ON AN ITERATIVE GENERAL-ORDER PERTURBATION METHOD FOR MULTIPLE STRUCTURAL DAMAGE DETECTION

机译：多重结构损伤检测的迭代通用扰动方法研究

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A general-order perturbation method involving multiple perturbation parameters is developed for eigenvalue problems with changes in the stiffness parameters. The perturbation solutions and eigenparameter sensitivities of all orders are derived explicitly. The perturbation method is used iteratively in conjunction with an optimization method in a robust damage detection algorithm. The generalized inverse method is used efficiently with the first order perturbations, and the gradient and quasi-Newton methods are used with the higher-order perturbations. Numerical simulations demonstrated the effectiveness of the algorithm in detecting the locations and extents of small to large levels of damage.

机译：针对刚度参数变化的特征值问题，提出了一种涉及多个扰动参数的通用扰动方法。明确推导了所有阶的摄动解和本征参数敏感性。在鲁棒性损坏检测算法中，摄动方法与优化方法一起迭代使用。一阶扰动有效地使用了广义逆方法，而高阶扰动则使用了梯度和准牛顿法。数值模拟证明了该算法在检测小到大损坏程度和位置方面的有效性。

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来源
《2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana》|2002年|p.301-313|共13页
会议地点 New Orleans LA(US);New Orleans LA(US)
作者
C.N. Wong; W.D. Zhu; G.Y. Xu;
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作者单位

Department of Mechanical Engineering University of Maryland Baltimore County Baltimore, MD 21250;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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专利

1. On an iterative general-order perturbation method for multiple structural damage detection [J] . Wong CN, Zhu WD, Xu GY Journal of Sound and Vibration . 2004,第1a2期

机译：一种用于多种结构损伤检测的迭代总阶摄动方法
2. Structural damage detection by a new iterative regularization method and an improved sensitivity function [J] . Entezami Alireza, Shariatmadar Hashem, Sarmadi Hassan Journal of Sound and Vibration . 2017,第期

机译：通过新的迭代正则化方法和改进的灵敏度损伤检测
3. Multiple augmentations of nonlinear systems and generalized minimum rank perturbations for damage detection [J] . DSouza K, Epureanu BI Journal of Sound and Vibration . 2008,第1a5期

机译：非线性系统的多重扩充和广义最小秩扰动用于损伤检测
4. On an iterative general-order perturbation method for multiple structural damage detection [C] . C. N. Wong, W. D. Zhu, G. Y. Xu ASME International Mechanical Engineering Congress and Exposition . 2002

机译：多种结构损伤检测的迭代通用扰动方法
5. Development of an iterative method for structural damage detection and a stochastic model for the random impact series method in modal testing. [D] . Wong, Chun Nam (Simon). 2004

机译：开发用于结构损伤检测的迭代方法和用于模态测试的随机冲击序列方法的随机模型。
6. Enhanced structural variant and breakpoint detection using SVMerge by integration of multiple detection methods and local assembly [O] . Kim Wong, Thomas M Keane, James Stalker, 2010

机译：通过集成多种检测方法和本地装配使用SVMerge增强了结构变异和断点检测
7. An Effective Damage Identification Method for Composite Laminated Plates with Multiple Site Damage Using Successive Iteration Method of Bounding Domain [O] . Daisuke Aoki, Hideki Sekine 2004

机译：使用偏移域连续迭代方法具有多站点损伤的复合层压板的有效损伤识别方法

ON AN ITERATIVE GENERAL-ORDER PERTURBATION METHOD FOR MULTIPLE STRUCTURAL DAMAGE DETECTION

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