Analysis of Vibration Reduction Effect of Steel Spring Floating Slab Track with Finite Elements

摘要：

　　A model for dynamic analyses of a steel spring floating slab track is developed with finite elements.Based on the model, mode analyses are performed with respect to the different kinds of the density, the thickness and the length of the floating slab as well as the isolator stiffness.To comprehemively understand the vibration reduction effects of the steel spring floating slab track, the harmonic response analyses are carried out, and the influence of varying parameters upon the vibra tion reduction rate is investigated.The results show that the stiffness and the damping of the isolator are the governing factors, whereas the stiffness and the damping of the rail pad are generally not im portant.The reasonable values for the steel spring floating slab track should meet the requirements of 50-120 MN/m and ≥30 kN · s/m for rail pad stiffness and damping, 5-10 MN/m and 50-100 kNs/m for isolator stiffness and isolator damping, and 1.25 m for isolator spacing, in order to achieve the satisfactory effect of vibration reduction.

关键词： steel spring floating slab track vibration reduction ground-borne vibration railway

作者: X.Y.Lei C.D.Jiang

作者单位: Engineering Research Center of Railway Environment Vibration and Noise Ministry of Education, East China Jiaotong University, Nanchang, 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: 381-389

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）