| 邹静,纪洪广.基于有限元弹性变形运算的全六面体网格生成方法研究[J].计算力学学报,2011,28(2):231~236 |
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| 基于有限元弹性变形运算的全六面体网格生成方法研究 |
| Study of method for full hexahedral grid meshing based on FEM elastic deform operation |
| 投稿时间：2009-10-20 修订日期：2010-08-01 |
| DOI：10.7511/jslx201102014 |
| 中文关键词: 有限元 六面体网格 网格生成方法 光顺算法 马头门 |
| 英文关键词:FEM hexahedral grid meshing method smoothing algorithm shaft ingate |
| 基金项目:国家863重点课题 (2008AA062104);十一五支撑课题(2008BAB33B03);国家973重点课题(2010CB226803;2010CB731501)资助项目. |
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| 中文摘要: |
| 以映射法为基础并结合网格划分经验,提出了原理简单的六面体网格生成新办法。该方法根据物体轮廓选择初始网格,设定表面结点强制变形到目的曲面,经由有限元弹性计算确定内部节点的位置。在检查全体单元质量以后,调整畸形单元从而生成目的网格。通过为一个复杂的马头门模型构建全六面体网格,最后证明了本文所述方法的可行性。 |
| 英文摘要: |
| A new simple method for hexahedral mesh generation is proposed based on the mapping method and authors’ experiences on FEM meshing. Firstly, the initial grid is selected according to the contour of the body. Secondly, this grid is forced to deform so that all surface nodes can reach the destination surfaces, and then, the locations of the internal nodes are determined by FEM calculations under elasticity condition. Finally, after checking the quality of all elements, the target grid can be constructed by adjusting distorted elements. In order to validate the proposed technique, a full hexahedral grid is built for a complex shaft ingate model. The feasibility of the present method is fully proved. |
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