| 聚酯机织物吸声性能研究 |
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| 引用本文： | 张新安.聚酯机织物吸声性能研究[J].高分子通报,2006,84(10):52-58. |
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| 作者姓名： | 张新安 |
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| 作者单位： | 同济大学声学研究所,上海,200092;西安工程大学省功能性服装面料重点实验室,西安,710048 |
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| 摘 要： | 分析了聚酯纤维机织物在背后有空气层时的吸声频谱规律以及测试时材料对管内驻波的影响。将传统吸声材料的Zwikker和Costen理论、毛细管吸声理论、微穿孔板吸声理论以及穿孔板共振吸声理论应用于材料特性分析,发现Zwikker和Costen理论可以定性的给出与实测情况相吻合的材料吸声系数随频率的变化规律。穿孔板共振吸声理论可以推导出与实测情况很接近的材料第一吸声峰值频率。另外,毛细管吸声理论和微穿孔板吸声理论不适合于背后有空气层时聚酯纤维织物的吸声情况。
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| 关 键 词： | 聚酯纤维织物 管内驻波 多孔材料Zwikker和Costen理论 毛细管吸声理论 微穿孔板吸声理论 穿孔板共振吸声理论 |
Sound Absorption Properties of Polyester Fabric |
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| ZHANG Xin-an.Sound Absorption Properties of Polyester Fabric[J].Polymer Bulletin,2006,84(10):52-58. |
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| Authors: | ZHANG Xin-an |
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| Institution: | Institute of Acoustics, Tongji University, Shanghai 200092, China |
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| Abstract: | This paper discussed the sound absorption properties of polyester fabric backed with cavity.In our study,different theory was applied to explain the properties of polyester fabric backed with cavity.The conclusion is that the stand wave in the tube will not change their frequency and phase by the absorption of fabric,the Zwikker and Costen theory can give the absorption law at different frequency roughly,the first maximum sound absorption coefficient frequency can be got by the perforated resonance theory.The capillary sound absorption theory and micro-perforated resonance theory is not agree with the practice of polyester fabric. |
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| Keywords: | Polyester fabric Stand wave in the tube Zwikker and Costen theory Perforated resonance theory Capillary sound absorption theory Micro_perforated resonance theory |
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