Three-step Method for Stiffness Identification of Shearing Structures under Ambient Excitation

机译：环境激励下剪切结构刚度识别的三步法

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Stiffness identification of shearing structures under ambient excitation is studied and a three-step method is presented. The transition from structural random response to deterministic response is realized by the natural excitation technique (NExT). The parameterdecoupled free vibration equation of shearing structures is deduced, and the equation can simplify the process of identification and reduce the amount of calculation. Through the effective combination of the NExT, the parameter-decoupled method and the extended Kalman filter (EKF) algorithm, a good scheme is presented for stiffness identification of shearing structures under ambient excitation. Using a shearing structure with six-degree-offreedom as example, the three-step method is tested by numerical simulation. The results show that the inter-story stiffness can be identified basically with accuracy, and the method can be applied in practical projects for health monitoring of shearing structures

机译：研究了环境激励下剪切结构的刚度识别，提出了一种三步法。从结构随机响应到确定性响应的过渡是通过自然激发技术（NExT）实现的。推导了剪力结构参数解耦的自由振动方程，简化了辨识过程，减少了计算量。通过将NExT，参数解耦方法和扩展卡尔曼滤波器（EKF）算法有效结合，提出了一种在环境激励下识别剪切结构刚度的良好方案。以具有六自由度的剪切结构为例，通过数值模拟对三步法进行了测试。结果表明，层间刚度可以基本准确地识别，该方法可以在实际工程中用于剪切结构的健康监测。

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《2008 National Academic Symposium for Ph. D. Candidates and Tri-University Workshop on Aero-Structural Mechanics amp; Aerospace Engineering(NASPCTUWMAE2008)（2008年国际航天航空工程会议暨2008年博士生学术会议（力学））》|2008年|1-5|共5页
会议地点 Beijing(CN);Beijing(CN)
作者
Wang Zhuo(王卓); Yan Weiming;
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No.426 Mailbox, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, PR China;

No.426 Mailbox, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, PR China;

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中图分类航空、航天;
关键词
stiffness identification; shearing structures; ambient excitation;

机译：刚度识别;剪切结构;环境激励;

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专利

1. Three-step method for stiffness identification of inter-story shearing structures under ambient excitation [J] . Wang Zhuo, Yan Weiming, Shao Yunda Tsinghua Science and Technology . 2009,第S2期

机译：环境激励下层间剪切结构刚度识别的三步法
2. Three-Step Method for Stiffness Identification of Inter-Story Shearing Structures Under Ambient Excitation [J] . WANG Zhuo, YAN Weiming, SHAO Yunda 清华大学学报（英文版） . 2009,第0z2期
3. Three-Step Method for Stiffness Identification of Inter-Story Shearing Structures Under Ambient Excitation [J] . WANG Zhuo, YAN Weiming, SHAO Yunda 清华大学学报（英文版） . 2009,第0z1期
4. Three-step Method for Stiffness Identification of Shearing Structures under Ambient Excitation [C] . Tri-university workshop on aero-structural mechanics aerospace engineering . 2008

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机译：用于识别作用于振动结构流动引起的振动应用的分布式随机激励的逆方法

Three-step Method for Stiffness Identification of Shearing Structures under Ambient Excitation

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