Flutter instability prediction techniques for bridge deck sections

International Journal for Numerical Methods in Fluids - Tập 43 Số 10-11 - Trang 1239-1256 - 2003
I. Robertson1, Spencer J. Sherwin1, Peter Bearman1
1Department of Aeronautics, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.

Tóm tắt

AbstractIn 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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International Journal for Numerical Methods in Fluids

Tập 43 Số 10-11

1239-1256

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