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| Geometric adaptive remeshing algorithm of hexahedral mesh for 3D FEM |
| Received:April 25, 2009 Revised:September 11, 2009 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201101014 |
| KeyWord:FEM hexahedral element mesh adaptive generation grid-based approach remeshing |
| Author | Institution |
| 王忠雷 |
山东大学 模具工程技术研究中心,济南 ;山东建筑大学 机电工程学院,济南 |
| 赵国群 |
山东大学 模具工程技术研究中心,济南 |
| 黄丽丽 |
山东大学 模具工程技术研究中心,济南 |
| 马新武 |
山东大学 模具工程技术研究中心,济南 |
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| Abstract: |
| Based on geometrical adaptivity, a remeshing method of hexahedral element mesh with grid-based approach is presented. Several key technologies about hexahedral element remeshing for FEM are studied, such as the criterion of remeshing, the getting of geometrical shape of old mesh model and the transformation of state variables from the old mesh into the new mesh. The emphasis of this paper is focused on the remeshing algorithms of hexahedral element mesh based on geometric adaptive. First, the geometrical features of the old mesh model are extracted and the refinement information fields of the source points are constructed based on the geometric features. Secondly, the core mesh is constructed with grid-based approach then the boundary mesh is constructed by linking the core mesh with the surface of the old mesh model. Finally, mesh smoothing and topology optimization are employed to improve the quality of the resulting mesh. The effectiveness and robustness of the algorithm are tested through applications. |
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