复杂型面板料件冲压仿真有限元建模技术研究  

Study On Modeling The FEM Model of Sheet With Complex Shape for Stamping Simulation

作　　者：包向军[1] 何丹农[1] 李从心[1] 阮雪榆[1] 程惊雷[2] 蒋镜昱[2] 

机构地区：[1]上海交通大学国家模具CAD工程研究中心,上海200030 [2]上海大众汽车有限公司,上海201805

出　　处：《机械科学与技术》2001年第1期96-97,共2页Mechanical Science and Technology for Aerospace Engineering

基　　金：上海市汽车基金项目资助

摘　　要：探讨了具有复杂型面的大型板料件冲压仿真有限元建模过程中的一些关键技术问题。针对此类零件具有几何形状复杂的特点 ,利用造型功能强大的三维造型软件对由扫描测量机测到的离散数据进行拟合和光顺处理 ,得到零件的精确曲面 CAD模型 ,然后通过标准数据转换接口 ,将 CAD模型转入仿真软件的前处理器中 ,再利用软件的曲面网格划分功能对其进行网格划分 ,最终建立起冲压仿真所需的有限元模型。以轿车门内板冲压仿真有限元模型建模为例 ,说明了复杂型面板料件冲压仿真有限元建模技术的实际应用。In this paper, some key techniques of modeling the FEM model of sheet with complex shape for stamping simulation are presented. Because of detailed shapes and large sizes of this kind of parts, CMM and three dimensional CAD software are employed to set up the precise CAD model. Then the CAD model is transmitted to the pre-processor of CAE software through the standard data exchange file, and the FEM model is constructed with the function of surface mesh at the final stage. To illustrate this technique, the FEM model for stamping simulation of an inner door of automobile is set up, and the whole process is described.

关 键 词：复杂型面板料 有限元模型 冲压仿真 CAD 

分 类 号：TG386.41[金属学及工艺—金属压力加工]