Gisbert García, Ignacio(Universitat Politècnica de València, 2013-05-31)
La intención fundamental de este trabajo es aplicar el proceso de acondicionamiento
acústico en función de unos objetivos, para obtener unas medidas de control sobre la sala, y una
vez conocidas aplicarlas para observar ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel(American Institute of Physics (AIP), 2010)
Evanescent modes in complete sonic crystals (SCs) and SC with point defects are reported both theoretically and experimentally in this paper. Plane wave expansion (PWE) and in general, ω(k)ω(k) methods have been used to ...
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 ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; Castiñeira Ibáñez, Sergio; García-Raffi, L. M.(American Institute of Physics (AIP), 2010)
We show both experimentally and theoretically the evanescent behavior of modes in the band gap of finite phononic crystal (PC). Based on experimental and numerical data we obtain the imaginary part of the wave vector in ...
[EN] The wave transport properties of two-dimensional stealthy hyperuniform distributions of rigid scatterers embedded in a waveguide are experimentally characterized for scalar waves in airborne audible acoustics. The ...
Malléjac, M.; Merkel, A.; Sánchez-Dehesa Moreno-Cid, José; Christensen, J.; Tournat, V.; Romero-García, V.; Groby, J.-P.(American Institute of Physics, 2021-04-14)
[EN] This paper examines the feasibility of cloaking an obstacle using Plate-type Acoustic Metamaterials (PAMs). We present two distinct strategies
to cloak this obstacle, using either the near-zero-density regime of a ...
[EN] In a passive lossy acoustical system, sum rules derived from passivity explicitly relate the broadband response to the spatial dimension of the system, which provide important design criteria as well. In this work, ...
Romero García, Vicente; Fuster García, Elíes; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel; Blasco, Xavier; Herrero Durá, Juan Manuel; Sanchís Saez, Javier(Springer Verlag (Germany), 2007)
[EN] It is well known that Genetic Algorithms (GA) is an optimization method which can be used in problems where the traditional optimization techniques are difficult to be applied. Sonic Crystals (SC) are periodic structures ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García-Raffi, L. M.; Herrero Durá, Juan Manuel; García Nieto, Susana; Blasco Ferragud, Francesc Xavier(American Institute of Physics (AIP), 2008)
An improvement in the attenuation capabilities of acoustic metamaterials by means of the creation of defects is considered here as a multiobjective optimization problem. From this point of view, it is possible to define ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel; Herrero Durá, Juan Manuel; García Nieto, Susana; Blasco, Xavier(Acoustical Society of America, 2009)
An exhaustive study has been made into the potential improvement in attenuation and focusing of phononic crystal arrays resulting from the deliberate creation of vacancies. Use is made of a stochastic search algorithm based ...
[EN] An Acoustic Black Hole (ABH) in a one-dimensional (1D) beam is a passive vibration damping device based on a local reduction of the beam thickness attached to a thin layer of attenuating material. This work aims at ...
[EN] The absorption performance of a locally-reacting acoustic metamaterial under oblique incidence is studied. The metamaterial is composed of a slotted panel, each slit being loaded by an array of Helmholtz resonators. ...
[EN] The limits of flexural wave absorption by open lossy resonators are analytically and numerically reported in this work for both the reflection and transmission problems. An experimental validation for the reflection ...
[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 ...
Jimenez, Noe; Tournat, Vincent; Romero García, Vicente; Sánchez Morcillo, Víctor José(Acoustical Society of America, 2018-07-09)
[EN] In solids, the constitutive relations between strain and stress lead in most cases to a dominant quadratic nonlinear response. However, there exist some solid materials that exhibit negative quadratic nonlinearity, ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel(Japan Society of Applied Physics, 2012-07-20)
Inverse-designed scattering acoustical elements, called quasi-ordered structures (QOSs), are theoretically and experimentally reported in this work, showing their possibilities as attenuation devices. Multiobjective ...
Romero García, Vicente; Krynkin, A.; García-Raffi, L. M.; Umnova, O.; Sánchez Pérez, Juan Vicente(Elsevier, 2013-01-07)
An acoustic metamaterial made of a two-dimensional (2D) periodic array of multi-resonant acoustic scatterers is analyzed both experimentally and theoretically. The building blocks consist of a combination of elastic beams ...
[EN] The closed form expressions of the effective properties in periodic fluid laminates are derived thanks to the Pade approximation of the transfer matrix. A second-order Taylor expansion of the transfer matrix elements ...
Rivera Ortun, María José; Trujillo Guillen, Macarena; Romero García, Vicente; López Molina, Juan Antonio; Berjano Zanón, Enrique(Elsevier, 2013-08)
The hyperbolic bioheat equation (HBE) has been used to model heating applications involving very short power pulses. This equation includes two mathematical distributions (Heaviside and Delta) which have to be necessarily ...
Romero García, Vicente(Universitat Politècnica de València, 2010-12-15)
El control de las propiedades acústicas de los cristales de sonido (CS) necesita del estudio de la distribución de dispersores en la propia estructura y de las propiedades acústicas intrínsecas de dichos dispersores. En ...