基于Bouc-Wen模型的阻尼器附加有效阻尼比解析解及应用

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (16) : 10-18.

论文

吴山1，何浩祥1，王宝顺1，陈建伟2

作者信息 +

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

WU Shan1，HE Haoxiang1，WANG Baoshun1，CHEN Jianwei2

Author information +

文章历史 +

摘要

附加有效阻尼比是评价减震结构性能的重要参数，现有的建筑消能减震技术规程规定应采用双线性模型模拟位移相关型阻尼器恢复力性能，但该模型仅能在拟合位移下准确量化阻尼器耗能能力和附加有效阻尼比。Bouc-Wen模型能够在各级位移下准确量化阻尼器耗能，但目前缺乏基于该模型的附加有效阻尼比计算公式。对Bouc-Wen模型进行显式化解析，推导出基于该模型的阻尼器附加有效阻尼比计算公式。结合试验数据，对采用不同模型表征阻尼器耗能能力的精度进行了数值分析和对比，证明了提出方法的精确性。对基于Bouc-Wen模型的附加有效阻尼比进行参数分析，给出了其变化规律和各性能参数影响。基于有限元分析，对采用不同模型计算结构动力响应和附加有效阻尼比的差异进行了对比，进一步验证了提出方法的有效性和应用价值。
关键词：减震结构；附加有效阻尼比；Bouc-Wen模型；双线性模型；滞回耗能

Abstract

Additional effective damping ratio is an important parameter for evaluating the performance of damped structures. According to the existing design code, the bilinear model should be used to simulate the hysteresis performance of the 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 this 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 the 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 method in this study.
Key words: damped structure; additional effective damping ratio; Bouc-Wen model; bilinear model; hysteretic energy

导出引用

吴山1，何浩祥1，王宝顺1，陈建伟2. 基于Bouc-Wen模型的阻尼器附加有效阻尼比解析解及应用[J]. 振动与冲击, 2022, 41(16): 10-18

WU Shan1，HE Haoxiang1，WANG Baoshun1，CHEN Jianwei2. Analytical solution and application analysis of damper additional damping ratio based on the Bouc-Wen model[J]. Journal of Vibration and Shock, 2022, 41(16): 10-18

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