%0 Journal Article %T Flutter Suppression of Long-Span Bridges Using Suboptimal Control %J World Journal of Engineering and Technology %P 34-40 %@ 2331-4249 %D 2018 %I Scientific Research Publishing %R 10.4236/wjet.2018.62B004 %X Based on the Theodorsen¡¯s Theory of the aerodynamic forces on wing-aileron, the Scanlan¡¯s Theory is expanded considering a deck-flap system. It is suggested that a new forced vibration method can acquire aerodynamic derivatives of this deck-flap system theoretically. After obtaining the wind induced forces, a deck-flap equation of motion in time domain is established to investigate its control law. Numerical simulation results indicate suboptimal control law of the deck-flap system can suppress the flutter effectively, and the flutter speed can be increased for desirable purpose. %K Aerodynamic Force %K Deck-Flap System %K Flutter Suppression %K Control Law %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=84668