Romero García, V.; Sánchez Pérez, JV.; García Raffi, LM. (2011). Analytical model to predict the effect of a finite impedance surface on the propagation properties of 2D Sonic Crystals. Journal of Physics D: Applied Physics. 44:1-12. doi:10.1088/0022-3727/44/26/265501
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/58191
Title:
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Analytical model to predict the effect of a finite impedance surface on the propagation properties of 2D Sonic Crystals
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Author:
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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. Departamento de Física Aplicada - Departament de Física Aplicada
Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada
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Issued date:
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Abstract:
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The use of sonic crystals (SCs) as environmental noise barriers has certain advantages from both the acoustical and the constructive points of view with regard to conventional ones. However, the interaction between the SCs ...[+]
The use of sonic crystals (SCs) as environmental noise barriers has certain advantages from both the acoustical and the constructive points of view with regard to conventional ones. However, the interaction between the SCs and the ground has not been studied yet. In this work we are reporting a semi-analytical model, based on the multiple scattering theory and on the method of images, to study this interaction considering the ground as a finite impedance surface. The results obtained here show that this model could be used to design more effective noise barriers based on SCs because the excess attenuation of the ground could be modelled in order to improve the attenuation properties of the array of scatterers. The results are compared with experimental data and numerical predictions thus finding good agreement between them. © 2011 IOP Publishing Ltd.
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Subjects:
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Analytical model
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Attenuation properties
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Environmental noise
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Excess attenuation
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Experimental data
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Finite impedance
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Method of images
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Multiple-scattering theory
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Noise barriers
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Numerical predictions
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Propagation properties
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Semi-analytical model
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Sonic crystals
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Acoustic impedance
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Acoustic noise measurement
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Crystals
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Mathematical models
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Models
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Scattering
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Two dimensional
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of Physics D: Applied Physics. (issn:
0022-3727
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DOI:
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10.1088/0022-3727/44/26/265501
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Publisher:
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IOP Publishing: Hybrid Open Access
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Publisher version:
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http://dx.doi.org/10.1088/0022-3727/44/26/265501
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Project ID:
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MEC (Spanish Government); FEDER [MAT2009-09438]
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Thanks:
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The authors would like to thank The Open University (UK) for the use of their facilities. This work was supported by the MEC (Spanish Government) and FEDER funds, under Grant No MAT2009-09438.
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Type:
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Artículo
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