复合材料构件热压罐成型模具温度均匀性分析
|
摘要
热压罐固化中成型模具的温度分布对复合材料固化质量有显著影响,提高与构件直接接触的模具型面温度均匀性有利于改善内部温度梯度,减小固化变形,提高成型精度。本文以复合材料构件热压罐框架式成型模具为对象,应用有限元方法,分析模具温度的分布,研究模具支撑结构对型板表面温度均匀性的影响。研究表明,支撑板厚度越薄,温度均匀性越好,与进气风口平行方向的支撑板对温度均匀性的影响更为显著,因此可优先考虑增加与进气风口垂直方向支撑板厚度来增加模具刚度。在保持面积不变的前提下,改变散热孔的形状,发现菱形与圆形散热孔具有较强的抗变形能力,而方形散热孔使得型板表面温度分布更加均匀。通过控制散热孔的布局改变风道时,发现T型风道对于改善温度均匀性的效果最佳。
In the autoclave curing,the temperature distribution of the molding die has a significant effect on the curing quality of the composite. Increasing the temperature uniformity of the mold profile in direct contact with the component is beneficial to improve the internal temperature gradient,reduce the curing deformation,and improve the molding precision.Taking the composite component frame of the autoclave frame as the object,the finite element method is applied to analyze the distribution of the mold temperature,and the influence of the mold support structure on the surface temperature uniformity of the form is studied.Studies have shown that the thinner the thickness of the support plate,the better the temperature uniformity,and the influence of the support plate which is parallel to on the inlet air vent on the temperature uniformity is more significant.Therefore,it is preferred to increase the thickness of the support plate in the vertical direction of the inlet vent to increase die stiffness. Under the premise of keeping the area constant,the shape of the heat dissipation hole is changed,and it is found that the diamond shape and the circular heat dissipation hole have strong deformation resistance,and the square heat dissipation hole makes the surface temperature distribution of the template more uniform.When the airduct is changed by controlling the layout of the heat dissipation holes,it is found that the T-s-haped air passage is the best for improving the temperature uniformity.
In the autoclave curing,the temperature distribution of the molding die has a significant effect on the curing quality of the composite. Increasing the temperature uniformity of the mold profile in direct contact with the component is beneficial to improve the internal temperature gradient,reduce the curing deformation,and improve the molding precision.Taking the composite component frame of the autoclave frame as the object,the finite element method is applied to analyze the distribution of the mold temperature,and the influence of the mold support structure on the surface temperature uniformity of the form is studied.Studies have shown that the thinner the thickness of the support plate,the better the temperature uniformity,and the influence of the support plate which is parallel to on the inlet air vent on the temperature uniformity is more significant.Therefore,it is preferred to increase the thickness of the support plate in the vertical direction of the inlet vent to increase die stiffness. Under the premise of keeping the area constant,the shape of the heat dissipation hole is changed,and it is found that the diamond shape and the circular heat dissipation hole have strong deformation resistance,and the square heat dissipation hole makes the surface temperature distribution of the template more uniform.When the airduct is changed by controlling the layout of the heat dissipation holes,it is found that the T-s-haped air passage is the best for improving the temperature uniformity.
引文
[1]王永贵,梁宪珠,薛向晨.热压罐工艺的传热分析和框架式模具温度场分布[J].航空制造技术,2008,51(22):80-87.WANG Yonggui,LIANG Xianzhu,XUE Xiangchen.Analysis of heat transfer and temperature field distribu-tion on frame tooling in autoclave process[J].Aero-nautical Manufacturing Technology,2008,51(22):80-87.
[2]王永贵,梁宪珠,曹正华.热压罐工艺成型先进复合材料构件的温度场研究综合[J].玻璃钢/复合材料,2009(3):81-85.WANG Yonggui,LIANG Xianzhu,CAO Zhenghua.Review of the temperaure field research of autoclave moulding for advanced composite components[J].Fi-ber Reinforced Plastics/Composites,2009(3):81-85.
[3]张铖.大型复合材料结构热压罐工艺温度场权衡设计[D].哈尔滨:哈尔滨工业大学,2009:1-153.ZHANG Cheng.Curing temperature field tradeoff de-sign method of large scale composite material structure in autoclave process[D].Harbin:Harbin Institute of Technology,2009:1-153.
[4]寇哲君,龙国荣,万建平,等.热固性树脂基复合材料固化变形研究进展[J].宇航材料工艺,2006(S1):7-11.KOU Zhejun,LONG Guorong,WAN Jianping.Pro-cess of study on curing induced shape distortion for res-in matrix thermosetting composites[J].Aerospace Ma-terial Technology,2006(S1):7-11.
[5]GNIATCZYK J L,JEFFREY L.Composite molding tools and parts and processes of forming molding tools:US6309587 B1[P].2001-10-30.
[6]PARK H C,LEE S W.Cure simulation of thick composite structures using the finite element method[J].Journal of Composite Material,2001,35(3):118-201.
[7]岳广全,张博明,杜善义,等,模具对热固性树脂基复合材料固化变形的影响[J].玻璃钢/复合材料,2010(5):62-65.YUE Guangquan,ZHANG Boming DU Shangyi et al.Influence of the mould on curing induced shape distor-tion for resin matrix thermosetting composites[J].Fi-ber reinforced pla-stics/composites,2010(5):62-65.
[8]张旭生,甘忠,张海燕,等.热压罐时效成形模具温度场优化研究[J].中国制造业信息化,2011,40(19):30-32.ZHANG Xusheng,GAN Zhong,ZHANG Haiyang.Research on optimization of mold temperature fields in autoclave age forming[J].Manufacture Information Engineering of China,2011,40(19):30-32.
[9]赵一鸣,安鲁陵.复合材料构件成型模具温度场均匀性改善研究[J].航空制造技术,2018,61(5):84-94.ZHAO Yiming,AN Luling.Study on improvement of tmperature field uniformity of composite mold[J].Aeronautical Manufacturing Technology,2018,61(5):84-94.
[10]罗登峰.热压罐工艺的传热分析和框架式模具温度场分布[J].中国高新技术企业,2013,19:84-85.LUO Dengfeng.Heat transfer analysis of autoclave process and temperature distribution of frame mold[J].Chinese High-Tech Enterprises,2013,19:84-85.
[11]WANG Q,WANG L,ZHU W,et al.Design optimization of molds for autoclave process of composite manufacturing[J].Journal of Reinforced Plastics and Composites,2017,21(36):1564-1576.
[2]王永贵,梁宪珠,曹正华.热压罐工艺成型先进复合材料构件的温度场研究综合[J].玻璃钢/复合材料,2009(3):81-85.WANG Yonggui,LIANG Xianzhu,CAO Zhenghua.Review of the temperaure field research of autoclave moulding for advanced composite components[J].Fi-ber Reinforced Plastics/Composites,2009(3):81-85.
[3]张铖.大型复合材料结构热压罐工艺温度场权衡设计[D].哈尔滨:哈尔滨工业大学,2009:1-153.ZHANG Cheng.Curing temperature field tradeoff de-sign method of large scale composite material structure in autoclave process[D].Harbin:Harbin Institute of Technology,2009:1-153.
[4]寇哲君,龙国荣,万建平,等.热固性树脂基复合材料固化变形研究进展[J].宇航材料工艺,2006(S1):7-11.KOU Zhejun,LONG Guorong,WAN Jianping.Pro-cess of study on curing induced shape distortion for res-in matrix thermosetting composites[J].Aerospace Ma-terial Technology,2006(S1):7-11.
[5]GNIATCZYK J L,JEFFREY L.Composite molding tools and parts and processes of forming molding tools:US6309587 B1[P].2001-10-30.
[6]PARK H C,LEE S W.Cure simulation of thick composite structures using the finite element method[J].Journal of Composite Material,2001,35(3):118-201.
[7]岳广全,张博明,杜善义,等,模具对热固性树脂基复合材料固化变形的影响[J].玻璃钢/复合材料,2010(5):62-65.YUE Guangquan,ZHANG Boming DU Shangyi et al.Influence of the mould on curing induced shape distor-tion for resin matrix thermosetting composites[J].Fi-ber reinforced pla-stics/composites,2010(5):62-65.
[8]张旭生,甘忠,张海燕,等.热压罐时效成形模具温度场优化研究[J].中国制造业信息化,2011,40(19):30-32.ZHANG Xusheng,GAN Zhong,ZHANG Haiyang.Research on optimization of mold temperature fields in autoclave age forming[J].Manufacture Information Engineering of China,2011,40(19):30-32.
[9]赵一鸣,安鲁陵.复合材料构件成型模具温度场均匀性改善研究[J].航空制造技术,2018,61(5):84-94.ZHAO Yiming,AN Luling.Study on improvement of tmperature field uniformity of composite mold[J].Aeronautical Manufacturing Technology,2018,61(5):84-94.
[10]罗登峰.热压罐工艺的传热分析和框架式模具温度场分布[J].中国高新技术企业,2013,19:84-85.LUO Dengfeng.Heat transfer analysis of autoclave process and temperature distribution of frame mold[J].Chinese High-Tech Enterprises,2013,19:84-85.
[11]WANG Q,WANG L,ZHU W,et al.Design optimization of molds for autoclave process of composite manufacturing[J].Journal of Reinforced Plastics and Composites,2017,21(36):1564-1576.