| 高速铁路动车组列车的噪声特性 |
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| 引用本文： | 俞悟周,王晨,毛东兴,王佐民,姜在秀,万雯.高速铁路动车组列车的噪声特性[J].环境污染与防治,2009,31(1). |
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| 作者姓名： | 俞悟周 王晨 毛东兴 王佐民 姜在秀 万雯 |
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| 作者单位： | 1. 上海同济大学声学研究所,上海,200092
2. 上海铁路城市轨道交通设计研究院,上海,200070 |
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| 摘 要： | 测量了车速达250 km/h的高速铁路动车组列车不同距离、不同高度处的噪声,分析了其时间、频谱及空间分布特性,并与普通客运列车比较.结果表明,动车组列车噪声表现为较强的脉冲性,频谱较宽,为2 500 Hz内的宽频噪声,200 Hz以下的低频成分很强;不同高度处最大声压级随距离的衰减规律基本类似,但不同高度处频谱不同.
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| 关 键 词： | 高速铁路 动车组 噪声 噪声测量 |
Noise characteristics of China railway high-speed |
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| Yu Wuzhou,Wang Chen,Mao Dongxing,Wang Zuomin,Jiang Zaixiu,Wan Wen.Noise characteristics of China railway high-speed[J].Environmental Pollution & Control,2009,31(1). |
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| Authors: | Yu Wuzhou Wang Chen Mao Dongxing Wang Zuomin Jiang Zaixiu Wan Wen |
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| Institution: | 1.Institute of Acoustics;Tongji University;Shanghai 200092;2.Shanghai Railway Urban Rail Trail Transit Design & Research Institute;Shanghai 200070 |
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| Abstract: | Noise levels of China railway high-speed (CRH) operating at 250 km/h were monitored and measured simultaneously at 12 points located at 4 distances (30,50,70 and 90 m) from the rail center and 3 heights (0,3 and 6 m above the rail). The CRH noise characteristics (time and frequency profiles) were analyzed and compared with the same of an ordinary train operating at 120 km/h. The noise of CRH was impulsive with a wide frequency range up to 2 500 Hz. Below 200 Hz,noise of CRH was strong. The noise levels decl... |
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| Keywords: | high speed train China railway high-speed noise noise measurement |
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