民用飞机静定和超静定吊挂与机翼连接设计研究  

Research on the connection design of statically and statically indeterminate suspension and wing of civil aircraft

作　　者：万雨和 林森[1] 谈志晶[1] WAN Yuhe;LIN Sen;TAN Zhijing(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

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》2021年第4期37-43,共7页Civil Aircraft Design & Research

摘　　要：随着科学技术的迅速发展,我国民机事业迎来了发展的黄金期。为研究常见大型民用翼吊飞机吊挂的特点,以某型民用飞机的动力装置和机翼布置为限制条件,研究两种构型对飞机吊挂和机翼的影响。通过研究发现,静定吊挂传力路径清晰且不因某一处破坏而发生传力路径改变;超静定吊挂传力为多路传力模式,在发生一处破损后,传力路径会发生变化,载荷重新分配。通过有限元计算界面内力发现,在吊挂与机翼界面,超静定吊挂内力水平相比静定吊挂界面内力较大,对机翼局部设计影响较大。通过对比两种构型连接方式的界面传力和内力分析,为我国大型民用翼吊飞机吊挂结构的设计和研发提供参考。With the rapid development of science and technology, China’s civil aircraft industry has ushered in a golden period of development. In order to study the pylon characteristics of the large-scale civil aircraft, taking the power plant and wing layout of a civil aircraft as the limiting condition, the effects of the two configurations on the aircraft pylon and wing were studied. Statically determinate pylon transferring load paths are clear and load path can not change when any connection structure damages. Statically indeterminate pylon transferring load paths are not clear and the same direction load are transferred by many connection structures, especially, the load paths will be changed when one connection structure damages, and the loads will be redistributed. By FEM analysis, it is found that the interface force of statically indeterminate pylon is larger than that of static pylon at the interface of pylon and wing which has a greater impact on the local design of wing. By comparing loads transfer and interface forces analysis of the two connection mode, this paper provides a reference for the design and development of large civil aircraft in China.

关 键 词：FEM 静定 超静定 吊挂盒段 

分 类 号：V224[航空宇航科学与技术—飞行器设计]