| Lamb波传播特性研究 |
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| 引用本文： | 张恒萍,朱传焕.Lamb波传播特性研究[J].航空计测技术,2008,28(5). |
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| 作者姓名： | 张恒萍 朱传焕 |
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| 作者单位： | 中国舰船研究设计中心,湖北武汉430064 |
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| 摘 要： | 应用三维弹性理论对Lamb波频散曲线进行理论建模.在Lamb波主动监测系统中,应用Gabor小波变换理论分析Lamb波信号的时延及相位角,获得了板中Lamb波的相群速度频散曲线.比较理论曲线与实验数据,证明了三维弹性理论建模方法的有效性.
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| 关 键 词： | Lamb波 三维弹性理论 建模 传播特性 小波变换 |
Study of Propagational Characteristics of Lamb Wave |
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| ZHANG Heng-ping,ZHU Chuan-huan.Study of Propagational Characteristics of Lamb Wave[J].Aviation Metrology & Measurement Technology,2008,28(5). |
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| Authors: | ZHANG Heng-ping ZHU Chuan-huan |
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| Institution: | ZHANG Heng-ping,ZHU Chuan-huan(China Ship Development , Design Center,Wuhan 430064,China) |
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| Abstract: | In this paper,the frequency dispersive curves of the Lamb waves propagating in plates are modeled using the 3-D elastic theory.In the experiments,according to the time delay and the angle of Lamb wave signals analysed by Gabor wavelet transform,the experimental dispersive curves are obtained.Compared the two dispersive curves,the 3-D elastic theory could be proved efficient. |
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| Keywords: | Lamb wave 3-D elastic theory modeling propagational characteristics wavelet transform |
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