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Proceedings Paper

Fuzzy control for nonlinear structure with semi-active friction damper
Author(s): Da-Hai Zhao; Hong-Nan Li
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Paper Abstract

The implementation of semi-active friction damper for vibration mitigation of seismic structure generally requires an efficient control strategy. In this paper, the fuzzy logic based on Takagi-Sugeno model is proposed for controlling a semi-active friction damper that is installed on a nonlinear building subjected to strong earthquakes. The continuous Bouc-Wen hysteretic model for the stiffness is used to describe nonlinear characteristic of the building. The optimal sliding force with friction damper is determined by nonlinear time history analysis under normal earthquakes. The Takagi-Sugeno fuzzy logic model is employed to adjust the clamping force acted on the friction damper according to the semi-active control strategy. Numerical simulation results demonstrate that the proposed method is very efficient in reducing the peak inter-story drift and acceleration of the nonlinear building structure under earthquake excitations.

Paper Details

Date Published: 27 April 2007
PDF: 9 pages
Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65252B (27 April 2007); doi: 10.1117/12.715886
Show Author Affiliations
Da-Hai Zhao, Dalian Univ. of Technology (China)
Hong-Nan Li, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6525:
Active and Passive Smart Structures and Integrated Systems 2007
Yuji Matsuzaki; Mehdi Ahmadian; Donald J. Leo, Editor(s)

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