【作者】 侯献军； 田翠翠； 刘志恩； 颜伏伍；

【Author】 HOU Xian-jun,TIAN Cui-cui,LIU Zhi-en,YAN Fu-wu (Wuhan University of Technology,Wuhan 430070,China)

【机构】 武汉理工大学汽车工程学院；

【摘要】 应用微穿孔板吸声体理论,针对某抽气泵设计双层串联微穿孔板消声器,并制作样件进行试验,结果表明安装消声器后,最大噪声值不超过67dB(A)。且在1000—2500Hz频段,噪声下降尤为明显,消声量达到了10—20dB(A),满足了设计的目标,验证了理论与实际的一致性。更多还原

【Abstract】 A double layer microperforated panel muffler of the smoke pump is designed on the basis of the theory of microperforated panel absorber and is made sample to test,the results show that,with installation of the muffler,the maximum noise is less than 67dB(A).The noise is dropped obviously between l,000-2,500Hz and sound deadening capacity reaches to 20dB(A),which satisfies the design objective and verifies the consistency of theory and practice.更多还原