A Padé approximant reconstruction scheme for fast resolution of structural-acoustic finite element models including porous materials.
2012 (English)Conference paper (Refereed)
In this work, an efficient solution strategy is investigated for the resolution of multi-frequency structural-acoustic problems including 3D modelling of poroelastic materials. The finite element method is used, together with a combination of a modal-based reduction of the poroelastic domain and a Pad´e-based reconstruction approach. It thus takes advantage of the reduced-size of the problem while further improving the computational efficiency by limiting the number of frequency resolutions of the original problem. An adaptive procedure is proposed for the discretization of the frequency range into frequency intervals of reconstructed solution. The validation is presented on a 3D poro-acoustic example.
Place, publisher, year, edition, pages
Department of Aerospace Engineering, University of Naples “Federico II” , 2012.
Research subject SRA - Transport
IdentifiersURN: urn:nbn:se:kth:diva-108081OAI: oai:DiVA.org:kth-108081DiVA: diva2:578906
NOVEM 2012, 1-4 April 2012, Sorrento
ProjectsCentre for ECO2 Vehicle DesignTRENoP
FunderTrenOp, Transport Research Environment with Novel Perspectives
QC 201301152012-12-192012-12-192013-05-07Bibliographically approved