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粉末注射成型的分数微分模型及其数值模拟

Fractional Differential Model of Powder Injection Filling Process and Numerical Simulation
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摘要 在Hele-Shaw近似下采用有限元/有限差分混合法求解粉末注射成型充填过程.首次提出利用分数微分替换运动方程中的经典导数,压力场方程演变为线性方程,数值计算代价显著减少.数值实验表明该方法有效. A FEM/ FDM scheme is used to solve the powder injection molding under the Hele Shaw approximation. Instead of classical derivatives, we use the fractional differentiation to model the motion equation, which makes the pressure equation become linear, so the computational cost is decreased much. Numerical examples show efficiency of the proposted method.
作者 吴红英 石毅 彭伟
机构地区 怀化学院数学系
出处 《邵阳学院学报（自然科学版）》 2013年第1期17-20,共4页 Journal of Shaoyang University：Natural Science Edition
基金 湖南省研究性学习与创新实验项目(2010年度)
关键词 粉末注射成形 分数微分 有限元 数值模拟 控制体积 powder injection molding fractional differentiaton FEM/FDM numerical simulation control volume
分类号 TF124.39 [冶金工程—粉末冶金]
  • 相关文献

参考文献10

  • 1German R. M. Powder injection molding [ M ]. Princeton, New jersy, 1990.7.
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二级参考文献5

  • 1C. A. Hieber. A Finite - Element/Finite - Difference Simulation of the Injection Molding Filling Process [J ]. Journal of Non -Newtonian Fluid Mechanics, 1980, (7) : 1-32.
  • 2H. H. Chiang, C. A. Hieber, K. K. Wang, Aunitled simulation of the filling and posttilling stage in injection molding[ J ]. Polymer Engineering and Science, 1991, (2):116-123
  • 3Wang V W,C A Hieber and K K Wang. Dynamic Simulation and graphics for the Injection molding of three - dimensional thin parts[J] .Journal of Polymer Engineering, 1986, (7) :22 - 45.
  • 4L. A. Najim, Lee Daeyong. Modelling Of Mold Filling Process For Powder Injection Molding[J]. Polymer Engineering and Science, 1991, (15) : 1137 - 1148.
  • 5German R.M. Powder Injection Molding [ C ]. Princeton, Newjersy, 1990.7.

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邵阳学院学报（自然科学版）
2013年 第1期

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