| 小波分析在复合材料层合结构损伤检测中的应用 |
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| 引用本文： | 陈换过,姜节胜,闫云聚,余龙.小波分析在复合材料层合结构损伤检测中的应用[J].应用力学学报,2004,21(4):140-142. |
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| 作者姓名： | 陈换过 姜节胜 闫云聚 余龙 |
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| 作者单位： | 西北工业大学,西安,710072 |
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| 基金项目： | 国家自然科学基金 (5 0 3 75 12 3 ) |
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| 摘 要： | 利用小波变换技术，研究了含裂纹悬臂复合材料层合结构的损伤振动检测问题。用小波分析技术分解完好板与损伤板在方波信号激励下的动力响应信号，得到一系列子信号，并从中提取出结构损伤信息一响应信号能量谱，作为损伤特征参数。
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| 关 键 词： | 小波分析 复合材料层合结构 损伤检测 |
| 文章编号： | 1000-4939(2004)04-0140-03 |
Wavelet Analysis in Damage Detection for Laminated Composite Structure |
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| Chen Huanguo,Jiang Jiesheng,Yan Yunju,Yu Long.Wavelet Analysis in Damage Detection for Laminated Composite Structure[J].Chinese Journal of Applied Mechanics,2004,21(4):140-142. |
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| Authors: | Chen Huanguo Jiang Jiesheng Yan Yunju Yu Long |
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| Abstract: | Vibration-based detection of crack damage for a cantilever laminated composite structure is studied with Wavelet Transform. The dynamic response signals under excitation of a square wave signal are calculated. Sub-signals are decomposed from dynamic response signals with the aid of wavelet analysis technology, and damage information, i.e., the energy spectrum of response signals, is extracted. |
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| Keywords: | wavelet analysis laminated composite structure damage detection |
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