三维有限元网格的面切割自动生成方法  

Auto-creation method of 3D FEM mesh cut by surface

作　　者：徐明毅[1] 陈胜宏[2] 张勇传[1] 

机构地区：[1]华中科技大学，湖北武汉430074 [2]武汉大学，湖北武汉430072

出　　处：《西北水力发电》2003年第4期1-4,共4页Journal of Northwest Hydroelectric Power

摘　　要：讨论了三维有限元网格被平面、三角形网、地形面切割时的各种情况，针对六面体单元和三棱柱单元的切割都提出了相应的算法，并用程序予以实现。这种切割方法可以细分有限元网格，生成复杂模型。通过实际例子验证了该法的可行性。In this paper various instances are discussed with 3D FEM mesh cutted by plane, triangle mesh or ground surface. The according algorithms are both given to cutting problems of hexahedron and triangular prism element, and are also implemented by program. With this cutting method the FEM mesh can be divided into complicated one. The feasibility of this method has been proved with a practical example.

关 键 词：三维有限元网格 切割 三角形网 地形面 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]