有限元反向法计算筒形件毛料形状

• 作 者: 徐国艳\\r\\r\\r\\r\\r\\r\\r\\r\\r\\n 施法中
• 机 构: 北京航空航天大学机械工程及自动化学院,北京航空航天大学机械工程及自动化学院 北京100083,北京100083
• 出 处: 塑性工程学报
• 发表日期: 2002年02期
• 关键词: 板料成形 冲压件 可成形性 材料利用率 圆角半径 盒形件 修边 压边力 节点编号 冲压力

合理地选择冲压件的毛料外形 ,可以提高板料的可成形性 ,同时也可以提高材料利用率。选用反向法来计算冲压件的毛料外形 ,开发了独立的有限元源程序 ,并提出了一种简单的求解毛料初步解方法。通过例子证明 ,该算法计算的结果与实际情况比较吻合 ,而且程序比较稳定 ,能较准确较快地求得冲压件的毛料外形

Reasonable choice of stamping parts of the wool shape, can improve the sheet formability, but also can improve material utilization. The inverse method was used to calculate the wool shape of the stamping parts. An independent finite element program was developed and a simple method of solving the initial solution of wool was proposed. The example proves that the result calculated by the algorithm is in good agreement with the actual situation and the procedure is relatively stable and can obtain the wool shape of the stamping part more accurately and quickly