[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, ...
Zhang, Jiangyi; Romero-García, Vicente; Theocharis, Georgios; Richoux, Olivier; Achilleos, Vassos; Franzeskakis, Dimitris J.(American Institute of Physics, 2021-03-09)
[EN] We report experiments on high-amplitude sound wave propagation in an acoustic metamaterial composed of an air-filled waveguide periodically side-loaded by holes. In addition to the linear viscothermal and radiation ...
González Mateo, Enrique Manuel(Universitat Politècnica de València, 2022-01-12)
[ES] En este trabajo se describe teórica y numéricamente un metamaterial acústico basado en poros
que producen una absorción cuasi perfecta en transmisión. Los poros están optimizados para
soportar resonancias simétricas ...