轨道交通高性能减振道床系统减振效果分析  

Analysis of High Performance Vibration Reduction Slab System in Vibration Reduction

作　　者：李元康[1] 王安斌[1] 张喆玉[1] 王志强[1] 徐宁[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2016年第3期13-17,共5页Development and Application of Materials

基　　金：洛阳市重大科技专项(1401060A)

摘　　要：为评估地铁低速行驶时高性能减振道床相对于普通道床的减振效果,通过有限元仿真和对郑州地铁2号线进行在线测试,对新型组合式道床系统进行动态响应分析研究。结果表明,相对于普通道床,组合道床隔振频率较低,而pinned-pinned频率基本一致;对于道床基础振动,组合道床相对普通道床垂向最大减振16.8 dB,横向最大减振9.6 dB。In order to evaluate the vibration reduction effect of the high performance vibration reduction slab in actual situations, researches on dynamic responses of a new combined slab track system were made through the finite element simulation and on- site tests on Zhengzhou Metro Line 2. The results suggest that compared with general monolithic slab system, the combined slab track system has a lower vibration frequency, but their pinned-pinned vibration frequencies keep consistent;as for the intermedi- ate vibration from the track bed, the maximum vertical vibration of the combined slab track system can be reduced by 16. 8 dB and maximum transverse vibration can be reduced by 9.6 dB.

关 键 词：道床系统 有限元 pinned-pinned频率 减振性能 

分 类 号：U216.9[交通运输工程—道路与铁道工程]