| 非织造布结构吸声性能研究 |
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| 引用本文： | 张新安.非织造布结构吸声性能研究[J].西安工程科技学院学报,2006,20(2):135-138. |
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| 作者姓名： | 张新安 |
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| 作者单位： | [1]同济大学声学研究所,上海200092 [2]西安工程科技学院陕西省功能性服装面料重点实验室,陕西西安710048 |
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| 摘 要： | 研究背后有空气层时非织造布吸声特性.分析非织造布吸声系数与声阻抗率随频率的变化规律,由此得出吸声峰值频率的计算公式.传统窗帘吸声极大值频率的计算公式可以作为本文的一个特例.应用穿孔板共振结构吸声理论得出与实测非织造布结构第一吸声峰值频率相近的频率值.
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| 关 键 词： | 非织造布 吸声系数 穿孔板共振结构吸声理论 |
| 文章编号： | 1671-850X(2006)02-0135-04 |
| 修稿时间： | 2006年2月20日 |
Study on the noise absorption by nonwovens |
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| ZHANG Xin-an.Study on the noise absorption by nonwovens[J].Journal of Xi an University of Engineering Science and Technology,2006,20(2):135-138. |
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| Authors: | ZHANG Xin-an |
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| Abstract: | The sound absorption properties of nonwovens backed with cavity is discussed.In this study,the formula for calculating maximum and minimum sound absorption is obtained.The relationship between tested results of nonwovens backed with cavity and the theory of perforated resonance is also discussed and the conclusion is achieved that the first maximum sound absorption coefficient frequency can be obtained by the perforated panel resonance theory. |
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| Keywords: | Nonwovens sound absorption coefficient perforated panel resonance theory |
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