传统的基于频率的损伤定位指标是通过忽略结构运动摄动方程的二阶项得到的,用于结构的损伤位置识别可能导致误判.在对传统的基于频率的结构损伤位置识别机理进行了阐述基础上,理论推导改进的损伤定位指标.最后以复合材料悬臂梁进行数值模拟试验.试验结果表明,所建议的改进方法指标比原来方法指标更为有效.
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