基于光纤光栅传感技术的复合材料损伤检测
Damage detection of composite materials based on fiber Bragg grating sensor technology
查看参考文献16篇
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文摘
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随着科学技术的不断进步和发展,越来越多的新型复合材料构件在工业制造过程中被采用,然而复合材料在服役过程中一旦损坏将造成巨大的损失,因此对复合材料的结构健康检测显得十分重要。将布拉格光纤光栅(FBG)传感技术应用于玻璃纤维复合材料薄板检测,采用主动冲击的方式在玻璃纤维复合材料板上激励声波,采集损伤前后的冲击响应信号,研究基于小波包能量谱的冲击响应的损伤识别。通过小波包分解,得到损伤前后的小波能量谱变化比直方图,比较图中各阶小波包能量比,能够实现复合材料的损伤识别。 |
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其他语种文摘
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With the continuous progress and development of science and technology, more and more new composite materials were used in the industrial manufacturing process. Because the damage of composite materials during service will lead to huge losses, it is very important for structural health monitoring of composite materials. Fiber Bragg grating (FBG) sensor technology was used in the detection of glass fiber composite sheet. Glass fiber composite was incented using active impact way, and impulse response signal before and after the injury was collected. Based on the wavelet packet energy spectrum, the impact response of the damage identification was realized by wavelet packet decomposition, and the histogram of wavelet energy spectrum changes ratio before and after the injury was obtained. By comparing each order wavelet packet energy ratio, the damage identification of the glass fiber composite was realized. |
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来源
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量子电子学报
,2013,30(5):608-614 【核心库】
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关键词
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光电子学
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光纤光栅
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冲击响应
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复合材料
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小波包能量谱
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地址
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1.
东南大学物理系, 江苏, 南京, 211189
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中国科学院安徽光学精密机械研究所, 安徽, 合肥, 230031
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-5461 |
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学科
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物理学 |
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文献收藏号
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CSCD:4945740
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