[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 ...
[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. ...
Romero-García, Vicente; Pagneux, Vincent; Groby, J.P.; Jimenez, Noe; Ballestero, Eric(Centre d'information et de documentation sur le bruit (France), 2020)
[FR] Dans ce travail, nous montrons les possibilités des métamatériaux acoustiques pour la conception de matériaux structurés sublongueur d'onde dans les cas de l¿absorption parfaite et la diffusion du son. Basé sur les ...
[EN] In this work we report a mechanisms providing symmetric perfect acoustic absorption by sub-wavelength structures in the ventilation problem. While in the problem of reflection the mechanism consists in critically ...
[EN] We theoretically and experimentally report sub-wavelength resonant panels for low-frequency quasi-perfect sound absorption including transmission by using the accumulation of cavity resonances due to the slow sound ...
[EN] Perfect, broadband and asymmetric sound absorption is theoretically, numerically and experimentally reported by using subwavelength thickness panels in a transmission problem. The panels are composed of a periodic ...
Jimenez, Noe; Huang, Weichung; Romero García, Vicente; Pagneux, Vincent; Groby, J.P.(American Institute of Physics, 2016)
[EN] Using the concepts of slow sound and critical coupling, an ultra-thin acoustic metamaterial panel for perfect and quasi-omnidirectional absorption is theoretically and experimentally conceived in this work. The system ...
Chéron, Élie; Simon, Felix; Groby, Jean Philippe; Pagneux, Vincent; Romero-García, Vicente(American Institute of Physics, 2022-08-08)
[EN] By varying the degree of correlation in stealthy hyperuniform (SHU) materials, the continuous evolution from uncorrelated disorder to periodic media is possible and allows us, as such, to study the fate of the bimodal ...