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D. Bryja, I. Gisterek, A. Popiolek, "A Computational Method for Acceleration Analysis of a Railway Track with a Stiffness Discontinuity", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 132, 2015. doi:10.4203/ccp.108.132

Keywords: railway track, stiffness discontinuities, computational method, track vibrations, vehicle vibrations, vibration accelerations, numerical analysis.

Summary

A special computational method is proposed for numerical analysis of coupled train-track vibrations induced by the passage of a train over a track with a stiffness discontinuity. The main idea of the method consists of computing the so-called "moving point response" of the track, which is a dynamic response at the point being exactly underneath a moving wheelset of the train. The results of extensive numerical analysis are presented in the paper, in order to demonstrate the computing capabilities of the method. A number of presented results enables conclusions to be drawn concerning the cognitive and practical nature of the problem. Numerical analysis, covering displacements, velocities and accelerations of the track and vehicle, demonstrated that at a high speed the passage over the track discontinuity causes unsteady, short-duration rail vibrations characterized by large amplitudes of acceleration. Computational difficulties associated with calculation of accelerations are discussed.

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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: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 132 A Computational Method for Acceleration Analysis of a Railway Track with a Stiffness Discontinuity D. Bryja, I. Gisterek and A. Popiolek Faculty of Civil Engineering, Wroclaw University of Technology, Poland doi:10.4203/ccp.108.132 purchase the full-text of this paper Full Bibliographic Reference for this paper D. Bryja, I. Gisterek, A. Popiolek, "A Computational Method for Acceleration Analysis of a Railway Track with a Stiffness Discontinuity", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 132, 2015. doi:10.4203/ccp.108.132 Keywords: railway track, stiffness discontinuities, computational method, track vibrations, vehicle vibrations, vibration accelerations, numerical analysis. Summary A special computational method is proposed for numerical analysis of coupled train-track vibrations induced by the passage of a train over a track with a stiffness discontinuity. The main idea of the method consists of computing the so-called "moving point response" of the track, which is a dynamic response at the point being exactly underneath a moving wheelset of the train. The results of extensive numerical analysis are presented in the paper, in order to demonstrate the computing capabilities of the method. A number of presented results enables conclusions to be drawn concerning the cognitive and practical nature of the problem. Numerical analysis, covering displacements, velocities and accelerations of the track and vehicle, demonstrated that at a high speed the passage over the track discontinuity causes unsteady, short-duration rail vibrations characterized by large amplitudes of acceleration. Computational difficulties associated with calculation of accelerations are discussed. 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 £75 +P&P)
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