柔性体的有限元模型修正技术研究
Study of Model Updating of Flexible Body
本文基于残余力向量的损伤识别方法，提出了一种改进的最小范数法，利用QR分解技术，在求逆过程中消除掉含有噪声的模态项。通过严格的公式推导证明该方法只需要少量的模态信息就可得到满意的模型修正与损伤识别结果。
his paper proposes an improved minimum norm method based on the damage detection of the residual force vector. By using the QR decomposition method, the mode mixed with noise is eliminated in matrix inverse process. Through the strict inferential reasoning, it is proved that this method could obtain the satisfying result of model updating and damage detection.
洪嘉振、李伟明
工程基础科学
模型修正损伤识别残余力噪声
Model updating，Damage detection，Residual force vector，Noise
洪嘉振,李伟明.柔性体的有限元模型修正技术研究[EB/OL].(2007-12-25)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200712-665.点此复制
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