一、概况作用在铁道车辆轮对上的动力测定方法,是以测量“轮轨系”个别构件表面机械变形原理(或特殊测力计原理)为基础拟定的,这里变形与作用力成比例是一个必要的条件。测定作用力的应变片可布置在线路、转向架构件上和直接布置在轮对上。测量方法的选择取决于研究目的。测量力的最简单方法(从电路图的角度看)是线路的构件变形法,应变片布置在钢轨的一个或若干个断面上。因为这种方法不能测量长距离线路上作用在轮对上的力,所以 I. Overview The dynamic measurement of wheelsets on railway vehicles is based on the measurement of mechanical deformation principle (or special dynamometer principle) of the individual components of “wheel-rail system”, where the deformation is proportional to the force A necessary condition. The strain gauges that determine the force can be arranged on the line, the bogie component and directly on the wheelset. The choice of measurement method depends on the purpose of the study. The easiest way to measure force (from a circuit diagram point of view) is to wire the component deformation method, which is placed on one or several sections of the rail. Because this method does not measure the forces acting on the wheel pair over long distances,