| 一种求解兰姆波特征方程的方法 |
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| 引用本文： | 倪园,程建政,张德俊.一种求解兰姆波特征方程的方法[J].无损检测,2008,30(8). |
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| 作者姓名： | 倪园 程建政 张德俊 |
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| 作者单位： | 倪园,张德俊,NI Yuan,ZHANG De-Jun(中国科学院,武汉物理与数学研究所,武汉,430071);程建政,CHENG Jian-Zheng(武汉科技学院,武汉,430073) |
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| 摘 要： | 给出了兰姆波的原始特征方程式,以相速度为自变量,求解兰姆波特征方程。通过Matlab软件对求解过程进行编程,绘制出兰姆波在钢板中传播的频散曲线,以此作为进行无损检测的重要依据。
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| 关 键 词： | 兰姆波 特征方程 频散曲线 相速度 |
A Method of Calculation for Lamb Wave Characteristic Equation |
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| NI Yuan,CHENG Jian-Zheng,ZHANG De-Jun.A Method of Calculation for Lamb Wave Characteristic Equation[J].Nondestructive Testing,2008,30(8). |
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| Authors: | NI Yuan CHENG Jian-Zheng ZHANG De-Jun |
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| Affiliation: | 1(1. Wuhan Institute of Physics and Mathematics; the Chinese Academy of Sciences; Wuhan 430071; China; 2. Wuhan University of Science and Engineering; Wuhan 430073; China); |
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| Abstract: | Lamb wave characteristic equation was given. In order to find the zero point of Lamb wave characteristic equation, the phase velocity was be treated as the independently variable. The algorithm was realized with Matlab, and the frequency dispersion curves of Lamb wave propagating in steel were plotted. It is of significance for practical application of Lamb waves in engineering. |
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| Keywords: | Lamb wave Characteristic equation Dispersion curves Phase velocity |
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