| 数值模拟技术在气体辅助注射成型过程中的应用 |
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| 引用本文： | 陈旭,王利霞,申长雨,陈静波,王国中. 数值模拟技术在气体辅助注射成型过程中的应用[J]. 郑州大学学报(工学版), 1998, 0(1) |
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| 作者姓名： | 陈旭 王利霞 申长雨 陈静波 王国中 |
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| 作者单位： | 郑州工业大学橡塑模具国家工程研究中心 |
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| 摘 要： | 基于粘性流体力学基本方程，针对气体辅助注射成型的特点，提出合理的假设并进行必要的简化，建立描述气体辅助注射成型充模流动过程的数学模型，进而采用有限元／有限差分混合算法进行数值求解。在对移动边界的处理采用控制体积法对充模过程中的两类移动边界：熔体前沿、熔体—气体边界进行跟踪，从而实现气体辅助注射成型充模过程的数值模拟。
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| 关 键 词： | 气体辅助注射成型；充模流动模拟；有限元法；有限差分法；控制体积法 |
A Numerical Simulation for Cavity Fillingduring Gas assisted Injection Molding |
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| Chen Xu Wang Lixia Shen Changyu Chen Jingbo Wang Guozhong. A Numerical Simulation for Cavity Fillingduring Gas assisted Injection Molding[J]. Journal of Zhengzhou University: Eng Sci, 1998, 0(1) |
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| Authors: | Chen Xu Wang Lixia Shen Changyu Chen Jingbo Wang Guozhong |
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| Abstract: | Based on the fundamental equations of the hydromechanics, the paper persents the mathematical model by means of reasonable assumptions and necessary simplifications to describe the flow behovior in cavity during gas assisted injection molding. A hybrid finite element finite differemce numerical scheme is employed to carry out the numerical simulation of the filling stage. A control volume approach is applied here to trace the moving boundaries, one for melt front,the other for gas melt interface. |
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| Keywords: | gas assisted injection molding cavity filling simulation finite element finite difference control volume |
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