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D. Gonzalez Velasco, D. Duhamel, T. Hoang, G. Foret, H. Lenglin, B. Findinier, "Dynamic Analysis of a Ballast-Less Railway Track Through a Periodically Supported Timoshenko Beam and Dynamical Forces Consideration", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 5.13, 2024, doi:10.4203/ccc.7.5.13

Keywords: ballast-less railway track, analytical model, Timoshenko’s beam theory, static and dynamic loads, moving forces, dynamical reponse.

Abstract

This article focuses on the extension of a ballast-less railway track analytical model to compute its dynamic responses due to the application of forces on the structure. Similarly to various existing models, the railway track is represented as a periodically supported Timoshenko beam on individual and independent supports. The supports consist of a two-stage damping spring system with a mass in between. The structure is subjected to mobile forces, representing the passage of trains, which move along the railway track at a constant speed. In existing models, the structure is subjected to static forces, representing trains as a moving mass. Since dynamic forces, resulting from wheel or track defects, can turn into the most important source of loads that can stress the structure, a new formulation of the force is introduced with the aim of taking into account the influence of dynamic forces on the behavior of the railway track. This new approach aims to improve the understanding of the railway track’s response to a load that seeks to be more complete and faithful to real-world phenomena.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 5.13 Dynamic Analysis of a Ballast-Less Railway Track Through a Periodically Supported Timoshenko Beam and Dynamical Forces Consideration D. Gonzalez Velasco¹, D. Duhamel¹, T. Hoang¹, G. Foret¹, H. Lenglin² and B. Findinier² ¹Laboratoire Navier, Ecole Nationale des Ponts et Chaussees, Champs-sur-Marne, France ²GETLINK, Coquelles, France doi:10.4203/ccc.7.5.13 Full Bibliographic Reference for this paper D. Gonzalez Velasco, D. Duhamel, T. Hoang, G. Foret, H. Lenglin, B. Findinier, "Dynamic Analysis of a Ballast-Less Railway Track Through a Periodically Supported Timoshenko Beam and Dynamical Forces Consideration", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 5.13, 2024, doi:10.4203/ccc.7.5.13 Keywords: ballast-less railway track, analytical model, Timoshenko’s beam theory, static and dynamic loads, moving forces, dynamical reponse. Abstract This article focuses on the extension of a ballast-less railway track analytical model to compute its dynamic responses due to the application of forces on the structure. Similarly to various existing models, the railway track is represented as a periodically supported Timoshenko beam on individual and independent supports. The supports consist of a two-stage damping spring system with a mass in between. The structure is subjected to mobile forces, representing the passage of trains, which move along the railway track at a constant speed. In existing models, the structure is subjected to static forces, representing trains as a moving mass. Since dynamic forces, resulting from wheel or track defects, can turn into the most important source of loads that can stress the structure, a new formulation of the force is introduced with the aim of taking into account the influence of dynamic forces on the behavior of the railway track. This new approach aims to improve the understanding of the railway track’s response to a load that seeks to be more complete and faithful to real-world phenomena. download the full-text of this paper (PDF, 12 pages, 528 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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