噪声与振动控制Issue(z1)：121-125,5.DOI:10.3969/j.issn.1006-1335.2013.S1.026
100%低地板列车车内声源识别试验研究
An Experimental Study on Interior Noise Source Identification of 100%Low-floor Railway Train
摘要
Abstract
The 100 % low-floor train is a new type of green urban rail transit. Thus, it has attracted more and more attentions all over the world. But control of the interior noise is more complicated than the other types of trains due to its special car body. Based on field measurements, the characteristics of the interior noise source of the 100%low-floor train are analyzed in this work. The transfer modes of main interior noise sources are identified. Furthermore, counter measures are proposed. The results show that the interior noise is mainly with the frequency of 400~1 250 Hz, which are from vibrations of the floor, roof, vestibule diaphragm, etc. The air-borne sound is the key transfer mode. It is a feasible to reduce the interior noise by controlling the external noise and improving sound insulation of the car body. This work provides a solid basis for further finding interior noise counter measures of the 100%low-floor railway train.关键词
声学/100%低地板/车内噪声/声源识别/空气传声/结构传声/减振降噪Key words
acoustics/100%low-floor/interior noise/noise source identification/air-borne sound/structural-borne sound/noise and vibration control分类
交通工程引用本文复制引用
张捷,肖新标,温泽峰,张玉梅,张春岩,金学松..100%低地板列车车内声源识别试验研究[J].噪声与振动控制,2013,(z1):121-125,5.基金项目
国家863计划(2011AA11A103-2-2/4-2)；教育部创新团队(IRT1178)；牵引动力国家重点实验室自由探索自主研究课题(2011TPL_T05) （2011AA11A103-2-2/4-2）
