大展弦比无人机地面滑跑动力学建模与分析  

Modeling and Analysis of Ground Dynamics of High Aspect Ratio UAV

作　　者：范大旭 李秀娟[1] 李春涛[1] 陈丽城 Fan Daxu;Li Xiujuan;Li Chuntao;Chen Licheng？(School of Automation,Nanjing University of Aeronautics ＆ Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学自动化学院，南京 210016

出　　处：《兵工自动化》2018年第10期70-76,共7页Ordnance Industry Automation

摘　　要：为建立准确的无人机地面滑跑模型,以某型前三点式轮式大展弦比无人机为研究对象,对其在地面滑跑过程进行动力学分析。根据风洞数据与空气动力学方程建立气动模型,根据发动机参数建立推力模型,根据起落架机械特性建立起落架模型,利用魔术公式建立机轮摩擦力模型,并在Matlab/Simulink环境下搭建数字模型,采用龙格库塔微分解算方法进行仿真验证。仿真结果表明:所建立的地面滑跑模型能够正确反映无人机在地面滑跑过程中的受力情况,证明了该建模方法是可行、有效的。In order to establish an accurate UAV taxiing model, the tricycle type UAV with high aspect ratio was chosen as the research object, and the dynamic analysis about the ground taxiing is carried out. Aerodynamic model was established according to the wind tunnel data and air dynamics equation, thrust model was set up according to the engine parameters, the landing gear model is established according to the gear mechanical properties and the magic formula is used to establish tire friction model. In the Matlab/Simulink environment, a digital model was built, and the simulation verification was carried out by using the differential algorithm method of Runge-Kutta. The simulation results show that the ground taxiing model can accurately reflect the force of the UAV on the ground, and it proves that the modeling method is feasible and effective.

关 键 词：无人机 地面模型 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]