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Modal Extraction of Structure in Operating Conditions with Subspace Method
Author(s): 
Pages: 406-412
Year: Issue:  3
Journal: JOURNAL OF VIBRATION ENGINEERING

Keyword:  子空间模态测试工作模态环境激励;
Abstract: 针对传统模态辨识方法的缺陷,研究了工程结构在环境激励下工作模态的辨识问题.分别通过原始数据和协方差数据构成Hankel矩阵,运用子空间方法进行系统矩阵的辨识.经实验分析验证,上述方法拥有极高的辨识精度,在大型工程结构的辨识领域,拥有广阔的应用前景.
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