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。
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.
出处
《东北电力学院学报》
2000年第4期11-15,共5页
Journal of Northeast China Institute of Electric Power Engineering
基金
东北电力学院青年科研基金资助项目
关键词
模型修改
损伤检测
最小二乘法
updating model
damage detection
the least squares technique
