向架 轴箱纵向定位刚度 轮对重力刚度 匹配设计 曲线通过 

分 类 号：U270.2[机械工程—车辆工程]