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轮轨振动与噪声辐射研究

The Research on Wheel and Track Vibration and Noise Radiation

【作者】 黄涛

【导师】 陈大跃;

【作者基本信息】 上海交通大学 , 精密仪器与机械, 2007, 硕士

【摘要】 随着城市交通矛盾的日益突出,轨道交通以其快速、准时、运量大的优点正被各大城市所接受,发展城市轨道交通的客运方案已经在国内得到普遍的认同。由于轨道交通一般都在人口稠密地带运行,列车运行对环境的影响越来越引起人们的关注,地面轮轨运行时的振动噪声和地下铁道产生的振动对建筑物的影响又是世界各国普遍重视的一个问题。地铁列车运营时产生的振动和噪声,均来自于轮轨系统中各结构不同频率的振动。这些振动,一部分通过空气或周边结构物的反射,以噪声的形式扩散;另一部分,主要是低频振动,则通过轨道结构向轨下基础及周边建筑物传播,对地面建筑物产生影响。当前对地铁轨道采取的减振措施主要有缓冲减振和隔离减振,缓冲减振通常是把钢轨、扣件和轨枕等用弹性体来缓冲衰减车辆运行传来的振动;隔离减振是把轨道道床与结构基础用弹性体整体隔离车辆运行传来的振动。其中隔离减振的浮置板结构在现今此类减振结构中效果最明显,浮置板减振结构的参数设计对地铁减振水平产生很大影响。浮置板各减振层的刚度、阻尼和轨道的固有频率将是浮置板减振效果的关键。由于钢轨结构庞大,列车

【Abstract】 City expansion and economics development make the public traffic capacity can’t afford so many people. Urban rail transit system offer the way to solve the traffic jam because it is speedy ,on time and it’s big capacity. Many city put the Urban rail transit system on the first place. Urban rail transit system run in the crowded district, many people influenced by The vibration and noise subway and light railway. Surface railway make noise disturb people living and meanwhile the subway make vibration will destroy building if it enough harder. How to solve the environment problem bring by Urban rail transit system lead more research focus on it in the world.The wheel-track vibration and noise origin from the different frequencies vibration of components. Some of these vibration spread in air and reflect by structure objects form noise, another action on track structure transfer to ground form Seismic Wave effect on building. Currently some means are used to control

【关键词】 浮置板轨道隔振器振动噪声
【Key words】 Floating Track SlabVibration IsolatorVibration Noise
  • 【分类号】TB53
  • 【被引频次】15
  • 【下载频次】779
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