| 加肋开孔柱壳混合有限条——有限元屈曲分析 |
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| 引用本文： | 陈文 任文敏. 加肋开孔柱壳混合有限条——有限元屈曲分析[J]. 应用力学学报, 1996, 13(2): 128-131 |
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| 作者姓名： | 陈文 任文敏 |
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| 作者单位： | 清华大学 |
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| 摘 要： | 本文提出了一种分析环加肋开孔柱壳屈曲问题的混合有限条──有限元法。环加肋柱壳作为一个构造上的正交各向异性壳处理，柱壳非开孔区采用有限条元离散，开孔区采用有限单元离散。在有限条元与有限单元交界面上，根据位移协调条件建立条元和单元的耦合关系，并据此构造一种特殊的过渡单元、联接条元和单元，进行整体分析。算例表明，这一方法对开孔柱壳屈曲问题的分折十分有效。
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| 关 键 词： | 开孔柱壳；屈曲；有限条法；有限元法 |
Ring-Stiffened Cylindrical Shells with Cutouts Buckling Analysis by Mixed Finite Strip and Finite Element Method |
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| Chen Wen, Ren Wenmin, Zhang Wei. Ring-Stiffened Cylindrical Shells with Cutouts Buckling Analysis by Mixed Finite Strip and Finite Element Method[J]. Chinese Journal of Applied Mechanics, 1996, 13(2): 128-131 |
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| Authors: | Chen Wen Ren Wenmin Zhang Wei |
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| Affiliation: | Department of Engineering Mechanics. Tsinghua University |
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| Abstract: | An efficient method for analysing the buckling of ring-stiffened cylindrical shells with localizedcutouts is proposed. The method is termed as the mixed finite strip and finite element method. The area of the shell without cutouts is analysed by finite strip method and the area with cutouts is analysed by finite element method. The two areas are connected by specially designed transient elements.Numerical examples show that this method is very effective, efficient and accurate. |
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| Keywords: | cylindrical shells with cutouts buckling finite strip method finite element method |
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