小展弦比无尾飞翼式无人机控制律研究与仿真

摘要

Tailless flying wing UAV has excellent performance in aerodynamic , structure and stealth capability , but also has the shortcoming of poor controlling ability .A tailless flying wing UAV with low aspect-ratio is studied.Based on the aerodynamics data calculated by CFD and wind turner data , the sta-bility characteristics are analyzed .The influence of Spoiler/Slot Deflector on the UAV with low aspect-ra-tio is discussed .After analyzing the longitudinal modes , the flight control system is designed , the airplane mode is set up .By simulating the whole flying process in MATLAB , the feasibility of the control system is verified, which can give a reference for other similar flying-wing configuration designing .%无尾飞翼布局无人机具有高气动效率、结构强度以及良好隐身特性等突出优势，但也具有控制性能不佳的缺点。以某型小展弦比飞翼式无人机为研究对象，基于CFD仿真计算和风洞试验得到的气动数据，分析该型无人机的稳定特性，讨论了嵌入面式操纵面对小展弦比无人机的优劣。主要分析该无人机纵向模态，进而设计了飞行控制系统，搭建了飞机模型，并使用MAT-LAB仿真飞行过程，验证了控制系统的可行性，为飞翼无人机控制系统的设计提供参考。