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针对单一模式导波入射的情况 ,利用混和边界元模型计算了斜面型散射区域的反射系数和透射系数与各种入射模式、入射频率以及斜面倾角变化的关系 ,研究了在单一模式导波入射时导波与散射体的相互作用。文章的结果可以用来提高大量实际的无损检测工程中的检测灵敏度与能量的穿透能力 ,尤其是在那些发生了斜面状厚度变化波导中的情形。
Aiming at the incidence of a single mode guided wave, the relationship between the reflection coefficient and the transmission coefficient of the inclined scattering region and the variation of incident modes, incident frequencies and inclinations was calculated by using the mixed boundary element model. Guided wave and scatterer interaction. The results of this paper can be used to improve the detection sensitivity and energy penetration in a large number of practical non-destructive testing projects, especially in those cases in which a slant thickness-varying waveguide has occurred.