噪声与振动控制2011，Vol.31Issue(3)：133-135,152,4.DOI:10.3969/j.issn.1006-1355-2011.03.031
往复式压缩机吸气消声器设计
Suction Muffler Design of Reciprocating Compressor
摘要
Abstract
The disadvantages of a compressor muffler are analyzed, and a new scheme is proposed based on the measured noise spectrum at the suction inlet of the compressor. By modifying its inner structure, the transmission loss of the new muffler at the peak frequencies of noise source is to be enhanced. The original and new mufflers are simulated by acoustic finite element method (FEM) to verify the transmission loss. Results of simulations show that the new muffler is effective at the peak frequencies of low-frequency noise source. Finally, the new muffler is tested in the compressor in order to verify its effect of noise reduction. The results show that the amplitude of noise peak at low frequency is reduced obviously and the overall noise level is reduced by 1.4dB (A).关键词
声学/压缩机/有限元方法/消声器/传声损失Key words
acoustics/ compressor/ finite element method/ muffler/ transmission loss分类
机械制造引用本文复制引用
聂永红,程军圣..往复式压缩机吸气消声器设计[J].噪声与振动控制,2011,31(3):133-135,152,4.基金项目
湖南大学汽车车身先进设计制造国家重点实验室自主研究课题(60870002)项目资助 （60870002）
