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Simulation of Fluid Loaded Flexible Multibody Systems

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Abstract

In this paper an analysis method for transient nonlinear fluid-structure interaction is presented. The fluid part of the problem is described in an ALE framework, where the incompressible Navier-Stokes equations are solved on a deforming domain to provide loading for the structure. The structure is handled in a flexible multibody framework, that has the advantage of having the gross motion described very efficiently when comparing to the use of a geometrically nonlinear finite element analysis for the structure. This combination of methodologies is particularly well suited for applications where the displacement of the structure can be described by small vibrations on top of very large rigid body motion. These types of problems can arise for instance in the analysis of wind turbine wings. Two small examples involving 2D flow are presented to illustrate the capabilities of the method proposed in this work.

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Authors and Affiliations

  1. Institute of Mechanical Engineering, Aalborg University, Denmark

    Henrik MØller & Erik Lund

  2. Institute of Mechanical Engineering, IDMEC/IST, Portugal

    Jorge A. C. Ambrósio & João GonÇalves

Authors
  1. Henrik MØller
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  2. Erik Lund
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  3. Jorge A. C. Ambrósio
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  4. João GonÇalves
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Correspondence to Henrik MØller.

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MØller, H., Lund, E., Ambrósio, J.A.C. et al. Simulation of Fluid Loaded Flexible Multibody Systems. Multibody Syst Dyn 13, 113–128 (2005). https://doi.org/10.1007/s11044-005-2531-x

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  • DOI: https://doi.org/10.1007/s11044-005-2531-x

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