| 考虑面力密度的力法找形和预应力精确确定 |
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| 引用本文： | 夏劲松,关富玲,李刚.考虑面力密度的力法找形和预应力精确确定[J].应用力学学报,2005,22(3):414-418. |
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| 作者姓名： | 夏劲松 关富玲 李刚 |
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| 作者单位： | 1. 浙江大学,杭州,310027
2. 嘉兴学院,嘉兴,314001 |
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| 基金项目： | 国家自然科学基金资助项目(69982009) |
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| 摘 要： | 随着膜结构应用领域的拓宽,实践对膜结构形状的构造提出了各种不同的要求。考虑膜单元的面力密度的力法找形方法,通过调整面力密度能够获得不同形状的曲面。对索膜结构找力分析的优化复位平衡法,能够对给定的拓扑曲面求解获得精确的自平衡预应力分布。把面力密度的力法找形和优化的复位平衡法的找力分析结合起来,能够完成形状构造的全过程,丰富了索膜结构的形状构造理论。
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| 关 键 词： | 索膜结构 面力密度 力法 找形 找力分析 优化的复位平衡法 |
| 文章编号： | 1000-4939（2005）03-0414-05 |
| 收稿时间： | 2004-04-20 |
| 修稿时间： | 2004-04-202005-01-10 |
Force Method of Surface Force Density with Applications to Tensility Structures |
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| Xia Jinsong,Guan Fuling,Li Gang.Force Method of Surface Force Density with Applications to Tensility Structures[J].Chinese Journal of Applied Mechanics,2005,22(3):414-418. |
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| Authors: | Xia Jinsong Guan Fuling Li Gang |
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| Institution: | Xia Jinsong~1 Guan Fuling~1 Li Gang~2(Zhejiang University Hangzhou 310027)~1(Jiaxing College Jiaxing 314001)~2 |
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| Abstract: | With the wider applications of membrane structures,the requirements to shape design become more multifarious.The force method,which is introduced the concept of surface force density of membrane element,is used to find the form of tensility strcutres.This method enables to quickly find the individual form to different force density under the same boundary conditions.The optimized reposition balance method for force-finding analysis usually is employed to accurately evaluate the self-balance prestress of tensility structures.So a combination of the force method of surface force density with the optimized reposition balance method,facilitates completing whole process of shape design. |
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| Keywords: | tensility structures surface force density force method form-finding force-finding analysis optimized reposition balance method |
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