关键词: 压缩机, 腔体模态, Virtual Lab, 传递损失

Abstract: By extracting the volume of the internal cavity of the compressor, the cavity modal frequency is calculated, which is used as the key muffler frequency band. The adjustment of the muffler is designed according to the basic muffler structure principle, and the detailed structure of the muffler is optimized by Virtual Lab simulation calculation. Finally, the optimization effect of target frequency noise is determined through the muffler transmission loss test device and compressor noise, so as to achieve the purpose of optimizing the amplitude of the key frequency band of the compressor.

Key words: Compressor, Cavity model, Virtual Lab, Transmission loss