论文部分内容阅读
本文以薄板冲压成形仿真中板料有限元网格模型为对象 ,研究了板料网格大小对仿真计算精度和计算效率的影响。以方形盒成形为例 ,分析了几种不同板料网格划分方案的仿真结果 ,并与 NUMISHEET 93的实验数据进行了对比 ,给出了进行薄板成形仿真时板料有限元网格模型的一般划分原则。并将结果应用于桑塔纳轿车车顶的成形仿真分析 ,实践证明本文所给出的这些建模原则是切实可行的。
In this paper, the sheet metal finite element mesh model of sheet metal stamping simulation is taken as an object, and the influence of sheet metal grid size on the simulation accuracy and computational efficiency is studied. Taking the square box forming as an example, the simulation results of several different schemes of sheet metal mesh are analyzed and compared with the experimental data of NUMISHEET 93. The general finite element mesh model of sheet metal during sheet metal forming simulation is given Divide the principle. The results are applied to the forming simulation of Santana car roof. Practice has proved that the modeling principles given in this paper are feasible.