摘要
机翼对接设计是飞机结构设计中的一个重要环节,其设计的好坏关系到飞机的飞行性能和使用安全性能。基于国外先进民用客机外翼与中央翼的对接结构形式,设计了三种复合材料机翼上壁板与1#肋的对接形式,并对其连接强度和失效模式进行了研究。利用商业有限元软件ABAQUS研究压缩载荷下对接构件的承载能力,根据计算结果针对长桁端头做数值模拟,研究其失效机理;最后,比较分析了三种构件的最终失效模式,为复合材料关键连接区的细节设计提供一种有效的方法。
The design of wing connection joint is one of the major parts in an aircraft design. The quality of the joints plays an important role in the safe operation and performance of an aircraft. Based on the center-outer wing connection joint design of foreign advanced civil aircrafts, three joint specimens were designed for composite wing upper panels. The bear strength and failure mode of joint specimens were studied. The failure process of the flange/skin interface was simulated by using the cohesive element in the commercial software ABAQUS. The research results indicated the debonding starting position of different joint specimens. The bearing capacity of joint specimens under tensile load and the bear strength of bolts were also researched. Finally an effective method was suggested for the design of composite key connection areas after comparing the ultimate failure mode.
出处
《民用飞机设计与研究》
2012年第B11期99-105,共7页
Civil Aircraft Design & Research
关键词
复合材料
机翼上壁板
1#肋
对接
有限元分析
Composite
Wing Lower Panels
1 # Rib
Connection Joint
Finite Element Method
