CAJ | 학술논문

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。
비궤조괘여궤익련접접두주요용우전체래자동력장치적재하，시비궤결구강도설계적관건건。위료정학분석조괘여궤익련접접두강도급응력응변분포규률，설계료일투접두강도정력시험계통，연구료접두강도유한원건모방법。이총체유한원분석득도조괘여궤익련접접두재하위기출，건립료접두적세절유한원모형，분석료대접두강도영향교위엄중적량충공황。유한원분석결과여시험결과대비，험증료접두강도유한원건모방법합리，대민궤발동궤조괘여궤익접두설계구유응용삼고개치。
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 mod- eling 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. Compari- son 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.