脉冲中兰姆波分量的相速度和群速度

1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027) Pub Date : 1999-10-17 DOI:10.1109/ULTSYM.1999.849526

E. Moreno, M. Castillo, P. Acevedo

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引用次数: 1

摘要

本文用傅里叶-拉普拉斯变换求解拉梅方程，对脉冲在平板中的传播进行了理论和实验研究。结果表明，脉冲是由三个具有各自色散关系的基本分量组成的。其中一个分量是在实验中发现的不对称兰姆波。

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Phase and group velocity in components of Lamb waves in pulses

This paper describes a theoretical and experimental study of the pulse propagation in plates, using Fourier-Laplace transform for the solution of Lame equations. It is shown that a pulse in a plate is formed by three fundamental components with its own dispersion relation. One of these components is the antisymmetrical Lamb wave, which is identified in the experiments.

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1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027)

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