CAJ | 학술논문

在自动空中加油(AAR, automated aerial refueling)对接过程中,加油机后方拖出的加油软管锥套受到加油机和受油机的双重气动干扰,呈现不规则摆动运动,受油机要实现与加油锥套的精确对接,要求其飞行控制系统具有鲁棒性和快速的自适应能力,为此提出采用自适应控制器方案,该方案以线性二次调节器(linear quadratic regulator, LQR)比例积分型控制器作为稳定闭环,在此基础上加入自适应控制器,仿真结果表明,采用自适应控制器的受油机自动空中加油飞行控制系统可以实现规定时间内的精确加油对接,既满足瞬态性能要求,又满足稳态精度要求,同时,还解决了由自适应参数跳动带来的舵机操纵过于频繁的问题。该方法可有效提高对接过程中受油机飞行控制系统的抗干扰能力,能够满足自动空中加油对接段的飞行控制要求。
재자동공중가유(AAR, automated aerial refueling)대접과정중,가유궤후방타출적가유연관추투수도가유궤화수유궤적쌍중기동간우,정현불규칙파동운동,수유궤요실현여가유추투적정학대접,요구기비행공제계통구유로봉성화쾌속적자괄응능력,위차제출채용자괄응공제기방안,해방안이선성이차조절기(linear quadratic regulator, LQR)비례적분형공제기작위은정폐배,재차기출상가입자괄응공제기,방진결과표명,채용자괄응공제기적수유궤자동공중가유비행공제계통가이실현규정시간내적정학가유대접,기만족순태성능요구,우만족은태정도요구,동시,환해결료유자괄응삼수도동대래적타궤조종과우빈번적문제。해방법가유효제고대접과정중수유궤비행공제계통적항간우능력,능구만족자동공중가유대접단적비행공제요구。
During the automated aerial refueling (AAR), when the receiver approaches to couple with a refueling drogue, the hose-drogue system undergoes a transient motion due to the receiver forebody aerodynamic effect, in addition to the tanker motion and downwash. Thus, the receiver requires an accurate flight control. For this purpose, we propose a novel adaptive controller on the basis of LQR proportional integral control for stabilizing the closed-loop, to realize the fast accurate refueling with desirable transient performance and the steady-state precision. Simulation results show that this method ensures the realization of an accurate AAR in a given finite time period by restraining the disturbance as well as reducing the model error, and meets the control requirements of AAR in both the transient and steady states.