城市轨道交通车辆噪声测试及站台声学评价

Noise Test of Urban Rail Transit Vehicles and Acoustic Evaluation of Platform

城市轨道交通车辆噪声污染越来越成为影响城市环境的突出因素,尤其地铁、现代有轨电车的建设在全国各地普遍开花。该文分析了我国城市轨道车辆噪声的测试限值、测试设备、测试环境,重点围绕国际轨道车辆噪声测试要求,进行了详细介绍。对其中涉及的测试要点如测试时间间隔、传声器位置、测试参数进行了列表比较,使大家能够一目了然。文章最后介绍了轨道车辆进出站时噪声限值要求,给出了站台声学评价的方法。作为第三方检验检测机构,如何更好地为轨道车辆生产方、建设运营方提供好相关噪声测试服务,值得不断研究。

Noise pollution of urban rail transit vehicle is becoming a prominent factor affecting the urban en- vironment,especially the construction of metro or modern tram generally flowering.This paper analyzes test limits of urban rail vehicle noise,test equipment,test environment,and focusing on test requirements of international rail vehicle noise,which are introduced in detail.Test points such as test time interval,locations of microphone and test parameters are listed and compared,so that we can be clear at a glance.The requirement of noise limit for rail transit vehicles is introduced at the end of paper,and the method of acoustic evaluation of platform is presented.As the third test party,how to provide better technical services for both rail vehicle manufacturers and construction or operation of service,it is worth studying.