ELA-07自转旋翼机飞行力学特性分析  

Analysis on Flight Dynamics Characteristic for ELA-07 Autogyro

作　　者：马存旺[1] 林清 崔跃理 吴伟伟[1] Ma Cunwang;Lin Qing;Cui Yueli;Wu Weiwei(Cai Hong Unmanned Aerial Vehicle Technology Co,Ltd,China Academy of Aerospace Aerodynamics,Beijing 100074,China)

机构地区：[1]中国航天空气动力技术研究院彩虹无人机科技有限公司,北京100074

出　　处：《航空工程进展》2018年第3期368-374,共7页Advances in Aeronautical Science and Engineering

摘　　要：自转旋翼机与同类直升机相比,具有其独特优势,现已在民用领域得到广泛应用。为了给自转旋翼机的无人化飞行控制提供理论参考,分析其特点、优势及使用中存在的问题,基于该类飞行器的特点,在旋翼可变转速、螺旋桨、机体气动力基础上,建立自转旋翼机的飞行动力学模型;以整体倾斜桨盘式ELA-07AGRO为样例,对该自转旋翼机进行配平和稳定性计算;对其在巡航飞行时(120km/h)的操纵量、姿态角和模态进行提取,并与计算结果做对比分析。结果表明:在常规飞行速度范围内,样例自转旋翼机的桨盘纵向操纵单调向前压杆,横向操纵单调向左压杆(幅值很小),方向舵逐渐向右偏转,油门先减小后增大;稳定性方面,螺旋和荷兰滚模态的发散非常缓慢,而长/短周期、旋翼转速和滚转收敛模态都是稳定的,即样例自转旋翼机具有良好的飞行稳定性。Compared with similar helicopters,the autogyro has its unique advantages and has been widely applied in the civilian field.In order to provide theoretical reference for unmanned flight control of autogyro,the features,advantages and exiting problems of autogyro are analyzed thoroughly.Based on the variable speed of main rotor,propeller and airframe,the flight dynamic model of autogyro is built.The ELA-07 AGRO is taken as an sample of autogyro,which is modeled and trimmed;and its stability is analyzed.Besides,the manipulation variables,Euler angles and flight modes are extracted from the flight test data and compared with the results of the calculation.The comparisons show that in the regular speed range,the longitudinal control of the sample autogyro needs to be pushed forward monotonously;the lateral control needs to be mildly pushed left monotonously;the rudder is turn to left;the throttle first decrease and then increase.As for the stability of flight modes,the spiral and Dutch-roll model is slowly divergent,and in the long/short period,phugoid,rotorspeed and roll subsidence modes are stable.It can be concluded that the sample autogyro has good stability.

关 键 词：自转旋翼机 飞行动力学 配平 稳定性 

分 类 号：V212.4[航空宇航科学与技术—航空宇航推进理论与工程]