Author: Vicente Romero-garcía

0000000000362127

AUTHOR

Vicente Romero-garcía

Slatcow (Spatial Laplace Transform for Complex Wavenumber Recovery) Method for Frequency / Complex Wavenumber Dispersion Relation Recovery

International audience

Acoustic characterization of Silica aerogel clamped plates for perfect absorption purpose

International audience; Silica aerogel has been widely studied as bulk material for its extremely low density and thermal conductivity. Plates or membranes made of this extremely soft materials exhibits interesting properties for sound absorption. A novel signal processing method for the characterization of an acoustic metamaterial made of silica aerogel clamped plates is presented. The acoustic impedance of a silica aerogel clamped plate is derived from the elastic theory for the flexural waves, while the transfer matrix method is used to model reflection and transmission coefficients of a single plate. Experimental results are obtained by using an acoustic impedance tube. The difference b…

research product

Propagation d'ondes acoustiques dans un milieu périodique avec résonateurs

International audience

research product

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