完全无缝的CAE/CAD一体化高精度全自动计算力学软件开发

CAE/CAD一体化至今没有真正实现；边界面法将边界积分方程与计算机图形学结合起来，直接在CAD模型上做CAE分析，是真正的等几何分析方法，可实现真正的CAE/CAD一体化；双层插值方法将单元插值与无网格法结合起来，兼有二者的优点同时避免其缺点，彻底将CAE分析从网格划分的牢笼中解放出来。简化的二叉树网格划分方法可以实现任意复杂结构的非连续单元全自动生成，甚至不需要对结构“脏”的CAD模型进行几何修复。基于双层插值边界面法可以实现任意复杂结构的高精度全自动分析，是国内计算力学软件赶超国际先进水平的捷径。研究内容包括：基于双层插值的边界面法；基于二叉树的全自动网格生成方法；基于CPU和GPU的并行快速算法；开发一套具有原创性的基于产品CAD模型的自动CAE分析软件系统，以求解任意几何形状、任意材料构成的大规模复杂工程问题。

The truely seamless integration of CAE and CAD has not been realized up to now. The Boundary Face Method (BFM), which combines the BIE with Computer Graphics and is a truly isogeometric analysis method, can perform CAE analysis on a CAD model directly and realize a truly seamless integration of CAD and CAE. The Double Layer Interpolation Method, which combines the traditional element interpolation and meshless approximation, inheriting advantages and avoiding disadvantages from both, will completely liberate CAE analysis from the cage of meshing. The simplified binary tree meshing method can realize the entirely automatic meshing into discontinuous grids for arbitrarily complex structures, not even need to fix the geometrically ‘dirty’ part of their CAD models. Therefore, the coupled Double Layer Interpolation Boundary Face Method is able to perform automatic analysis with high accuracy for complex structures, providing a shortcut for domestic CAE software to catch up with the international advanced levels. The research content includes: the BFM coupling with the double layer interpolation; Automatic grid generation method based on binary tree; Parallel Fast algorithms based on CPU/GPU. The ultimate goal of our research is to develop a novel set of software that can perform automatic CAE analyses making direct use of CAD models of real industrial product structures, and thus able to solve large-scale engineering problems with arbitrarily complex geometry and material composition.