Seismic reduction of semi-active base-isolated structures based on multi-level fuzzy control

被引：0
|
作者：
Zhao D.-H. [1 ]
Li Y.-X. [1 ]
Li H.-N. [2 ]
Qian H. [3 ]
机构：
[1] School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao
[2] School of Civil Engineering, Dalian University of Technology, Dalian
[3] School of Civil Engineering, Zhengzhou University, Zhengzhou
来源：
Li, Yong-Xing | 1600年 / Chinese Vibration Engineering Society卷 / 35期
关键词：
Base-isolated structure; Fuzzy control; Seismic reduction; Semi-active control;
D O I：
10.13465/j.cnki.jvs.2016.13.013
中图分类号：
学科分类号：
摘要：
A new type of fuzzy control controller designed for seismic protection of a base-isolated building with a piezoelectric friction damper was presented here. The controller adopted a multi-level fuzzy control algorithm. The sub-level fuzzy controller was designed to determine the command voltage of the piezoelectric friction damper with inputs of velocity and displacement of base floor. With the input of seismic acceleration, the high-level fuzzy controller adjusted quantization factor and scaling factor of the sub-level fuzzy controller in real-time. The effectiveness of the proposed multi-level fuzzy controller was verified through numerical simulation of a base-isolated structure. The simulation results were compared with those with the traditional fuzzy controller and the passive controller. Numerical results show that the proposed multi-level fuzzy controller can successfully mitigate the displacement of the base floor and the superstructure acceleration response of the structure, and has a good adaptability to ground motions with different intensities. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：78 / 84
页数：6
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