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发动机吊挂与机翼连接接头强度分析与试验
引用本文:孙滨,林鸿志,谭伟,薛彩军.发动机吊挂与机翼连接接头强度分析与试验[J].航空工程进展,2012,3(3):300-304,331.
作者姓名:孙滨  林鸿志  谭伟  薛彩军
作者单位:南京航空航天大学飞行器先进设计技术国防重点学科实验室,南京,210016
基金项目:南京航空航天大学研究生创新基地(实验室)开放基金
摘    要:飞机吊挂与机翼连接接头主要用于传递来自动力装置的载荷,是飞机结构强度设计的关键件。为了精确分析吊挂与机翼连接接头强度及应力应变分布规律,设计了一套接头强度静力试验系统,研究了接头强度有限元建模方法。以总体有限元分析得到吊挂与机翼连接接头载荷为基础,建立了接头的细节有限元模型,分析了对接头强度影响较为严重的两种工况。有限元分析结果与试验结果对比,验证了接头强度有限元建模方法合理,对民机发动机吊挂与机翼接头设计具有应用参考价值。

关 键 词:大型客机  吊挂静力试验  吊挂与机翼接头  有限元模型

Strength Analysis and Test on Connecting Joints between Aero Engine Pylon and Wing
Sun Bin, Lin Hongzhi, Tan Wei, Xue Caijun.Strength Analysis and Test on Connecting Joints between Aero Engine Pylon and Wing[J].Advances in Aeronautical Science and Engineering,2012,3(3):300-304,331.
Authors:Sun Bin  Lin Hongzhi  Tan Wei  Xue Caijun
Institution:(Key Laboratory of Fundamental Science for National Defense-advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
Abstract:The connecting joints between aircraft pylon and wing which are mainly used for transferring loads from aero engine are critical parts of aircraft structure and strength design. In order to analyze the joint strength as well as stress and strain distribution accurately, a static test system is established, and a finite element modeling method for the connecting joints is studied. Detailed finite element model is built based on the joint loads obtaining from the overall finite element model, and two serious load cases for the joints are analyzed. Comparison of computing results and test results demonstrates that the finite element modeling method of joint strength is reasonable, which is of an application and reference value for the joint design between aero engine pylon and wing.
Keywords:large commercial aircraft  pylon static test  joint of pylon and wing  finite element model
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