柔性变体飞行器梳齿形翼肋结构的设计与仿真  

Design and Simulation of Comb Wing Rib Structure of Flexible Variant Aircraft

作　　者：段月茹 关世玺[1] DUAN Yueru;GUAN Shixi(School of Aerospace Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学航空宇航学院,山西太原030051

出　　处：《中北大学学报(自然科学版)》2025年第2期181-187,共7页Journal of North University of China(Natural Science Edition)

基　　金：中央引导地方科技发展资金项目(YDZX20201400001519)。

摘　　要：察打一体飞行器要求满足宽速域、复杂多变的任务环境,传统的固定翼飞行器无法满足现在的诸多飞行要求。针对这种情况,设计了一种梳齿形翼肋结构,通过控制智能材料驱动翼肋变形来主动改变机翼的外形,从而提高飞行器的气动性能以适应智能变形无人机的任务环境。基于Ansys Workbench对翼肋结构开展了静力学分析并对弦向变弯动态变形过程进行了仿真分析,以翼肋结构前后缘变形角度为关键优化目标,对翼肋结构参数进行优化,从而得到最佳的翼肋结构参数组合。实验结果表明,优化后的翼肋结构在满足屈服强度要求的前提下,可以实现翼肋前缘偏转10.75°,后缘偏转10.75°,这一变形不仅提升了飞行器的升阻比,而且有效改善了亚声速条件下飞行器的气动性能。本文提出的由智能材料驱动的梳齿形翼肋结构,能够实现前后缘的稳定变形,增强了飞行器的爬升能力,降低了燃油消耗,还提供了更加灵活和高效的飞行操控性能。本文采用仿真实验的方法,结果与实际存在一定误差,后续可进行实物的风洞实验。The integrated aircraft needs to meet the wide speed range,complex and changeable mission environment,and the traditional fixed-wing aircraft can not meet many flight requirements.In view of this situation,a comb wing rib structure was designed to actively change the shape of the wing by controlling the deformation of the wing rib driven by intelligent materials,which can improve the aerodynamic perfor-mance of the aircraft,and adapt to the task environment of the intelligent deformation UAV.Based on Ansys Workbench,the static analysis of the wing rib structure was carried out and the dynamic deforma-tion process of the chord bending was simulated.The deformation angle of the front and back edges of the wing rib structure was taken as the key optimization objective to optimize the structure parameters of the wing rib,so as to obtain the best combination of structural parameters of the wing rib.The experimental results show that the optimized wing fin structure can achieve a leading edge deflection of 10.75°and a trailing edge deflection of 10.75°on the premise of meeting the yield strength requirements.This deforma-tion not only improves the lift-drag ratio of the aircraft,but also effectively improves the aerodynamic per-formance of the aircraft under subsonic conditions.The comb wing rib structure driven by intelligent mate-rials proposed in this paper can realize the stable deformation of the front and rear edges,enhance the climbing ability of the aircraft,and reduce fuel consumption,and provide more flexible and efficient flight control performance.This paper uses the method of simulation experiment,and the results have some errors with the reality.We can use the actual wind tunnel experiment in the future.

关 键 词：变体机翼 翼肋结构 智能材料 智能驱动 飞行器 

分 类 号：V224.4[航空宇航科学与技术—飞行器设计]