| 泡状金属控制气流噪声源的实验研究与分析 |
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| 引用本文： | 颜肖龙,吴炳尧,季馨.泡状金属控制气流噪声源的实验研究与分析[J].东南大学学报(自然科学版),1993(Z1). |
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| 作者姓名： | 颜肖龙 吴炳尧 季馨 |
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| 作者单位： | 东南大学机械工程系，东南大学机械工程系，东南大学机械工程系 |
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| 摘 要： | 本文从理论分析与实验两个方面对泡状金属的降噪效果进行了研究,认为泡状金属所具有的三维连通微孔是一种较理想的降低气流噪声的材料.其降噪机理是利用微孔抑制喷射气流的高强噪声的产生,同时使难以消除的中、低频段噪声移向便于消除的高频段.
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| 关 键 词： | 泡状金属 气流噪声源 高速气流 |
Experimental Research and Analysis of Controlling the Source of Gas Noise by Foam Metal |
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| Yah Xiaolong Wu Bmgyao Ji Xin.Experimental Research and Analysis of Controlling the Source of Gas Noise by Foam Metal[J].Journal of Southeast University(Natural Science Edition),1993(Z1). |
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| Authors: | Yah Xiaolong Wu Bmgyao Ji Xin |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | The authors have investigated the effect of reducing noise by foam metal both theoretically and experimentally,and point out that the foam metal with three-dimensional connected minor pores is a pretty good kind of material for reducing gas stream noise.The mechanism of reducing noise is to restrain the production of strong noise from ejected gas stream by minor pores,and to convert the medium and low frequency noise,which is hard to be eliminated,into a high frequency noise which can be eliminated easily. |
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| Keywords: | foam metal source of gas stream noise high velocity gas stream |
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