Abstract
This paper describes an interactive FEA (finite element analysis) mesh refinement technique in an automatic hexahedral mesh generation system based on the shape recognition technique and boundary-fit method. In this system, a solid model is analyzed, and cubes are put together to construct a corresponding mapping model. Hexahedral meshes are then generated by mapping the cubes onto the solid model. If users are not satisfied with the automatic mesh generation results, they can remake the intermediate models interactively. Furthermore, if this system fails to construct the intermediate models automatically, users can interactively aid its construction. The advantages of this technique are: (1) more types of solid models can be meshed, and (2) users can direct the creation of higher quality meshes.
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