Computational Technology Resources - CCC

Paper 2.7

Optimising performance of discrete element method modelling of railway tracks

W. Jia, V. Markine and Y. Guo

Faculty of Civil Engineering and Geosciences,Delft University of Technology Delft, Netherlands

doi:10.4203/ccc.3.2.7

W. Jia, V. Markine, Y. Guo, "Optimising performance of discrete element method modelling of railway tracks", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 2.7, 2022, doi:10.4203/ccc.3.2.7

Keywords: discrete element method, ballast, railway, efficiency.

Abstract

Numerical simulations based on Discrete Element Method (DEM) are normally used for railway ballast related researches. However, the efficiency of DEM simulation is very low due to the algorithm and the huge number of elements. Facing to the efficiency problem, a multi-layer ballast track model is introduced. By simulate the lateral resistance tests, the efficiency and accuracy of this model is validated. Results show that this multi-layer model building method largely improves the efficiency, and it can provide accurate data.

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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: 3 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and J. Kruis Paper 2.7 Optimising performance of discrete element method modelling of railway tracks W. Jia, V. Markine and Y. Guo Faculty of Civil Engineering and Geosciences,Delft University of Technology Delft, Netherlands doi:10.4203/ccc.3.2.7 Full Bibliographic Reference for this paper W. Jia, V. Markine, Y. Guo, "Optimising performance of discrete element method modelling of railway tracks", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 2.7, 2022, doi:10.4203/ccc.3.2.7 Keywords: discrete element method, ballast, railway, efficiency. Abstract Numerical simulations based on Discrete Element Method (DEM) are normally used for railway ballast related researches. However, the efficiency of DEM simulation is very low due to the algorithm and the huge number of elements. Facing to the efficiency problem, a multi-layer ballast track model is introduced. By simulate the lateral resistance tests, the efficiency and accuracy of this model is validated. Results show that this multi-layer model building method largely improves the efficiency, and it can provide accurate data. download the full-text of this paper (PDF, 6 pages, 497 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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