压缩机消声器的声学性能仿真分析及改进

摘要:为使压缩机组消声器获得较好的消声性能,建立消声器的声学仿真模型,应用SYSNOISE软件对其声学性能进行分析,得出应用同样方法设计的不同消声器性能差异的原因,并对原消声器的结构进行改进. 试验表明改进后的消声器在主消频带上的性能得到明显改善.
　　关键词:压缩机; 排气消声器; 声学性能; SYSNOISE
　　中图分类号:TB535;TH45;TB115文献标志码:A
　　
　　Acoustic performance simulation and improvement
　　 on compressor’s muffler
　　YANG ShengmEi1,2, LI Mingya1, WANG Li2, WANG Hongzhen1
　　(1.School of Mechanical Eng., Shanghai Jiaotong Univ., Shanghai 200240, China;
　　2.Johnson Controls Building Efficiency Tech.(Wuxi) Co., Ltd., Wuxi Jiangsu 214028, China)
　　Abstract: To improve the performance of the mufflers of compressors, the acoustic simulation model of muffler is built, the acoustic performance is analyzed by SYSNOISE, the reason of performance difference of different mufflers designed by the same method is found, and the original muffler structure is improved. The test shows that the acoustic performance is improved obviously on the main frequency ban

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