新型阻抗复合式消声器性能研究

打开文本图片集

中图分类号：TB535 文献标志码：A

Abstract： To investigate the muffling performance and aerodynamic performance of a novel impedance hybrid mufler， COMSOL Multiphysics finite element analysiswas employed to simulate the internal acoustic field，flow field and noise attenuation characteristics of the muffler. The pressure loss and insertion loss of eight muflers were further analyzed， and the mufling performance was compared. The results show that the proposed impedance hybrid muffler achieves superior muffling effect under low， medium， and high frequency， with particularly outstanding performance at 0～500Hz where its insertion loss increases by 175% to 2000% compared with that of other types of mufflers

Keywords： muffler; pressure loss; insertion loss; air flow velocity

随着现代社会工业迅速发展，设备配套能力逐渐提高，在生产效率不断增长的同时，噪声污染随即产生，其中通风管道噪声更是不可避免地出现在各种应用场合。（剩余6079字）