Computational Technology Resources - CCC

B. Claudet, D. Duhamel, G. Foret, T. Hoang, J-L. Pochet, F. Sabatier, "Application of the Wave Finite Element method to the computation of the response of a ballastless railway track, comparison with on-site measurements", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 8.1, 2022, doi:10.4203/ccc.1.8.1

Keywords: dynamics, vibration, railway tracks, moving loads, wave finite element, experimental validation.

Abstract

Dynamics of railway tracks have been studied for a long time. Many authors proposed analytical or numerical models to compute the dynamic response of the tracks. Numerical models often use the track periodicity to reduce the size of the problem. Among these numerical methods, the Wave Finite Element (WFE) method was designed to compute the dynamics of periodic structures composed of identical patterns. It was successfully applied t simplified models of railway tracks subjected to different types of loads. In these studies, tracks are modelled by periodically supported beams. In order to give access to stresses and strains at a fine scale, a much finer representation is needed. This article presents a WFE computation of the dynamics of a ballastless railway track subjected to constant moving loads. In the presented computation, the rail, the underlying slab and the support system are all represented in three dimensions. In order to validate this method, the obtained results are compared to experimental strain measurements.

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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: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 8.1 Application of the Wave Finite Element method to the computation of the response of a ballastless railway track, comparison with on-site measurements B. Claudet¹, D. Duhamel¹, G. Foret¹, T. Hoang¹, J-L. Pochet² and F. Sabatier² ¹Navier Laboratory, UMR 8205, Ecole des Ponts ParisTech Champs-sur-Marne, France ²GETLINK, Coquelles, France doi:10.4203/ccc.1.8.1 Full Bibliographic Reference for this paper B. Claudet, D. Duhamel, G. Foret, T. Hoang, J-L. Pochet, F. Sabatier, "Application of the Wave Finite Element method to the computation of the response of a ballastless railway track, comparison with on-site measurements", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 8.1, 2022, doi:10.4203/ccc.1.8.1 Keywords: dynamics, vibration, railway tracks, moving loads, wave finite element, experimental validation. Abstract Dynamics of railway tracks have been studied for a long time. Many authors proposed analytical or numerical models to compute the dynamic response of the tracks. Numerical models often use the track periodicity to reduce the size of the problem. Among these numerical methods, the Wave Finite Element (WFE) method was designed to compute the dynamics of periodic structures composed of identical patterns. It was successfully applied t simplified models of railway tracks subjected to different types of loads. In these studies, tracks are modelled by periodically supported beams. In order to give access to stresses and strains at a fine scale, a much finer representation is needed. This article presents a WFE computation of the dynamics of a ballastless railway track subjected to constant moving loads. In the presented computation, the rail, the underlying slab and the support system are all represented in three dimensions. In order to validate this method, the obtained results are compared to experimental strain measurements. download the full-text of this paper (PDF, 7 pages, 674 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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