| 平面斜边界问题的边界元分析 |
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| 引用本文： | 温卫东
,高德平.平面斜边界问题的边界元分析[J].南京航空航天大学学报,1987(4). |
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| 作者姓名： | 温卫东 高德平 |
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| 摘 要： | 本文对处理斜边界问题的边界元法的方程进行了推导和分析,通过引入局部坐标系,建立局部坐标与总坐标间的变换关系,使边界元法在处理结构斜边界问题中更为简捷方便。通过几个算例及某发动机叶片燕尾形榫头的应力分析,证明结果是令人满意的,尤其在计算边界应力时,边界元法比有限元法更为精确。
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| 关 键 词： | 有限元 应力分析 叶片 计算方法 边界元 |
The Boundary Element Method(BEM) for Two-Dimensional Inclined Boundary Problems |
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| Wen Weidong Gao Deping.The Boundary Element Method(BEM) for Two-Dimensional Inclined Boundary Problems[J].Journal of Nanjing University of Aeronautics & Astronautics,1987(4). |
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| Authors: | Wen Weidong Gao Deping |
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| Institution: | Wen Weidong Gao Deping |
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| Abstract: | The equations of the BEM for the inclined boundary problems are derived and analysed in this paper. By the introduction of local coordinates, the transformation relation between, local coordinates and absolute coordinates is established. It makes the BEM simpler and easier when it is applied to the problems of the inclined boundary of structures. Several examples and the stress analysis of dovetail joint of the engine blade show that the results are satisfactory. The results of BEM are more precise than those of FEM, particularly in the calculation of .structural boundary stresses. |
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| Keywords: | finite element stress analysis blades computational method boundary element |
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