[1]徐赵东,郭迎庆.利用模糊控制器确定磁流变半主动控制结构的参数[J].东南大学学报(自然科学版),2004,34(2):244-248.[doi:10.3969/j.issn.1001-0505.2004.02.024]
 Xu Zhaodong,Guo Yingqing.Determination of parameters of magnetorheological semi-active control structures by using fuzzy controller[J].Journal of Southeast University (Natural Science Edition),2004,34(2):244-248.[doi:10.3969/j.issn.1001-0505.2004.02.024]
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利用模糊控制器确定磁流变半主动控制结构的参数()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第2期
页码:
244-248
栏目:
土木工程
出版日期:
2004-03-20

文章信息/Info

Title:
Determination of parameters of magnetorheological semi-active control structures by using fuzzy controller
作者:
徐赵东1 郭迎庆2
1 东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096; 1 东南大学土木工程学院, 南京 210096; 2 东南大学自动控制系, 南京 210096
Author(s):
Xu Zhaodong1 Guo Yingqing2
1 Key Laboratory of RC & PC Structures of Ministry of Education, Southeast University, Nanjing 210096, China
1 College of Civil Engineering, Southeast University, Nanjing 210096, China
2 Department of Automatic
关键词:
磁流变阻尼器 模糊控制器 半主动控制 动力反应
Keywords:
magnetorheological dampers fuzzy controller semi-active control dynamic response
分类号:
TU352
DOI:
10.3969/j.issn.1001-0505.2004.02.024
摘要:
为了瞬时而准确地确定磁流变半主动控制结构的控制电流,有效地减小受控结构的动力反应,采用了模糊控制器确定磁流变阻尼器的输入电流.以地震加速度激励和结构位移反应为输入,以控制电流为输出,根据抗震规范和实际经验合理地设计模糊控制器,采用模糊控制器所确定的电流对建筑结构实施半主动控制.通过对一个3层钢筋混凝土结构进行实例分析,并与双态控制结构和未控结构进行对比研究可以得到:在模糊控制中,无论是对于位移反应还是加速度反应都比双态控制好,而且有效地避免了小激励时的动力反应放大问题.
Abstract:
In order to determine the control currents of magnetorheological semi-active control structures quickly and accurately, and reduce the dynamic responses of controlled structures effectively, fuzzy controller is adopted to determine the input currents of magnetorheological damper. Taking earthquake acceleration excitation and structural displacement responses as inputs, and treating controlled current as output, fuzzy controller is designed reasonably according to seismic code and practical experience. Then structures are controlled semi-actively under the controlled current determined by fuzzy controller. Through a numerical example of a three-floor reinforce concrete structure, and a comparison with bi-state controlled structure and uncontrolled structure, it can be concluded that both displacement responses and acceleration responses of fuzzy controlled structure are reduced more effectively than those of bi-state controlled structure, moreover, amplification of dynamic responses during minor excitation can be avoided under fuzzy control.

参考文献/References:

[1] Xu Zhaodong,Shen Yapeng.A new intelligent control strategy for the structure with magnetorheological dampers [J].Journal of Intelligent Material Systems and Structures, 2003,14(1):35-42.
[2] Wereley N M,Pang L,Kamath G M.Idealized hysteresis modeling of electrorheological and magnetorheological dampers [J].Journal of Intelligent Material Systems and Structures, 1998,9(6):642-649.
[3] Phillips R W.Engineering applications of fluids with a variable yield stress [D].Berkeley University of California,CA,1969.
[4] Xu Zhaodong,Shen Yapeng,Guo Yingqing.Semi-active control of structures incorporated with magnetorheological dampers using neural networks [J].Smart Materials and Structures, 2003,12(1):80-87.
[5] 中国建筑规范编制组.GBJ50011—2001建筑抗震设计规范 [S].北京:中国建筑工业出版社,2001.38.
[6] 李士勇.模糊控制、神经网络和智能控制论 [M].哈尔滨:哈尔滨工业大学出版社,1998.246-251.

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金重点项目资助(50038010).
作者简介: 徐赵东(1975—),男,博士,副教授,xzdpod@sohu.com.
更新日期/Last Update: 2004-03-20