Damage localization on two-dimensional structure based on wavelet transform and active Lamb wave-based method

被引：0
|
作者：
Peng, G [1 ]
Yuan, SF [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Aeronat Key Lab Smart Mat & Struct, Nanjing 210016, Peoples R China
来源：
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON EARTHQUAKE ENGINEERING: NEW FRONTIER AND RESEARCH TRANSFORMATION | 2004年
关键词：
damage localization; wavelet transform; active lamb; wave-based method; time-of-flight; fiberglass plate;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Damage characterization takes place by comparing single mode sensor signals collected before and after the damage event. By subtracting the signals of both conditions from each other, a scatter signal is produced which can be used for damage localization. By using Gabor wavelet to analyze single mode Lamb wave recorded before damage and scatter signal, the difference of time-of-flight can be obtained. Combining with the ellipse technique, the localization experiment on fiberglass plate of dimension 100 mm x 100 mm x 2 mm is completed.
引用
收藏
页码：905 / 908
页数：4
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