| 构造含结点旋转单元的坐标变换法 |
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| 引用本文： | 段春生.构造含结点旋转单元的坐标变换法[J].沈阳航空工业学院学报,1997,14(1):7-10. |
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| 作者姓名： | 段春生 |
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| 摘 要： | Ａｌｌｍａｎ提出了带角结点旋转的三角形单元及相应的四边形单元，法向位移的二次插值保证了该单元的精度，但带来了构成单元的复杂。本文把Ａｌｌｍａｎ单元看成是对一个有边中结点单元进行坐标变换的结果，大大提高了计算效率。
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| 关 键 词： | 结点旋转 坐标变换 刚度矩阵 有限元 |
Coordinate Tranformation to Construct Element with Vertex Rotations |
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| Duan Chunsheng.Coordinate Tranformation to Construct Element with Vertex Rotations[J].Journal of Shenyang Institute of Aeronautical Engineering,1997,14(1):7-10. |
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| Authors: | Duan Chunsheng |
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| Institution: | Duan Chunsheng |
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| Abstract: | Allman has introdced triangular and quadrilateral element including vertex rotations.Tests show the elements to be of acceptable accuracy but complex constructing. In Presentpaper the Allman element is regarded as a result of applying a coordinate transformation toan element that has midside nodes. This method is simple and efficient. |
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| Keywords: | vertex rotations coordinate transformation stiffness matrix |
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