引言轮轨作用力是输入车辆悬挂系统的力,它影响车辆的运行品质、曲线通过能力、踏面磨耗和脱轨安全性等;轮轨作用力也是传递到轨道上的力,可能造成线路结构的破坏等等。因此,轮轨作用力数值的精确测量对于正确了解车辆和轨道的性能是必不可少的。随着轴重的增大和速度的提高,蛇行运动、轮轨磨耗等问题越来越严重,精确测量轮轨作用力也就更加重要、更加急迫了。多年来,各国铁路部门都在这个普遍关心的问题上作出了很大努力,取得了不同程 Wheel and rail force is the force input to the vehicle suspension system, which affects the vehicle running quality, curve through capacity, tread wear and derailment safety; wheel-rail force is also transmitted to the orbit of the force may cause damage to the line structure and many more. Therefore, accurate measurement of wheel / rail force values ​​is essential for proper understanding of vehicle and track performance. With the increase of shaft weight and speed, the problems of meandering and wheel-rail abrasion are more and more serious. It is even more important and precise to measure the wheel-rail force more urgently. Over the years, the railway departments of various countries have made great efforts on this issue of universal concern and have made progress in different routes