摘 要
随着科技发展和社会进步，飞机行业的发展逐年递增，随着行业的发展，对飞机设计的研究也逐步加深。机翼是飞机重要组成部分，机翼机身对接也是目前比较重要的研究课题，这个环节在整个飞机设计中起到关键作用，其设计的好坏严重关系到飞机飞行性能和飞行安全，本文首先详细的介绍了飞机机翼机身对接结构及受力特点，然后应用CATIA软件对其进行了三维模型建模，最后应用ANSYS软件进行了有限元建模及分析，结果显示最大等效应力和变形量满足工程应用要求。
因为本次论文中建模软件CATIA和有限元分析软件ANSYS的使用，所以能够使我们对机身机翼对接结构的模型和机翼的变形量以及受力分析有了更加直观的认识及了解。
关键字：机身机翼对接接头、三维建模、有限元分析
Abstract
Science and technology development, social progress, the development of the aircraft industry is increasing year by year, with the development of the industry, the research on aircraft design is gradually deepening. Wing is one of the important parts of aircraft, wing fuselage connection is currently more important research topic, this link in the aircraft design to a key role, its design is good or bad, seriously relationship to aircraft flight performance and flight safety. Firstly, this paper detailed introduced flying wing aircraft fuselage connection structure and mechanical characteristics, and application software of CATIA three-dimensional modeling of the, finally the application of ANSYS software of finite element modeling and analysis, results show that the maximum equivalent should force and deformation meet the requirements of engineering applications.
Because the use of the modeling software CATIA and finite element analysis software ANSYS, so to enable us to fuselage wing docking structure model and wing deformation and stress analysis with more intuitive understanding and the understanding.
Key words: fuselage wing butt joint, 3D modeling, finite element analysis
目录
摘 要III
AbstractIV
1 绪论1
1.1选题背景及意义1
1.2研究主要内容3
2 飞机机身机翼对接结构形式5
2.1机翼机身的对接设计5
2.2机身侧边对接时机身的结构设计和对接接头形式5
2.3有中央翼通过时机翼机身的对接设计8
2.4变后掠机翼机身对接11
3 基于CATIA软件对机身机翼对接结构三维建模12
3.1计算机辅助软件CATIA介绍12
3.2 机身机翼对接结构三维模型建立12
3.2.1用CATIA软件对机身机翼对接结构进行建模12
3.2.2计算机辅助设计模型简单分析13
4 基于ANSYS软件对机身机翼对接结构进行有限元分析16
4.1计算机辅助工程软件ANSYS介绍16
4.2机身机翼对接结构有限元分析16
4.2.1前处理16
4.2.2材料参数设置17
4.2.3网格划分19
4.2.4边界条件设定及加载21
4.2.5机身机翼对接结构ANSYS后处理22
5 结论与体会28
5.1结论28
5.2体会28
参考文献29
致谢30
