Modeling and experimental verification of a new muffler based on the theory of quarter-wavelength tube and the Helmholtz muffler

被引：20

作者：

Wu, Can ^{[1
]}

Chen, Lei ^{[1
]}

Ni, Jing ^{[1
]}

Xu, Jing ^{[1
]}

机构：

[1] Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

SPRINGERPLUS | 2016年 / 5卷

基金：

中国国家自然科学基金;

关键词：

Low frequency noise; Quarter-wavelength tube; Helmholtz muffler; Noise experiment; SPL; NOISE-CONTROL; RESONATORS; PERFORMANCE; DESIGN; PANEL;

D O I：

10.1186/s40064-016-3060-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

To address the problem of low frequency noise of the internal combustion engine, several existing muffler design methods, such as the theory of the quarter-wavelength tube and the Helmholtz muffler, were examined and compared. This paper proposes a new type of muffler design method, which has the advantages of both the quarter-wavelength tube and the Helmholtz muffler. An example is carried out to illustrate the analysis of original signal, the design of the new muffler and the improvement of the in-car noise. The transmission loss of the new muffler is studied by theoretical method and finite element method. The vehicle test of the new muffler demonstrates excellent performance with a wider noise elimination frequency band and smaller radial size.

引用

页数：14

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