28 June 2002 Variable-structure-system-based logic fuzzy control of bridge vibration using fail-safe magnetorheological fluid dampers
Author Affiliations +
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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yanming Liu, Yanming Liu, Faramarz Gordaninejad, Faramarz Gordaninejad, Cahit A. Evrensel, Cahit A. Evrensel, Gregory H. Hitchcock, Gregory H. Hitchcock, Xiaojie Wang, 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); doi: 10.1117/12.472557; https://doi.org/10.1117/12.472557
PROCEEDINGS
9 PAGES


SHARE
Back to Top