ABSTRACT
A numerical method has been developed by which track deformations and the dynamic forces acting between train wheels and rails may be simulated. The method allows for calculation of deflections, accelerations and sectional forces in various track components. The computational method may serve as a tool for optimizing the track with reference to life of track components. A mathematical model aiming at describing the train/track interaction problem has been developed. The model comprises a moving railway bogie on a track. In order to verify the mathematical model described and the numerical solution technique employed, full-scale experiments using a train equipped with instrumented wheelsets have been performed at a newly built part of the Swedish West Coast line south of Varberg. To determine some of the track model parameters, the track at the test site was harmonically excited by use of a measurement car from Banverket.
