论文部分内容阅读
列车提速后,轨道的动态质量,特别是曲线地段的水平加速度超限大幅度增加。如何减少曲线水平加速度超限,摸索相关规律成为工务部门一个新课题。1 水平加速度分析 水平加速度与车体所受的横向水平力有直接关系,产生横向水平力的原因有: （1）机车车辆在轨道上蛇行运行,车轮不断撞击轨道,产生的往复周期性的横向水平力; （2）机车车辆通过有未被平衡外轨超高的曲线轨道时,因离心力和向心力不能相互抵消而引起的横向水平力; （3）机车车辆在轨面不平顺的轨道
After the train accelerates, the dynamic quality of the track, especially the horizontal acceleration of the curve section, greatly increases. How to reduce the curve level acceleration overrun, to explore the relevant law has become a new task of the public works department. 1 Horizontal Acceleration Analysis The horizontal acceleration is directly related to the lateral horizontal force suffered by the vehicle body. The horizontal horizontal force is caused by: (1) the rolling stock runs on the track in a meandering manner, the wheel constantly hits the track, resulting in a reciprocating periodic horizontal direction Horizontal force; (2) When locomotives pass through curved rails with unbalanced outer rails, lateral horizontal force due to centrifugal force and centripetal force can not cancel each other out; (3)