冯文杰, 邹振祝, 马兴瑞. 二维逆Born近似方法对正方形和圆形缺陷的重建[J]. 工程力学, 1994, 11(2): 105-109.
引用本文: 冯文杰, 邹振祝, 马兴瑞. 二维逆Born近似方法对正方形和圆形缺陷的重建[J]. 工程力学, 1994, 11(2): 105-109.
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Feng Wenjie, Zou Zhenzho, Ma Xingrui. RECONSTRUCTIONS OF SQUARE AND CIRCLE SHAPED FLAWS BASED ON INVERSE BORN APPROXIMATION[J]. Engineering Mechanics, 1994, 11(2): 105-109.
Citation: Feng Wenjie, Zou Zhenzho, Ma Xingrui. RECONSTRUCTIONS OF SQUARE AND CIRCLE SHAPED FLAWS BASED ON INVERSE BORN APPROXIMATION[J]. Engineering Mechanics, 1994, 11(2): 105-109.
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二维逆Born近似方法对正方形和圆形缺陷的重建

RECONSTRUCTIONS OF SQUARE AND CIRCLE SHAPED FLAWS BASED ON INVERSE BORN APPROXIMATION

    摘要
  • 摘要: 通过分析平面简谐纵波入射二维散射系统散射场远场Born近似解纵波部分的固有性态,给出了二维Fourier变换法建立散射区域(缺陷)的特征函数与散射场Born近似解形状因子联系的关系式,并对钛合金中正方形铝夹杂和圆形孔穴分别进行了计算机模拟识别。本文的研究对定量无损探伤技术(QNDT)具有重大的理论和应用价值。

     

    Abstract: On the basis of the intrinsical performance of the frequency domain Born approximate solution for the scattering of two dimentional elastic wave,the relation between the characteristic function and the shape factor is given by two dimentional Fourier transform. Finally,simulated identification is performed for two shapes of defects on computer.

     

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