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| All hexahedron mesh generation for multi-featured geometry |
| Received:December 11, 2011 Revised:April 19, 2012 |
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| DOI：10.7511/jslx201302009 |
| KeyWord:finite element analysis automatical meshing hexahedral mesh geometric segmentation |
| Author | Institution |
| 代星 |
海军工程大学 动力工程学院 机械工程系,武汉 |
| 崔汉国 |
海军工程大学 动力工程学院 机械工程系,武汉 |
| 罗欣 |
华中科技大学 数字制造装备与技术国家重点实验室,武汉 |
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| Abstract: |
| The accuracy and efficiency of finite element analysis is closely related to mesh quality.Existing hexahedral meshing algorithms suffer from poor meshing compatibility between different geometric constraints and poor meshing quality around hole-shaped features,especially for complex model with varieties of geometric features.In this paper,a novel approach to hexahedral meshing for multi-featured geometry is proposed based on the mapping algorithm.A complex geometry in physical space is mapped into regular geometry in computational space,which complicated geometry boundary is then simplified by introducing boundary vertex classification rules; sub-domain constraints are connected,and through boundary is searched so that the mapping grids are compatible between a pair of constraint features; the arc features are equivalently transformed to reduce the influence of curvature on grid transitions.Three examples about hexahedral mesh generation are provided to illustrate the efficiency and robustness of the proposed method. |