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Utilisation of Video Game Physics Techniques in Real Time Simulation of the Wheel Rail Interface for Predicted Derailemt of Rail Vehicles

Lookup NU author(s): Mike Simpson, Dr William Blewitt, Dr Gary Ushaw, Professor Graham MorganORCiD



We apply real time physics techniques from video game development to the simulation of rail vehicles for rapid analysis of the stability of the wheel rail interface. We introduce a fast simulation algorithm for the wheel rail interface, using a spline-based approach to approximate the gravitational stiffness force. We compare our simulation to results achieved from solving the Nadal equation for a range of rail vehicle speeds. We extend the technique to multiple railway bogies, and use the simulation to gather data on flange collisions. As we use a physics library and techniques designed for real time gaming, our results are achieved considerably more quickly than rail industry standard simulations, allowing for multiple scenarios to be modelled and analysed.

Publication metadata

Author(s): Simpson M, Blewitt W, Ushaw G, Morgan G

Publication type: Report

Publication status: Published

Series Title: School of Computing Science Technical Report Series

Year: 2014

Pages: 8

Print publication date: 01/10/2014

Report Number: 1438

Institution: School of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne