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    Lamb波传播特性研究
    Study of Propagational Characteristics of Lamb Wave
      
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    中文摘要:
          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.
    英文摘要:
          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.
    张恒萍  朱传焕
    中国舰船研究设计中心,湖北武汉430064
    中文关键词:  Lamb波  三维弹性理论  建模  传播特性  小波变换
    英文关键词:Lamb wave  3-D elastic theory  modeling  propagational characteristics  wavelet transform  
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