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http://dx.doi.org/10.12989/csm.2012.1.2.133

Advanced flutter simulation of flexible bridge decks  

Szabo, Gergely (Department of Structural Mechanics, Budapest University of Technology and Economics)
Gyorgyi, Jozsef (Department of Structural Mechanics, Budapest University of Technology and Economics)
Kristof, Gergely (Department of Fluid Mechanics, Budapest University of Technology and Economics)
Publication Information
Coupled systems mechanics / v.1, no.2, 2012 , pp. 133-154 More about this Journal
Abstract
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.
Keywords
bridge deck flutter; fluid-structure interaction (FSI); modal derivatives method;
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