Hydro-elasticity in flexible multibody dynamics

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    A method is presented that incorporates hydrodynamic radiation forces in the floating frame of reference method used in flexible multibody dynamics. These hydrodynamic forces are approximated such that the fully hydro-elastically coupled problem can be solved at once using standard techniques. To this end, the elastic deformation of the body that is (partially) submerged is described using Craig-Bampton modes. The generalized hydrodynamic forces caused by motion in these modes are computed using a source panel method. In a frequency domain parameter identification procedure, the solution of the remaining radiation problem is approximated by a transfer function that represents a convenient physical system. This is done such that the corresponding differential equations in the time domain describe a mechanical system. The method is illustrated for a two-dimensional partially submerged cylinder.
    Original languageEnglish
    Title of host publicationProceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics 2016
    EditorsP. Sas, D. Moens, A. van de Walle
    Place of PublicationLeuven
    ISBN (Electronic)978-907380294-0
    Publication statusPublished - 2016
    Event27th International Conference on Noise and Vibration Engineering, ISMA 2016 - Heverlee, Belgium
    Duration: 19 Sep 201621 Sep 2016
    Conference number: 27

    Publication series

    PublisherKULeuven, 19-21 september 2016


    Conference27th International Conference on Noise and Vibration Engineering, ISMA 2016
    Abbreviated titleISMA
    Internet address


    • IR-102762
    • METIS-320052


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