Listar por palabra clave "Sonic crystals"
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Listar por palabra clave "Sonic crystals"
Mostrando ítems 1-20 de 30
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Cebrecos Ruiz, Alejandro; Romero García, Vicente; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Botey, M.; Herrero, R.; Cheng, Y. C.; Staliünas, Kestutis (IOP Publishing: Hybrid Open Access, 2015-01-21)We propose a periodic structure that behaves as a fluid fluid composite for sound waves, where the building blocks are clusters of rigid scatterers. Such building-blocks are penetrable for acoustic waves, and their properties ... -
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel (IOP Publishing: Hybrid Open Access, 2011)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 ... -
García San Félix, Pablo (Universitat Politècnica de València, 2023-09-01)[ES] Una de las soluciones para el control del ruido en su transmisión viene dada por la utilización de pantallas acústicas. Una pantalla acústica clásica consiste básicamente en un medio continuo de material rígido que ... -
García-Raffi, L. M.; Salmerón-Contreras, L.J.; Herrero-Durá, Iván; Picó Vila, Rubén; Redondo, Javier; Sánchez Morcillo, Víctor José; Staliunas, Kestutis; Adkins, N.J.; Cebrecos, Alejandro; Jimenez, Noe; Romero García, Vicente (Elsevier, 2018-02)[EN] The broadband reduction of the specular reflections by sonic crystals (SCs) is theoretically and experimentally reported in this work. The analysed system consists of a sound source radiating a SC made of acoustically ... -
García Chocano, Víctor Manuel; Cabrera García, Suitberto; Sánchez-Dehesa Moreno-Cid, José (American Institute of Physics, 2012-10-29)Absorption of broadband noise by sonic crystals consisting of microperforated cylindrical shells is proposed and experimentally demonstrated. The theoretical study has been performed in the framework of multiple scattering ... -
Atiénzar Navarro, Roberto (Universitat Politècnica de València, 2016-11-28)_ En la presente Tesina Fin de Máster se va a realizar un trabajo de simulación del comportamiento acústico de una nueva generación de pantallas acústicas basadas en cristales de sonido (CS) para controlar el ruido de ... -
Guild, Matthew; García Chocano, Víctor Manuel; Kan, Weiwei; Sánchez-Dehesa Moreno-Cid, José (American Institute of Physics, 2014-12)n this work, a recent theoretically predicted phenomenon of enhanced permittivity with electromagnetic waves using lossy materials is investigated for the analogous case of mass density and acoustic waves, which represents ... -
Cebrecos Ruiz, Alejandro; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Staliünas, Kestutis; Romero García, Vicente; García-Raffi, L. M. (American Institute of Physics (AIP): Open Access Journals, 2014-12)The enhancement of sound inside a two dimensional exponentially chirped crystal during the soft reflections of waves is experimentally and theoretically explored in this work. The control of this enhancement is achieved ... -
Hervás Zafra, Blanca (Universitat Politècnica de València, 2016-05-27)[EN] Some authors have realised recently about the potential of applying a periodic structure, called sonic crystals, as sound diffusers also been shown that it significantly modify the sound field within a room. This ...
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Fuster Fajardo, José Miguel (Universitat Politècnica de València, 2014-01-21)Uno de los objetivos en la Acústica de Salas consiste en la creación de un campo sonoro difuso. Los difusores de sonido pueden mejorar el rendimiento acústico de las salas, aumentando la difusión del campo sonoro, la ... -
Tomàs Ibiza, Fernando (Universitat Politècnica de València, 2013-11-26)Los cristales fonónicos y sónicos han generado un creciente interés científico para aplicaciones tecnológicas muy diversas. Estos cristales están compuestos de distribuciones periódicas de dispersores embebidos en una ... -
Romero García, Vicente; García Raffi, Luis Miguel; Sánchez Pérez, Juan Vicente (American Institute of Physics, 2011)The properties of sonic crystals (SC) are theoretically investigated in this work by solving the inverse problem k(¿) using the extended plane wave expansion (EPWE). The solution of the resulting eigenvalue problem gives ... -
Picó Vila, Rubén; Pérez Arjona, Isabel; Sánchez Morcillo, Víctor José; Staliünas, Kestutis (Elsevier, 2013-07)We report experimental evidences of spatial (angular) filtering of sound beams propagating through sonic crystals. We show that at specific frequencies of the incident wave the paraxial plane wave compo- nents of the beam ... -
Christensen, Johan; Romero García, Vicente; Picó Vila, Rubén; Cebrecos Ruiz, Alejandro; Garcia de Abajo, Francisco Javier; Mortensen, N. A.; Willatzen, M.; Sánchez Morcillo, Víctor José (Nature Publishing Group: Open Access Journals - Option C, 2014-04-14)We present the design of a structured material supporting complete absorption of sound with a broadband response and functional for any direction of incident radiation. The structure which is fabricated out of porous ... -
Cebrecos Ruiz, Alejandro; Romero García, Vicente; Picó Vila, Rubén; Pérez Arjona, Isabel; Espinosa Roselló, Víctor; Sánchez Morcillo, Víctor José; Staliünas, Kestutis (American Institute of Physics (AIP), 2012-05-15)[EN] A theoretical and experimental study of the propagation of sound beams in- and behind three-dimensional sonic crystals at frequencies close to the band edges is presented. An efficient collimation of the beam behind ... -
Redondo, Javier; Ramírez-Solana, David; Picó Vila, Rubén (MDPI AG, 2023-03)[EN] Helmholtz resonators (HRs) have the advantage of extending and improving their insulating capacity when used as scatterers in noise barriers made of periodic media, such as sonic crystals (SCs). However, the interaction ... -
Jimenez, Noe; Cox, Trevor J.; Romero García, Vicente; Groby, J.P. (Nature Publishing Group, 2017-07-14)[EN] We present deep-subwavelength diffusing surfaces based on acoustic metamaterials, namely metadiffusers. These sound diffusers are rigidly backed slotted panels, with each slit being loaded by an array of Helmholtz ... -
Sánchez-Dehesa Moreno-Cid, José; García Chocano, Víctor Manuel; Torrent Martí, Daniel; Cervera Moreno, Francisco Salvador; Cabrera García, Suitberto; Simon, Francisco (Acoustical Society of America, 2011-03)A systematic study of noise barriers based on sonic crystals made of cylinders that use recycled materials like absorbing component is reported here. The barriers consist of only three rows of perforated metal shells filled ... -
Hamham, El Mokhtar; Jimenez, Noe; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; García-Raffi, L. M.; Staliünas, Kestutis (American Physical Society, 2015-08-06)We report the propagation of high-intensity sound beams in a sonic crystal, under self-collimation or reduced-divergence conditions. The medium is a fluid with elastic quadratic nonlinearity, where the dominating nonlinear ... -
Peiró-Torres, M.P.; Ferri García, Marcelino; Godinho, Luis M.; Amado-Mendes, Paulo; Vea-Folch, Francisco Jose; Redondo, Javier (EDP Sciences, 2021-07-20)[EN] Sonic crystal acoustic screens have been in progressive research and development in the last two decades as a technical solution for mitigating traffic noise. Their behaviour is quite different from that observed in ...
Mostrando ítems 1-20 de 30
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