上海交通大学学报

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (03): 504-508.

• 化学工程 • 上一篇    

大型复杂多孔塑件注塑模拟关键技术

尹红灵,孙懋,徐宗剑,陈军   

  1. （上海交通大学 塑性成形工程系, 上海 200030）  
  • 收稿日期:2011-04-19 出版日期:2012-03-30 发布日期:2012-03-30
  • 基金资助:

    国家自然科学基金资助项目（50873060），2009年 余姚市重大科技专项资助项目

Key Technology of CAE Simulation for Large Complicated Multi-hole Plastic Part

 YIN  Hong-Ling, SUN  Mao, XU  Zong-Jian, CHEN  Jun   

  1. （Department of Plasticity Forming Engineering, Shanghai Jiaotong University, Shanghai 200030, China）
  • Received:2011-04-19 Online:2012-03-30 Published:2012-03-30

摘要： 针对大型复杂多孔零件注射成型模拟中网格模型大、计算耗时和模拟精度低的问题，根据体积相等的原则和多孔特征截面的简化方法，用简单截面的形状因子和等效厚度来替代多孔复杂截面，推导了圆形孔和六边形孔的形状因子和等效厚度的计算公式. 利用推导公式对某汽车后门板注塑成型过程进行数值模拟，大大缩短了计算时间，并准确预测了零件熔接痕和气泡的位置，可应用于具有类似特征产品的注塑工艺模拟.

关键词:  , 注塑模拟； 等效体积； 等效厚度； 形状因子；计算机辅助工程

Abstract: Considering the large meshing model and timeconsuming computation in large complicated multihole part injection molding simulation, in order to solve the problems, according to the principle of equivalent volume, a simplified method was used to substitute multihole featural section with a simple cross section of shape factor and equivalent thickness and to derivate the formula of shape factor and equivalent thickness. The formula was used to simulate a car rear door panel, which not only decreases the calculation time, but also accurately predicts the location of the weld lines and air traps. The method is useful for the complicated parts with similar features.

Key words: injection molding simulation, equivalent volume, equivalent thickness, shape factor, computer aided engineering (CAE)

中图分类号: