文章基本信息

标题：Evaluating Topological Optimized Layout of Building Structures by Using Nodal Material Density Based Bilinear Interpolation
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作者：Dongkyu Lee ; Jaehong Lee ; Kihak Lee 等
期刊名称：Journal of Asian Architecture and Building Engineering
印刷版ISSN：1346-7581
电子版ISSN：1347-2852
出版年度：2014
卷号：13
期号：2
页码：421-428
DOI：10.3130/jaabe.13.421
语种：English
出版社：日本建築学会、大韓建築学会、中国建築学会
摘要：This study presents a boundary representation of Eulerian-type in order to achieve conceptual structural layouts of building structures by relieving material discontinuities of structural topology optimization in comparison with classical ones. According to the partition of unity concept, a bilinear interpolation can be employed by nodal densities and shape functions with the use of discretization of four-node square elements and then material properties, i.e. here, densities in finite elements are not constant but variational values. As a result, the improvement of material continuity can be established as optimal topologies, and numerical singularity and zigzag material boundaries which may occur in classical topology optimization design are relieved. Numerical applications verify the efficiency of this method by evaluating this conceptual structural layout approach for designing building structures.
关键词：material topology optimization;bilinear interpolation;nodal density;conceptual structural layout