| 多孔吸声材料的吸声特性研究 |
| |
| 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. DOI: 10.3969/j.issn.1006-1355-2011.02.029 |
| |
| 作者姓名： | 刘鹏辉 杨宜谦 姚京川 |
| |
| 作者单位： | （ 中国铁道科学研究院 铁道建筑研究所， 北京 100081 ） |
| |
| 基金项目： | 科学技术部社会公益专项基金项目 |
| |
| 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。
|
| 关 键 词： | 声学 多孔吸声材料 吸声系数 孔隙率 |
| 收稿时间： | 2010-06-02 |
| 修稿时间： | 2010-06-17 |
Study on Absorption Property of Porous Sound-Absorbing Materials |
| |
| 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. DOI: 10.3969/j.issn.1006-1355-2011.02.029 |
| |
| Authors: | LIU Peng-hui YANG Yi-qian YAO Jing-chuan |
| |
| Affiliation: | ( Railway Engineering Research Institute, China Academy of Railway Science, Beijing 100081， China ) |
| |
| 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. |
| |
| Keywords: | acoustics porous sound-absorbing materials absorption coefficient porosity
|
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《噪声与振动控制》浏览原始摘要信息 |
|
点击此处可从《噪声与振动控制》下载全文 |
