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基于提升小波的框架结构损伤识别研究

, PP. 25-30

Keywords: 框架结构,损伤检测,损伤识别,提升小波分析,细节信号

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Abstract:

提升小波分析方法可以将信号按任意精度进行分解,具有优越的时、频局部化性能.文中在提升小波分析基础上提出了框架结构的损伤检测和识别方法.首先将结构加速度响应信号进行提升小波变换,然后采用单支重构的方法获取细节信号,通过细节信号的突变特征识别结构损伤情况,并用悬臂梁的数值模拟和三层框架模型结构试验验证了所提出方法的实用性.

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