| 多孔吸声材料的吸声特性研究 |
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| 引用本文： | 刘鹏辉,杨宜谦,姚京川.多孔吸声材料的吸声特性研究[J].噪声与振动控制,2011,31(2):123-126. |
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| 作者姓名： | 刘鹏辉 杨宜谦 姚京川 |
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| 作者单位： | （ 中国铁道科学研究院 铁道建筑研究所， 北京 100081 ） |
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| 基金项目： | 科学技术部社会公益专项基金项目 |
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| 摘 要： | 多孔吸声材料具有吸声系数高、吸声频带宽等优点，采用多孔吸声材料的圆管理论模型，并对此进行数学编程计算与分析，结合工程实际，研究多孔材料孔隙率、孔径、厚度以及结构因子对多孔材料吸声性能的影响，对实际的设计有一定参考价值。
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| 关 键 词： | 声学 多孔吸声材料 吸声系数 孔隙率 |
| 收稿时间： | 2010-6-2 |
| 修稿时间： | 2010-6-17 |
Study on Absorption Property of Porous Sound-Absorbing Materials |
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| LIU Peng-hui,YANG Yi-qian,YAO Jing-chuan.Study on Absorption Property of Porous Sound-Absorbing Materials[J].Noise and Vibration Control,2011,31(2):123-126. |
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| Authors: | LIU Peng-hui YANG Yi-qian YAO Jing-chuan |
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| Affiliation: | ( Railway Engineering Research Institute, China Academy of Railway Science, Beijing 100081， China ) |
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| Abstract: | Porous sound-absorbing materials are widely used because of its high sound absorption coefficient and wide absorption frequency range. In this paper, a model of sound absorption materials is adopted, and the design parameters are computed. The influence of porosity, diameter of holes, thickness and structure of the material on its sound-absorbing property is analyzed. This work provides a reference for the development of new sound-absorbing material. |
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| Keywords: | acoustics porous sound-absorbing materials absorption coefficient porosity
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