节点文献
基于振动的结构损伤识别
Damage Identification Based on Dynamic Response of Structure
【摘要】 把单元刚度修正系数作为待识别参数,综合考虑了各结构参数对结构损伤的影响,并运用条件优化方法对单元刚度修正系数进行计算,计算了结构损伤时各单元的损伤因子,通过损伤因子即可对单元的损伤情况进行评估,经过实例运算验证了其对结构损伤的敏感性和有效性.
【Abstract】 The updating coefficient of element stiffness is used for identification of damage. The impact of various parameters on structural stiffness is considered at the same time. Using conditional optimization method, the updating coefficient of element stiffness is identified. The sensitivity and effectiveness is verified by an example.
【关键词】 单元刚度修正系数;
损伤识别;
特征频率;
振型;
【Key words】 updating coefficient of element stiffness; damage indentification; eigenfrequency; vibration shape;
【Key words】 updating coefficient of element stiffness; damage indentification; eigenfrequency; vibration shape;
【基金】 受教育部博士点专项基金资助(No:20030487016)
- 【文献出处】 三峡大学学报(自然科学版) ,Journal of University of Hydraulic and Electric Engineering/yichang , 编辑部邮箱 ,2004年04期
- 【分类号】TU311.3
- 【被引频次】8
- 【下载频次】135