Communication Dans Un Congrès Année : 2014

Finite element analyses of double-wall sandwich structures with viscoelastic core

Résumé

This paper presents a reduced order finite element model for soundtransmission analysis through a double-wall sandwich structures with viscoelasticcore inserted in an infinite baffle. The proposed model is derived from a multi-fieldvariational principle involving structural displacement and acoustic pressure insidethe fluid cavity. To solve the vibro-acoustic problem, the plate displacements areexpanded as a modal summation of the plate's eigenfunctions in vacuo. Similarly, thecavity pressure is expanded as a summation over the modes of the cavity with rigidboundaries. Then, an appropriate reduced-order model is introduced. The structure isexcited by a plane wave at the source side. An example of the normal soundtransmission loss of a double glazed window with laminated glass is shown. Thisexample illustrates the accuracy and the versatility of the proposed reduced ordermodel, especially in terms of prediction of sound transmission.

Fichier principal
Vignette du fichier
hal-03179140.pdf (139.6 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
licence

Dates et versions

hal-03179140 , version 1 (15-11-2023)

Licence

Identifiants

  • HAL Id : hal-03179140 , version 1

Citer

Rawad Assaf, Walid Larbi. Finite element analyses of double-wall sandwich structures with viscoelastic core. International Conference on Computing in Civil and Building Engineering, ICCCBE 2014, Jun 2014, Orlando, Florida, United States. ⟨hal-03179140⟩
100 Consultations
92 Téléchargements

Partager

  • More