The panel crosssection is analyzed in the model, and the feasible zone of all crosssection rotating angle is located, and a group of target function is proposed as optimized object.
该模型分析了冲压件截面形状，确定所有截面转角的公共可行域，并建立一组目标函数作为优化对象。
2
All crosssection rotating Angle is optimized in the feasible zone, and the optimal value of target function is calculated.
在公共可行域内优化各个截面的转角，然后加权平均得到目标函数的最优值。
3
Crosssection area decreases and inclined Angle increases respectively when filling length increases, and the change becomes more obviously near the entrance.