Propagation characteristics of longitudinal ultrasonic guided waves of steel rod embedded in infinite medium are studied in theory.
从理论上分析高频纵向超声导波在埋于无限大介质中钢杆传播的特性。
Our theoretical analysis produces the dispersion curves of longitudinal modes of ultrasonic guided waves in liquid-filled pipes with viscoelastic coatings.
理论分析得到了带粘弹性包覆层充液管道中纵向模态的频散曲线。
Axially symmetric longitudinal mode guided waves are more sensitive to the circumferential crack defects, which is basically consistent with the theoretical analysis.
轴对称的纵向模态导波对于周向裂纹缺陷较为敏感，这与模拟结果比较接近。
According to the simulated numerical results, the longitudinal mode guided waves at different frequencies were excited in the experiments.
参照数值计算结果，实验中采用不同频率激励纵向模态导波。
According to the simulated numerical results, the longitudinal mode guided waves at different frequencies were excited in the experiments.
参照数值计算结果，实验中采用不同频率激励纵向模态导波。
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