民用飞机机身壁板桁条端头设计方案研究  

Investigation on Stringer Joint of Aircraft Fuselage Panel

作　　者：朱林刚[1] 

机构地区：[1]上海飞机设计研究院强度设计研究部

出　　处：《中国科技信息》2012年第14期101-101,共1页China Science and Technology Information

摘　　要：在民用飞机机身结构设计中,长桁端部连接设计是飞机设计的难点之一。在机身壁板强度分析时,长桁接头主要以静强度为判定标准,而在受拉区域则需考虑其疲劳性能,而长桁和框连接钉的载荷是决定其疲劳性能的关键参数之一。本文通过对长桁端头连接的简化,利用MSC.PATRAN/NASTRAN中的紧固件模块进行模拟和分析,给出了长桁端部连接优化的斜削方案,供设计者参考。During the fuselage structural design of commercial aircraft, the run-out of the stringer is one of the difficulties of the aircraft design. During the stress analysis of fuselage panel, the static strength is the primary criteria, but the fatigue should be taken into consideration for the structure bearing tensile load, one of the key factors dominating the fatigue behavior is the shear load of the fastener connecting the stringer and the frame. This paper, invested several stringer run-- out designs using the fastener--maker module of MSC.PATRAN/NASTR, AN software, provides an optimized choice for aircraft designer to use.

关 键 词：机身结构 壁板 长桁 连接 疲劳 

分 类 号：V223[航空宇航科学与技术—飞行器设计]