轻工机械2018，Vol.36Issue(3)：8-13,6.DOI:10.3969/j.issn.1005-2895.2018.03.002
双型腔模具加热系统热传导多源项反演与实验研究
Theory and Experimental Research on Multiple Source Heat Conduction Inversion of Double Cavities Mould Heating System
摘要
Abstract
Due to the different shapes and depth of the multiple cavity mould,it is difficult to obtain uniform temperature distribution of the cavity, which affects the dimensional accuracy and mechanical characteristic of the plastic forming parts.The multiple source inversion algorithm with the linear superposition principle for the heat conduction of the mould heating system was proposed.By studying the heat conduction mechanism of the mould heating system, the mathematical model of heating system was divided into two parts: the positive problem and the multiple source heat conduction inversion problem.Then the multiple cavities of the polymer curing reaction mould was designed and the experiment platform was built.The experiment results show that the temperature difference between the two cavity surfaces does not meet the industry standard at the same time.According to the uniformity requirement of the target temperature field, the mould heating process of BMC is improved.The heat source strength functions are obtained as the initial heat source boundary condition for the secondary inversion.The secondary inversion results show that the uniformity of the mould cavity temperature field meets the requirement and the heating efficiency has been also improved greatly.To verify the generality of the proposed inversion algorithm, the experiment platform of the multiple cavity mould is also designed and tested and good inversion results are achieved.关键词
反应成型模具/热传导/多源项反演/热源强度函数/反演算法/线性叠加原理Key words
polymer curing reaction mould/heat conduction/multiple heat sources inversion/heat source strength function/inversion algorithm/linear superposition principle分类
能源科技引用本文复制引用
李金国,高增梁,刘红,张树友,黄剑,陈卫..双型腔模具加热系统热传导多源项反演与实验研究[J].轻工机械,2018,36(3):8-13,6.基金项目
浙江省自然科学基金资助项目( LY15E060001) （ LY15E060001）
浙江省博士后择优资助项目 （）
台州市科技计划项目(1701gy28). （1701gy28）
