噪声与振动控制2017，Vol.37Issue(4)：227-230,4.DOI:10.3969/j.issn.1006-1355.2017.04.046
压缩机吸气消声器腔室密封性对传声损失的影响分析
Analysis of the Influence of Leakproofness of Cavities on Sound Transmission Loss in Compressor's Suction Mufflers
孙晓东 1陆海江 1孙慧 1刘超 1张飞1
作者信息
- 1. 青岛万宝压缩机有限公司,山东 青岛 266590
- 折叠
摘要
Abstract
The suction muffler of a compressor is researched. The muffler has 4 cavities, 2 of them are resonant cavities and the others are expanding cavities. The leakages of the cavities are studied by numerical simulation and experimental verification. The LMS Virtual.lab code is used to analyze their sound transmission loss, and the compressor's noise is tested in a semi-anechoic room. Comparative study shows that the leakage between the two resonant cavities can cause both of them to fail, the leakage between the two expanding cavities can cause their sound transmission losses to decrease, and the leakage between expanding cavity and resonant cavity can cause the noise eliminating frequency of the resonant cavity to increase and the noise eliminating frequency of expanding cavity to decrease. If two leak cavities are connected to the inlet and outlet of the muffler respectively, the noise elimination peaks of all the cavities will disappear and the sound transmission loss will be dramatically reduced.关键词
声学/压缩机/吸气消声器/共振腔/扩张腔/泄漏/传声损失Key words
acoustics/compressor/suction muffler/resonant cavity/expanding cavity/leakage/sound transmission loss分类
通用工业技术引用本文复制引用
孙晓东,陆海江,孙慧,刘超,张飞..压缩机吸气消声器腔室密封性对传声损失的影响分析[J].噪声与振动控制,2017,37(4):227-230,4.
