Variable structure system based logic fuzzy control of bridge vibration using fail-safe magnetorheological fluid dampers

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

doi:10.1117/12.472557

28 June 2002 Variable-structure-system-based logic fuzzy control of bridge vibration using fail-safe magnetorheological fluid dampers

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

Author Affiliations +

Proceedings Volume 4696, Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways; (2002) https://doi.org/10.1117/12.472557
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

This paper presents a semi-active vibration control of a scaled two-span bridge structure. Magneto-rheological fluid dampers are utilized as the semi-active energy absorbing deices and a bridge vibration control system is developed. Closed-loop control system based on fuzzy logic is used to suppress the bridge deck motion under random excitations. The sufficient condition for the closed-loop stability of the fuzzy control system is derived from the variable structure system theory. It is demonstrated that this stable fuzzy control system can significantly reduce the relative deck displacement using about 55 percent less power compared to passive-on state, while the absolute deck acceleration is relatively unaffected.

Citation Download Citation

Yanming Liu, Faramarz Gordaninejad, Cahit A. Evrensel, Gregory H. Hitchcock, and Xiaojie Wang "Variable-structure-system-based logic fuzzy control of bridge vibration using fail-safe magnetorheological fluid dampers", Proc. SPIE 4696, Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways, (28 June 2002); https://doi.org/10.1117/12.472557

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