Journal of Computational AcousticsVol. 09, No. 03, pp. 911-918 (2001) ICTCA'99 PapersNo AccessAN HEXAHEDRAL FACE ELEMENT METHOD FOR THE DISPLACEMENT FORMULATION OF STRUCTURAL ACOUSTICS PROBLEMSALFREDO BERMÚDEZ, PABLO GAMALLO, and RODOLFO RODRÍGUEZALFREDO BERMÚDEZDepartamento de Matemática Aplicada, Universidade de Santiago de Compostela, Spain Search for more papers by this author , PABLO GAMALLODepartamento de Matemática Aplicada, Universidade de Santiago de Compostela, Spain Search for more papers by this author , and RODOLFO RODRÍGUEZDepartamento de Ingeniería Matemática, Universidad de Concepción, Chile Search for more papers by this author https://doi.org/10.1142/S0218396X01000851Cited by:1 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractSeveral finite element methods for the numerical computation of elastoacoustic vibrations are compared. They are applied to two formulations based on different variables to describe the fluid: presssure and displacement potential in one case, and displacements in the other. While the first one is discretized by standard Lagrangean finite elements for both variables, the second one is solved by "face" Raviart-Thomas elements. In each case we consider both tetrahedral and hexahedral meshes. Elastoacoustic eigenmodes have been computed for a test example by means of MATLAB implementations of all these methods. The numerical results allow us to compare all of them in terms of error versus number of degrees of freedom and computing time.Presented at ICTCA'99, the 4th International Conference on Theoretical and Computational Acoustics, May 1999, Trieste, Italy. FiguresReferencesRelatedDetailsCited By 1Approximation of the Vibration Modes of a Plate and Shells Coupled With a FluidE. Hernández5 January 2006 | Journal of Applied Mechanics, Vol. 73, No. 6 Recommended Vol. 09, No. 03 Metrics History Received 23 June 1999 Revised 6 March 2000 PDF download