MR damper semi-active control to seismic response of arch bridge

被引：0
|
作者：
Faculty of Civil Engineering, Chongqing University, Chongqing 400045, China [1 ]
机构：
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2007年 / 26卷 / 12期
关键词：
Algorithms - Control systems - Damping - Mathematical models - Seismic response - Vibration control;
D O I：
暂无
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学科分类号：
摘要：
Two schemes of control to reduce seismec responses of arch bridges with Magneto-Rheological dampers (MRD) are presented. In the semi-active control system of arch bridge-MRD, modified phenomenological model (Yang, 2001) is selected as the mechanical model of MRD, and linear Quadratic Gaussian (LQG)-based Sign function control algorithm is used to command the action of MRD. An arch bridge model is used as a simulation example to verify the proposed control scheme. Numerical results show that the performance of the proposed semi-active control strategy is superior to that of passive control of MRD, and the displacement responses of the bridge are effectively decreased and internal forces are reduced to a certain extent in the semi-active control scheme.
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页码：141 / 145
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