基于实时混合试验的黏滞阻尼器Maxwell模型参数识别

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (3) : 45-53.

振动理论与交叉研究

基于实时混合试验的黏滞阻尼器Maxwell模型参数识别

郑欢1,2，王涛*2，王贞3，孟丽岩2，许国山4，张佳辉2，窦晓亮5

作者信息 +

Parametric identification of Maxwell model for viscous damper based on real-time hybrid tests

ZHENG Huan1,2, WANG Tao*2, WANG Zhen3, MENG Liyan2, XU Guoshan4, ZHANG Jiahui2, DOU Xiaoliang5

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文章历史 +

摘要

为研究黏滞阻尼器在真实高频响应下的振动特性并识别其Maxwell模型参数，给出一种基于最小二乘的Maxwell模型参数识别方法，开展物理子结构为黏滞阻尼器的高速列车减振器实时混合试验，得到车速在250km/h至400km/h范围内黏滞阻尼器真实滞回响应，并根据阻尼器真实响应识别黏滞阻尼器Maxwell模型参数。结果表明，随着列车车速增大，黏滞阻尼器力与位移峰值响应均增大且位移基频提高，所识别Maxwell模型标准化刚度增大而标准化阻尼减小；所给参数识别方法精度较高，不同车速下黏滞阻尼器识别力与实测力时程的均方根误差不超过20.9%，且列车车速越大，均方根误差越小。该研究可为高频振动下黏滞阻尼器性能评估与工程应用提供参考。

Abstract

In order to study the vibration characteristics under the real high-frequency responses and identify the Maxwell model parameters of viscous dampers, a parameter identification method of Maxwell model based on the least square method is proposed. The real-time hybrid tests of high-speed train dampers with viscous dampers as the physical substructure were carried out. The real hysteretic responses of viscous dampers at speeds ranging from 250km/h to 400km/h were obtained, and the Maxwell model parameters of viscous dampers were identified according to the real responses of dampers. The results show that with the increase of train speed, the peak responses of viscous damper force and displacement increase and the fundamental frequency of displacement increase, and the normalized stiffness of the identified Maxwell model increases while the normalized damping decreases; the proposed parameter identification method has high accuracy, and the root mean square error of the time-history between the identification force and the measured force of the viscous damper at different speeds is not more than 20.9%, and the larger the train speed, the smaller the root mean square error. This study can provide reference for the performance evaluation and engineering application of viscous dampers under high frequency vibration.

导出引用

郑欢1, 2, 王涛2, 王贞3, 孟丽岩2, 许国山4, 张佳辉2, 窦晓亮5. 基于实时混合试验的黏滞阻尼器Maxwell模型参数识别[J]. 振动与冲击, 2025, 44(3): 45-53

ZHENG Huan1, 2, WANG Tao2, WANG Zhen3, MENG Liyan2, XU Guoshan4, ZHANG Jiahui2, DOU Xiaoliang5. Parametric identification of Maxwell model for viscous damper based on real-time hybrid tests[J]. Journal of Vibration and Shock, 2025, 44(3): 45-53

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