The paper focuses on the numerical treatment of transient acoustic problems using finite element (FE) and boundary element (BE) methods. The FE method relies on a pressure formulation and the use of an implicit integration schemes for solving the related second-order differential system. The procedure is shown on cavity (interior) problems but can be extended to exterior problems using the DtN (Dirichlet-to-Neumann) approach. The presented BE method is restricted to 3-D problems and is based on the Kirchhoffs integral representation. The related retarded potential technique presents some interesting features which are stressed: the sparseness of matrices, the particular integration tools required and the time integration procedure for getting boundary variables. An enhanced procedure for reducing the memory requirements is also presented. Numerical applications show the performances of these discrete techniques.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Application of Finite Element and Boundary Element Models to Transient Acoustic Problems


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Conference On Vehicle Structural Mechanics & Cae ; 1995



    Erscheinungsdatum :

    1995-04-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Application of Finite Element and Boundary Element Models to Transient Acoustic Problems

    Coyette, J.-P. / Society of Automotive Engineers | British Library Conference Proceedings | 1995


    Application of finite element and boundary element models to transient acoustic problems

    Coyette,J.P. / Numerical Integration Technologies,US | Kraftfahrwesen | 1995


    Coupled boundary/finite element methods for random structural-acoustic interaction problems

    Pates, S, I, Carl / IIMei, Chuh / Shirahatti, Uday | AIAA | 1995


    Coupled Boundary/Finite Element Methods for Random Structural-Acoustic Interaction Problems

    Pates, C. / Mei, C. / Shirahatti, U. et al. | British Library Conference Proceedings | 1995


    Resolution of vibro-acoustic problems using finite and boundary element methods

    Defosse, H. / Haddar, M. / Hamdi, M. A. et al. | British Library Conference Proceedings | 1994