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Coupled Systems Mechanics
  Volume 1, Number 2, June 2012 , pages 133-154

Advanced flutter simulation of flexible bridge decks
Gergely Szabo, Jozsef Gyorgyi and Gergely Kristof

    In this paper a bridge flutter prediction is performed by using advanced numerical simulation. Two novel approaches were developed simultaneously by utilizing the ANSYS v12.1 commercial software package. The first one is a fluid-structure interaction simulation involving the three-dimensional elastic motion of a bridge deck and the fluid flow around it. The second one is an updated forced oscillation technique based on the dynamic mode shapes of the bridge. An aeroelastic wind tunnel model was constructed in order to validate the numerical results. Good agreement between the numerical results and the measurements proves the applicability of the novel methods in bridge flutter assessment.
Key Words
    bridge deck flutter; fluid-structure interaction (FSI); modal derivatives method
Gergely Szabo and Jozsef Gyorgyi : Department of Structural Mechanics, Budapest University of Technology and Economics, Hungary
Gergely Kristof :Department of Fluid Mechanics, Budapest University of Technology and Economics, Hungary

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