Development of a new structural damage detection method using chaos attractor re-composition technique

利用混沌吸引子重构技术开发一种新的结构损伤检测方法

• 批准号: 23560581
• 负责人: SATO Tadanobu
• 金额: $ 3.33万
• 依托单位: Kobe Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560581/
• 关键词: 構造ヘルスモニタリング; カオス応答アトラクタ; 微細損傷の同定; モンテカルロフィルター; 緩和型粒子フィルター; 遺伝的アルゴリズム; ベイズ理論; 数値シミュレーション; 構造工学; カオス理論; アトラクタ; 構造同定; カルマンフィルター; 粒子フィルター; 起振器; 模型実験; 微小損傷

For the first purpose we propose a new attractor-based structural damage detection technique using chaotic excitation. We reconstruct attractors from responses and obtain quantitative features from the response attractors by using Recurrence Analysis. We use this feature as damage indicator. By comparing indicators between intact and damage structures, we detect and localize structural damage. The robustness against noise and sensitivity to minor damage of the proposed method are shown through numerical examples, in which we assume minor damage to a structure and high noises on input excitation and observed data.For the second purpose we apply the Monte Carlo Filter technique to identify the level of structural damage. We develop the Relaxation MCF, by which we improve the deficit of the classical MCF. The efficiency of the proposed method is confirmed by identifying the dynamic parameters of a ten-story model building be using noise contaminated simulated structural response data.

第一个目的，我们提出了一种新的基于吸引子的结构损伤检测技术，利用混沌激励。我们从响应中重构吸引子，并通过递归分析从响应吸引子中获得定量特征。我们将此功能用作损坏指示器。通过比较完整和受损结构之间的指标，我们检测和定位结构损伤。通过数值算例，表明了该方法对噪声的鲁棒性和对微小损伤的敏感性，其中假设结构损伤较小，输入激励和观测数据均为高噪声。我们发展了松弛型最小方差滤波器，改善了经典最小方差滤波器的不足。通过对一个10层模型建筑的动力参数识别，验证了该方法的有效性。

项目成果

Adaptability of Monte Carlo filter for estimation of abruptly changing parameters using acceleration measurements

蒙特卡罗滤波器对于使用加速度测量估计突变参数的适应性

• 发表时间: 2011
• 期刊: Proceedings of the 2011 World Congress on Advances in Structural Engineering and Mechanics
• 作者: M-J. Chung;C-B. Yun;T. Sato
• 通讯作者: T. Sato

Adaptablity of Monte Carlo filter for estimation of abruptly changing parameters using accleration measurements

蒙特卡罗滤波器使用加速度测量估计突变参数的适应性

• 发表时间: 2011
• 作者: Myunging Chung;Chung-Bang Yun and Tadanobu Sato
• 通讯作者: Chung-Bang Yun and Tadanobu Sato

Investigation of the delayed rejection adaptive metropolis for structural uncertainty determination

用于结构不确定性确定的延迟拒绝自适应都市研究

• 发表时间: 2011
• 作者: Jian Zhang;Chunfeng Wan and Tadanobu Sato
• 通讯作者: Chunfeng Wan and Tadanobu Sato

FRACTAL CHARACTERISTICS OF PHASE SPECTRUM OF EARTHQUAKE MOTION

• DOI: 10.1142/s1793431113500103
• 发表时间: 2013-08
• 期刊: Journal of Earthquake and Tsunami
• 影响因子: 1.5
• 作者: Tadanobu Sato

Detection of structural parameter detection using chaotic excitation technique,

使用混沌激励技术检测结构参数，

• 发表时间: 2013
• 期刊: Proceeding of the 11th International Conference on Structural Safety and Reliability
• 作者: Tadanobu Sato;Yasuyoshi Nomura and Chunfeng Wan
• 通讯作者: Yasuyoshi Nomura and Chunfeng Wan