Direct editing on hexahedral mesh through dual operations
Zhu, Hua and Jinming Chen, Haiyan Wu, Shuming Gao
23rd International Meshing Roundtable, Elsevier Ltd., October 12-15 2014
23rd International Meshing Roundtable
State Key Lab of CAD&CG, Zhejiang University, Hangzhou, China
The finite element mesh regeneration, which is usually required during the design model verification process, is time consuming.
Mesh editing is a kind of ecient mesh regeneration technique. In this paper, a direct editing method for hexahedral mesh is
proposed to achieve high quality and adaptive hexahedral mesh regeneration. After the user applies direct editing on the CAD
model, eective mesh deformation and optimization are automatically conducted on the associated hexahedral mesh model. To
optimize the deformed mesh, firstly, simplified fundamental sheet configuration conversions are applied to improve the boundary
mesh quality; secondly, dual operations are carried out to insert/extract entire sheets; thirdly, according to the measurement of the
hexahedron deformation, those mesh regions whose mesh sizes become not reasonable due to the deformation are coarsened and
refined through localized dual operations. The proposed method can not only eectively achieve hexahedral mesh editing, but also
facilitate the interoperation of CAD model and mesh model.
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