Flutter instability prediction techniques for bridge deck sections | Zendy

Robertson I. | Zendy; Sherwin S. J. | Zendy; Bearman P. W. | Zendy

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Flutter instability prediction techniques for bridge deck sections

Author(s) -

Robertson I.,

Sherwin S. J.,

Bearman P. W.

Publication year - 2003

Publication title -

international journal for numerical methods in fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.938

H-Index - 112

eISSN - 1097-0363

pISSN - 0271-2091

DOI - 10.1002/fld.535

Subject(s) - flutter , solver , deck , rigid body , instability , rotation around a fixed axis , computational fluid dynamics , mechanics , wind tunnel , motion (physics) , structural engineering , classical mechanics , mathematics , physics , computer science , engineering , aerodynamics , mathematical optimization

In order to investigate the fluid/structure interaction of a bridge deck in a cross wind, a two‐dimensional hp/Spectral fluid solver has been modified to incorporate a body undergoing translational and rotational motion. A moving frame of reference is attached to the body to utilize the efficiency of a fixed mesh solver. The critical reduced velocity at which a bridge deck undergoes a two degree of freedom flutter instability is then predicted using various methods: a theoretical linear potential model; quasi‐steady theory; a linear evaluation of applied forces using prescribed motion; and free translational and rotational motion of the structure. These predictions are compared with experimental data and the various merits of each scheme are reported. Copyright © 2003 John Wiley & Sons, Ltd.

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