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有限元计算的重要前提是网格自动生成算法。目前的主要二维四边形网格算法中,生成单元质量好、自动化程度高的算法要算铺路算法。然而,铺路算法具有一些不足之处,对其进行适当的创新与改进,舍去了原算法中原始体判断及节点分类太过复杂的特点,完善了内部节点及边界的光滑方法,在生成网格之前实施固定边界的预处理,提高程序的适应性,从而有效地提高了程序的稳定性与可靠性。
An important precondition for finite element calculation is the grid automatic generation algorithm. The current main two-dimensional quadrilateral grid algorithm, to generate the unit of good quality, high degree of automation algorithm to be paving algorithm. However, the paving algorithm has some shortcomings, and makes appropriate innovations and improvements to it. It discards the original algorithm and the node classification is too complicated. It improves the smoothness of internal nodes and boundaries, Before the implementation of the fixed boundary pretreatment to improve the adaptability of the program, thus effectively improving the stability and reliability of the program.