Efficient r-adaptive isogeometric analysis with Winslow's mapping and monitor function approach
Efficient r-adaptive isogeometric analysis with Winslow's mapping and monitor function approach
复制标题
使用 Winslow 映射和监控函数方法进行高效的 r 自适应等几何分析
DOI:
10.1016/j.cam.2018.11.003
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发表时间:
2019-05
影响因子:
2.4
通讯作者:
Khajah Tahsin
中科院分区:
文献类型:
--
作者:
Xu Gang;Li Bojian;Shu Laixin;Chen Long;Xu Jinlan;Khajah Tahsin
Motivated by the moving mesh method in conventional finite element analysis, in this paper, we propose an r-adaptive isogeometric analysis framework by Winslow’s mapping and monitor function approach. We construct a new monitor function based on the absolute curvature metric of the isogeometric solution surface. In the proposed r-adaptive framework, the redistribution of the inner control points is performed to increase the density of control points in the regions where curvature based or error based monitor functions are maximum. The new locations of the inner control points are obtained by solving governing PDEs using isogeometric collocation method which is more efficient in solving large-scale problems. By employing Winslow’s mapping we ensure that the generated r-adaptive parameterization is valid for isogeometric analysis and can be used as optimal initial grid for subsequent h-refinements. Multiple two-dimensional heat conduction examples are solved which confirm the effectiveness of the proposed method.
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DOI:
10.1016/j.cam.2015.03.024
发表时间:
2015-12
期刊:
J. Comput. Appl. Math.
影响因子:
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作者:
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影响因子:
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Comput. Aided Des.
影响因子:
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发表时间:
2009-05
影响因子:
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通讯作者:
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影响因子:
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