Acoustic response of a rigid-frame porous medium plate with a periodic set of inclusions.

@article{Groby2009AcousticRO,
  title={Acoustic response of a rigid-frame porous medium plate with a periodic set of inclusions.},
  author={J. P. Groby and Armand Wirgin and L De Ryck and W. Lauriks and Robert P. Gilbert and Y. S. Xu},
  journal={The Journal of the Acoustical Society of America},
  year={2009},
  volume={126 2},
  pages={685-93}
}
The acoustic response of a rigid-frame porous plate with a periodic set of inclusions is investigated by a multipole method. The acoustic properties, in particular, the absorption, of such a structure are then derived and studied. Numerical results together with a modal analysis show that the addition of a periodic set of high-contrast inclusions leads to the excitation of the modes of the plate and to a large increase in the acoustic absorption. 
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