| 椭圆度对外压圆筒体屈曲临界载荷影响的初步分析 |
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| 引用本文： | 刘宏臣,胡津康,王泽军. 椭圆度对外压圆筒体屈曲临界载荷影响的初步分析[J]. 压力容器, 2006, 23(6): 27-29,51 |
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| 作者姓名： | 刘宏臣 胡津康 王泽军 |
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| 作者单位： | 天津市特种设备监督检验技术研究院,天津,300192 |
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| 摘 要： | 工程结构屈曲的有限元分析方法通常包括特征值分析、几何非线性分析和几何／材料双非线性分析三种方法。本文通过算例分析和对比，认为双非线性分析法可得出更合理的结果。系列计算表明，外压圆筒体屈曲临界压力值会随简体椭圆度的增加而明显降低。
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| 关 键 词： | 有限元 屈曲 分析方法 椭圆度 |
| 文章编号： | 1001-4837（2006）06-0027-03 |
| 收稿时间： | 2005-07-07 |
| 修稿时间： | 2005-07-072006-04-06 |
Preliminary Analysis on the Effect of Ellipticity on Buckling Load of Cylinders under External Pressure |
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| LIU Hong-chen,HU Jin-kang,WANG Ze-jun. Preliminary Analysis on the Effect of Ellipticity on Buckling Load of Cylinders under External Pressure[J]. Pressure Vessel Technology, 2006, 23(6): 27-29,51 |
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| Authors: | LIU Hong-chen HU Jin-kang WANG Ze-jun |
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| Affiliation: | Tianjin Special Equipment Supervision Inspection and Technology Research Institute, Tianjin 300192, China |
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| Abstract: | Three finite element analysis methods are normally employed in the buckling analysis of engineering structures, which are eigenvalue method, geometry nonlinear method and geometry - material nonlinear method respectively. Based on example analysis and results comparison, the geometry - material nonlinear method is considered as the most reasonable one. Series analysis showed that the critical buckling pressure of cylinder under external pressure could be obviously decreased with the increase of eUipticity of cylinders. |
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| Keywords: | finite element buckling analysis method ellipticity |
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