民用飞机气密框加强件连接设计分析  

Design and Analysis on the Reinforcement Components of Airtight Frame of Civil Aircraft

作　　者：李韦翰[1] 

机构地区：[1]上海飞机设计研究院结构部,中国上海201210

出　　处：《科技视界》2017年第5期291-291,190,共2页Science & Technology Vision

摘　　要：民用飞机气密框位于飞机主起舱开口的两端,主要起着气密承压的作用,其表面布置一批加强件以承担气密载荷,加强件与气密腹板使用铆钉连接,气密腹板受铆钉头作用在气密载荷反复加载下会发生疲劳失效。本文通过有限元软件对此结构形式进行仿真模拟以校核其疲劳强度。Civil aircraft airtight frame is located in both ends of the aircraft main landing gear cabin, mainly bear the airtight pressure load.A number of reinforcement components to bear the airtight pressure load on the surface,Reinforcement components and airtight web are connected with rivets.The fatigue failure of the airtight web occurs under repeated loading of airtight loads and the effect of the head of rivet.ln this paper,the finite element software is used to simulate the fatigue strength of this structure above.

关 键 词：民用飞机 气密框 有限元分析 疲劳强度 DFR 

分 类 号：TU272.5[建筑科学—建筑设计及理论]