噪声与振动控制Issue(5)：35-38,4.DOI:10.3969/j.issn.1006-1335.2015.05.006
多孔材料和微穿孔板复合吸声结构研究
Study on the Composite Sound Absorber Made up of Porous Materials and MPP
裴春明 1周兵 1李登科 2常道庆2
作者信息
- 1. 中国电力科学研究院，武汉 430074
- 2. 中国科学院声学研究所 噪声与振动重点实验室，北京 100190
- 折叠
摘要
Abstract
This paper studied how to widen the sound absorption bandwidth of microperforated panel (MPP) with porous materials. The MPP was chosen to absorb the low frequency noise, while the porous materials were selected to enhance the sound absorption effect in the middle and high frequency range. The methods of calculation and measurement of the sound absorption coefficient were presented. The measurement results had a good agreement with the prediction results. The comparison indicated that when the porous material is put in front of the MPP with an air gap between them, the sound absorbing characteristics of the MPP can be greatly improved.关键词
声学/微穿孔板/多孔材料/复合吸声结构Key words
acoustics/MPP/porous sound absorbing materials/compound sound absorber分类
建筑与水利引用本文复制引用
裴春明,周兵,李登科,常道庆..多孔材料和微穿孔板复合吸声结构研究[J].噪声与振动控制,2015,(5):35-38,4.
