超声波脉冲在固-固界面传播的数值模拟分析  

Numerical Simulation of the Ultrasonic Pulse Wave Propagation at Solid-Solid Interface

作　　者：孙继华[1] 赵扬[1] 马健[1] 南钢洋[1] 刘帅[1] 巨阳[1] 

机构地区：[1]山东省科学院激光研究所/山东省无损检测工程技术研究中心,山东济南250103

出　　处：《压电与声光》2017年第1期140-143,共4页Piezoelectrics & Acoustooptics

基　　金：山东省科学院杰出青年计划基金资助项目(201505);济南市高校院所自主创新基金资助项目(201401220;201401209);山东省科学院青年基金资助项目(2015QN008)

摘　　要：为了直观地显示超声波脉冲在固-固界面的传播规律,建立了两种玻璃组成的固-固界面有限元模型,模拟了超声波脉冲在固-固界面的传播情况。通过不同时刻的波场快照图,清晰地显示出超声波脉冲在不同声学参数的两种固-固界面的传播情况,模拟得到的结果与理论和实验结果相符。模拟结果表明,通过有限元模拟方法正确的模拟了超声波脉冲在固-固界面中的传播过程,清晰地观察到了在界面上形成的复杂声场情况,模拟结果可为超声无损检测技术在检测参数选择、缺陷特征提取等方面提供一定的参考。In order to visually display the propagation of ultrasonic pulse wave along the solid-solid interface,a finite element model with two kinds of glass was developed to simulate the ultrasonic propagation at solid-solid interface.The snapshots clearly display the ultrasonic propagation along the solid-solid interface with two kinds of glass.The simulation results are in agreement with the theoretical and experimental results.The simulation showed that the finite element simulation method can properly display the propagation of ultrasonic pulse wave at the solid-solid interface,and can observe clearly the complex sound field formed at the interface,so it may offer some reference for ultrasonic nondestructive testing technology in selecting the best testing parameters and defects feature extraction.

关 键 词：固-固界面 超声波脉冲 有限元数值模拟 缝隙 波场快照 

分 类 号：TN78[电子电信—电路与系统] O426.2[理学—声学]