在定义单元残余能量基础上进行单元残余能量的灵敏度分析,提出基于单元残余能量灵敏度分析的结构损伤识别方法,建立结构损伤识别方程组.通过解方程,求得损伤系数向量,便可同时识别结构的损伤位置及损伤程度.仿真结果表明,本文提出的方法对各损伤工况不但能准确定位,而且能有效识别出损伤程度,识别精度较高.%The element residual energy was defined and its sensitivity was analyzed. Furthermore, the structural damage identification method based on the sensitivity of element residual energy was presented and the corresponding equations were established, by solving which, damage location and severity can be simultaneously determinated. Numerical simulations show that the proposed method is effective in different damage cases.
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