高速动车组轴箱内置式转向架复合材料板弹簧技术研究及应用

Technical Research and Application of Composite Plate Spring for Axle Box Built-in Bogie of High-speed EMUs

针对轴箱内置式转向架一系悬挂结构横向空间尺寸相对较小的特点,为了保证高速动车组良好的动力学性能,文章设计、开发了新型的一系悬挂系统,采用了转臂定位+上置复合材料板弹簧结构,速度等级可达400km/h。对其进行了仿真分析和台架试验,并将其安装在试验转向架上进行了滚振试验和整车的线路动力学性能试验测试。结果表明,复合材料板弹簧强度和性能指标均达到了设计要求,为高速动车组的轻量化、全包覆减阻设计等提供了新的技术思路。

In view of the relatively small transverse space size of the primary suspension structure of the axle box built-in bogie,this paper designs and develops a new primary suspension system in order to ensure the good dynamic performance of high-speed EMUs,which adopts the structure of rotating arm positioning+top-mounted composite plate spring with speed grade reaching 400 km/h.Simulation analysis and bench test are carried out,and the rolling vibration test and line dynamic performance test of the whole vehicle are carried out with the the system installed on the test bogie.The results show that the strength and performance indexes of composite plate spring meet the design requirements,which provides a new technical concept for lightweight and full-wrap drag-reducing design of high-speed EMUs.