| 系留气球压差与球体应力变化关系研究 |
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| 引用本文： | 何泽青,顾逸东,王生,张向强.系留气球压差与球体应力变化关系研究[J].计算机仿真,2009,26(2). |
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| 作者姓名： | 何泽青 顾逸东 王生 张向强 |
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| 作者单位： | 1. 中国科学院研究生院,北京,100049;中国科学院光电研究院,北京,100080
2. 中国科学院光电研究院,北京,100080 |
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| 摘 要： | 针对系留气球球体压差变化和球体应力变化之间的关系进行研究.对球体受力情况进行简化,采用微元受力分析的方法进行应力分析,得出球体应力的理论解.采用有限元软件对无附加结构的球体进行应力分析并同球体应力的理论解进行对比,验证了有限元软件计算结果的可靠性.利用有限元方法在不同压差情况下对球体应力进行分析,确定了其高应力区域的范围和数值.需要指出的是采用膜单元比采用通常的薄壳单元进行应力分析更贴近实际情况.上述结果为球体气囊的结构设计、强度设计提供依据.
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| 关 键 词： | 系留气球 有限元分析 膜单元 |
Research on the Relation between the Change of Membrane Stress Arises and the Change of Interior Differential Pressure of Tethered Aerostats |
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| HE Ze-qing,GU Yi-dong,WANG Sheng,ZHANG Xiang-qiang.Research on the Relation between the Change of Membrane Stress Arises and the Change of Interior Differential Pressure of Tethered Aerostats[J].Computer Simulation,2009,26(2). |
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| Authors: | HE Ze-qing GU Yi-dong WANG Sheng ZHANG Xiang-qiang |
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| Affiliation: | 1. Graduate University of Chinese Academy of Sciences;Beijing 100049;China;2. Opto-electronics Chinese Academy of Sciences;Beijing 100080;China |
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| Abstract: | The relation between the change of membrane stress arises and the change of interior differential pressure of tethered aerostats is studied in this paper. Firstly,the forcing state of tethered aerostat is simplified,the stress of the balloon is calculated by analyzing the tiny element,and then the theoretical result of the balloon is gained. Secondly,finite element software is used to analyze the stress of the balloon without any other adjunctive structure,the comparison between the result above and theoret... |
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| Keywords: | Tethered aerostats Finite element analysis Membrane element |
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