Vortex Induced Vibration Analysis of Twin Box Girders by Means of Computational Fluid Dynamics

Qing Liang Zhan; Zhi Yong Zhou; Ting Yang; Yao Jun Ge

doi:10.4028/www.scientific.net/AMM.638-640.1012

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 638-640Vortex Induced Vibration Analysis of Twin Box...

Vortex Induced Vibration Analysis of Twin Box Girders by Means of Computational Fluid Dynamics

Abstract:

This paper analyzes the vortex induced vibration (VIV) phenomena of twin box bridge girders by means of 2D computational fluid dynamics (CFD) models. The modeling of turbulence follows a methodology known as large eddy simulation (LES) in which the large scales of turbulence are resolved, while the small ones are modeled by means of sub-grid-models. The dynamic response of structure in relation to the fluid is solved by embedding the code of Newmark-β method in user defined functions of Fluent. The time history of girder’s vibration displacement is obtained successfully, which agrees well with the experiment results of wind tunnel tests. “Lock-in”, “beat” phenomena and the displacement “detuning” phenomena in the locked field are also gained.

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Periodical:

Applied Mechanics and Materials (Volumes 638-640)

Pages:

1012-1017

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.638-640.1012

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Online since:

September 2014

Authors:

Qing Liang Zhan*, Zhi Yong Zhou, Ting Yang, Yao Jun Ge

Keywords:

CFD, Fluid Structure Interaction (FSI), Twin Box Girder, Vortex Shedding, Vortex-Induced Vibration (VIV)

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