Flare longitudinal control for approach and landing of reusable launch vehicle
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摘要: 针对可重复使用飞行器(RLV)进场着陆拉平段的纵向控制问题,提出了反馈控制与前馈控制相结合的复合控制策略。设计反馈控制律参数,在此基础上基于时间加权高度跟踪误差/误差变化率平方积分指标优化设计前馈控制律参数。按输入补偿的前馈控制在不影响系统稳定性的前提下,提高了RLV对拉平着陆轨迹的跟踪精度,减小了RLV的接地散布。提出了基于积分器初值的控制律平滑切换方法,实现了RLV起落架释放前后不同控制律之间的平滑切换。仿真验证了拉平纵向复合控制和拉平过程中不同控制律之间平滑切换方法的有效性。
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关键词:
- 可重复使用飞行器(RLV) /
- 进场着陆 /
- 前馈校正 /
- 模型降阶 /
- 控制律切换
Abstract: To solve the flare longitudinal control problem for approach and landing of reusable launch vehicle (RLV), a compound control strategy based on combined feedback control and feedforward control is proposed. The feedback control law parameters were designed. The feedforward control law parameters were designed and optimized based on the index of time-weighted height tracking error and the integral for square of error change rate. Under the premise of not affecting the stability of the system, according to feedforward control with the input compensation, the tracking precision of RLV for the flare trajectory was improved and the ground distribution of RLV was reduced. The method of control law smooth switching was proposed by initial value of integrator, which realizes the smooth switching between the different control laws of the RLV landing gear before rand after release. Simulation verifies that flare longitudinal compound control law and the method of control law smooth switching are effective. -
[1] KLUEVER C A,NEAL D A.Approach and landing range guidance for an unpowered reusable launch vehicle[J].Journal of Guidance,Control,and Dynamics,2015,38(11):2057-2066. [2] SUN H F,YANG Z L,ZENG J P.New tracking-control strategy for airbreathing hypersonic vehicles[J].Journal of Guidance,Control,and Dynamics,2013,36(3):846-859. [3] XU H J,MIRMIRANI M,IOANNOU P A.Robust neural adaptive control of a hypersonic aircraft[C]//AIAA Guidance,Navigation,and Control Conference and Exhibit.Reston:AIAA,2003:1-8. [4] HALL C E,SHTESSEL Y B.Sliding mode disturbance observer-based control for a reusable launch vehicle[J].Journal of Guidance,Control,and Dynamics,2006,29(6):1315-1328. [5] 潘彦鹏, 周军, 呼卫军. 临近空间飞行器再入段复合控制律设计[J].系统工程与电子技术, 2013,35(11):2364-2369.PAN Y P,ZHOU J,HU W J.Design of compound control law for near space vehicle reentry[J].Systems Engineering and Electronics,2013,35(11):2364-2369(in Chinese). [6] BEVACQUA T,BEST E,HUIZERGA A,et al.Improved trajectory linearization flight controller for reusable launch vehicles[C]//42nd AIAA Aerospace Sciences Meeting and Exhibit.Reston:AIAA,2004:875-887. [7] LIU Z,WANG Y,HAO X W.Coordinated landing control of unmanned aerial vehicle[C]//2011 International Conference on Electronics,Communications and Control.Piscataway,NJ:IEEE Press,2011:1965-1970. [8] 郝现伟,王勇,杨业,等.变构型多操纵面RLV进场着陆轨迹优化设计[J].北京航空航天大学学报,2015,41(12):2232-2239.HAO X W,WANG Y,YANG Y,et al.Optimization design of approach and landing trajectory for variable configuration RLV with muti-control surfaces[J].Journal of Beijing University of Aeronautics and Astronautics,2015,41(12):2232-2239(in Chinese). [9] WISE K A,BRINKER J S.Linear quadratic flight control for ejection seats[J].Journal of Guidance,Control,and Dynamics,1996,19(1):15-22. [10] WISE K A.A trade study on missile autopilot design using optimal control theory:AIAA-2007-6673[R].Reston:AIAA,2007. [11] 姜文,贺昱曜,贺恭性.改进火炮拖动随动系统跟随特性的方法[J].火力与指挥控制, 2009,34(3):92-95.JIANG W,HE Y Y,HE G X.An improved method for the following character of gun servo system[J].Fire Control and Command Control,2009,34(3):92-95(in Chinese). [12] GUGERCIN S,ANTOULAS A C.A survey of model reduction by balanced truncation and some new results [J].International Journal of Control,2004,77(8):748-766. [13] 肖业伦.飞行器运动方程[M].北京:航空工业出版社,1987:64-81.XIAO Y L.Model of aerocraft[M].Beijing:Aviation Industry Press,1987:64-81(in Chinese). [14] 薛定宇.控制系统计算机辅助设计——Matlab语言与应用[M].3版.北京:清华大学出版社,2012:284-290.XUE D Y.Computer aided control systems design using Matlab language[M].3rd ed.Beijing:Tsinghua University Press,2012:284-290(in Chinese). [15] 杨一栋,牛佩翼,江浩.飞行控制系统模态转换瞬变抑制技术的研究[J].航空学报,1990, 11(1):88-92.YANG Y D,NIU P Y,JIANG H.The study of transient suppression techniques for multimode flight control system[J].Acta Aeronautica et Astronautica Sinica,1990,11(1):88-92 (in Chinese).
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