轮轨接触力(蠕滑力)实用工程算法探讨

Investigation of the Wheel Rail Contact Forces by Look up Tables

探讨一种计算轮轨之间接触力（蠕滑力）的又快又较准确的实用工程方法；以三维滚动接触理论为基础，根据铁路工程实际，采用与ＤｅＰａｔｅｒ的一阶理论相适应的半线性蠕滑力的计算公式，以二维插值查表法确定接触力（蠕滑力）；该法对于赫兹（Ｈｅｒｔｚ）法向接触力和卡尔克（Ｋａｌｋｅｒ）切向接触力均可使用；以此法为基础用ＭＡＴＬＡＢ语言编制的程序比Ｋａｌｋｅｒ的ＦＡＳＴＳＩＭ程序还要快５倍左右且有较高的计算精度；

The method of use of tables for calculating contact forces between a wheelset and rails is presented. The method is based on Kalker's theory and moreover semi linear formulae are used in keeping with De Pater's first order theory. According to this method,a computer programme is made under the environment of MATLAB language,which is about five times faster than Kalker's programme FASTSIM and is more accurate. The results of the simulation of a real model look very fine.