| 用二维逆Born近似法对杆中圆形缺陷的反演 |
| |
| 引用本文： | 吴斌,郑钢丰,何存富.用二维逆Born近似法对杆中圆形缺陷的反演[J].应用力学学报,2006,23(4):572-576. |
| |
| 作者姓名： | 吴斌 郑钢丰 何存富 |
| |
| 作者单位： | 北京工业大学,北京,100022 |
| |
| 基金项目： | 国家自然科学基金;北京市自然科学基金;北京市教委资助项目 |
| |
| 摘 要： | 在三维弹性波散射问题的Born近似解基础上,进一步分析了在纵波入射条件下二维散射问题的Born近似解,对铝质长杆中的椭圆形空穴缺陷的散射场情况进行了对比分析;最后,提出了在低频下识别缺陷几何特征的二维逆Born近似法,并用此法对铝质长杆中的圆形空穴缺陷作了计算机模拟。
|
| 关 键 词： | Born近似 形状因子 特征函数 反演 散射 |
| 文章编号： | 1000-4939（2006）04-0572-05 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-242006-03-20 |
Inversion of Circular Shaped Flaw in Rod with Inverse Born Approximation |
| |
| Wu Bin,Zheng Gangfeng,He Cunfu.Inversion of Circular Shaped Flaw in Rod with Inverse Born Approximation[J].Chinese Journal of Applied Mechanics,2006,23(4):572-576. |
| |
| Authors: | Wu Bin Zheng Gangfeng He Cunfu |
| |
| Abstract: | According to the Born approximation solution of the scattering of three-dimensional elastic waves,the scattering from an ellipse void in a long Al rod is analyzed comparatively.And the identification of flaw geometrical character is discussed with two dimensional inverse Born approximation under low frequency,the corresponding simulation for circular void is carried out. |
| |
| Keywords: | born approximation shape factor characteristic function inversion scattering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
