Simulation of Train-Turnout Interaction and Validation using Field Measurements

Abstract

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.

Analysis of train/turnout vertical interaction using a fast numerical model and validation of that model

“…Figure 1 is a schematic diagram of the vehicle/track model. 12 The railway turnout structure is more complicated than a normal rail track (see Figure 2), and is modelled using a variable rail cross-section and sleepers that vary in length, based on the corresponding design drawings. The detailed modelling approach can be found in Markine et al 1 It should be noted that DARTS_NL uses the symmetry properties displayed by the track in the vertical plane; thus, only half of the track is represented in the model.…”

An Experimental Study on Crossing Nose Damage of Railway Turnouts in The Netherlands

“…The train and turnout interaction has been analysed both numerically and experimentally in a number of research papers being published recently. Various numerical models for analysis of the dynamic behaviour of turnout can be found in [1]- [6]. Experimental analysis of the turnout behaviour is important as well.…”

“…Experimental analysis of the turnout behaviour is important as well. It was investigated in a number of papers usually for the purpose of numerical model validation [6]- [8]. In this paper the results of the measurements in the common crossing of turnouts are presented.…”