Castiñeira Ibáñez, S.; Rubio Michavila, C.; Romero García, V.; Sánchez Pérez, JV.; García Raffi, LM. (2012). Design, Manufacture and Characterization of an Acoustic Barrier Made of Multi-Phenomena Cylindrical Scatterers Arranged in a Fractal-Based Geometry. Archives of Acoustics. 37(4):455-462. doi:10.2478/v10168-012-0057-9
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/77056
Title:
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Design, Manufacture and Characterization of an Acoustic Barrier Made of Multi-Phenomena Cylindrical Scatterers Arranged in a Fractal-Based Geometry
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Author:
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Castiñeira Ibáñez, Sergio
Rubio Michavila, Constanza
Romero García, Vicente
Sánchez Pérez, Juan Vicente
García Raffi, Luis Miguel
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UPV Unit:
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Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica - Escola Tècnica Superior d'Enginyeria Geodèsica, Cartogràfica i Topogràfica
Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports
Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural
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Issued date:
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Abstract:
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In this work we present the design and the manufacturing processes, as well as the acoustics standard-ization tests, of an acoustic barrier formed by a set of multi-phenomena cylindrical scatterers. Periodic arrangements ...[+]
In this work we present the design and the manufacturing processes, as well as the acoustics standard-ization tests, of an acoustic barrier formed by a set of multi-phenomena cylindrical scatterers. Periodic arrangements of acoustic scatterers embedded in a fluid medium with different physical properties are usually called Sonic Crystals. The multiple scattering of waves inside these structures leads to attenuation
bands related to the periodicity of the structure by means of Bragg scattering. In order to design the acoustic barrier, two strategies have been used: First, the arrangement of scatterers is based on fractal geometries to maximize the Bragg scattering; econd, multi-phenomena scatterers with several noise con-
trol mechanisms, as resonances or absorption, are designed and used to construct the periodic array. The acoustic barrier reported in this work provides a high technological solution in the field of noise control.
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Subjects:
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Acoustic array
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Acoustic attenuation
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Acoustic wave absorption
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Acoustic wave scattering
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Phononic crystals
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Acoustic barrier
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Physical effect of sound
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Fractal-based Sonic Crystal Acoustic Barrier (FSCAB)
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Archives of Acoustics. (issn:
0137-5075
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DOI:
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10.2478/v10168-012-0057-9
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Publisher:
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De Gruyter
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Publisher version:
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https://dx.doi.org/10.2478/v10168-012-0057-9
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Project ID:
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MCI Secretaria de Estado de Investigacion (Spanish government)
FEDER funds MAT2009-09438
Universitat Politecnica de Valencia
UPV CEI-01-11
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Thanks:
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This work was supported by MCI Secretaria de Estado de Investigacion (Spanish government) and the FEDER funds, under Grant No. MAT2009-09438 and by Universitat Politecnica de Valencia (Programa INNOVA 2010) under grant ...[+]
This work was supported by MCI Secretaria de Estado de Investigacion (Spanish government) and the FEDER funds, under Grant No. MAT2009-09438 and by Universitat Politecnica de Valencia (Programa INNOVA 2010) under grant "INNOVA 2010 PDC PANTALLA ACUSTICA". The authors would like to thank Applus+ (LGAI Technological Center S.A.) for their help. V.R.G. is grateful for the support of post-doctoral contracts of the UPV (CEI-01-11).
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Type:
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Artículo
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