Enhancing the absorption coefficient of a backed rigid frame porous layer by embedding circular periodic inclusions.

@article{Groby2011EnhancingTA,
  title={Enhancing the absorption coefficient of a backed rigid frame porous layer by embedding circular periodic inclusions.},
  author={J. Groby and O. Dazel and A. Duclos and L. Boeckx and L. Kelders},
  journal={The Journal of the Acoustical Society of America},
  year={2011},
  volume={130 6},
  pages={
          3771-80
        }
}
  • J. Groby, O. Dazel, +2 authors L. Kelders
  • Published 2011
  • Materials Science, Medicine
  • The Journal of the Acoustical Society of America
The acoustic properties of a porous sheet of medium static air flow resistivity (around 10,000 N m s(-4)), in which a periodic set of circular inclusions is embedded and which is backed by a rigid plate, are investigated. The inclusions and porous skeleton are assumed motionless. Such a structure behaves like a multi-component diffraction grating. Numerical results show that this structure presents a quasi-total (close to unity) absorption peak below the quarter-wavelength resonance of the… Expand
A mode matching approach for modeling two dimensional porous grating with infinitely rigid or soft inclusions.
Enhancing rigid frame porous layer absorption with three-dimensional periodic irregularities.
Absorption of sound by porous layers with embedded periodic arrays of resonant inclusions.
Acoustic behavior of a rigidly backed poroelastic layer with periodic resonant inclusions by a multiple scattering approach.
Using simple shape three-dimensional rigid inclusions to enhance porous layer absorption.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 27 REFERENCES
Acoustic response of a rigid-frame porous medium plate with a periodic set of inclusions.
Acoustic wave propagation in double porosity media.
  • X. Olny, C. Boutin
  • Materials Science, Medicine
  • The Journal of the Acoustical Society of America
  • 2003
Multiple scattering of acoustic waves and porous absorbing media.
...
1
2
3
...