大展弦比弹性无人机阵风载荷减缓设计  

Design of Gust Load Alleviation System for Elastic UAV with High Aspect Ratio

作　　者：彭玉酌 李婷婷 金志宏 PENG Yuzhuo;LI Tingting;JIN Zhihong(AVIC The First Aircraft Design Institute,Xi’an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089

出　　处：《飞机设计》2024年第6期25-30,共6页Aircraft Design

摘　　要：阵风载荷减缓控制是抑制飞机阵风响应的有力手段。基于小扰动线性化的飞机刚弹耦合动力学模型,以副翼和升降舵联合偏转控制方式,建立了闭环反馈的弹性飞机阵风载荷减缓方案;对不同波长阵风进行载荷减缓仿真分析。结果表明:飞机重心过载、翼尖过载、俯仰角速度和翼根弯矩均得到有效降低,翼根弯矩减缓率在10%以上,所设计的阵风载荷减缓方案可行,具有工程应用价值。Gust load alleviation control is a powerful means to suppress the aircraft gust response.This paper established a closed-loop feedback gust load alleviation system for elastic aircrafts based on a rigid-elastic coupling dynamic model with small disturbance linearization.The joint control mode of aileron and elevator was adopted.By using computer simulation for various gusts,the results showed that all the overload factor of gravity center and wingtip,pitch rate and wing root bending moment reduced with a more than 10%reduction in wing root bending moment.It is proved that the gust load alleviation system was effective and valuable in engineering application.

关 键 词：大展弦比 弹性飞机 阵风载荷 减缓 反馈控制 

分 类 号：V215.1[航空宇航科学与技术—航空宇航推进理论与工程]