Discrete Element Method Simulation of Mesomechanics of Railway Ballast during Tamping Process

被引：1
|
作者：
Zhou, Taoyong [1 ]
Hu, Bin [2 ]
Yan, Bo [1 ]
Xu, Ping [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Mech & Elect Engn, Kunming 650500, Peoples R China
[2] China Railway Large Maintenance Machinery Co Ltd, Kunming 650215, Peoples R China
来源：
MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4 | 2013年 / 690-693卷
基金：
中国国家自然科学基金;
关键词：
Railway ballast; Tamping; Mesomechanics; Discrete element method;
D O I：
10.4028/www.scientific.net/AMR.690-693.2726
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Railway ballast tamping operations is employed in order to restore the geometry of railway track distorted by train traffics. The selection of tamping parameter is usually dependent on field trials and practical experience, for lack of theoretical basis. This paper creates discrete element analysis model of railway ballast using the discrete element method, the numerical simulations are carried out to study the mesomechanics of railway ballast during tamping process. We focus on the change of railway ballast compactness and stone ballast interaction force during tamping process. The present study can be helpful for the analysis of the internal mechanism of ballast compaction during tamping process.
引用
收藏
页码：2726 / +
页数：2
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