Simulation of detection on high-speed rail grinding wheel wear based on three-point method

XIAO Xu， DAI Yong， LIU Xue-shi
（Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology， Ministry of Education & Zhejiang Province， Zhejiang University of Technology， Hangzhou 310014， China）

Abstract： Aiming at the problem of high-speed railway rail grinding wheel wear，the rail grinding process and wheel wear detection were studied. Inspection on high-speed rail grinding wheel wear based on three-point method was presented. The mathematical model of the three-point method was created，influencing factors in three-point method of measuring process and measurement scheme was simulated. Simulation results were analyzed to provide a basis for the manufacture of the measurement car and the selection and measurement solutions. Last，two curves that signify the surfaces before and after rail gringing were measured by the simulation of three-point method to validate the feasibility of this method. The results indicate that the linearity testing is feasible and the stabilization of measuring method is obvious.
Key words： high-speed railway； three-point method； rail grinding； wheel wear detection； simulation