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Keywords: railway vehicle-bridge system, track irregularities, wheel-rail contact, structural dynamics, vehicle dynamics, finite element analysis.

Summary

In this paper, a formulation and a computational procedure are developed to analyse the dynamic behaviour of a railway vehicle and a bridge structure while interacting. This procedure is implemented in a MATLAB® code. This work is an extension of previous work [1]. The railway vehicle model is based on passenger trains currently in use in metropolitan areas of Brazil. It is a twenty-five degree-of-freedom model composed of a car body, bogies and wheelsets connected by primary and secondary suspension systems. This model is capable of representing bouncing, yawing, pitching and rolling motions. The bridge model chosen represents a prestressed concrete girder bridge which is comprised mainly by two simply-supported beams. The structure is modelled using three-dimensional Euler-Bernoulli frame elements. The system interaction accounts for the contact between wheels and rails, and track irregularities. The wheel-rail contact is based on the theories [2] of Hertz and Kalker Further, vertical and horizontal as well as rotational track irregularities are considered.

Numerical analyses performed show the dynamic behaviour of the vehicle and of the bridge subject to speed variation and track irregularities variations.

References

1: F.L.M. Beghetto, J.E. Abdalla Filho, "Modeling the Dynamic Response of a Railway Bridge and Vehicle System", in B.H.V. Topping, J.M. Adam, F.J. Pallarés, R. Bru, M.L. Romero, (Editors), "Proceedings of the Tenth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, United Kingdom, paper 23, 2010. doi:10.4203/ccp.93.23
2: K.E. Zaazaa, A.L. Schwab, "Review of Joost Kalker's Wheel-Rail Contact Theories and Their Implementation in Multibody Codes", Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2009, San Diego, California, USA, 30 August - 2 September 2009. doi:10.1115/DETC2009-87655

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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: 98 PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 104 Railway Vehicle-Bridge Interaction Considering Wheel-Rail Contact, Track Irregularities and Speed Variations L.F.M. Beghetto¹ and J.E. Abdalla Filho^1,2 ¹Programa de Pós-Graduação em Engenharia Mecânica (PPGEM), Pontifícia Universidade Católica do Paraná (PUCPR), Brazil ²Programa de Pós-Graduação em Engenharia Civil (PPGEC), Universidade Tecnológica Federal do Paraná (UTFPR), Brazil doi:10.4203/ccp.98.104 purchase the full-text of this paper Full Bibliographic Reference for this paper L.F.M. Beghetto, J.E. Abdalla Filho, "Railway Vehicle-Bridge Interaction Considering Wheel-Rail Contact, Track Irregularities and Speed Variations", in J. Pombo, (Editor), "Proceedings of the First International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 104, 2012. doi:10.4203/ccp.98.104 Keywords: railway vehicle-bridge system, track irregularities, wheel-rail contact, structural dynamics, vehicle dynamics, finite element analysis. Summary In this paper, a formulation and a computational procedure are developed to analyse the dynamic behaviour of a railway vehicle and a bridge structure while interacting. This procedure is implemented in a MATLAB® code. This work is an extension of previous work [1]. The railway vehicle model is based on passenger trains currently in use in metropolitan areas of Brazil. It is a twenty-five degree-of-freedom model composed of a car body, bogies and wheelsets connected by primary and secondary suspension systems. This model is capable of representing bouncing, yawing, pitching and rolling motions. The bridge model chosen represents a prestressed concrete girder bridge which is comprised mainly by two simply-supported beams. The structure is modelled using three-dimensional Euler-Bernoulli frame elements. The system interaction accounts for the contact between wheels and rails, and track irregularities. The wheel-rail contact is based on the theories [2] of Hertz and Kalker Further, vertical and horizontal as well as rotational track irregularities are considered. Numerical analyses performed show the dynamic behaviour of the vehicle and of the bridge subject to speed variation and track irregularities variations. References 1 F.L.M. Beghetto, J.E. Abdalla Filho, "Modeling the Dynamic Response of a Railway Bridge and Vehicle System", in B.H.V. Topping, J.M. Adam, F.J. Pallarés, R. Bru, M.L. Romero, (Editors), "Proceedings of the Tenth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, United Kingdom, paper 23, 2010. doi:10.4203/ccp.93.23 2 K.E. Zaazaa, A.L. Schwab, "Review of Joost Kalker's Wheel-Rail Contact Theories and Their Implementation in Multibody Codes", Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2009, San Diego, California, USA, 30 August - 2 September 2009. doi:10.1115/DETC2009-87655 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 £110 +P&P)
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