| 基于模型修改的结构损伤检测 |
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| 引用本文： | 鞠彦忠 盛严. 基于模型修改的结构损伤检测[J]. 东北电力学院学报, 2000, 20(4): 11-15 |
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| 作者姓名： | 鞠彦忠 盛严 |
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| 作者单位： | 东北电力学院建筑工程系,吉林 |
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| 基金项目： | 东北电力学院青年科研基金资助项目 |
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| 摘 要： | 提出一种基于模型修改的损伤检测理论方法。此方法是先对结构的有限元分析模型进行修正，然后运用此模型来模拟原始结构，损伤发生前后的模型计算模态模拟测试模态，最后运用最小二乘法确定损伤。
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| 关 键 词： | 模型修改 损伤检测 最小乘法 工程结构 |
Structural Damage Detection Based on Updating the Finite Element Models of Structures |
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| JU Yan zhong,SHENG Yan,CHEN Jing yan,CHEN Jian hua,YANG Xiang jiang. Structural Damage Detection Based on Updating the Finite Element Models of Structures[J]. Journal of Northeast China Institute of Electric Power Engineering, 2000, 20(4): 11-15 |
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| Authors: | JU Yan zhong SHENG Yan CHEN Jing yan CHEN Jian hua YANG Xiang jiang |
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| Abstract: | A theoretical method of structural damage detection based on updating the finite element models of structures is presented.At first,the finite element model is updated.Then the original structure is simulated by the model,and the calculated modes of the model of damaged or undamaged structure simulate the measured modes of damage or undamaged structure,respectively.At last,this paper applies the method to locate structural damage and furthermore,to determine the magnitudes of damage by the least squares technique. |
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| Keywords: | updating model damage detection the least squares technique |
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