利用钢轨位移测定垂向轮轨力的探究

Exploration the vertical wheel / rail force using rail displacement determination

分别利用连续弹性支撑梁模型和弹性点支撑梁模型,测定了钢轨位移,确定了垂向轮轨力,并通过试验,获取了扣件垂向刚度,在试验线路测试了车辆以不同速度通过测点时的轮轨力和位移数据,通过对比实测值与计算值,证明利用所测钢轨位移在连续弹性梁模型和弹性点支撑模型下求得的垂向轮轨力满足精度要求。

Respectively using the continuous elastic support beam model and elastic point support beam model,this paper tested the rail displacement,determined the vertical wheel / rail force,and through the test,obtained the fastener vertical stiffness,in test line tested the wheel / rail force and displacement data of the vehicle taking different speed through measurement point,by comparing the measured values and calculated values,proved the vertical wheel / rail force met the accuracy requirement by using the measured rail displacement in continuous elastic beam model and elastic support model.