Control of the stop band of an acoustic double fishnet.
J Acoust Soc Am
; 134(3): 1754-9, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-23967910
ABSTRACT
The acoustic transmittance of two closely spaced solid plates, each perforated with a square array of cylindrical holes, exhibits a band of near-perfect acoustic attenuation originating from hybridization between a resonance in the gap separating the plates and pipe resonances in the holes. Displacement of one plate relative to the other, such that the holes are no longer aligned, or an increase in the plate separation leads to an increased center frequency of the stop band. This ability to easily tune the frequency of the stop band may prove advantageous.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Som
/
Acústica
Idioma:
En
Revista:
J Acoust Soc Am
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Reino Unido