基于模糊控制的自适应有限元网格自动剖分  

Auto-Adaptive Flute Element Generation Based no Fuzzy Control

作　　者：刘旺玉[1] 林德浩[1] 李材元[1] 陈澄洲[1] 

机构地区：[1]华南理工大学机电系

出　　处：《广东自动化与信息工程》1997年第4期16-20,共5页Guangdong Automation & Information Engineering

摘　　要：本文采用模糊控制策略,对有限元网格划分过程中难以控制的因素—网格密度作出自适应控制;同时借鉴先验自适应的思想,在后验控制过程中综合考虑了边界属性的影响,避免了较多层次的网格局部细化与退化,采用此方法,不仅保证了计算精度,而且可以提高运算效率。Based on fuzzy control, this paper presents an auto-adaptive control method to finite element mesh density,being a very difficulty controled factor in mesh generation, and draws lessons from the thought of priori-adaption.considering comprehensively the effects of boundary attributions in posteriori adaptive control process, thus avoids more levels' sub-region mesh refining or dis-densified.By applying the method, not only caculating precision can be ensured,but also caculating efficiency can be raised.

关 键 词：模糊控制 有限元法 网格划分 自适应控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]