| 缺陷识别中的逆Born近似方法 |
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| 引用本文： | 冯文杰,马兴瑞.缺陷识别中的逆Born近似方法[J].振动工程学报,1994,7(2):167-171. |
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| 作者姓名： | 冯文杰 马兴瑞 |
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| 作者单位： | 石家庄铁道学院基础部，哈尔滨工业大学航天工程与力学系 |
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| 摘 要： | 利用平面简谐纵波对二维散射远场Ｂｏｒｎ近拟解，给出了二维Ｆｒｏｕｒｉｅｒ变换法建立散射体（缺陷）的特征函数与形状因子的关系式，对钛合金中正方形铝夹杂和圆形孔穴分别进行计算机模拟识别，结果表明这种方法对定量无损检测技术有理论和应用价值。
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| 关 键 词： | 弹性波散射 逆Born近似，识别方法 无损检验 缺陷 |
Identification of Flaws Based on Inverse Born Approximation |
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| Feng Wenjie.Identification of Flaws Based on Inverse Born Approximation[J].Journal of Vibration Engineering,1994,7(2):167-171. |
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| Authors: | Feng Wenjie |
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| Abstract: | On the basis of the intrinsical qualities of the frequency domain Born approximate solution to the scattering of two dimensional elastic wave, the relation between the characteristic function and the shape factor is given by two dimensional Faourier transform. Finally, two kinds of naws (square Al in Ti and circular cavity in Ti) are simulated on computer. |
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| Keywords: | scattering of elastic wave inverse Born aproximation method of identification non-destructive flaw detection flaws |
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