固定时间收敛的引信滚转角控制方法OA
A Control Method of Fuze Roll Angle with Fixed-Time Convergence
考虑在弹丸飞行过程中,二维弹道修正引信会受到轴向摩擦力矩和外界气动干扰力矩的影响导致系统抗干扰性弱和控制精度差的问题,提出了一种基于固定时间滑模控制的滚转角控制方法.该方法可以实现系统在固定时间内收敛,且不依赖于系统初始状态.利用固定时间收敛的相关理论分析了设计的控制系统的稳定性.另外,与现有的算法通过数值仿真的方式进行对比分析.仿真结果表明,提出的固定时间控制方法可以同时实现引信的滚转角与角速度控制系统在固定时间内快速精确响应,且系统的控制精度、快速性和鲁棒性均有所提高.
To address the issue of weak disturbance rejection and poor control accuracy in two-dimensional trajectory correction fuze-caused by the axial friction torque and the external aerodynamic disturbances during projectile flight-this study proposed a roll angle control method based on a fixed-time sliding mode control.This method ensured that the system converged within a fixed time,independent of its initial state.The stability of the designed control system was analyzed by using some relevant theories of the fixed-time convergence.Comparative numerical simulations with existing algorithms demonstrate that the proposed fixed-time control method enables both the roll angle and the angular velocity of the fuze to respond rapidly and accurately within a prescribed time.It also improves the system's control precision,response speed,and robustness.
王勇杰;周祖国;姜海旭;符超群
西安机电信息技术研究所,陕西 西安 710065西安机电信息技术研究所,陕西 西安 710065西安机电信息技术研究所,陕西 西安 710065西安机电信息技术研究所,陕西 西安 710065
军事科技
二维弹道修正引信固定时间滑模控制滚转角控制固定时间收敛数值仿真
two-dimensional trajectory correction fuzefixed-time sliding mode controlroll angle controlfixed-time convergencenumerical simulation
《现代防御技术》 2026 (1)
104-110,7
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