Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Acoustic characterization of Silica aerogel clamped plates for perfect absorption

Abstract : A multiobjective optimization procedure is employed to retrieve the viscoelatic parameters of silica aerogel clamped plates. This retrieval method preserves the aerogel sample integrity and, in contrast to the existing ones, relies on the minimization of two different cost functions. The first one, namely J 1 , is related to the reflective properties of clamped plates backed by a rigid cavity, while the second one, namely J 2 , concerns both the reflectance and transmittance spectra measured in transmission configuration. The recovered parameters are in agreement with previously reported values in the literature. In addition, they are also supported by designing structures for perfect absorption (100 % of absorption), which has been validated experimentally. Aerogel plates can be therefore used as innovative building units of artificial structures for the broadband absorption of sound.
Liste complète des métadonnées

Littérature citée [42 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-02366101
Contributeur : Vicente Romero Garcia <>
Soumis le : vendredi 15 novembre 2019 - 16:40:24
Dernière modification le : jeudi 10 septembre 2020 - 13:28:04
Archivage à long terme le : : dimanche 16 février 2020 - 18:45:04

Fichier

Aerogel_HAL.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

A. Geslain, J.-P. Groby, V. Romero-Garcia, F. Cervera, J. Sánchez-Dehesa. Acoustic characterization of Silica aerogel clamped plates for perfect absorption. Journal of Non-Crystalline Solids, Elsevier, 2018, 499, pp.283-288. ⟨10.1016/j.jnoncrysol.2018.07.021⟩. ⟨hal-02366101⟩

Partager

Métriques

Consultations de la notice

362

Téléchargements de fichiers

1007