@article {Larbi:2018:0736-2935:898,
title = "Vibroacoustic analysis of double-wall sandwich panels with viscoelastic core: finite element reduced order model",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2018",
volume = "257",
number = "1",
publication date ="2018-12-01T00:00:00",
pages = "898-906",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2018/00000257/00000001/art00087",
keyword = "sound transmission, finite element, Vibroacoustic, viscoelastic, sandwich plate",
author = "Larbi, Walid and De{\"u}, Jean-Fran{\c{c}}ois and Ohayon, Roger",
abstract = "This paper presents a finite element model for sound transmission analysis through a double sandwich panels with viscoelastic core inserted in an infinite baffle. The proposed model is derived from a multi-field variational principle involving structural displacement of the panels and
acoustic pressure inside the fluid cavity. To solve the vibro-acoustic problem, the plate displacements are expanded as a modal summation of the plate's real eigenfunctions in vacuo. Similarly, the cavity pressure is expanded as a summation over the modes of the cavity with rigid boundaries.
Then, an appropriate reduced-order model with mode acceleration method by adding quasi-static corrections is introduced. The structure is excited by a plane wave. The radiated sound power is calculated by means of a discrete solution of the Rayleigh Integral. Fluid loading is neglected. Various
results are presented in order to validate and illustrate the efficiency of the proposed reduced finite element formulation.",
}