径向转向架机车动力学特性分析  

Dynamic Performance Analysis of Radial Bogie Locomotive

作　　者：李晓龙[1] 马卫华[1] 罗世辉[1] 刘韦[1] 吕青松[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《机车电传动》2013年第6期28-31,共4页Electric Drive for Locomotives

基　　金：国家自然科学基金青年科学基金资助项目(51005190);霍英东教育基金会资助项目(122014);教育部新世纪优秀人才支持计划项目(NCET-11-0712)

摘　　要：通过理论分析与动力学建模仿真相结合的方法,计算分析了传统机车转向架和径向转向架牵引与导向性能及直线运行稳定性。认为减小轮轨冲角是提高机车曲线通过性能的最有效途径,径向转向架牵引与导向功能达到了良好的协调有利于冲角的减小。同时发现轮对纵向定位刚度只在一定范围内对轮轨冲角影响较大,牵引力作用下较无牵引力作用下轮轨冲角大。By combination of theoretical analysis and dynamic modeling and simulation, locomotive radial bogie performance of traction and steering and hunting stability were analyzed and compm＇ed to traditional locomotive bogie. The results showed that decreasing wheel/rail attack angle was the mostly effective way to enhance curve-passing ability, and the good coordination of traction and steering was beneficial to decrease wheel/rail attack angle. However, the influence of primary longitudinal position stiffness on wheel/rail attack angle was dramati- cally in a certain range, and wheel/rail attack angle always presented larger value under traction conditions than coasting.

关 键 词：径向转向架 轮轨冲角 动力学性能 曲线通过 运行稳定性 

分 类 号：U260.11[机械工程—车辆工程]