Analytical solution and application analysis of damper additional damping ratio based on the Bouc-Wen model

被引：0
|
作者：
Wu S. [1 ]
He H. [1 ]
Wang B. [1 ]
Chen J. [2 ]
机构：
[1] Beijing Key Laboratory of Earthquake Engineering and Structure Retrofit, Beijing University of Technology, Beijing
[2] College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 16期
关键词：
additional effective damping ratio; bilinear model; Bouc-Wen model; damped structure; hysteretic energy;
D O I：
10.13465/j.cnki.jvs.2022.16.002
中图分类号：
学科分类号：
摘要：
Additional effective damping ratio is an important parameter for evaluating the performance of damped structures. According to existing design codes, the bilinear model should be used to simulate the hysteresis performance of displacement-dependent dampers. However, the model can only accurately quantify the energy dissipation capacity and additional damping ratio under the fitting displacement. The Bouc-Wen model can accurately quantify the energy dissipation of dampers at all displacement levels, but there is no accurate additional effective damping ratio formula based on the model. Based on the explicit analysis of the Bouc-Wen model, the formula for calculating the additional effective damping ratio of the damper was derived. Based on experiment data, the accuracies of different models for characterizing the energy dissipation capacity of dampers were analyzed and compared. The parameter analysis of the additional effective damping ratio based on the Bouc-Wen model was carried out, and the variation law and the influence of performance parameters were given. Based on the finite element model analysis, the differences of the dynamic response and the additional effective damping ratios of different models were compared, which further verified the effectiveness and application value of the proposed method. © 2022 Chinese Vibration Engineering Society. All rights reserved.
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页码：10 / 18
页数：8
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