新型阻抗復(fù)合式消聲器性能研究

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中圖分類號(hào)：TB535 文獻(xiàn)標(biāo)志碼：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

隨著現(xiàn)代社會(huì)工業(yè)迅速發(fā)展，設(shè)備配套能力逐漸提高，在生產(chǎn)效率不斷增長的同時(shí)，噪聲污染隨即產(chǎn)生，其中通風(fēng)管道噪聲更是不可避免地出現(xiàn)在各種應(yīng)用場合。（剩余6079字）