| 杆件分组和网格密度对网壳截面优化结果影响 |
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| 引用本文： | 陈世英,鹿晓阳,朱海燕.杆件分组和网格密度对网壳截面优化结果影响[J].力学与实践,2011,33(2):71-74. |
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| 作者姓名： | 陈世英 鹿晓阳 朱海燕 |
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| 作者单位： | 1. 山东建筑大学;2. 济南山东建筑工程学院工程力学研究所，250101;3. 上海汉沙扬建筑咨询设计有限公司; |
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| 基金项目： | 山东省研究生教育创新计划资助项目(SDYY08038) |
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| 摘 要： | 针对跨度为50\,m, 矢跨比为1/5的单层凯威特K6型球面网壳结构, 对6种杆件分组方式、
7种网格划分密度的42个网壳模型进行截面优化分析, 得出了与以往截面优化不同的、优化
效果更好的杆件分组方式和网格划分密度取值建议, 优化过程充分考虑了网壳结构强
度、刚度和整体稳定性, 使优化结果更具有工程实用价值. 可为工程设计人员提
供有益的参考.
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| 关 键 词： | 单层网壳结构 截面优化 杆件分组 网格密度 |
| 收稿时间： | 2010-08-10 |
THE EFFECT OF BAR GROUP AND MESH DENSITY ON SHELL OPTIMIZATION DESIGN FOR CROSS SECTION |
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| CHEN Shiying
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LU Xiaoyang
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ZHU Haiyan.THE EFFECT OF BAR GROUP AND MESH DENSITY ON SHELL OPTIMIZATION DESIGN FOR CROSS SECTION[J].Mechanics and Engineering,2011,33(2):71-74. |
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| Authors: | CHEN Shiying LU Xiaoyang ZHU Haiyan |
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| Institution: | CHEN Shiying(*,2) LU Xiaoyang* ZHU Haiyan* *(Shandong Jianzhu University,Jinan 250101,China) +(Shanghai Hanshayang Construction Consulting Design Co.,Ltd.,Shanghai 200001,China) |
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| Abstract: | In this paper, the sectional optimization with the lightest
weight of the shell structure as the objective function is carried out
by using two level optimization methods based on discrete variables and the style of
bar group and the effect of different mesh densities on optimal results are mainly
considered. In the course of the optimization procedure, integral stability
constraints are shown to be good for practical engineering.
For K6 type of single-layer shell structure with span of 50\,m and rise-span
ratio of 1/5, 42 shell models with six different bar groups and seven
different mesh densities were built and optimized. Finally, an new and better
choice of bar group and mesh density is obtained. |
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| Keywords: | single-layer shell structure sectional optimization bar group |
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