20 April 2000 Semiactive control of a two-span bridge using field-controllable magneto-rheological dampers
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Abstract
This paper presents a semi-active control of a scaled two-span bridge structure. Magneto-rheological fluid (MRF) dampers are utilized as the semi-active devices and a bridge vibration control system is developed. Both open and closed-loop control systems are used to suppress the bridge deck motion under simple harmonic and simulated earthquake excitation. Effectiveness of each system is discussed. It is demonstrated that the closed-loop control systems can reduce the relative deck displacement of the bridge, while simultaneously limiting the peak damper forces.
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Yanming Liu, Yanming Liu, Faramarz Gordaninejad, Faramarz Gordaninejad, Cahit A. Evrensel, Cahit A. Evrensel, Xiaojie Wang, Xiaojie Wang, Gregory H. Hitchcock, Gregory H. Hitchcock, } "Semiactive control of a two-span bridge using field-controllable magneto-rheological dampers", Proc. SPIE 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, (20 April 2000); doi: 10.1117/12.383143; https://doi.org/10.1117/12.383143
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