| 声学聚焦镜测量汽车车外风噪声分布 |
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| 引用本文： | 钱军民,李旭祥. 声学聚焦镜测量汽车车外风噪声分布[J]. 噪声与振动控制, 2000, 0(2): 44-46,43 |
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| 作者姓名： | 钱军民 李旭祥 |
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| 作者单位： | 西安交通大学环境与化学工程学院,西安,710049 |
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| 摘 要： | 本文介绍了声学聚焦镜在整车风洞内汽车车外风噪声测量中的应用。声学聚焦镜能以较高的精度测量不同风速下的车外噪声分布 ,辩识主要噪声源区。本文还介绍了风洞内气流对声学聚焦镜空间分辨率及增益的影响。
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| 关 键 词： | 风噪声 声学聚焦镜 风洞 噪声测量 汽车 |
The measurement of distribution of extericr wind noise of aut omobile by acoustic mirror |
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| Yu Wuzhou,Mao Dongxing. The measurement of distribution of extericr wind noise of aut omobile by acoustic mirror[J]. Noise and Vibration Control, 2000, 0(2): 44-46,43 |
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| Authors: | Yu Wuzhou Mao Dongxing |
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| Abstract: | the application of acoustic mirror in the aerodynamic noise of automobile in wind tunnel is introduced in this paper.The distribution of wind noise of automobile can be obtained quite precisely under different wind speed.The effect of flow in wind turnel to the spatial resolution and gain of acoustic mirror is also presented. |
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| Keywords: | Acoustic measurement wind tunnel win noise aerodynamic noise |
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