Sound transmission through plates perforated with two periodic subwavelength hole arrays

Autores UPV
Año
Revista JOURNAL OF PHYSICS-CONDENSED MATTER

Abstract

Theoretical results on sound transmission through plates perforated with compound periodic hole arrays are presented. Calculations are obtained by means of a model under the rigid-solid assumption, which is thoroughly derived. A complex interplay between resonant transmission peaks, resonance interference, and Wood anomaly minima is observed. At high frequencies the resonant peaks overcome the Wood anomaly dips, leading to a different behaviour when compared with simple hole arrays. © 2011 IOP Publishing Ltd.