摘要
采用小波变换作为复合材料层合板损伤检测信号的分析工具 ,在获得复合材料层合板的动力学响应的基础上 ,应用小波分析工具对结构响应信号进行提取 ,对含噪声信号则先作降噪声处理 ,然后再进行小波分解 ,根据各种响应信号对损伤的灵敏度 ,选择损伤特征 ,通过捕捉结构出现损伤的时刻 。
The wavelet analysis is adopted for dealing with the signal. The main subject is to calculate the dynamic response of sandwich board. Then the structure response signal is decomposed by wavelet tools after deducing the annoyance. The real-time monitoring for composite material is carried out by catching the damaging moment. The damage character is chosen by comparing the susceptibility with damage among response signals.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2003年第11期1047-1050,共4页
Journal of Beijing University of Aeronautics and Astronautics
基金
航空基础科学基金资助项目 ( 0 2B5 10 60 )
航空支撑科技基金资助项目 ( 0 1A5 10 0 7)
关键词
层板
小波
实时监测
损伤检测
Computer simulation
Dynamic response
Laminates
Signal detection
Wavelet transforms
