无人机变形机翼气动优化设计  

Aerodynamic Optimization Design of UAV Deformed Wing

作　　者：姜心淮 李春鹏[1] 刘宁 Jiang Xinhuai;Li Chunpeng;Liu Ning(Aero Science Key Lab of High Reynolds Aerodynamics Force at High Speed,AVIC Aerodynamics Research Institute,Shenyang 110034,China)

机构地区：[1]中国航空工业空气动力研究院高速高雷诺数气动力航空科技重点实验室,辽宁沈阳110034

出　　处：《航空科学技术》2024年第5期74-81,共8页Aeronautical Science & Technology

摘　　要：多目标优化设计对飞机性能的折中已不能满足人们日益增长的需求,设计出性能更全面的飞机是未来飞机设计的必然发展趋势。针对某无人机机翼气动优化问题,本文开展了机翼表面形状、翼型以及后缘变弯的综合设计研究。采用计算机模拟技术(CST)对翼型参数化,结合指关节变弯结构特点确定了后缘变形方式,并采用Catia二次开发方法对根梢比、机翼面积以及后缘变弯进行参数化,基于ARI_XunZhu优化平台的代理优化算法对其进行优化设计,最终得到两组变弯机翼构型。结果表明,将变弯设计融入整个机翼设计流程中能获得性能较好的机翼构型,得到的两组机翼在不同CL下的升阻比性能均优于初始模型;两组机翼的性能存在交叉,分别适用于高、低升力工况;机翼后缘变弯存在一定的规律,随着升力系数的增大,下弯角度和下弯区域增大。The compromise of multi-objective optimization design on aircraft performance can no longer meet people's growing needs,and designing aircraft with more comprehensive performance is the inevitable development trend of future aircraft design.Aiming at the aerodynamic optimization of a UAV wing,the comprehensive design of wing surface shape,airfoil and trailing edge bending was studied.CST method was used to parameterize the airfoil,and the trailing edge deformation mode was determined based on the characteristics of knuckle-bending structure.The root tip ratio,wing area and trailing edge bending were parameterized by Catia secondary development method.The agent optimization algorithm of ARI_XunZhu optimization platform was used to optimize the design,and finally two groups of bending wing configurations were obtained.The results show that the wing configuration with good performance can be obtained by integrating the bending design into the whole wing design process.The performance of the two wings with different lift coefficient is better than that of the initial model.The performance of the two wings is crossed,which is suitable for high and low lift conditions respectively.The bending of the trailing edge of the wing has a certain regularity,and with the increase of the lift coefficient,the bending angle and bending area also increase.

关 键 词：无人机 变弯机翼 气动优化 代理优化 参数化 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]