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Proceedings Paper

Fuzzy logic control of the building structure with CLEMR dampers
Author(s): Xiang-Cheng Zhang; Zhao-Dong Xu; Xing-Huai Huang; Jun-Tao Zhu
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Paper Abstract

The semi-active control technology has been paid more attention in the field of structural vibration control due to its high controllability, excellent control effect and low power requirement. When semi-active control device are used for vibration control, some challenges must be taken into account, such as the reliability and the control strategy of the device. This study presents a new large tonnage compound lead extrusion magnetorheological (CLEMR) damper, whose mathematical model is introduced to describe the variation of damping force with current and velocity. Then a current controller based on the fuzzy logic control strategy is designed to determine control currents of the CLEMR dampers rapidly. A ten-floor frame structure with CLEMR dampers using the fuzzy logic control strategy is built and calculated by using MATLAB. Calculation results show that CLEMR dampers can reduce the seismic responses of structures effectively. Calculation results of the fuzzy logic control strategy are compared with those of the semi-active limit Hrovat control structure, the passive-off control structure, and the uncontrolled structure. Comparison results show that the fuzzy logic control strategy can determine control currents of CLEMR dampers quickly and can reduce seismic responses of the structures more effectively than the passive-off control strategy and the uncontrolled structure.

Paper Details

Date Published: 10 April 2013
PDF: 11 pages
Proc. SPIE 8688, Active and Passive Smart Structures and Integrated Systems 2013, 86882G (10 April 2013); doi: 10.1117/12.2009517
Show Author Affiliations
Xiang-Cheng Zhang, Southeast Univ. (China)
Zhao-Dong Xu, Southeast Univ. (China)
Xing-Huai Huang, Southeast Univ. (China)
Jun-Tao Zhu, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 8688:
Active and Passive Smart Structures and Integrated Systems 2013
Henry Sodano, Editor(s)

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