机身大开口刚度补强设计及优化  

Research on Stiffness Reinforcement and Optimal Design in Large Opening of Fuselage

作　　者：杜鹏良 谭申刚[1] 李明强[1] 

机构地区：[1]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2016年第4期16-20,共5页Aeronautical Science & Technology

摘　　要：针对大开口机身补强设计问题,建立了等直段大开口机身模型,通过分析大开口机身结构承力和截面刚度数据,得到了给定刚度指标下大开口机身补强方法,并结合优化设计和有限元方法获得大开口机身结构加强件的优化几何参数,为类似大开口结构补强提供了设计指导。In respect of reinforcement on large opening of fuselage,built the finite element mode,then analyzed the ways of force transformation and cross-sectional stiffness,the reinforcement method under the given stiffness requirement was obtained,combining with optimization design and finite element method,got the parameters of side beam of large opening fuselage,and provides design guidance for reinforcement design.

关 键 词：大开口 结构补强 刚度 有限元 优化 

分 类 号：V223[航空宇航科学与技术—飞行器设计]