复合材料机身Z形隔框RTM成型方案设计与验证  

Design and verification of RTM process for Z-shaped frame of composite fuselage

作　　者：刘钧天 陈吉平 邱春亮 苏佳智 LIU Juntian;CHEN Jiping;QIU Chunliang;SU Jiazhi(Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 201324,China;Composites Center of Commercial Aircraft Corporation of China,Shanghai 201324,China)

机构地区：[1]上海飞机制造有限公司,上海201324 [2]中国商飞复合材料中心,上海201324

出　　处：《复合材料科学与工程》2023年第7期91-97,共7页Composites Science and Engineering

基　　金：复材机身二期国家纵向课题(F-SFKT-0145)。

摘　　要：针对一种典型结构的复合材料机身Z形隔框零件,进行RTM(resin transfer moulding)成型工艺方案的设计与验证。对零件的注射方案进行设计,并结合PAM-RTM进行仿真,仿真结果显示树脂填充率可达到100%;研究注射压力与填充时间之间的关系,得知随着注射压力增加,填充时间先较快速减小后逐步变缓。进行了RTM成型模具的设计及制造,上下模可配合不同的底架完成不同工序的操作,并设计手动液压式升降机构解决了RTM工艺零件脱模困难的问题。对RTM工艺流程进行设计并完成制造验证,结果显示零件无显著内外部缺陷,厚度偏差在±4%范围内,纤维体积含量基本达到55%以上,零件型面基本满足要求,验证了Z形隔框RTM成型工艺方案的有效性。Design and verification of RTM(resin transfer moulding)process for a typical struture of composites fuselage Z-shaped frame parts.The injection scheme of the part is designed and simulated using PAM-RTM,the results show that the resin filling rate can reach 100%.Through the study of the relationship between injection pressure and filling time,it is found that with the increase of injection pressure,the filling time first decreases rapidly and then gradually slows down.Completed the design and manufacture of the RTM tooling,the upper and lower molds can cooperate with different chassis to complete the operation of different processes,and designed the manual hydraulic lifting mechanism to solve the problem of difficult demoulding of RTM process parts.Design of the RTM process flow and complete manufacturing verification,the results show that the part has no significant internal and external defects,thickness deviation within 4%,the volume content of fiber reaches more than 55%and the contour of the part basically meets the requirements.The effectiveness of the Z-shaped frame RTM forming process scheme is verified.

关 键 词：复合材料 树脂传递模塑成型(RTM) Z形隔框 方案设计 流动仿真 

分 类 号：TB332[一般工业技术—材料科学与工程]