摘要
以某型无人机翼梁结构为研究对象,应用结构拓扑优化设计技术对其进行刚度优化设计。将翼梁腹板划分为多种不同的拓扑优化设计子区域,以结构刚度最大化为设计目标,考虑子区域材料用量、结构强度、翼尖变形等约束,对比了不同子区域划分方式下的设计结果,获得了适用于大展弦比机翼翼梁结构拓扑优化的腹板子区域划分方式,对原始翼梁结构进行改进,改进后的翼梁结构满足强度、刚度设计要求。
Based on the wing beam structure of a Unmanned Aerial Vehicle (UAV),the topology optimization design method was applied to maximize the structure stiffness.The web of the wing beam was divided into several different topological units.To obtain a maximum-stiffness design,the constraints of the strength and displacement of the wing tip were taken into account.Three different divided patterns of the web were researched using structural topology optimization design method.The optimal dividing pattern was obtained to do topology optimization design of a wing beam with high aspect-ratio.The original wing beam was redesigned using the proposed method.The maximum strength and the displacement of wing tip were both decreased.The purpose of weight-loss and performance-improvement was reached.
作者
郭文杰
聂小华
王立凯
罗利龙
段世慧
Guo Wenjie;Nie Xiaohua;Wang Likai;Luo Lilong;Duan Shihui(Aircraft Strength Research Institute of China,Xi'an 710065,China)
出处
《航空科学技术》
2018年第12期8-13,共6页
Aeronautical Science & Technology
关键词
大展弦比
翼梁
拓扑优化
减重
强度
high aspect-ratio
wing beam
topology optimization
weight-loss
strength
