Directional impulse response of a large cavity inside a sonic crystal

Autores
Spiousas, Ignacio; Eguia, Manuel Camilo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Both temporal and directional responses of a cavity inside a two-dimensional sonic crystal are investigated. The size of the cavity is large compared to the lattice parameter and the wavelength for the frequency range of interest. Hence, a hybrid method to compute the response is proposed, combining multiscattering theory for the calculation of the reflective properties of the sonic crystal with a modified ray-tracing algorithm for the sound propagation within the cavity. The response of this enclosure displays resonances for certain frequency bands that depend on the geometry of the lattice and the cavity. When a full band gap exists in the sonic crystal, rays cannot propagate through the medium and total reflection occurs for all incidence angles, leading to strong resonances with an isotropic intensity field inside the cavity. When only some propagation directions are forbidden, total reflection occurs for certain ranges of incidence angles, and resonances can also be elicited but with a highly anisotropic intensity field. The spectrum of resonances of the cavity is strongly affected by changes in the lattice geometry, suggesting that they can be tailored to some extent, a feature that can lead to potential applications in architectural acoustics.
Fil: Spiousas, Ignacio. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Eguia, Manuel Camilo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Room Acoustics
Multi-scattering theory
Sonic Crystal
Ray Tracing
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/195843
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Directional impulse response of a large cavity inside a sonic crystalSpiousas, IgnacioEguia, Manuel CamiloRoom AcousticsMulti-scattering theorySonic CrystalRay Tracinghttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Both temporal and directional responses of a cavity inside a two-dimensional sonic crystal are investigated. The size of the cavity is large compared to the lattice parameter and the wavelength for the frequency range of interest. Hence, a hybrid method to compute the response is proposed, combining multiscattering theory for the calculation of the reflective properties of the sonic crystal with a modified ray-tracing algorithm for the sound propagation within the cavity. The response of this enclosure displays resonances for certain frequency bands that depend on the geometry of the lattice and the cavity. When a full band gap exists in the sonic crystal, rays cannot propagate through the medium and total reflection occurs for all incidence angles, leading to strong resonances with an isotropic intensity field inside the cavity. When only some propagation directions are forbidden, total reflection occurs for certain ranges of incidence angles, and resonances can also be elicited but with a highly anisotropic intensity field. The spectrum of resonances of the cavity is strongly affected by changes in the lattice geometry, suggesting that they can be tailored to some extent, a feature that can lead to potential applications in architectural acoustics.Fil: Spiousas, Ignacio. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Eguia, Manuel Camilo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaJournal of Animal Ecology2012-10-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/195843Spiousas, Ignacio; Eguia, Manuel Camilo; Directional impulse response of a large cavity inside a sonic crystal; Journal of Animal Ecology; Journal of the Acoustical Society of America; 132; 4; 3-10-2012; 2842-28510001-49661520-8524CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.aip.org/asa/jasa/article/132/4/2842/831311/Directional-impulse-response-of-a-large-cavityinfo:eu-repo/semantics/altIdentifier/doi/10.1121/1.4744946info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:11:44Zoai:ri.conicet.gov.ar:11336/195843instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:11:44.672CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Directional impulse response of a large cavity inside a sonic crystal
title Directional impulse response of a large cavity inside a sonic crystal
spellingShingle Directional impulse response of a large cavity inside a sonic crystal
Spiousas, Ignacio
Room Acoustics
Multi-scattering theory
Sonic Crystal
Ray Tracing
title_short Directional impulse response of a large cavity inside a sonic crystal
title_full Directional impulse response of a large cavity inside a sonic crystal
title_fullStr Directional impulse response of a large cavity inside a sonic crystal
title_full_unstemmed Directional impulse response of a large cavity inside a sonic crystal
title_sort Directional impulse response of a large cavity inside a sonic crystal
dc.creator.none.fl_str_mv Spiousas, Ignacio
Eguia, Manuel Camilo
author Spiousas, Ignacio
author_facet Spiousas, Ignacio
Eguia, Manuel Camilo
author_role author
author2 Eguia, Manuel Camilo
author2_role author
dc.subject.none.fl_str_mv Room Acoustics
Multi-scattering theory
Sonic Crystal
Ray Tracing
topic Room Acoustics
Multi-scattering theory
Sonic Crystal
Ray Tracing
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Both temporal and directional responses of a cavity inside a two-dimensional sonic crystal are investigated. The size of the cavity is large compared to the lattice parameter and the wavelength for the frequency range of interest. Hence, a hybrid method to compute the response is proposed, combining multiscattering theory for the calculation of the reflective properties of the sonic crystal with a modified ray-tracing algorithm for the sound propagation within the cavity. The response of this enclosure displays resonances for certain frequency bands that depend on the geometry of the lattice and the cavity. When a full band gap exists in the sonic crystal, rays cannot propagate through the medium and total reflection occurs for all incidence angles, leading to strong resonances with an isotropic intensity field inside the cavity. When only some propagation directions are forbidden, total reflection occurs for certain ranges of incidence angles, and resonances can also be elicited but with a highly anisotropic intensity field. The spectrum of resonances of the cavity is strongly affected by changes in the lattice geometry, suggesting that they can be tailored to some extent, a feature that can lead to potential applications in architectural acoustics.
Fil: Spiousas, Ignacio. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Eguia, Manuel Camilo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Acústica y Percepción Sonora; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Both temporal and directional responses of a cavity inside a two-dimensional sonic crystal are investigated. The size of the cavity is large compared to the lattice parameter and the wavelength for the frequency range of interest. Hence, a hybrid method to compute the response is proposed, combining multiscattering theory for the calculation of the reflective properties of the sonic crystal with a modified ray-tracing algorithm for the sound propagation within the cavity. The response of this enclosure displays resonances for certain frequency bands that depend on the geometry of the lattice and the cavity. When a full band gap exists in the sonic crystal, rays cannot propagate through the medium and total reflection occurs for all incidence angles, leading to strong resonances with an isotropic intensity field inside the cavity. When only some propagation directions are forbidden, total reflection occurs for certain ranges of incidence angles, and resonances can also be elicited but with a highly anisotropic intensity field. The spectrum of resonances of the cavity is strongly affected by changes in the lattice geometry, suggesting that they can be tailored to some extent, a feature that can lead to potential applications in architectural acoustics.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/195843
Spiousas, Ignacio; Eguia, Manuel Camilo; Directional impulse response of a large cavity inside a sonic crystal; Journal of Animal Ecology; Journal of the Acoustical Society of America; 132; 4; 3-10-2012; 2842-2851
0001-4966
1520-8524
CONICET Digital
CONICET
url http://hdl.handle.net/11336/195843
identifier_str_mv Spiousas, Ignacio; Eguia, Manuel Camilo; Directional impulse response of a large cavity inside a sonic crystal; Journal of Animal Ecology; Journal of the Acoustical Society of America; 132; 4; 3-10-2012; 2842-2851
0001-4966
1520-8524
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.aip.org/asa/jasa/article/132/4/2842/831311/Directional-impulse-response-of-a-large-cavity
info:eu-repo/semantics/altIdentifier/doi/10.1121/1.4744946
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Journal of Animal Ecology
publisher.none.fl_str_mv Journal of Animal Ecology
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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