Damage Detection Method Based on Element Modal Strain Energy Sensitivity
Damage Detection Method Based on Element Modal Strain Energy Sensitivity
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DOI：
10.1260/1369-4332.13.6.1075
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发表时间：
2010-12
影响因子：
2.6
通讯作者：
W. Yan;Tian-Li Huang;W. Ren
中科院分区：
文献类型：
--
作者：
W. Yan;Tian-Li Huang;W. Ren
In this paper, a damage detection method based on an efficient algebraic algorithm of element modal strain energy sensitivity is proposed for detecting damage location and severity. The method adopts a closed form of element modal strain energy sensitivity. The element damage equations have been systematically established and a solution technique incorporated with the singular value decomposition-based regularization algorithm is used to ensure the correct solutions. A number of assumed damage scenarios for numerically simulated beams and two-dimensional frame structure have been used to demonstrate the applicability of proposed method. The noise effect is also presented. It is demonstrated that the proposed method is efficient in a one-step (non-iterative) procedure.
