Discrete Element Method Analysis of Mechanical Properties of Railway Ballast during Tamping Process under Different Vibration Frequency

摘要：

　　Railway ballast tamping operations is an important work in the line maintenance and repair operations, 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 mechanical properties of railway ballast during tamping process.We focus on the influence of vibration frequency during tamping process; an optimal vibration frequency of the simulation analysis is obtained and compared with the recommended vibration frequency of Plasser & Theurer Company, it is found that the two vibration frequencies accord.This result verifies the correct validity of the discrete element analysis model of railway ballast during tamping process.

关键词： Railway ballast Tamping Vibration frequency Discrete element method

作者: Zhou Taoyong Hu Bin Wang Xuejun Yan Bo

作者单位: Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunmin China Railway Large Maintenance Machinery Co.,Ltd.Kunming,Kunming 650215,China

会议类型: 国际会议

会议名称: the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))

会议地点: 桂林

会议语种:英文

页码: 369-372

在线出版日期: 2012-08-01（万方平台首次上网日期，不代表论文的发表时间）