首页> 外文期刊>Electronic Journal Technical Acoustics >Ultrasonic guided waves in tri-layer structure. Application to study the interaction of guided waves with hidden defect at low frequency
【24h】

Ultrasonic guided waves in tri-layer structure. Application to study the interaction of guided waves with hidden defect at low frequency

机译:三层结构的超声波导波。在研究导波与低频隐藏缺陷的相互作用中的应用

获取原文
           

摘要

The article presents a study of guided ultrasonic waves in a tri-layer structure formed of two aluminium plates assembled with a layer of epoxy resin. The resolution of the dispersion equation was used to plot the dispersion curves and to determine the energy distribution of a given mode propagating within the structure. On the other hand, the evaluation of the interaction of guided modes at low frequency with hidden defect placed either in one of the aluminium plates at the interface between aluminium and the adhesive layer was presented. The analyse of the reflected and transmitted waves in the dual space (wave number, frequency) permitted the separation and the identification of the propagating guided modes and showed the conversion phenomenon of the incident mode into other guided modes after the reflection and the transmission. Finally a quantification of the energy of the reflected and transmitted modes is presented.
机译:这篇文章介绍了由两块铝板和一层环氧树脂组成的三层结构中的引导超声波的研究。色散方程的分辨率用于绘制色散曲线并确定在结构内传播的给定模式的能量分布。另一方面,提出了在低频引导模式与铝和粘合剂层之间界面处的一个铝板中放置的隐藏缺陷的相互作用的评估。通过对双空间中反射波和透射波(波数,频率)的分析,可以分离和识别正在传播的导模,并显示出入射模在反射和透射后转换为其他导模的现象。最后,给出了反射和透射模式能量的量化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号