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A platform for research: civil engineering, architecture and urbanism
Active control of flutter of a suspension bridge
Abstract Flutter suppression of a bridge deck by an active control method is tried. Bridge deck has control wings for suppressing flutter vibration. The aerodynamic forces acting on the control wings provide the additional aerodynamic force to the bridge deck. By providing the adequate phase and amplitude for the pitching motion of the control wings, the additional aerodynamic force produced by the control wings become positive aerodynamic damping. Thus the flutter is suppressed. Two dimensional theoretical analysis showed that the flutter speed of the bridge deck could be increased up to infinite high speed. From the model tests, the flutter speed was increased by a factor of two.
Active control of flutter of a suspension bridge
Abstract Flutter suppression of a bridge deck by an active control method is tried. Bridge deck has control wings for suppressing flutter vibration. The aerodynamic forces acting on the control wings provide the additional aerodynamic force to the bridge deck. By providing the adequate phase and amplitude for the pitching motion of the control wings, the additional aerodynamic force produced by the control wings become positive aerodynamic damping. Thus the flutter is suppressed. Two dimensional theoretical analysis showed that the flutter speed of the bridge deck could be increased up to infinite high speed. From the model tests, the flutter speed was increased by a factor of two.
Active control of flutter of a suspension bridge
Kobayashi, H. (author) / Nagaoka, H. (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 41 ; 143-151
1992-01-01
9 pages
Article (Journal)
Electronic Resource
English
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