几年来,为巴黎——东南的高速线路未来的运营和车辆设计,多次进行了300公里/小时以上的试验,并且取得了经验,也进行了理论研究。运用这些经验和理论研究结果,能够更好地认识和确定影响转向架运行稳定性的基本参数。转向架临界速度的研究:线性方法这项研究的目的是在转向架稳定性的基础上确定转向架仅在直线及无缺陷的线路上运行时,某些特性参数变化的影响;转向架构架与车体之间的连接是以回转弹性扭矩表示的。所考虑的变化参数如下: (1)一系悬挂装置的纵向和横向刚度 Over the past few years, more than 300 km / h of tests have been conducted for the future operation and vehicle design of the Paris-Southeastern high-speed line, and gained experience and theoretical studies. Using these empirical and theoretical findings, we can better understand and determine the basic parameters that affect the stability of the bogie operation. Study on Critical Speed ​​of Bogies: Linear Method The purpose of this study was to determine the effect of changes in certain characteristic parameters when bogies were operating on straight and defect-free lines on the basis of bogie stability. The connection between the body is expressed in terms of slewing elastic torque. The variation parameters considered are as follows: (1) Longitudinal and transverse stiffness of the first-class suspension