为生成船体典型结构四边形网格，提出一种基于分子动力学的网格划分方法。将正负带电粒子均匀地分布到网格生成域内，带电粒子在库伦相互作用以及Lennard-Jones势[1]的作用下在网格生成域内按动力学方程运动，并趋向于形成四边形形状分布。当带电粒子运动趋于稳定后，对其使用Delaunay三角剖分[2–3]划分网格生成域，合并相邻三角形后得到一系列偶数边形网格。对非四边形的偶数边形网格进行修补后，可以得到全四边形网格。实验结果表明，该方法能够生成质量较好的船体典型结构四边形网格划分。
In order to generate quadrilateral meshes of typical hull structures, a meshing method based on molecular dynamics is proposed. The positive and negative charged particles are uniformly distributed in the grid generation domain, and the charged particles move in the grid generation domain under the action of coulomb interactions and Lennard-Jones potentials, and tend to form a quadrilateral shape distribution. When the motion of the charged particle becomes stable, the Delaunay triangulation is used to divide the mesh domain, and a series of even side meshes are obtained by combining the adjacent triangles. After repairing the non-quadrilateral mesh, the full quadrilateral mesh can be obtained. Experimental results show that this method can generate quadrilateral meshes of typical hull structures with good quality.
2021,43(8): 6-11 收稿日期：2020-08-31
DOI：10.3404/j.issn.1672-7649.2021.08.002
分类号：U663.2
作者简介：赵晓斌(1989-),男,工程师,研究方向为船体结构设计与分析
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