空间杆系结构的单元分组及统计损伤识别方法

Journal of Wuhan University of Science and Technology(Natural Science Edition)(2007)

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Abstract
提出一种基于应变模态的空间杆系结构统计损伤识别方法。为了减少待识别单元的数量,根据相似度对所有单元进行分组,从而将结构的损伤识别分两步实行:首先识别出所有可能损伤单元的范围,然后再进行结构损伤的定位和损伤程度的估计,其中,对于较深程度的损伤,采用应变模态的修正摄动矩阵,最后采用数值仿真分析进行了验证。
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Key words
matrix perturbation theory,damage detection,strain mode shape,Bayesian statistical method
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