| 1. | Displacement distribution of longitudinal guided waves in composite pipes
复合管状结构中超声导波的位移分布
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| 2. | The recent advances in ultrasonic guided wave testing technique are summarized
摘要综述近年来超声导波检测研究的最新进展。
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| 3. | Approximation solution of characteristic equation of guide wave in a semicircle tunnel
半圆形隧道中导行波特征方程的近似求解
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| 4. | Frequency equation of axisymmetric guided waves in composite structures of bonding metal bars
锚固金属杆复合结构中轴对称导波的频散方程
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| 5. | The project just do research on using certain guided wave modes to detect the pipe flaw
本文正是针对这一课题深入研究了纵向超声导波技术及其检测管道缺陷的方法。
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| 6. | Ridge waveguide is a kind of guide wave sturcture that often used , which can be formed from rectangular waveguide
脊波导是一种常见的导波结构，它是矩形波导的一种变形。
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| 7. | Lastly , some new techniques of numerical analysis and signal processing for guided wave nondestructive testing are described
论述了导波检测技术领域中数值分析方法和信号处理方面的一些新技术。
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| 8. | Firstly , the disperse characteristics and the related theoretical results of the guided waves in different materials and distinct structures are introduced
介绍导波在不同材料和结构中的频散特性及与之相关的理论成果。
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| 9. | Applying classical wave theory , a concept of equivalent elastic modulus on propagation speed modification of guided wave through " variable cross - section " of metal bar embeded layer was put forward
摘要运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
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| 10. | These conceptions might be used for interpreting " time - lag " of signal and leveled phenomena of waveform - signals that were produced on time - domain figures in application of guided wave to operate nondestructive test
这一概念，可以解释运用导波进行无损检测得到的时域分析图中信号发生的“时滞”与波形拉平现象。
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