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Numerical Simulation of Aeroelastic Instabilities of Elementary Bridge Decks

Serge Piperno 1
1 CAIMAN - Scientific computing, modeling and numerical analysis
CRISAM - Inria Sophia Antipolis - Méditerranée , ENPC - École des Ponts ParisTech, CNRS - Centre National de la Recherche Scientifique : UMR6621
Abstract : In this report, we propose a global methodology for the numerical simulation of wind effects on elementary bridge profiles, particularly possible aeroelast- ic instabilities. This methodology is based on an efficient coupling algorithm- , a finite-element solver for three-dimensional incompressible Navier-Stokes equations in a moving domain and a structural solver. The fluid solver is detailed, the emphasis being put on the ALE formulation. Numerical and experimental results are compared for cases with a structural rigid motion. On a rectangle, numerical simulations for forced oscillation (heaving or rotation) are qualitatively correct, rather inaccurate, but in good agreements with free oscillation numerical simulations though. On a H-shaped section close to the Tacoma Narrows bridge profile, numerical results are both qualitatively and quantitatively very satisfactory and promising.
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Submitted on : Wednesday, May 24, 2006 - 11:57:27 AM
Last modification on : Friday, February 4, 2022 - 3:15:09 AM
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  • HAL Id : inria-00073134, version 1



Serge Piperno. Numerical Simulation of Aeroelastic Instabilities of Elementary Bridge Decks. RR-3549, INRIA. 1998. ⟨inria-00073134⟩



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