IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Jul;58(7):1525-8. doi: 10.1109/TUFFC.2011.1971.
In clad rods, the dispersion properties of firstorder flexural [F(1, 1)] modes can differ from other modes. Normal and Stoneley modes and the existence criteria for four F(1, 1) modes are investigated. We focus on low-frequency anomalous dispersion, which occurs only in F(1, 1) modes and is sensitive to shear velocity.
在 clad 杆中，一阶弯曲 [F(1, 1)] 模式的色散特性可能与其他模式不同。本文研究了正常和斯通利模式以及四种 F(1, 1) 模式的存在条件。我们关注低频异常色散，这种色散仅在 F(1, 1) 模式中出现，并且对剪切速度敏感。
