Identification of Bouc-Wen hysteretic systems by a hybrid evolutionary algorithm

被引:118
作者
Charalampakis, A. E. [1 ]
Koumousis, V. K. [1 ]
机构
[1] Natl Tech Univ Athens, Inst Struct Anal & Aseism Res, Dept Civil Engn, Athens, Greece
关键词
D O I
10.1016/j.jsv.2008.01.018
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A new identification method that determines the parameters of Bouc-Wen hysteretic systems is presented. It is based on a hybrid evolutionary algorithm which utilizes selected stochastic operators, heuristics and problem-specific information. The proposed method exhibits efficiency, robustness and insensitivity to noise-corrupted data, while it identifies accurately both hysteretic and viscous damping based on suitable experiments. Its performance is investigated with respect to the information content of the input-output data. The scheme is verified by a hysteretic system representing a full-scale steel cantilever beam which is identified successfully. A series of parametric studies are also conducted that illustrate the inner workings of the proposed method, suggesting appropriate values for the controlling parameters. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:571 / 585
页数:15
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