基于背景网格的成形模面等距合理性判断算法  

Forming die face offset rationality detection algorithm based on background mesh

作　　者：王伟华[1] 郑国君[2] 郭威[3] 

机构地区：[1]哈尔滨理工大学荣成校区材料工程系,山东威海264300 [2]大连理工大学汽车工程学院,辽宁大连116024 [3]吉林大学材料科学与工程学院,长春130022

出　　处：《计算机辅助工程》2012年第3期53-56,共4页Computer Aided Engineering

摘　　要：针对在板材冲压成形CAE仿真分析过程中,等距处理后的网格会出现尖角或自交叉的问题,研究KMAS/One-step的网格等距处理,基于背景网格,实现实用的一次试输入即可判断成形模面等距合理性的算法,并引入二分法得出合理的等距值.该算法大幅提高模拟程序的运行速度,为成形模面的快速、合理等距处理提供可行方案.As to the problem that sharp corners or self-crossover may occur after the offset treatment on mesh during the CAE simulation for sheet stamping forming, the mesh offset treatment in KMAS/One-step is researched, a practical forming die face offset rationality detection algorithm based on background mesh is implemented by one-time test input, and the dichotomy method is introduced to get reasonable proposal value of offset. The algorithm improves the operation speed of simulation program greatly and provide a feasible scheme for rapid and rational offset treatment on forming die face.

关 键 词：钣金 冲压 等距 背景网格 二分法 有限元 KMAS 

分 类 号：TG386[金属学及工艺—金属压力加工] TB115.1[理学—数学]