| 空间充气支撑管的轴压屈曲分析 |
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| 引用本文： | 周涛,谢志民,杜星文. 空间充气支撑管的轴压屈曲分析[J]. 齐齐哈尔大学学报(自然科学版), 2007, 23(2): 88-92 |
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| 作者姓名： | 周涛 谢志民 杜星文 |
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| 作者单位： | 齐齐哈尔大学机械工程学院,黑龙江,齐齐哈尔161006;哈尔滨工业大学复合材料与结构研究所,哈尔滨,150001 |
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| 摘 要： | 将用于空间的Kapton-Al-Kapton充气展开支撑管视为圆柱薄壳,将其初始折痕、褶皱作为初始几何缺陷,采用奇异摄动法研究初始几何缺陷对屈曲荷载和后屈曲平衡路径的影响。结果表明,初始几何缺陷降低了充气支撑管的屈曲载荷,但不同的几何参数与屈曲模态下,充气支撑管对缺陷的敏感度是不同的。
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| 关 键 词： | 充气结构 屈曲 后屈曲 奇异摄动法 |
| 文章编号： | 1007-984X(2007)02-0088-05 |
| 修稿时间： | 2006-10-18 |
Analyze on the axial-loading buckling of the space inflatable tube |
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| ZHOU Tao,XIE Zhi-min,DU Xing-wen. Analyze on the axial-loading buckling of the space inflatable tube[J]. Journal of Qiqihar University(Natural Science Edition), 2007, 23(2): 88-92 |
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| Authors: | ZHOU Tao XIE Zhi-min DU Xing-wen |
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| Affiliation: | 1. Mechanical Engineering College, Qiqihar University, Heilongiiang Qiqihar 161006, China; 2. Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | In this paper the Kapton-Al-Kapton surporting pipe used in space,which is filled with gas for unfolding,is taken as cylinder thin shell,its initial folding faults and wrinkles are considered as initial geometric deficiency,the singular perturbation technique was applied to research the effects of initial geometrical defects on buckling load and post-buckling equilibrium path.The results indicated that the initial geometrical deficiency reduced buckling load of supporting pipe aerated,but the supporting pipe aerated has the different sensibility to deficiency under different geometrical parameters and buckling modes. |
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| Keywords: | inflatable structure buckling postbuckling singular perturbation technique |
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