复合布局无人机平飞向悬停过渡阶段抗风性能分析  

Analysis of the wind disturbance rejection performance of the Quad-Plane during transition process from forward flight to hover

作　　者：李凡 宋笔锋[2] 王琨 魏嘉艺 LI Fan;SONG Bifeng;WANG Kun;WEI Jiayi(Xi'an Modern Control Technology Research Institute,Xi'an 710065,China;School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西安现代控制技术研究所,陕西西安710065 [2]西北工业大学航空学院,陕西西安710072

出　　处：《飞行力学》2024年第4期41-47,共7页Flight Dynamics

摘　　要：由于电动四旋翼-固定翼布局小型无人机(以下简称复合布局无人机)存在平飞向悬停过渡阶段抗风性能弱,严重制约复合布局无人机应用的问题。为了动态分析和提高复合布局无人机在过渡过程中的抗风性能,建立了气动-动力-控制学科耦合的飞行仿真系统,将过渡阶段分为固定翼减速阶段和四旋翼启动阶段,通过仿真揭示了复合布局无人机过渡阶段的侧风扰动响应规律。结果表明,复合布局无人机在四旋翼系统启动时的抗风性能最弱。在对过渡过程分析的基础上,提出了能够提高过渡阶段抗风性能的飞行策略,经飞行仿真表明,过渡阶段的抗风性能提升明显。Electric Quadrotor Fixed-Wing Hybrid Unmanned Air Vehicle(Quad-Plane)is facing the defect of poor wind disturbance rejection performance during the transition process from forward flight to hover mode,which limits its application.In order to dynamically analyze and enhance its wind disturbance rejection performance during the transition process,a flight simulation system com-bined aerodynamics/flight dynamics/flight control is proposed.By simulation,the transition process is divided into two stages named as fixed wing deaccelerating stage and quadrotor activating stage,and the response characteristics of the Quad-Plane to the sideward wind disturbance in the transition process is revealed.The simulation shows that the Quad-Plane has the weakest wind disturbance re-jection performance in second stage.Based on the analysis,the flight strategy to enhance the wind disturbance rejection performance is proposed.the flight simulation shows that the wind disturbance rejection performance is significantly improved.

关 键 词：复合布局无人机 飞行仿真 抗风性能 过渡阶段 

分 类 号：V279[航空宇航科学与技术—飞行器设计] V212