CAJ | 학술논문

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。
탐토료구유복잡형면적대형판료건충압방진유한원건모과정중적일사관건기술문제。침대차류령건구유궤하형상복잡적특점，이용조형공능강대적삼유조형연건대유소묘측량궤측도적리산수거진행의합화광순처리，득도령건적정학곡면CAD모형，연후통과표준수거전환접구，장CAD모형전입방진연건적전처리기중，재이용연건적곡면망격화분공능대기진행망격화분，최종건립기충압방진소수적유한원모형。이교차문내판충압방진유한원모형건모위례，설명료복잡형면판료건충압방진유한원건모기술적실제응용。
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.