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Defect Detection Of The Segmental Spherical Shell Based On Ultrasonic Transducer Array

机译:基于超声换能器阵列的节段球形壳体的缺陷检测

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摘要

It is of great significance to monitor and quantify the defects in the thin segmental spherical shell components. In the paper the guided wave's inspiring method has been obtained from the wave-mode conversion based on the theory of the guided wave propagating in the thin spherical shell. Using the wavelet to process the testing signal, and the ellipse localization imaging algorithm, the defect's localization and orientation can be detected accurately. Experimental results show the defect's direction and location can be detected effectively and clearly.
机译:监测和量化薄节段球形壳组分中的缺陷是具有重要意义。在本文中,基于薄球壳中传播的引导波理论,从波模式转换获得了引导波的鼓动方法。使用小波处理测试信号,以及椭圆定位成像算法,可以精确地检测缺陷的本地化和方向。实验结果表明,可以有效清楚地检测缺陷的方向和位置。

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