Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Vincent Pagneux"'
Autor:
Antonin Coutant, Li‐Yang Zheng, Vassos Achilleos, Olivier Richoux, Georgios Theocharis, Vincent Pagneux
Publikováno v:
Advanced Physics Research, Vol 3, Iss 4, Pp n/a-n/a (2024)
Abstract One of the hallmark of topological insulators is having conductivity properties that are unaffected by the possible presence of defects. In this work, by going beyond backscattering immunity and topological invisibility across defects or dis
Externí odkaz:
https://doaj.org/article/1edb8fe3afb4400cb45de09d0d2499be
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract The absorption of airborne sound is still a subject of active research, and even more since the emergence of acoustic metamaterials. Although being subwavelength, the screen barriers developed so far cannot absorb more than 50% of an inciden
Externí odkaz:
https://doaj.org/article/0b9352c99aa6438889efee572201b9e4
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Here, the authors experimentally report one-way transmission of ultrasonic waves by relying on the acoustic radiation pressure effect. This effect makes it possible to reconfigure a multilayer system by significantly deforming the water-air interface
Externí odkaz:
https://doaj.org/article/843f1ebf0f96414ca842c91fd5693953
Publikováno v:
Fluids, Vol 7, Iss 5, p 145 (2022)
We report a theoretical and experimental investigation of the propagation of nonlinear waves passing over a submerged rectangular step. A multimodal method allows calculating the first- and second-order reflected and transmitted waves. In particular,
Externí odkaz:
https://doaj.org/article/b367204537384fdc81245298674666de
Autor:
Léo-Paul Euvé, Natalia Piesniewska, Agnès Maurel, Kim Pham, Philippe Petitjeans, Vincent Pagneux
Publikováno v:
Crystals, Vol 11, Iss 5, p 520 (2021)
We present a theoretical and experimental study of a resonator of the Helmholtz type for the control of the swell. An experimental demonstration of the shielding effect by a belt made of evenly distributed resonators is given. We then provide in-dept
Externí odkaz:
https://doaj.org/article/ebf8cf7ca1bb4c9197ad6595c39edd7c
Autor:
Li-Yang Zheng, Vassos Achilleos, Ze-Guo Chen, Olivier Richoux, Georgios Theocharis, Ying Wu, Jun Mei, Simon Felix, Vincent Tournat, Vincent Pagneux
Publikováno v:
New Journal of Physics, Vol 22, Iss 1, p 013029 (2020)
In this work, we study the propagation of sound waves in a honeycomb waveguide network loaded with Helmholtz resonators (HRs). By using a plane wave approximation in each waveguide we obtain a first-principle modeling of the network, which is an exac
Externí odkaz:
https://doaj.org/article/5a6ad7013bb546b19b256b77f7425394
Publikováno v:
Applied Sciences, Vol 7, Iss 6, p 618 (2017)
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. The system is analytically studied
Externí odkaz:
https://doaj.org/article/e432a0c951cf4ea6beb9ebbbcd67b6f5
Publikováno v:
The Journal of the Acoustical Society of America. 151(6)
Topological systems furnish a powerful way of localizing wave energy at edges of a structured material. Usually this relies on Bragg scattering to obtain bandgaps with nontrivial topological structures. However, this limits their applicability to low
Publikováno v:
28th AIAA/CEAS Aeroacoustics 2022 Conference.
Autor:
Vicente Romero-García, Aurélien Merkel, Vassos Achilleos, Vincent Pagneux, Noé Jiménez, Olivier Richoux, Vincent Tournat, Georgios Theocharis, Jean-Philippe Groby
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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[Otros] Dans cette revue, nous présentons des résultats sur l'absorption acoustique parfaite sub-longueur d'onde faisant appel à des métamatériaux acoustiques avec des résonateurs Helmholtz pour différentes configurations. L'absorption parfait