Computational and experimental investigation of free vibration and flutter of bridge decks

Computational and experimental investigation of free vibration and flutter of bridge decks A modified rigid-object formulation is developed, and employed as part of the fluid–object interaction modeling framework from Akkerman et al. (J Appl Mech 79(1):010905, 2012. https://doi.org/10.1115/1.4005072) to simulate free vibration and flutter of long-span bridges subjected to strong winds. To validate the numerical methodology, companion wind tunnel experiments have been conducted. The results show that the computational framework captures very precisely the aeroelastic behavior in terms of aerodynamic stiffness, damping and flutter characteristics. Considering its relative simplicity and accuracy, we conclude from our study that the proposed free-vibration simulation technique is a valuable tool in engineering design of long-span bridges. Keywords Flutter · Numerical methods · Solid–fluid interaction · Rigid bodies · Wind 1 Introduction methods have been employed in several marine applications in the study of free-surface flows [1,7–9]. In the context of The Finite Element Method (FEM) has in recent decades bridge engineering, FOI has been used to study the effect seen significant development in accurate modeling in Com- of railings and spoilers on the Hardanger bridge [2] and to putational Fluid Dynamics (CFD) and Fluid–Structure Inter- simulate the flutter phenomenon for the Great Belt East sus- action (FSI), which are, with the increasing computer power, pension http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Computational Mechanics Springer Journals

Computational and experimental investigation of free vibration and flutter of bridge decks

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Engineering; Theoretical and Applied Mechanics; Computational Science and Engineering; Classical and Continuum Physics
ISSN
0178-7675
eISSN
1432-0924
D.O.I.
10.1007/s00466-018-1587-4
Publisher site
See Article on Publisher Site

Abstract

A modified rigid-object formulation is developed, and employed as part of the fluid–object interaction modeling framework from Akkerman et al. (J Appl Mech 79(1):010905, 2012. https://doi.org/10.1115/1.4005072) to simulate free vibration and flutter of long-span bridges subjected to strong winds. To validate the numerical methodology, companion wind tunnel experiments have been conducted. The results show that the computational framework captures very precisely the aeroelastic behavior in terms of aerodynamic stiffness, damping and flutter characteristics. Considering its relative simplicity and accuracy, we conclude from our study that the proposed free-vibration simulation technique is a valuable tool in engineering design of long-span bridges. Keywords Flutter · Numerical methods · Solid–fluid interaction · Rigid bodies · Wind 1 Introduction methods have been employed in several marine applications in the study of free-surface flows [1,7–9]. In the context of The Finite Element Method (FEM) has in recent decades bridge engineering, FOI has been used to study the effect seen significant development in accurate modeling in Com- of railings and spoilers on the Hardanger bridge [2] and to putational Fluid Dynamics (CFD) and Fluid–Structure Inter- simulate the flutter phenomenon for the Great Belt East sus- action (FSI), which are, with the increasing computer power, pension

Journal

Computational MechanicsSpringer Journals

Published: Jun 4, 2018

References

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