具有不确定性的倾转旋翼机过渡模态模糊控制设计  

Transition Mode Fuzzy Control Design of Tilt‑Rotor Aircraft with Uncertainty

作　　者：阎坤 牛梦瑶 陈超波[1] 沈海东 YAN Kun;NIU Mengyao;CHEN Chaobo;SHEN Haidong(College of Electronic Information Engineering,Xi’an Technological University,Xi’an 710000,China;College of Automation Engineering,Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China)

机构地区：[1]西安工业大学电子信息工程学院,西安710000 [2]南京航空航天大学自动化学院,南京211106

出　　处：《南京航空航天大学学报》2024年第6期1048-1056,共9页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：国家自然科学基金项目(62103315,62303367);教育部“春晖计划”合作科研项目(HZKY20220523);2023年陕西高校青年创新团队项目(2023997);信息融合技术教育部重点实验室基金项目(202312⁃IFTKFKT⁃007)。

摘　　要：针对存在未知不确定性的倾转旋翼机从直升机模态到固定翼模态的模型切换稳定性问题,提出了基于模型依赖平均驻留时间方法的模糊自适应切换控制策略。首先,建立了倾转旋翼机的纵向运动系统模型。其次,针对倾转旋翼机过渡过程存在的未知不确定性,采用模糊逻辑系统对其不确定项进行逼近;针对存在不确定性的倾转旋翼机平稳切换问题,提出了模糊自适应鲁棒飞行控制策略,并从理论分析层面严格证明了所提出控制器的有效性。最后,仿真结果表明所提出的控制方法能够有效地实现倾转旋翼机模态转换过程中的轨迹跟踪,提升了飞行器的操控性和稳定性。In order to guarantee the model switching stability of uncertain tilt⁃rotor aircraft from the helicopter mode to the fixed⁃wing mode,a fuzzy adaptive switching control strategy is proposed based on the model⁃dependent average residence dwell time method.Firstly,the longitudinal motion system model of tilt⁃rotor aircraft is established.Secondly,the fuzzy logic system is constructed to approximate and handle the unknown uncertainty in the mode transition process of tilt⁃rotor aircraft.The fuzzy adaptive robust flight control strategy is presented to ensure the smooth switching of tilt⁃rotor aircraft,and the effectiveness of the proposed controller is strictly proved via the theoretical analysis.Finally,the simulation results show that the proposed control method can effectively realize the trajectory tracking in the mode transition process of tilt⁃rotor aircraft,and improve the maneuverability and stability of the aircraft.

关 键 词：倾转旋翼机 模型依赖平均驻留时间 模糊逻辑系统 未知不确定性 模型参考自适应 

分 类 号：V32[航空宇航科学与技术—人机与环境工程] O231.2[理学—运筹学与控制论]