The results show that the flutter critical wind speed can be significantly increased by mounting an upper central stabilizing barrier on the top surface of the upper chords of the transverse frames of the truss girder,and the flutter .

The variation pattern between flutter critical wind speed of bridge with flat box deck and wind yaw angle is significantly affected by wind attack angle.

Thus the flutter critical wind speeds are much lower and the bridge is more unstable during this period.

Numerical simulations for aerodynamic derivatives and critical flutter velocity of bridge deck;

With the span of long-span bridges is becoming longer, the stiffness and damping ratio of structures decrease clearly and then critical flutter velocity falls accordingly.

Using computational fluid dynamics (CFD) method we studied the critical flutter wind speed of bridge box girder with or without central slot.

The Theodorsen s unsteady aerodynamic theory and the strip theory are used to describe the aerodynamic model,then the flutter equations are obtained,and the flutter speed are calculated at various feedback coefficient and ply angle.

To increase flutter speed of airfoil in aircraft engineering, the schemes that makes use of attached weights in leading-edge of aileron are discussed.