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长期以来,在研究铁道车辆的垂直振动时都是以简单的方法采取正弦形激扰。其研究结果并不掌握实际出现的所有含义,因为虽然掌握了主振动形式,但并非是轨道实际激扰情况的宽广频谱。因此,需要发展新的适当方法,用来判断运行安全性、舒适性和车辆零件应力的量值(动态轮载荷,振动加速度,振动速度和振动位移),由于受不平轨道的随机激扰,其变化过程也是随机的。但这是完全能用以数学统计学为基础理论的方法来进行研究和计算的。对于铁道车辆垂直运行特性所需要的计
For a long time, sinusoidal disturbance has been taken in a simple way when studying the vertical vibration of railway vehicles. The results of this study do not capture all the implications of what actually appears because, while mastered the primary vibrational form, it is not a broad spectrum of real orbital disturbances. Therefore, new and appropriate methods need to be developed to determine the magnitude of operational safety, comfort and stress of vehicle components (dynamic wheel loads, vibration accelerations, vibration velocities and vibration displacements), due to random perturbations of uneven orbits, their The process of change is also random. However, this can be completely studied and calculated using mathematical statistics as the basic theory. For the rail vehicle vertical operating characteristics required by the meter