挤压铸造计算机模拟软件前处理技术网格剖分的研究

对数值分析对象的(几何)模型进行网格剖分是前处理技术研究的核心内容,它直接关系到后续计算模块以及后处理模块功能的实现.文中以导入的STL文件为输入数据,通过有限差分的方法,将原有的线框模型划分为网格模型.针对网格剖分过程以及显示过程出现的问题,开发了用于自动处理STL文件孔洞以及奇异点问题的错误诊断与容错系统,提出了用于网格显示的表面网格和网格偏移算法.

Pre-processing Technology of Grid Generation for Extrusion Casting Numerical Simulation Software

Grid generation for numerical analysis of the object(geometric) model is core content of the pre-processing technology,it direct relate to next functional realization of count module and postprocessing module.In this paper,imported STL file was used as input data to divide inhere wire frame model into grid model.In the view of the problem of "file hole" and "singular point" appearing in the process for grid genenration,the fault diagnosis and foult-tolerant system which can used to judge and eliminate defects were developed to raise surface grid and excursion algorithm for grid exhibitory.