| 薄膜结构的几何非线性分析 |
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| 引用本文： | 张华,周星德,单建.薄膜结构的几何非线性分析[J].应用力学学报,2004,21(2):106-109. |
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| 作者姓名： | 张华 周星德 单建 |
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| 作者单位： | 1. 河海大学,南京,210098
2. 东南大学,南京,210096 |
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| 基金项目： | 河海大学科技创新基金资助项目 ( 2 0 0 3 4110 43 ) |
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| 摘 要： | 使用动力松弛法对薄膜结构进行静载分析，并提出一种方法处理皱折单元以确保荷载分析的可靠性。薄膜结构如果在某膜单元的单向应力方向发生皱折，其单元本身仍然能够继续承受荷载，因此提出索松弛单元和膜皱折单元处理薄膜的索松弛和膜皱折问题。就索网结构和薄膜结构分类给出算例进行静载分析，算例表明本文的方法可以有效处理索松弛单元和膜皱折单元，确保荷载分析的准确性。
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| 关 键 词： | 薄膜结构 几何非线性分析 皱折处理 动力松弛法 结构力学 |
| 文章编号： | 1000-4939(2004)02-0106-04 |
Geometrically Nonlinear Analysis of Membrane Structures |
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| Zhang Hua,Zhou Xingde,Shan Jian.Geometrically Nonlinear Analysis of Membrane Structures[J].Chinese Journal of Applied Mechanics,2004,21(2):106-109. |
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| Authors: | Zhang Hua Zhou Xingde Shan Jian |
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| Institution: | Zhang Hua 1 Zhou Xingde 1 Shan Jian 2 |
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| Abstract: | Static performance of pretensioned membrane structures are analyzed by dynamic relaxation method and an effective method for solving the cable slacking and the membrane wrinkling is developed in this paper. If the wrinkling occurs only in the single stress direction of some element, this element remains in forces. So the cable slacking element and the membrane wrinkling element are presented. Examples are given for analyzing the static performance of the cable net and the membrane structure respectively. The results show this method can deal with the cable slacking and membrane wrinkling to assure the reliability of stress analysis under loading. |
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| Keywords: | membrane structures dynamic relaxation method geometrically nonlinear the membrane wrinkling |
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