| 金属纤维材料的吸声特性 |
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| 引用本文： | 李献伟
,程耀东
,潘家强.金属纤维材料的吸声特性[J].浙江大学学报(自然科学版 ),1992(Z1). |
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| 作者姓名： | 李献伟 程耀东 潘家强 |
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| 摘 要： | 本文用驻波管法测试了多种规格的碳钢、黄铜、铝纤维等吸声材料的垂直入射吸声系数,频率范围为100～4000Hz;分析讨论了材料的流阻率、厚度、容量、孔隙率、纤维直径及背后空气层对其吸声性能的影响;并对模压金属纤维材料的结构因子作了探讨。
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| 关 键 词： | 金属纤维 吸声系数 流阻率 结构因子 |
The sound absorbing characteristics of metal fibrous materials |
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| Li Xianwei Cheng Yaodang Pan Jiaqing.The sound absorbing characteristics of metal fibrous materials[J].Journal of Zhejiang University(Engineering Science),1992(Z1). |
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| Authors: | Li Xianwei Cheng Yaodang Pan Jiaqing |
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| Affiliation: | Li Xianwei Cheng Yaodang Pan Jiaqing |
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| Abstract: | This paper reviewed the results of a experimental study in which the normal incidence sound absorption coefficients of steel, brass, aluminium fibrous materials were measuredby the Standing-Wave-Ratio method over the frequency range of 100-4000Hz. The effects of various factors as flow-resistance, thickness, density, porosity, fiber diameter and back air space on the sound absorbing characteristics of metal fibrous materials were presented and analysed. Als discussed was the structure factor of molding metal fibrous materials. |
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| Keywords: | metal fiber sound absorption coefficient flow-resistance structure factor |
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