Semiactive control of a two-span bridge using field-controllable magneto-rheological dampers

Yanming Liu; Faramarz Gordaninejad; Cahit A. Evrensel; Xiaojie Wang; Gregory H. Hitchcock

doi:10.1117/12.383143

20 April 2000 Semiactive control of a two-span bridge using field-controllable magneto-rheological dampers

Yanming Liu, Faramarz Gordaninejad, Cahit A. Evrensel, Xiaojie Wang, Gregory H. Hitchcock

Proceedings Volume 3988, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways; (2000) https://doi.org/10.1117/12.383143
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

Yanming Liu, Faramarz Gordaninejad, Cahit A. Evrensel, Xiaojie Wang, and 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); https://doi.org/10.1117/12.383143

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