Modeling of ultrasonic testing in butt joint by ray tracing
Modeling of ultrasonic testing in butt joint by ray tracing
复制标题
通过射线追踪对对接接头超声检测进行建模
DOI：
10.1007/bf03185104
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Y. Nam
中科院分区：
文献类型：
--
作者：
Y. Nam
对超声波的产生和传播进行了模拟。采用射线模型进行建模。采用超声可视化的方法对角度探头入射波的实际声压分布进行分析，将实际声压分布纳入模型。在该方法中，声压由射线密度和超声光束的反射系数表示。用斯涅尔定律计算了光线的反射和模式转换。利用该射线模型建立了对接接头超声检测问题的仿真程序。超声检测中超声波散射和a扫描显示的仿真结果与实际实验结果吻合较好。
Ultrasonic wave generation and propagation were modeled to simulate an ultrasonic test. A ray model was used for the modeling. Actual sound pressure distribution of the incident wave from an angle probe was analyzed using an ultrasonic visualization method to incorporate the actual sound pressure distribution in the model. In this method, the sound pressure was expressed by the density of rays and the reflection coefficient of ultrasonic beams. Reflection and mode conversion of rays were computed by the Snell’s law. Simulation programs for the problem of ultrasonic testing of a butt joint are built using this ray modeling. Simulation results for ultrasonic wave scattering from a defect and A-scan display in ultrasonic testing agreed with the actual experiment results.