Prediction of wheel-rail contact forces based on a heavy haul locomotive dynamic inverse modelling

A prediction model based on the acceleration measurement on a locomotive has been developed to evaluate wheel-rail contact dynamic forces. In order to verify the prediction model, a comprehensive wagon model has been generated using Gensys software. The accelerations on the car body and the bogies from the Gensys simulations due to a typical type of track geometry irregularity were used as the inputs of the prediction model. The reasonable agreement has been achieved through the comparison between the predicted and simulated primary and secondary suspension forces and wheel-rail contact dynamic forces.