The aim of this paper is to apply the Harmonic Balance Method (HBM) to a finite element model of a complete vehicle (body, engine and engine mounts) to calculate the non-linear response of the assembly. The non-linear effects come from the amplitude-dependent stiffness of the engine mounts. First, the HBM is presented. A condensation process on the non-linear degrees-of-freedom is also proposed. This process reduces the original non-linear system by focusing only on the solution of the non-linear equations associated with the system's non-linear components. Second, the engine mount stiffness dependency with amplitude is measured on a test bench to estimate a polynomial stiffness law. Finally, the numerical analysis is performed to analyse the non-linear response of the whole vehicle using the HBM algorithm with appropriate condensation located only on the non-linear coordinates of the system to minimise computer time.


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    Title :

    Non-linear dynamics of a whole vehicle finite element model using a harmonic balance method


    Contributors:
    Barillon, F. (author) / Sinou, J.J. (author) / Duffal, J.M. (author) / Jezequel, L. (author)

    Published in:

    Publication date :

    2013


    Size :

    17 Seiten, 10 Bilder, 1 Tabelle, 10 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English