【摘要】 基于协调三角形剖分算法、分子表数据结构和Zienkiewicz-Zhu误差估计方法,本文研制出适用于自适应多重网格有限元法的网格生成器。该网格生成器可对任意曲线组成的区域进行自适应加密。当荷载作用边界随时间变化及在动力荷载作用下,网格生成器可随应力集中区域的变化而动态退化与再加密网格。更多还原

【Abstract】 Based on comforming triangulations algorithms, molecular list structure and Zienkiewicz-Zhu error estimation, a mesh generator suitable for adaptive multigrid finite element method is implemented in this paper. The mesh generator can refine the region composed of any curves adaptively. When the load boundaries vary with time and under the dynamics loads, the mesh generator can derefinement and re-refinement dynamically mesh with moving of stress concentration region.更多还原