噪声与振动控制2016，Vol.36Issue(6)：182-185,4.DOI:10.3969/j.issn.1006-1335.2016.06.036
部分穿孔管消声器声学性能有限元分析
Finite Element Analysis of Acoustic Attenuation Performance of Partially Perforated Tube Silencers
温逸云 1邓兆祥 1张杨1
作者信息
- 1. 重庆大学 汽车工程学院，重庆 400044
- 折叠
摘要
Abstract
Since the perforated pipe silencer has a good acoustic attenuation performance and a low pressure loss, it is used to eliminate the noise of the engine exhaust systems. In this paper, influences of the perforation rate, insertion length, circumferential and axial perforation distributions, inflation lumen diameter etc. on the acoustic attenuation performance of the muffler are studied by means of the finite element method. It is concluded that increasing of the perforation rate and decreasing of the insertion length can cause the low-frequency resonance peak to shift to the high frequency direction;increasing of the perforation rate and decreasing of the inflation lumen diameter can widen the frequency range of the effective noise elimination. While the axial and circumferential distributions of perforation have little influence on acoustic attenuation performance of the muffler.关键词
声学/传递损失/消声性能/部分穿孔消声器/有限元法/结构参数Key words
acoustics/transmission loss/acoustic attenuation performance/partially perforated muffler/finite element method/structural parameters分类
能源科技引用本文复制引用
温逸云,邓兆祥,张杨..部分穿孔管消声器声学性能有限元分析[J].噪声与振动控制,2016,36(6):182-185,4.
