Simplified DEM-Based Modelling and Simulation of the Track Ballast
Author(s): |
Youngwoong Kwon
Jihun Song Nam-Hyoung Lim Seungjun Kim |
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Medium: | journal article |
Language(s): | English |
Published in: | Buildings, 31 December 2023, n. 1, v. 14 |
Page(s): | 77 |
DOI: | 10.3390/buildings14010077 |
Abstract: |
This study proposes a rational method for modelling ballast in tracks based on the discrete element method (DEM) approach. To simulate a ballast consisting of a group of gravels, it is essential to use the discrete element method. The ballast comprises randomly arranged gravels of unspecified shapes, and requires multiple steps and a separate house code for implementing the ballast. In this study, a simplified ballast analysis model using the parallel bond method (PBM) is proposed and verified through comparison with design standards. Additionally, case studies are conducted to investigate the effect of particle size distribution and micromechanical parameters on the simulation results. |
Copyright: | © 2023 by the authors; licensee MDPI, Basel, Switzerland. |
License: | This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met. |
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10753818 - Published on:
14/01/2024 - Last updated on:
07/02/2024