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Keywords: rail geometry, railway crossings, vehicle-track interaction, multi-body dynamics, numerical simulation, wheel/rail contact.

Summary

Due to the discontinuity in the rail geometry, high dynamic amplification of the wheel loads occurs in the crossing nose. Damage of the crossing nose has become a serious problem of the Dutch Railways.

This paper concentrates on investigating the effect of rail geometry on the crossing panel. Here the geometry of the crossing nose has been parameterised by defining several key cross-sections located at certain distances from the beginning of the crossing nose. The dynamic interaction between the railway vehicle and the turnout has been simulated using the three-dimensional multi-body package VI-Rail. By adjusting the controlling cross-sections, the turnout geometry could be varied and the dynamic performance of the crossing panel has been obtained accordingly, from which the effect of the geometric parameters have been investigated.

The results show that the width of the nose rail head and the vertical distance between the top of the wing rail and the nose rail have a very important effect on the dynamic behaviour of the crossing. With a wider nose rail head and lower nose at the controlling point, the dynamic forces have been significantly reduced.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 34 A Parametric Study of the Rail Geometry at Railway Crossings C. Wan and V.L. Markine Section of Road and Railway Engineering Faculty of Civil Engineering and Geosciences Delft University of Technology The Netherlands doi:10.4203/ccp.102.34 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Wan, V.L. Markine, "A Parametric Study of the Rail Geometry at Railway Crossings", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 34, 2013. doi:10.4203/ccp.102.34 Keywords: rail geometry, railway crossings, vehicle-track interaction, multi-body dynamics, numerical simulation, wheel/rail contact. Summary Due to the discontinuity in the rail geometry, high dynamic amplification of the wheel loads occurs in the crossing nose. Damage of the crossing nose has become a serious problem of the Dutch Railways. This paper concentrates on investigating the effect of rail geometry on the crossing panel. Here the geometry of the crossing nose has been parameterised by defining several key cross-sections located at certain distances from the beginning of the crossing nose. The dynamic interaction between the railway vehicle and the turnout has been simulated using the three-dimensional multi-body package VI-Rail. By adjusting the controlling cross-sections, the turnout geometry could be varied and the dynamic performance of the crossing panel has been obtained accordingly, from which the effect of the geometric parameters have been investigated. The results show that the width of the nose rail head and the vertical distance between the top of the wing rail and the nose rail have a very important effect on the dynamic behaviour of the crossing. With a wider nose rail head and lower nose at the controlling point, the dynamic forces have been significantly reduced. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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