| 矿用对旋式轴流局部通风机噪声特性实验研究 |
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| 引用本文： | 陈鱼,王晓林,袁小平.矿用对旋式轴流局部通风机噪声特性实验研究[J].噪声与振动控制,2010,30(5):121-124. |
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| 作者姓名： | 陈鱼 王晓林 袁小平 |
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| 作者单位： | 煤炭科学研究总院重庆研究院 |
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| 基金项目： | 煤炭科学研究总院技术创新基金 |
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| 摘 要： | 对四种对旋式轴流局部通风机的噪声特性进行了实验研究，获得了风机噪声频谱曲线和A声级随工况变化曲线，详细分析了离散噪声的频谱特性，发现对旋风机Ⅰ级叶轮通过频率（BPF1）及两级叶片相互作用频率（BIF）对应噪声是对旋风机的主要离散噪声源。这为对旋式轴流通风机的降噪提供了有益参考。
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| 关 键 词： | 对旋风机 噪声 频谱 BPF BIF |
| 收稿时间： | 2009-10-16 |
| 修稿时间： | 2009-11-26 |
Experimental Study on the Noise Characteristics of Local Contra-Rotating Axial Fan Used in Mines |
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| CHEN Yu,WANG Xiao-ling,YUAN Xiao-ping.Experimental Study on the Noise Characteristics of Local Contra-Rotating Axial Fan Used in Mines[J].Noise and Vibration Control,2010,30(5):121-124. |
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| Authors: | CHEN Yu WANG Xiao-ling YUAN Xiao-ping |
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| Affiliation: | (Chongqing Branch,China Coal Research Institute,Chongqing 400037,China) |
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| Abstract: | By means of testing study of the noise characteristics of four kinds of local contra-rotating axial fan for coal-mine,the noise spectra curves and the variation curve of A-weighted sound level corresponding to various operation points are acquired.The discrete noise spectra characteristics are also analyzed in detail.It is found that the noise corresponding to the blade passing frequency（BPF） of the first impeller and the blade interaction frequency（BIF） between the two stage impellers is the primary discrete noise sources of the local contra-rotating axial fan.This work provides a useful reference for decreasing contra-rotating axial fan＇s noise. |
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| Keywords: | Contra-rotating Fan Noise Spectra BPF BIF |
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