Real-Time Wheel-Rail Contact Model and its Roller Rig application

Real-time simulators of the behaviour of a rail vehicle require realistic solutions of the wheel rail contact problem, which can work in a real-time mode. This book presents methods for the development of the real-time wheel-rail contact model and provides the simulation results obtained with dSpace real-time hardware. Besides it, the implementation of the contact model for the development of a real-time model for complex mechatronic system of scaled test rig is presented and may be useful for the further validation of the real-time contact model with experiments onto real scaled test rig. Improvements has been made to the determination of adhesion forces, which are based on the introduction the dependence of sliding-dependent friction coefficient on the rolling velocity and the longitudinal creepage, instead of a standard model of creep forces with a constant static friction coefficient.