STRUCTURAL VIBRATION CONTROL FOR BRIDGE TOWERSAND ITS EFFECT UNDER WIND EXCITATION USING A WIND TUNNEL

摘要

In this paper we present an experimental investigation ofactive vibration control of a scaled bridge tower model underartificial wind excitation. The control scheme is designed on thebasis of a reduced order model of the flexible structures using theLQ control theory, with a collocation of four laser displacementsensors and two hybrid electro-magnetic actuators. Theexperimental results in the wind tunnel show that both thebending and the twisting vibrations covering the first five modesof the structure are controlled well.