Simulation of train-turnout interaction and validation using field measurements

The dynamic behaviour of different turnouts has been analysed using the finite element model. The vertical rail geometry of the common crossing has been obtained using the image of the crossing nose and the measured rail geometry. The train-turnout interaction has been simulated for three turnouts from the Dutch railway network. The simulation results have been compared with the measurement data obtained from the instrumented crossing nose of the corresponding turnouts. The comparison concentrating on the time history of the vertical accelerations of the crossing nose has shown that the results of the simulations are in good agreement with the measurements. From these results it can be concluded that the model is able to simulate the train-turnout interaction with good accuracy. Also, the possibilities of tuning the model are discussed in the paper.