高速铁路运营对转向架技术提出了更高要求，为能设计出性能更优越的动车组转向架，调查了中国高速动车组的线路条件、动车组的车轮踏面磨耗情况，分析轮轨匹配关系；动力学分析中考虑了转臂节点、抗蛇行减振器、空气弹簧等部件的非线性特性，橡胶、减振器等减振元件高低温变化条件下车辆参数的变化，电机弹性悬挂方式等，在实际轮轨匹配关系基础上建立了车辆系统动力学模型。动力学系统仿真选择了最优悬挂参数，结合部件台架测试对悬挂元件进行了工程化设计；为掌握转向架服役周期内关键部件可靠性，对运用动车组转向架进行了大量的动应力测试，系统分析了中国无砟轨道条件下转向架主要承载区域载荷随车辆运营周期、不同气候条件、不同线路条件下的变化趋势，建立了中国高速列车载荷谱体系。通过结构、悬挂、传动、制动、焊接、降噪、轮轨等系统集成，形成高速列车转向架技术体系。%High-speed railway propose higher requirements on the bogie technology,in order to design a super performance of electric multiple unit(EMU)bogie,investigate the line condi-tion of China passenger dedicated railway,and also investigate the wheel tread wear of EMU, use actual measurement rail profile and worn profile tread analysis the matching relationship of wheel and rail. Dynamics analysis consider nonlinear characteristics of box guidance node,anti-hunting damper,air spring and other parts,and consider the parameters changes at different high and low temperature variations,also consider motor elastic suspension mode,basic on above factor,build vehicle dynamics model with actual wheel rail matching relationship,through sys-tem simulation optimal selection of suspension parameters,combined with the test stand con-struction design. In order to grasp the key parts of bogie service period reliability,take a great deal dynamic stress test,use the test data analysis maintenance vehicle operating cycle,different climatic conditions,different line conditions on the ballastless track of China,setup China high-speed train load spectrum. Through system integration of the structure design,suspension,trans-mission,brake,wheel rail noise,structure welding and so on,the high-speed train bogie technol-ogy system was founded.
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