Sound radiation from a cylindrical shell with a multilayered resonant coating - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Mechanical Sciences Année : 2022

Sound radiation from a cylindrical shell with a multilayered resonant coating

Résumé

The vibroacoustic response of a structurally excited cylindrical shell submerged in water is presented. The shell is coated with a soft elastic material embedded with circumferential arrays of resonant inclusions. The coating is modelled as a multilayered equivalent fluid composed of homogeneous layers of the host soft material and homogenised layers comprising voids or hard inclusions. The radiated acoustic pressure is analytically derived by assembling and solving continuity and kinematic conditions at the interfaces between the cylindrical shell and the multilayered coating. Coating designs with different combinations of homogenised layers are examined. Physical mechanisms governing acoustic performance of the various coating designs are described. We show that the material of the inclusions, tuning the local resonances of the inclusions and the distribution of the homogenised layers within the coating have a significant effect on the shell vibroacoustic response
Fichier principal
Vignette du fichier
Sound_radiation_from_a_cylindrical_shell_with_a_multilayered_resonant_coating.pdf (1.23 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03763448 , version 1 (17-05-2024)

Identifiants

Citer

Cikai Lin, Gyani Shankar Sharma, Daniel Eggler, Laurent Maxit, Alex Skvortsov, et al.. Sound radiation from a cylindrical shell with a multilayered resonant coating. International Journal of Mechanical Sciences, 2022, 232, pp.107479. ⟨10.1016/j.ijmecsci.2022.107479⟩. ⟨hal-03763448⟩
14 Consultations
11 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More