基于三维实体模型的注塑成型保压过程模拟
Simulation of injection molding packing process based on 3D solid model
王振海 1贾伟 1董勤喜 1于行2
作者信息
- 1. 海南大学土木建筑工程学院,海口 570228
- 2. 东玺技术(山东)有限公司,济南 250003
- 折叠
摘要
基于现有的超算平台和有限体积法计算程序,开发基于三维实体模型的注塑成型数值模拟计算模型.基于可压缩两相流模型进行计算,采用有限体积法进行离散,结合流体体积法(VOF)进行界面捕获,使用Cross-WLF黏性模型表征聚合物熔体的流变行为.以平板型腔和带圆柱嵌件型腔熔体保压过程为例进行数值模拟计算,成功预测型腔压力、温度和应力等流动特性的分布,模拟结果与文献中的结果基本吻合.
Abstract
Based on the existing supercomputing platforms and finite volume method calculation programs,a numerical simulation calculation model for injection molding based on three-dimensional solid model is developed.The calculation is based on the compressible two-phase flow model,and discretized using the finite volume method.The interface is captured combined with the volume of fluid method(VOF).The rheological behavior of the polymer melt is characterized using Cross-WLF viscosity model.Taking the pressure holding process of the melt in the flat cavity and the cavity with cylindrical inserts as examples,the numerical simulation calculations are conducted.The distribution of flow characteristics,such as cavity pressure,temperature,and stress,is successfully predicted.The numerical simulation results are basically consistent with the results in the literatures.
关键词
注塑成型/保压过程/实体模型/有限体积法/流体体积法(VOF)Key words
injection molding/pressure holding process/solid model/finite volume method/volume of fluid method(VOF)引用本文复制引用
基金项目
海南省院士创新科研专项(YSPTZX202106)
出版年
2024
NETL
NSTL
万方数据