论文部分内容阅读
车轴是铁路机车车辆的主要部件,车轮在正常滚动情况下,车轴承受着车辆的载荷和钢轨的反作用力。对于大部分车轴来说,要承受因制动作用而产生的力,而装在机车和动车上的车轴,另外还要承受动力偶的作用。车轴这种组件,基本上被认为是一种在旋转弯曲动载荷作用下的钢制棒材,横向疲劳裂纹产生的可能性与车辆走行公里成正比,突发事故也会使车轴产生裂纹。正是由于这个原因,一些国家铁路为了确保车辆的运用可靠性,在车辆的使用期限
The axles are the main components of the railway rolling stock. The wheels bear the load of the vehicle and the reaction force of the rails under normal rolling conditions. For most of the axles, to withstand the braking force generated by the force, and installed in locomotives and motor vehicles on the axle, in addition to bear the role of dual power. Axle assembly is basically considered to be a steel bar under the action of rotating bending dynamic load. The possibility of transverse fatigue crack generation is proportional to the distance traveled by the vehicle and the accident can cause cracks on the axle. It is precisely for this reason that some national railways in order to ensure the reliability of the operation of the vehicle, the useful life of the vehicle