Mechanical Analysis of Rail Pad Subjected to Dynamic Load Caused by Train

摘要：

　　In this study the rail system is simplified as an Euler beam of indefinite length with peri odic elastic supports.The method of integral transform is employed to solve the load responses on the rail pad when the rail is subjected to a moving harmonic load, and analytical solution of fre quency spectrums and integral solution of time-domain responses are obtained.The solution is veri fied by degeneration analysis through the decrement in disposing spacing of rail pad.The frequency spectrums and time-domain responses of train loads are analyzed on the basis of the results of single load.By means of proposed solutions the influences of velocity, stiffness, support spacing and ex citing frequency on the load of fasteners are investigated.

关键词： periodic elastic supports integral transform moving harmonic load rail pad

作者: H.F.Dai G.Y.Gao J.Song L.Zeng

作者单位: Department of Geotechnical Engineering, Tongji University, Shanghai, China Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, China

会议类型: 国际会议

会议名称: 第六届国际环境振动学术研讨会(6th International Symposium on Environmental Vibration)(ISEV2013)

会议地点: 上海

会议语种:英文

页码: 370-378

在线出版日期: 2013-11-08（万方平台首次上网日期，不代表论文的发表时间）