| 关于微穿孔板吸声体频带宽度极限的讨论 |
| |
| 引用本文： | 焦风雷,刘克,丁辉.关于微穿孔板吸声体频带宽度极限的讨论[J].应用声学,2001,20(6):36-40. |
| |
| 作者姓名： | 焦风雷 刘克 丁辉 |
| |
| 作者单位： | 1. 中科院声学研究所,
2. 北京劳动保护科学研究所, |
| |
| 摘 要： | 依据马大猷教授的微穿孔板吸声体准确理论，利用计算机辅助设计对于该结构频带宽度极限情况从理论上进行了讨论，把极限频宽和最大吸声系数的制约关系量化，并得到此情况下应用于低频或高频环境孔径的选用范围，以及此情况下板厚和穿孔率与传统观念不同的特点。以上分析结果以及所提供的结构参数为宽频带微穿孔板的具体设计提供有价值的参考。
|
| 关 键 词： | 微穿孔板吸声体 极限频带宽度 吸声结构 准确理论 设计 |
Discussions on the utmost frequency band of a microperforated- panel absorber |
| |
| JIAO Fenglei,LIU Ke and DING Hui.Discussions on the utmost frequency band of a microperforated- panel absorber[J].Applied Acoustics,2001,20(6):36-40. |
| |
| Authors: | JIAO Fenglei LIU Ke and DING Hui |
| |
| Institution: | Beijing municipal institute of labour protection, Beijing 100054;Beijing municipal institute of labour protection, Beijing 100054;Beijing municipal institute of labour protection, Beijing 100054 |
| |
| Abstract: | Based on Prof. Maa Dah-You's general theory of the microperforated panel (MPP) absorber, the discussions on the utmost frequency band of MPP are made in this paper, including the relation between the utmost frequency band and the maximal absorpti on coefficient. Selectable diameters of perforations of MPP applicable to inter-mediate or lower frequency are offered. We propose that the choosing of panel thickness and percentage of perforated area of MPP can be quite different from that in the tradi-tional design. |
| |
| Keywords: | Microperfortaed-panel absorber Utmost frequency band |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用声学》浏览原始摘要信息 |
| 点击此处可从《应用声学》下载免费的PDF全文 |
