chapter  39
6 Pages

A practical method for simulating the evolution of railway wheel polygonalization

ByBo Peng, Simon Iwnicki, Philip Shackleton, Yunshi Zhao, Dabin Cui

The mechanism of railway wheel polygonalization resulting from uneven wear is a challenging problem that has not been resolved perfectly. A practical method for simulating the evolution of wheel polygonalization has been developed by the authors and is presented in this paper with the aim of providing a tool to investigate the mechanism of wheel polygonalization. FASTSIM is combined with the Archard wear model to accomplish the wear calculation. A parametric and automatic simulating procedure has been set up in Matlab with co-simulation in Simpack. The basic feature of the wheel polygonalization development due to three different kinds of excitations are demonstrated respectively by using a simple wheelset/flexible-track model.