| 基于非协调模式的几何非线性广义杂交退化壳单元 |
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| 引用本文： | 郑世杰,朱德懋,陈万吉.基于非协调模式的几何非线性广义杂交退化壳单元[J].航空学报,1998,19(1):87-90. |
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| 作者姓名： | 郑世杰 朱德懋 陈万吉 |
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| 作者单位： | 1. 南京航空航天大学振动工程研究所, 南京, 210016;2. 大连理工大学工程力学系, 大连, 116023 |
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| 摘 要： | 依据一个在局部坐标系下放松单元间连续性要求的广义变分原理，建立了基于非协调模式的几何非线性广义杂交退化壳单元。数值结果表明，构造的四结点退化壳元拥有很好的性能，可避免各种自锁问题。
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| 关 键 词： | 几何非线性 非协调模式 广义杂交退化壳 |
| 收稿时间： | 1997-01-02 |
| 修稿时间： | 1997-08-30 |
GEOMETRICALLY NON-LINEAR GENERALIZED HYBRID DEGENERATED SHELL ELEMENT BASED UPON NON-CONFORMING MODES |
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| Zheng Shijie,Zhu Demao,Chen Wanji.GEOMETRICALLY NON-LINEAR GENERALIZED HYBRID DEGENERATED SHELL ELEMENT BASED UPON NON-CONFORMING MODES[J].Acta Aeronautica et Astronautica Sinica,1998,19(1):87-90. |
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| Authors: | Zheng Shijie Zhu Demao Chen Wanji |
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| Institution: | 1. Institute of Vibration Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing, 210016;2. Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116023 |
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| Abstract: | According to a generalized variational principle, which relaxes the inter element continuity requirements, a generalized hybrid degenerated shell element was first formulated by introducing incompatible modes. Numerical examples demonstrate that the four node degenerated shell element proposed in this article has excellent performance and can avoid all kinds of locking problems. |
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| Keywords: | geometrically non linearity incompatible modes generalized hybrid degenerated shell element |
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