噪声与振动控制2019，Vol.39Issue(4)：218-223,6.DOI:10.3969/j.issn.1006-1355.2019.04.040
抗性消声器声学性能分析与结构优化
Acoustic Performance Analysis and Structural Optimization of Resistant Mufflers
谢旭 1刘任权 2赵红飞 2何嘉洋 3李春楠3
作者信息
- 1. 武汉理工大学 汽车工程学院,武汉 430070
- 2. 中汽研(天津)汽车工程研究院有限公司,天津 300300
- 3. 上汽通用五菱股份有限公司,广西 柳州 545000
- 折叠
摘要
Abstract
Aiming at the problem of insufficient noise reduction of a muffler, its acoustic performance is analyzed by means of the AML automatic matching layer method of Virtual. Lab acoustic finite element code, and the frequency domain distribution of the transmission loss of the muffler is obtained. The numerical method is applied to simulate the internal flow field of the muffler, the sound elimination effect of the muffler and the cause of the secondary noise are analyzed. Under the premise of controlling the certain pressure loss, the internal structure of the muffler is optimized, and the optimization goal of improving the muffler performance is achieved. A feasible numerical method is provided to improve the acoustic and aerodynamic performance of the muffler.关键词
声学/抗性消声器/有限元法/数值分析/传递损失Key words
acoustics/ resistance muffler/ finite element method/ numerical method/ transmission loss分类
通用工业技术引用本文复制引用
谢旭,刘任权,赵红飞,何嘉洋,李春楠..抗性消声器声学性能分析与结构优化[J].噪声与振动控制,2019,39(4):218-223,6.
