轨道交通轮轨噪声研究进展

Review on Wheel/Rail Noise in Rail Transit

轨道交通噪声影响乘客和沿线居民的身心健康,控制轨道交通噪声辐射是当前国家和行业关注的焦点问题之一。轮轨噪声是轨道交通噪声中非常重要的噪声源,是由轮轨表面粗糙度和表面不连续的几何缺陷等激扰产生的轮轨高频振动或曲线轨道产生的轮轨摩擦振动向空中辐射而产生的。研究轨道交通轮轨噪声的产生机理、激扰源和控制方法可促进轨道交通的技术创新与和谐发展,具有重要的理论意义和社会价值。对国内外轨道交通轮轨噪声的研究历史和现状进行综述,主要包括轮轨噪声产生机理、激扰源及控制技术等;并对比了国内和国外的研究状况,指出我国为适应高速铁路和城市轨道交通建设需在减振降噪理论和技术方面进一步重点研究的问题。

Rail transit noise affects the health of passengers in the carriage and residents along the railway,so controlling the railway noise radiation is one of the focuses of the current state and industry.Wheel/Rail noise is a very important noise source of the railway noise,which is caused by high frequency vibration or friction vi-bration of wheel/rail system radiating into the air.The former is caused by wheel/rail surface roughness or dis-continuous geometric defects,the latter occurred at curve track.It has important theoretical significance and social value that researching on the generation mechanism,excitation source and control method,which can promote the technology innovation and harmonious development of rail transit.This paper summarizes the re-search history and current situation of the railway at home and abroad,including the generation mechanism, excitation source and control technology of wheel/rail noise.Then,the domestic and foreign research situations are compared.Finally,this paper points out the key research problems in the following research of vibration/noise reduction theory and technology,in order to adapt to the vibration/noise reduction need of high speed railway and urban rail transit of our country.