| 注塑充模流动过程灵敏度数值分析 |
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| 引用本文： | 申长雨,刘春太.注塑充模流动过程灵敏度数值分析[J].化工学报,2005,56(2):346-351. |
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| 作者姓名： | 申长雨 刘春太 |
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| 作者单位： | 郑州大学橡塑模具国家工程研究中心，河南 郑州 450002 |
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| 基金项目： | 国家杰出青年科学基金 (10225211)，国家自然科学基金重大项目 (10590354).~~ |
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| 摘 要： | 从注塑模充模过程控制方程出发，建立了注塑成型充模过程物理场对设计参数瞬态连续灵敏度分析理论，得到了充模过程压力场、温度场、速度场等物理场对设计参数的灵敏度控制方程.数值分析沿用了注塑模流动分析的基本思想，压力灵敏度采用有限元法、通过对时间和厚度方向的差分求解温度灵敏度，借助于控制体积的概念得到运动边界灵敏度分析.数值算例分析了注射压力对注射流率、熔体温度的设计灵敏度，与数值实验吻合良好.
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| 关 键 词： | 注射成型 充模流动 灵敏度分析 |
| 文章编号： | 0438-1157(2005)02-0346-06 |
| 收稿时间： | 2003-11-4 |
| 修稿时间： | 2004-2-12
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Numerical analysis of design sensitivity for filling process in injection molding |
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| SHEN Changyu,LIU Chuntai.Numerical analysis of design sensitivity for filling process in injection molding[J].Journal of Chemical Industry and Engineering(China),2005,56(2):346-351. |
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| Authors: | SHEN Changyu LIU Chuntai |
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| Abstract: | Based on the governing equation of filling stage, a co ntinuous transient design sensitivity method was firstly developed and applied t o injection molding.The sensitivity of pressure, temperature and velocity with r espect to a design parameter was calculated.The numerical solution was based on a hybrid finite-element/finite-difference method, which was popular in filling simulation, to solve for the pressure, temperature and velocity sensitivity, an d a control-volume method was adopted to obtain moving melt front sensitivity.T he injection pressure sensitivity with respect to flow rate and melt temperature was obtained by using numerical methods.These results were found to agree reaso nably well with corresponding numerical experiments. |
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| Keywords: | injection molding filling processing sensitivity ana lysis |
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