山东科学2012，Vol.25Issue(6)：42-46,5.
微穿孔板消声器结构参数优化研究
Optimization of structure parameters of microperforated panel muffler
摘要
Abstract
We construct the finite element model of the sound field of a muffler, impose the corresponding boundary conditions on the boundary of the model, and calculate the transmission loss of different structure parameters to investigate the impacts of different structure parameters on the performance of a muffler. Computational results show that the microperforated pipe of 20 mm can suppress the noise of 3 - 6 kHz. The length of single tube is nine times of quarter-wavelength and the entire tube has three-stage structure. The holes on the tube are square with diameter of 0.4 mm and opening rate of 4.8%.关键词
消声器/有限元/微穿孔板/传递损失Key words
muffler/finite element method/microperforated panel/transmission loss分类
通用工业技术引用本文复制引用
郝宗睿,周忠海,徐娟,惠超,孙玉婷,牟华..微穿孔板消声器结构参数优化研究[J].山东科学,2012,25(6):42-46,5.基金项目
国家自然科学青年基金 （）
山东省自然科学基金 （）
