Abstract
This study is the first work on a sound absorber that considers the effects of large amplitude vibration and micro-perforation. It has been proved theoretically that the large amplitude vibration effect can enhance the absorption bandwidth of a micro-perforated absorber. Due to the limitation of the sound power that is generated by a loudspeaker, only the results of small amplitude vibration could be obtained in the impedance tube experiment, but this agreed well with the prediction. © Freund Publishing House Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 41-44 |
| Journal | International Journal of Nonlinear Sciences and Numerical Simulation |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 |
Research Keywords
- Large amplitude vibration
- Micro-perforated absorber
- Sound absorption
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