民用飞机翼身对接斜撑板结构分析  

Analysis on Trap Panel Structure for Aircraft Outer Wing-fuselage Connection

作　　者：汤平[1] 刘婷[1] 张明星[1] Tang Ping;Liu Ting;Zhang Mingxing(Aircraft Structure & Strength Engineering Institute,Shanghai Aircraft Design andResearch Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院飞机结构强度工程技术所,上海201210

出　　处：《航空工程进展》2019年第2期212-220,共9页Advances in Aeronautical Science and Engineering

摘　　要：斜撑板结构可以充分发挥分散载荷和降低区域应力水平的作用。对不同机型的斜撑板结构的传力特性进行分析,总结斜撑板结构的设计要点。并以某机型选用斜撑板结构的设计为例,提出一种斜撑板结构的改进方案(斜撑板侧边和后梁框刚性连接、下边和对接带板充分连接),并与其他两种设计方案进行对比分析。结果表明:改进方案的斜撑板结构翼上区和舱上区的剪应力分别降低了19%和23%,后梁框的集中载荷降低了67%,结构效率更高、稳定性更好。The trap panel structure can give full play to the role of dispersing load and reducing regional stress level.The force transfer characteristics of different types of trap panel structures are analyzed,and the main design points of trap panel structures are summarized.Taking the design of a certain type of aircraft with diagonal brace plate as an example,an improved scheme of diagonal brace plate structure(rigid connection of side brace plate and rear beam frame,full connection of lower side and joint strip plate) is proposed,and compared with the other two design schemes.The results show that the shear stresses of the upper wing and upper cabin of the improved brace plate structure are reduced by 19% and 23%,respectively,and the concentrated load of the rear beam frame is reduced by 67%.The structure has higher efficiency and better stability.

关 键 词：对接结构 后梁 斜撑板 起落架舱 应力分布 

分 类 号：V224.1[航空宇航科学与技术—飞行器设计]