很多年来设计师对于车辆制造中消除线路激扰所引起的共振的要点已经有所了解,但是随着列车速度的提高,要完全满足这个要求是很困难的。在一般的速度下,可以将走行装置的固有频率设计得足够。使车辆能在低于共振速度的区域内运行,但是在高速度时要达到这个要求是比较困难的,特别在横向平面内,即使将车轮踏面锥度从1/20减少到1/40,增加转向架固定轴距等也不能完全消除蛇行 For many years designers have gained an understanding of the main points of resonance mitigation caused by line disturbances in vehicle manufacture, but as the speed of the train increases, it is difficult to fully meet this requirement. At normal speeds, the natural frequencies of the running gear can be designed to be sufficient. It is difficult to achieve this requirement at high speeds, especially in the transversal plane, even if the wheel tread taper is reduced from 1/20 to 1/40 and the steering is increased Frame fixed wheelbase can not completely eliminate the meandering