摘要
支撑翼布局飞行器因其特有的桁架支撑结构,有效解决了大展弦比飞行器结构质量过大的难题。以波音公司提出的支撑翼布局飞行器为研究对象,应用结构有限元分析与优化方法,对比分析了桁架结构连接形式、颤振约束对支撑翼结构布局的影响。分析结果表明,桁架以固接形式连接可比铰接形式质量轻39.7%;在固接形式下,考虑颤振约束后机翼质量增加了11.9%。由此表明结构形式确定后,颤振约束是决定机翼质量的重要因素,在此基础上构建了面向支撑翼布局的质量代理模型,可用于在概念设计阶段快速评估机翼质量。
One of the main characters of a truss-braced wing(TBW)configuration is the additional members(strut and jury)connecting the main wing and fuselage,which allows a higher aspect ratio wing has lower weight penalty of wing mass.This paper uses a typical Boeing aircraft version of the TBW configuration as an example.Based on structural finite element and optimization model,the influences of the truss joints and flutter constraint on wing mass are analyzed.The results show that the mass of fixed joint style is 39.7%lighter than hinged joint,the flutter constraint leads to 11.9%increase in wing mass.The flutter constraint has a significant effect on the wing mass.Based on the method,a surrogate model for TBW mass predication is built,which can be used in the conceptual design of TBW aircraft.
作者
邢宇
肖国华
余雄庆
王宇
Xing Yu;Xiao Guohua;Yu Xiongqing;Wang Yu(China Academy of Launch Vehicle Technology,Beijing,100076,China;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Jiangsu Nanjing,210016,China)
出处
《机械设计与制造工程》
2023年第3期59-62,共4页
Machine Design and Manufacturing Engineering
