基于水溶性型芯的RTM成型的整体化复合材料翼盒研制

Design and manufacture of RTM-made composite wing box based on the water-soluble mandrel

采用全数字化设计技术完成了复合材料整体翼盒的结构设计及铺层设计,同时采用PAM-RTM软件对复合材料翼盒的树脂传递模塑(RTM)成型工艺过程进行了树脂流动模拟,确定了底边线注射的最佳注射方式和工艺参数,并在此基础之上完成了RTM成型模具的设计和制造。采用基于水溶性型芯的RTM整体成型技术,制备了整体化的复合材料翼盒,验证了翼盒的RTM整体成型设计与制造工艺技术的有效性和可行性。

Based on the techniques of water-soluble mandrel and digital design,the integrated composite wing box was designed and manufactured by the resin transfer molding（RTM） process.The optimized injection pattern and process parameters were determined by the PAM-RTM code and the RTM mould was designed and fabricated from the results of resin flow simulation.According to the fiber overlay design and forming process,the integral composite wing box was manufactured to verify the validity and feasibility of the RTM technique for the integrated wing box.