复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (9): 131-137.DOI: 10.19936/j.cnki.2096-8000.20260928.015

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飞行器罩体RTM成型质量优化研究

徐挺*, 王洋, 姚旗, 武海生, 于帅, 韩宝荘   

  1. 北京卫星制造厂有限公司,北京 100084
  • 收稿日期:2026-04-07 出版日期:2026-09-28 发布日期:2026-09-23
  • 通讯作者: 徐挺(1990—),女,硕士,高级工程师,研究方向为先进树脂基复合材料与结构,xuting202106@163.com。

Research on quality optimization of RTM molding for aircraft radome

XU Ting*, WANG Yang, YAO Qi, WU Haisheng, YU Shuai, HAN Baozhuang   

  1. Beijing Satellite Manufacturing Co., Ltd., Beijing 100084, China
  • Received:2026-04-07 Online:2026-09-28 Published:2026-09-23

摘要: 针对飞行器载荷罩体在树脂传递模塑(Resin Transfer Molding,RTM)成型批量生产中可能存在的尺寸偏差大、内部缺陷多、质量一致性差等工程问题,开展流道设计、模具热补偿、工艺参数优化及无损检测方法优选研究。以楔形大开口薄壁筒体构件(外径ΦA、高度H、壁厚1.6 mm)为对象,采用ESI Group数值模拟、GOM三维扫描、旋转对穿水超声等手段,系统分析树脂流动、热应力变形及缺陷评价机制。结果表明:触发式线式一进一出流道可显著提升填充均匀性,将注胶时间控制在工艺窗口期内;经模具热补偿与型面尺寸补偿后,最大外形偏差由4 mm 降至1.5 mm 以内;采用旋转对穿水超声可实现带铜网薄壁构件的高效无损检测,产品满足GJB 2895-97 标准C级要求。研究可为航空复合材料复杂曲面构件RTM成型质量一致性控制提供工程参考。

关键词: 树脂传递模塑成型, 罩体, 质量一致性, 流道优化, 热变形补偿, 水超声检测

Abstract: Aiming at the engineering problems such as large dimensional deviation, numerous internal defects and poor quality consistency that may occur in the RTM batch production for aircraft radome, studies were carried out on runner design, mold thermal compensation, process parameter optimization and optimization of non-destructive testing methods. Taking the wedge-shaped thin-walled cylinder component with a large opening (outer diameter ΦA, height H, wall thickness 1.6 mm) as the research object, the resin flow, thermal stress deformation and defect assessment mechanism were systematically analyzed by means of ESI Group numerical simulation, GOM 3D scanning and rotary through-transmission water ultrasonic testing. The results show that the triggered linear one-inlet-one-outlet runner can significantly improve the filling uniformity and control the injection time within the process window. After mold thermal compensation and profile dimension compensation, the maximum outline deviation is reduced from 4 mm to less than 1.5 mm. The rotary through-transmission water ultrasonic method enables efficient non-destructive testing of thin-walled components embedded with copper mesh, and the products meet the Class C requirements of GJB 2895-97. This research can provide engineering references for the quality consistency control of RTM molded complex curved components of aviation composite materials.

Key words: RTM, radome, quality consistency, runner optimization, thermal deformation compensation, water ultrasonic testing

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