论文信息 - A STUDY OF MODE COUPLING IN FLUTTER AND BUFFETING OF THE AKASHI-KAIKYO BRIDGE

A STUDY OF MODE COUPLING IN FLUTTER AND BUFFETING OF THE AKASHI-KAIKYO BRIDGE

Flutter and buffeting of the Akashi-Kaikyo Bridge were analyzed using a newly developed analytical tool, which is able to consider fully aeroelastic and aerodynamic coupling effects among modes. The analysis well demonstrated the behavior of a wind-tunnel model and particularly could capture the modecoupling effects. Six primary modes dominated the flutter of the Akashi-Kaikyo Bridge where significant mode couplings of the 1 S torsional mode with three vertical modes were observed. The multi-mode analysis also provided insights into the coupling mechanism in buffeting in which strong aeroelastic and aerodynamic interactions between vertical and torsional modes were observed.

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