这两种构造N边域曲面的方法为NURBS曲面中N边洞的填充与NURBS曲面的混合提供了一个思路。
The two methods present a way of thinking for filling N-sided holes and blending NURBS surfaces.
讨论了网格密度、计算精度以及CPU时间的关系以及八节点四边形单元在复杂求解域的适应性。
The relationship of the gridding density, CPU time and account precision and applicability of eight node's quadrangle element in complicated zone was discussed.
该方法源于波前法的基本思想，从计算域边界向内域逐渐生成非结构化的四边形网格。
The method is base upon the advancing front technique which constructs unstructured mesh of the domain of interest from its boundary.
针对有限元前置处理中二维复杂域四边形网格自动剖分问题，对四叉树网格剖分算法进行了研究。
The arithmetic of quadtree mesh generation was studied in order to solve the problem of the finite element automatic quadrilateral mesh generation for a two dimensional complex region.
形成单刚矩阵时，不需要在单元域内进行数值积分，容易构造曲边单元。
The numerical integral is not needed in forming element stiffness matrix by the present method. It is easy to constructed curved element.
形成单刚矩阵时，不需要在单元域内进行数值积分，容易构造曲边单元。
The numerical integral is not needed in forming element stiffness matrix by the present method. It is easy to constructed curved element.
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