摘要
旋翼是混合翼无人机的重要部件,探究旋翼位置对无人机气动特性的影响规律具有重要意义。采用数值方法分析典型混合翼无人机的气动特性,以升阻比和纵向静稳定性为优化目标,设计旋翼弦向、展向和垂向位置的三因素四水平正交试验;采用直观分析和计算分析方法,对旋翼位置三个因素的影响进行分析。结果表明:与初始的设计参数组合相比,正交试验设计得到的优化设计参数组合最大升阻比提升约2倍,俯仰力矩系数曲线的斜率增加约15%;就本文布局而言,试验因素对混合翼无人机气动特性的综合影响程度从大到小依次为弦向、展向和垂向位置。
Rotor is an important part of hybrid configuration unmanned aerial vehicle(UAV).It is of great signifi⁃cance to investigate the influence criteria of rotor positions on aerodynamic characteristics of UAV.The aerodynamic characteristics of a typical hybrid configuration UAV is analyzed by numerical method.Taking the lift-to-drag ratio and longitudinal static stability as the optimization objectives,a three-factor four-level orthogonal experimen⁃tal of the chord-wise,span-wise and vertical positions of the rotor is designed.The effects of three factors of rotor position are analyzed by means of intuitive analysis and computational analysis.The results show that the maximum lift-to-drag ratio of the optimized design parameter combination obtained by the orthogonal test design result is about 2 times larger than that of the initial design parameter combination,and the slope of the pitch moment coeffi⁃cient curve is increased by about 15%.For present configuration,the effect factors on the lift-to-drag ratio and the slope of the pitch moment coefficient curve are in a descending order as follows:chord-wise,span-wise and verti⁃cal positions.
作者
王晓璐
刘威威
陈昌宁
张一帆
WANG Xiaolu;LIU Weiwei;CHEN Changning;ZHANG Yifan(School of Aerospace Engineering,Zhengzhou University of Aeronautics,Zhengzhou 450046,China)
出处
《航空工程进展》
2025年第1期26-36,44,共12页
Advances in Aeronautical Science and Engineering
基金
国家自然科学基金(52206059)
中国科协青年人才托举工程项目(YESS20220545)
河南省科技攻关计划项目(232102220029,232102220035)
河南省通用航空技术重点实验室开放基金(ZHKF-230201,240211)。
关键词
混合翼无人机
旋翼位置
正交试验
气动优化
气动特性
hybrid configuration UAV
rotor position
orthogonal experiment
aerodynamic optimization
aerody⁃namic characteristics
作者简介
通信作者:王晓璐(1982-),男,博士,教授。E-mail:wangxl@zua.edu.cn。
