from the postulate of the stretch-forming, with the help of sheet-forming software, the computer simulation of the stretch-forming of a s-shape aircraft skin is proposed in this paper, including the build of fem mode, the preferences of simulation, the forming, the whole body spring back and the spring back after clipping . the spring back radius is calculated on the simulate results and contrasted with the reality 从拉形的基本原理出发,本文运用sheet-forming对s形飞机蒙皮进行拉形成形的计算机仿真,包括有限元模型的建立、仿真参数的选择、加载成形、整体卸载回弹、切边卸载回弹;运用仿真结果计算回弹半径求出回弹量,并将分析计算结果与实际生产的回弹量对比。
from the postulate of the stretch-forming, with the help of sheet-forming software, the computer simulation of the stretch-forming of a s-shape aircraft skin is proposed in this paper, including the build of fem mode, the preferences of simulation, the forming, the whole body spring back and the spring back after clipping . the spring back radius is calculated on the simulate results and contrasted with the reality 从拉形的基本原理出发,本文运用sheet-forming对s形飞机蒙皮进行拉形成形的计算机仿真,包括有限元模型的建立、仿真参数的选择、加载成形、整体卸载回弹、切边卸载回弹;运用仿真结果计算回弹半径求出回弹量,并将分析计算结果与实际生产的回弹量对比。