复合材料成型模具补偿及构件自适应调整方法研究  

Research on composite material forming mould compensation and component adaptive adjustment method

作　　者：鲍益东[1] 张恒 张会杰[2] 宦蕾 杨智勇[2] 左小彪[2] 安鲁陵[1] BAO Yidong;ZHANG Heng;ZHANG Huijie;HUAN Lei;YANG Zhiyong;ZUO Xiaobiao;AN Luling(College of Mechanical&Electrical Engineering,Nanjing University of Aeronauticsand Astronautics,Nanjing 210000,China;Aerospace Research Institute of Materials&Processing Technology,Beijing 100076,China)

机构地区：[1]南京航空航天大学机电学院,南京210000 [2]航天材料及工艺研究所,北京100076

出　　处：《复合材料科学与工程》2023年第11期49-57,共9页Composites Science and Engineering

基　　金：国防基础科研计划项目(JCKY2019203-WDZC006);国家自然科学基金委员会面上项目(51975280)。

摘　　要：复合材料构件固化变形后进行模具补偿需要对构件有限元模型进行重新建模,效率低,工作量大且缺乏验证,针对复合材料成型模具型面补偿后需要调整对应的复合材料构件有限元模型的问题,提出了一种复合材料成型模具型面补偿及构件自适应调整的方法,采用虚拟材料模型实现了构件网格与补偿后模具网格相互贴合。使用典型件验证了方法的正确性,并依据T形加筋壁板构件实例讨论了在此方法下的试验结果。结果表明:(1)通过模具型面补偿,能够使T形加筋壁板和复杂筒形壁板构件固化变形量明显降低;(2)使用本文提出的方法进行T形加筋壁板固化试验,可得试验偏差测量值与数值模拟偏差值的最大相对误差为17.20%,满足工程验收标准;(3)使用本文复合材料固化成型模具型面补偿及构件有限元自适应调整方法能够避免模具补偿后构件有限元模型重构操作,提升模具补偿效率,提高结果准确性。The finite element model of composite component should be re-modeled for mould compensation after curing deformation which is with low efficiency,heavy workload and lack of validation.A method of mould surface compensation for composite material molding and component adaptive adjustment was proposed to aim at the problem that the finite element model of compsite component needs to be adjusted after mould surface compensation of composite forming mould.The virtual material model was used to realize the fully fitting of the component mesh and the compensated mould mesh.The typical component was used to verify the correctness of the method,and the experimental results of this method were discussed based on an example of a complex barrel-shaped panel.The results show that:(1)The curing deformation of T-stiffened panels and complex barrel-shaped panels can be significantly reduced by mould surface compensation;(2)The method proposed in this paper was used to test the curing deformation of T-stiffened panels and the maximum relative error between the measured test deviation and the numerical simulation deviation was 17.20%which meets the engineering acceptance standard;(3)The method of composite material forming mould compensation and component adaptive adjustment can avoid the reconstruction operation of component finite element model after mould compensation,improve the compensation efficiency,and improve the accuracy of the results.

关 键 词：复合材料成型 模具型面补偿 自适应调整 有限元 数值模拟分析 

分 类 号：TB332[一般工业技术—材料科学与工程]