拉形工艺数值模拟软件的前后置处理系统  

THE PREAND POSTPROCESSOR SYSTEM OF NUMERICALSIMULATION FOR STRETCH FORMING

作　　者：李晓星[1] 李玺莹[1] 

机构地区：[1]北京航空航天大学

出　　处：《塑性工程学报》1999年第2期43-49,共7页Journal of Plasticity Engineering

摘　　要：本文介绍了飞机蒙皮拉形过程有限元分析软件的前后置处理系统ＰＯＰＰＳ。该系统通过建立与ＣＡＤ曲面造型系统接口的方式生成有限元网格，获得了良好的网格质量。采用三维图形库ＯｐｅｎＧＬ实现了具有良好交互性能的图形操作，能对模拟数据场进行云图和等值线显示，对蒙皮的成形过程做连续动画模拟显示，并能进行光照渲染处理、任意连续的旋转、平移、缩放和截取以及对图形上的有关节点、单元。In this paper a preand postprocess system of stretch forming simulation with FEM(named POPPS) is presentedthe date of surface can be imported from CAD system through an interface,then a satisfied quality quadrilated mesh can be generated by using mapping methodDrawing support with openGL (a library of 3D drawing),POPPS has efficient interactive graphic,the data field can be displayed with contour and cloudlike graphic,the process of stretch forming can be animatedThe drawing can be displaced, rotated, sectioned and visited

关 键 词：数值模拟 有限元 前后置处理 拉深成形 软件 

分 类 号：TG386.32[金属学及工艺—金属压力加工] TG385.9