中国民航大学学报 ›› 2021, Vol. 39 ›› Issue (1): 22-27.

• 民用航空 • 上一篇    下一篇

磁流变阻尼器Bouc-Wen 模型参数辨识研究

杨永刚,丁有闯   

  1. (中国民航大学航空工程学院,天津300300)
  • 出版日期:2021-02-25 发布日期:2021-02-15
  • 作者简介:杨永刚(1978—),男,吉林四平人,教授,博士,研究方向为飞机起落架振动控制。

Parameter identification of magneto-rheological damper Bouc-Wen model

YANG Yonggang, DING Youchuang   

  1. (College of Aeronautical Engineering, CAUC, Tianjin 300300, China)
  • Online:2021-02-25 Published:2021-02-15

摘要: 磁流变阻尼器动力学模型存在参数不易辨识的难题。提出在Simulink 中搭建Bouc-Wen 模型,选择非线性最小二乘法进行迭代,利用Parameter Estimation 曲线拟合工具箱确定电流与阻尼力调控参数的关系,进而确定所有参数辨识结果。采用其他幅值频率试验数据对Bouc-Wen 模型进行验证,结果表明,试验结果和仿真结果拟合度较高,该方法可有效辨识动力学模型参数。

关键词: 磁流变阻尼器, Bouc-Wen 模型, Matlab/Simulink, 最小二乘法, 参数辨识

Abstract: It is not easy to identify the parameters of magneto-rheological damper dynamic model. Therefore, it is proposed to build a Bouc-Wen model in Simulink, choosing nonlinear least square algorithm to conduct iteration; relation between current and damping force controlling parameters is determined by using the curve fitting toolbox parameter estimation, and then all the parameter identification results are determined. Finally, Bouc-Wen model is validated by the test data of other amplitude frequencies. Results show that there exists high fitting degree between test results and simulation results, proving the effectiveness of the current method in parameter identification.

Key words: magnetorheological damper, Bouc-Wen model, Matlab/Simulink, least square, parameter identification

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