| 瞬态应力波对复杂截面形状地下孔洞的三维散射 |
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| 引用本文： | 朱建雄,李国豪.瞬态应力波对复杂截面形状地下孔洞的三维散射[J].同济大学学报(自然科学版),1990,18(2):139-148. |
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| 作者姓名： | 朱建雄 李国豪 |
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| 作者单位： | 同济大学工程力学系 博士(朱建雄)，同济大学工程力学系 博士导师(李国豪，曹志远) |
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| 摘 要： |
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| 关 键 词： | 瞬态 应力波 截面 孔洞 散射 地下 |
Diffraction of a Pressure Wave by a Three-dimensional Cavity of Arbitrary Shaped Section in an Elastic Medium |
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| Zhu Jianxiong Li Cuohao Cao Zhiyuan.Diffraction of a Pressure Wave by a Three-dimensional Cavity of Arbitrary Shaped Section in an Elastic Medium[J].Journal of Tongji University(Natural Science),1990,18(2):139-148. |
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| Authors: | Zhu Jianxiong Li Cuohao Cao Zhiyuan |
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| Institution: | Department of Engineering Mechanics |
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| Abstract: | In this paper, a new coordinate transformation function is presented in order to extend the application of the semi-analytical boundary element method to analyze three dimensional cavity of arbitrary shaped section. A three-dimensional cavity with arbitrary shaped section in an elastic medium can be mapped approximately in a cylindrical cavity with the help of the coordinate transformation function. The coordinate transformation method as compared with the other methods has many advantages. It requires only the coordinates of some boundary nodes of the mapped cavity. The number of node coordinate of the boundary can be increased, in order to improve the coordinate transformation accuracy. The availability of this method for analyses of three-dimensional cavity has been proved by the research results. |
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| Keywords: | Transient wave Semi-analytical boundary element method Coordinate transformation |
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