考虑结构性能和节点连接模式正则化的自由形式网壳结构寻形

Toshiaki Kimura, Hiroki Takeuchi
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引用次数: 0

摘要

在这项研究中,我们提出了一种既考虑结构性能又考虑节点连接模式正则化的自由成形网壳结构的寻形方法。网格壳的节点坐标在非均匀有理b样条(NURBS)曲面上表示。根据主曲率,聚类将节点连接模式划分为特定的组。以最小应变能和最大簇间偏差为目标进行多目标优化。采用多目标遗传算法求解优化问题。通过数值算例对所得到的最优解的力学性能进行了讨论,验证了所提方法的有效性。
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Form-Finding for Free-Form Reticulated Shell Structure Considering Structural Performance and Regularization of Node Connection Patterns
In this study, we propose a form-finding method for the free-formed reticulated shell structure, considering both structural performance and regularization of node connection patterns. The coordinates of the nodes of the reticulated shells are represented on the non-uniform rational B-spline (NURBS) surface. According to the principal curvature, the clustering classifies the node connection patterns into specified groups. Multi-objective optimization is performed to minimize the strain energy and maximum deviation in clusters. A multi-objective genetic algorithm is used to solve the optimization problem. The mechanical properties of the optimal solution obtained in a numerical example are discussed to confirm the effectiveness of the proposed method.
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来源期刊
CiteScore
1.40
自引率
0.00%
发文量
17
期刊介绍: The Association publishes an international journal, the Journal of the IASS, four times yearly, in print (ISSN 1028-365X) and on-line (ISSN 1996-9015). The months of publication are March, June, September and December. Occasional extra electronic-only issues are included in the on-line version. From this page you can access one or more issues -- a sample issue if you are not logged into the members-only portion of the site, or the current issue and several back issues if you are logged in as a member. For any issue that you can view, you can download articles as .pdf files.
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