摘要
提出了基于小波分析和支持向量机的结构损伤识别两步法。首先利用小波变换分析信号的奇异性来判别损伤发生的时刻;然后提取损伤信号的小波包分量能量,利用支持向量机算法建立SVM模型估计结构的损伤位置。网架结构的数值算例结果表明该方法可以有效地识别结构损伤。
The two-step structure damage identification method based on wavelet analysis and support vector machines was proposed in this paper.Firstly the irregularity of signal was analyzed by wavelet transform and the exact time when the structure damage occurs was estimated.Secondly,the wavelet packet signal component node energy containing structure damage information was extracted,which was selected as the sample of support vector machines to establish SVM model to carry on damage localization of the structure.T...
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2008年第2期80-82,86,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50378074)
关键词
小波分析
支持向量机
损伤
wavelet analysis
support vector machines
damage
