ZHAO Da-hai;&#;LI Hong-nan. VIBRATION CONTROL OF NONLINEAR STRUCTURE BY SEMI-ACTIVE FRICTION DAMPER BASED ON T-S FUZZY LOGIC[J]. Engineering Mechanics, 2007, 24(12): 65-071.
Citation: ZHAO Da-hai;&#;LI Hong-nan. VIBRATION CONTROL OF NONLINEAR STRUCTURE BY SEMI-ACTIVE FRICTION DAMPER BASED ON T-S FUZZY LOGIC[J]. Engineering Mechanics, 2007, 24(12): 65-071.

VIBRATION CONTROL OF NONLINEAR STRUCTURE BY SEMI-ACTIVE FRICTION DAMPER BASED ON T-S FUZZY LOGIC

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
  • The fuzzy logic control method based on Takagi-Sugeno model is proposed for controlling structural vibration by semi-active friction damper installed on a nonlinear building structure subjected to earthquakes. The equation of motion for nonlinear building structure with continuous Bouc-Wen hysteretic model is firstly introduced. Next, the initial sliding force with friction damper is determined by time history analysis under minor earthquakes. And then, the Takagi-Sugeno fuzzy logic model is employed to adjust the normal 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 acceleration and inter-story drift of the nonlinear building structure under earthquake excitations.

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