Design of self-supporting surfaces with isogeometric analysis
Design of self-supporting surfaces with isogeometric analysis
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使用等几何分析的自支撑表面设计
DOI:
10.1016/j.cma.2019.05.030
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发表时间:
2019-08
影响因子:
7.2
通讯作者:
Wang Wenping
中科院分区:
文献类型:
--
作者:
Xia Yang;Mantzaflaris Angelos;Juttler Bert;Pan Hao;Hu Ping;Wang Wenping
Self-supporting surfaces are widely used in contemporary architecture, but their design remains a challenging problem. This paper aims to provide a heuristic strategy for the design of complex self-supporting surfaces. In our method, non-uniform rational B-spline (NURBS) surfaces are used to describe the smooth geometry of the self-supporting surface. The equilibrium state of the surface is derived with membrane shell theory and Airy stresses within the surfaces are used as tunable variables for the proposed heuristic design strategy. The corresponding self-supporting shapes to the given stress states are calculated by the nonlinear isogeometric analysis (IGA) method. Our validation using analytic catenary surfaces shows that the proposed method finds the correct self-supporting shape with a convergence rate one order higher than the degree of the applied NURBS basis function. Tests on boundary conditions show that the boundary’s influence propagates along the main stress directions in the surface. Various self-supporting masonry structures, including models with complex topology, are constructed using the presented method. Compared with existing methods such as thrust network analysis and dynamic relaxation, the proposed method benefits from the advantages of NURBS-based IGA, featuring smooth geometric description, good adaption to complex shapes and increased efficiency of computation.
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DOI:
10.1007/978-1-4613-4277-9_4
发表时间:
1976
期刊:
--
影响因子:
--
作者:
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通讯作者:
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DOI:
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发表时间:
2012-07
期刊:
ACM Transactions on Graphics (TOG)
影响因子:
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作者:
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DOI:
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发表时间:
2021
期刊:
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1115/1.3423754
发表时间:
1975-12
期刊:
Journal of Applied Mechanics
影响因子:
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通讯作者:
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DOI:
10.1016/0016-0032(60)90299-4
发表时间:
2012
期刊:
--
影响因子:
--
作者:
Liping Liu
通讯作者:
Liping Liu