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复合材料具有良好的设计性、工艺性,其比强度高、比刚度大的优点对于结构减重效果明显,目前空客和波音最新机型复合材料占比均超过50%。某型飞机复合材料平尾整流罩采用复合材料泡沫夹层结构,该结构取代铝合金结构,在重量、防火性和抗破坏等方面优势明显。本文基于新颖的气囊加载方式,采用了封闭金属容器限制方法,对整流罩进行了加载试验。通过对比基于Hypermesh的有限元整流罩建模分析结果,验证了某型飞机复合材料平尾整流罩结构满足刚度设计要求,为复合材料泡沫夹层结构在飞机结构设计中广泛应用,提供了试验和理论依据。
Composite materials have good design, technology, and its high strength, stiffness than the obvious effect of weight loss for the structure, the current Airbus and Boeing latest models accounted for more than 50% of composite materials. The composite flat tail fairing of a certain type of aircraft is made of composite foam sandwich structure. This structure replaces the aluminum alloy structure and has obvious advantages in terms of weight, fire resistance and anti-sabotage. Based on the novel airbag loading method, this paper adopts the method of confined metal container to carry out the loading test of the fairing. By comparing with the finite element model analysis results based on Hypermesh, it is verified that the composite tailrace fairing structure of a certain aircraft meets the design requirements of stiffness and the experimental and theoretical basis is provided for the wide application of composite foam sandwich structure in aircraft structure design .