民用飞机中央翼复合材料上壁板与1#肋对接选型研究  

Structure Joint Analysis of Composite Upper WingPanels and 1# Rib

作　　者：汤平[1] 李庆飞[1] 

机构地区：[1]上海飞机设计研究院,上海201210

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

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.

关 键 词：复合材料 机翼上壁板 1#肋 对接 有限元分析 

分 类 号：V271.1[航空宇航科学与技术—飞行器设计]