噪声与振动控制2019，Vol.39Issue(5)：8-11,22,5.DOI:10.3969/j.issn.1006-1355.2019.05.002
微穿孔板结构吸声仿真技术研究
Simulation Technology of Sound Absorption of Micro-perforated panel Structures
摘要
Abstract
The acoustic impedance and absorption coefficient of micro-perforated panel structures are analyzed. Three finite element models including micro-pore model, porous media model and built-in perforated panel model are established respectively. The results show that the micro-pore modeling method can promote the theoretical perfection of classical micro-perforated plates. The sound resistance resulted from the porous medium model is relatively small, and the sound absorption peak estimation is insufficient. The built-in perforated plate model can replace the micro-pore model, raise the calculation speed and ensure the reliable results of the sound absorption calculation.关键词
声学/微穿孔板/吸声/有限元/多孔介质Key words
acoustics/micro-perforated plate/sound absorption/finite element/porous media引用本文复制引用
邢拓,李贤徽,盖晓玲,蔡泽农,王芳,关淅文..微穿孔板结构吸声仿真技术研究[J].噪声与振动控制,2019,39(5):8-11,22,5.基金项目
国家自然科学基金资助项目(11604015) （11604015）
北京市自然科学基金资助项目(NO.1172007,1182011) （NO.1172007,1182011）
北京市财政资助项目(PXM2018_178304_000008) （PXM2018_178304_000008）
