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针对飞行器复合材料常用加筋板结构,采用胶接共固化整体工艺成型T形加筋板。采用自行建立的压力测试方法测试了T形加筋板在热压罐成型过程的压力分布,通过吸胶量、筋条厚度的检测,分析了树脂在筋条内的流动形式,研究了树脂流动的影响因素及影响规律。结果表明:筋条不同部位明显存在压力分布不均,在压力差作用下树脂发生明显的面内流动,易产生富脂、厚度不均等缺陷,导致筋条拐角较厚,约是突缘和腹板厚度的1.11.4倍,模具组合方案、曲率半径、填充料含量明显影响树脂面内流动和纤维密实程度。
For aircraft composite materials commonly used stiffened plate structure, the overall process of bonding with a plastic molding T-shaped stiffener. The self-established pressure test method was used to test the pressure distribution of the T-shaped stiffener in the autoclave molding process. The flow pattern of the resin in the stiffener was analyzed by measuring the amount of adhesive tape and the thickness of the stiffener. The effects of resin flow Influential factors and influence laws. The results show that there are obvious uneven distribution of pressure in different parts of ribs, and the obvious in-plane flow of resin under the pressure difference makes it easy to produce defects such as fat-rich and uneven thickness, which leads to thicker corner of ribs, The plate thickness of 1.11.4 times, the mold combination program, the radius of curvature, filler content significantly affect the resin in-plane flow and fiber density.