Longitudinal flying qualities evaluation of UAV system in remote mode
-
摘要: 建立了无人机系统模型,根据通信数据链存在时延、无人机飞行员不能直接感受到无人机的过载信息等特点,参照有人驾驶飞机飞行品质准则,提出了遥控模式下无人机系统纵向飞行品质的评定方法.对某算例无人机系统的纵向短周期飞行品质及驾驶员诱发振荡(PIO,Pilot-induced Oscillations)趋势进行了评定及分析.结果表明:通信数据链对无人机系统的短周期频率、阻尼等特性的影响较小;但是,无人机飞行员在地面控制站遥控操纵无人机时,通信数据链时延会增加无人机系统的延迟时间,导致闭环操纵的短周期飞行品质发生降级,并具有PIO倾向;为避免发生PIO,应避免无人机在遥控模式下执行快速机动飞行任务.Abstract: The unmanned aerial vehicle (UAV) system model was established. According to the characteristics such as the communication data-link exists time delay, the UAV pilot can not directly feel the UAV g-load, etc, with the reference to piloted aircraft flight quality criterion, a means to evaluate the longitudinal flying qualities of UAV system in the remote mode is proposed.The short-period flying qualities and the pilot-induced oscillations (PIO) tendency of an unmanned aircraft were evaluated. The results show that, the communication data-link has little effect on the short period frequency and damping characteristics of the UAV. However, when the UAV pilot control the aircraft in the ground control station, the data-link delay time increases the equivalent delay time of the UAV system, which result in the closed-loop short-period flying qualities of the UAV system becomes poor, and the UAV has PIO tendency. To avoid the PIO tendency, missions of fast maneuvering flight should be avoid when the UAV was remotely piloted.
-
Key words:
- aircraft /
- unmanned aerial vehicles /
- remote control /
- flying qualities /
- pilot-induced oscillations
-
[1] 陶于金,王建培.无人机飞行品质标准研究[J].飞行力学,2010,28(1):13-15 Tao Yujin,Wang Jianpei.Research on flying qualities criteria of the unmanned aerial vehicle[J].Flight Dynamics,2010,28(1):13-15(in Chinese) [2] Thurling A J,Greene K A.An improved predictive algorithm for time delay compensation in UAVS .AIAA 2001-4424,2001 [3] 丁团结,方威,王锋.无人机遥控驾驶关键技术研究与飞行品质分析[J].飞行力学,2011,29(2):17-19 Ding Tuanjie,Fang Wei,Wang Feng.Development of UAV remote-piloted key technology and flight qualities[J].Flight Dynamics,2011,29(2):17-19(in Chinese) [4] Holmberg J A,King D J,Leonard J R.Flying qualities specifications and design standards for unmanned air vehicles .AIAA 2008-6555,2008 [5] Cárdenas E M,Boschetti P J,Amerio A.Stability and flying qualities of an unmanned airplane using the vortex-lattice method[J].Journal of Aircraft,2009,46(4):1461-1464 [6] Howard R M,Bray R M,Lyons D F.Flying-qualities analysis of an unmanned air vehicle[J].Journal of Aircraft,1996,33(2):331-336 [7] Cottingy M C.An initial study to categorize unmanned aerial vehicles for flying qualities evaluation .AIAA 2009-307,2009 [8] MIL-STD-1797 A flying qualities of piloted aircraft[S] [9] 高金源,李陆豫,冯亚昌,等.飞机飞行品质[M].国防工业出版社,2003 Gao Jinyuan,Li Luyu,Feng Yachang,et al.Aircraft flying qualities[M].Beijing:National Defense Industry Press,2003 (in Chinese) [10] 宁国栋,方振平.Neal-Smith时域PIO预测准则及应用[J].北京航空航天大学学报,2005,31(4):407-451 Ning Guodong,Fang Zhenping.Time domain Neal-Smith criterion and PIO prediction[J].Journal of Beijing University of Aeronautics and Astronautics,2005,31(4):407-451 (in Chinese) -
点击查看大图
计量
- 文章访问数: 1698
- HTML全文浏览量: 140
- PDF下载量: 656
- 被引次数: 0
下载:
