摘要
针对轻小型复合翼无人机重量轻、刚度大的结构性能需求特点,对1种复合翼无人机机翼进行了结构布局优化设计。首先,根据设计指标与功能要求,对机翼内部承力结构进行了初始布局设计,并对4种梁、肋布置方案进行了静力学分析,通过对比选取最优结果。然后,考虑到翼梁位置参数对机翼刚度的影响较大,对机翼进行参数化建模,并采用基于Kriging模型的响应曲面法对其进行优化。最后,对样机进行了静力测试试验,验证仿真优化结果。优化后机翼的强度满足约束条件,翼梢变形下降了49.9%。结果表明,机翼的传力路线更合理,结构的效率更高。
For the characteristics that light-small composite wing unmanned aerial vehicle（ UAV） requires light weight and large stiffness,the layout optimization of the wing structure is proposed in this paper. Firstly,according to design indexes and functional requirements,the layout design of the wing supporting structure is proposed. And a static analysis of four situations successively is done in which the number of wind spars and wing ribs is different,then find the best situation by contrast. Secondly,given that the location of wing spars has a big influence on the stiffness of wing,parameter model is set up,and a response surface method based on Kriging model is used to optimize the location of wing spars. Last,static test is carried out to validate the simulation optimization results. The stiffness of wing structure satisfies constraints after optimization,49. 9% wing tip deformation is decreased. The result shows that the force transmission line is more reasonable,and the structural efficiency is improved.
作者
邓朝武
贾宏光
薛志鹏
王鹏鹏
DENG Chaowu;JIA Hongguang;XUE Zhipeng;WANG Pengpeng(Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China;Chang Guang Satellite Technology Co. , Ltd, Changchun 130031, China)
出处
《机械设计与研究》
CSCD
北大核心
2018年第3期35-40,共6页
Machine Design And Research
