Modal analysis of a drumlike silencer.

  • Lixi Huang
  • Published 2002 in The Journal of the Acoustical Society of America


Low-frequency duct noise is difficult to deal with by passive methods such as porous duct lining. Reactive methods like expansion chamber are rather bulky, while compact resonators are too narrow banded. This study shows that a suitably stretched thin membrane backed by a slender cavity can achieve a satisfactory performance from low to medium frequencies… (More)

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