Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/20209 |
Resumo: | Numerical techniques such as the Boundary Element Method, Finite Element Method and Finite Difference Time Domain have been used widely to investigate plane and curved wave-front scattering by rough surfaces. For certain shapes of roughness elements (cylinders, semi-cylinders and ellipsoids) there are semi-analytical alternatives. Here, we present a theory for multiple scattering by cylinders on a hard surface to investigate effects due to different roughness shape, the effects of vacancies and variation of roughness element size on the excess attenuation due to a periodically rough surfaces. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces ProceedingsAcousticsMetasurfacesNoise controlNumerical techniques such as the Boundary Element Method, Finite Element Method and Finite Difference Time Domain have been used widely to investigate plane and curved wave-front scattering by rough surfaces. For certain shapes of roughness elements (cylinders, semi-cylinders and ellipsoids) there are semi-analytical alternatives. Here, we present a theory for multiple scattering by cylinders on a hard surface to investigate effects due to different roughness shape, the effects of vacancies and variation of roughness element size on the excess attenuation due to a periodically rough surfaces.Proceedings of Institute of Acoustics2017-01-30T12:08:43Z2017-01-302016-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/20209http://hdl.handle.net/10174/20209porBerry DL et al (2016) Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings IOA 38 1 126-132dberry@uevora.ptshahram.taherzadeh@open.ac.ukalex.stronach@open.ac.ukk.attenborough@open.ac.uk344Berry, DavidTaherzadeh, ShahramStronach, AlexanderAttenborough, Keithinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:10:08Zoai:dspace.uevora.pt:10174/20209Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:11:50.006980Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
title |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
spellingShingle |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings Berry, David Acoustics Metasurfaces Noise control |
title_short |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
title_full |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
title_fullStr |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
title_full_unstemmed |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
title_sort |
Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings |
author |
Berry, David |
author_facet |
Berry, David Taherzadeh, Shahram Stronach, Alexander Attenborough, Keith |
author_role |
author |
author2 |
Taherzadeh, Shahram Stronach, Alexander Attenborough, Keith |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Berry, David Taherzadeh, Shahram Stronach, Alexander Attenborough, Keith |
dc.subject.por.fl_str_mv |
Acoustics Metasurfaces Noise control |
topic |
Acoustics Metasurfaces Noise control |
description |
Numerical techniques such as the Boundary Element Method, Finite Element Method and Finite Difference Time Domain have been used widely to investigate plane and curved wave-front scattering by rough surfaces. For certain shapes of roughness elements (cylinders, semi-cylinders and ellipsoids) there are semi-analytical alternatives. Here, we present a theory for multiple scattering by cylinders on a hard surface to investigate effects due to different roughness shape, the effects of vacancies and variation of roughness element size on the excess attenuation due to a periodically rough surfaces. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-01T00:00:00Z 2017-01-30T12:08:43Z 2017-01-30 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/20209 http://hdl.handle.net/10174/20209 |
url |
http://hdl.handle.net/10174/20209 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Berry DL et al (2016) Acoustic Propagation over Periodic and Quasi-Period Rough Surfaces Proceedings IOA 38 1 126-132 dberry@uevora.pt shahram.taherzadeh@open.ac.uk alex.stronach@open.ac.uk k.attenborough@open.ac.uk 344 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Proceedings of Institute of Acoustics |
publisher.none.fl_str_mv |
Proceedings of Institute of Acoustics |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136600208179200 |