高速铁路板式轨道结构参数对轮轨噪声的影响  

Structure parameter influence of slab track for high speed railway on wheel-rail noise

作　　者：徐志胜[1] 翟婉明[2] 

机构地区：[1]铁道第二勘察设计院环境工程研究院,四川成都610031 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《交通运输工程学报》2006年第4期23-26,共4页Journal of Traffic and Transportation Engineering

基　　金：高等学校博士学科点专项科研基金项目(20030613011);教育部创新团队发展计划项目(LRT0452);铁道部科技研究开发计划项目(2005Z004)

摘　　要：为了降低轮轨噪声,利用轮轨噪声预测模型与软件STTIN(Simulation of Train/Track In-teraction and Noise),分析了板式轨道结构参数对轮轨噪声的影响。发现以下规律:轨下胶垫刚度大于200 MN.m-1时,轮轨噪声水平显著上升;当轨下胶垫阻尼值偏离100 kN.s.m-1时,噪声将增大;改变板下支承刚度,轮轨噪声基本不变化;增加轨道板质量,轮轨噪声降低。结果表明,轨下胶垫的刚度与阻尼是影响轮轨噪声的主要因素,而轨道板质量次之,轨道板下支承刚度对轮轨噪声基本无影响。In order to decrease wheel-rail noise, wheel-rail noise predicting model and STTIN software were put forward, the structure parameter influence of slab track on wheel-rail noise was analyzed. It is pointed that wheel-rail noise rises while the stiffness of rail pad is higher than 200 MN· m^-1 , and the damping of rail pad drifts off the value of 100 kN·s·m^-1 , wheel-rail noise is almost indeclinable when modifying the stiffness of slab pad, but it decreases when increasing the mass of slab. The result shows that the Stiffness and damping of rail pad are the key factors influencing wheel-rail noise, the mass of slab is the secondary factor, and the stiffness of slab pad primarily has no influence on wheel-rail noise. 3 tabs, 3 figs, 9 refs.

关 键 词：铁道工程 高速铁路 板式轨道 结构参数 轮轨噪声 

分 类 号：U213.242[交通运输工程—道路与铁道工程]