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Acta Armamentarii ›› 2025, Vol. 46 ›› Issue (9): 240888-.doi: 10.12382/bgxb.2024.0888

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Active Disturbance Adaptive Composite Control of Stabilization System for Unmanned Vehicle-mounted Gun during Moving

YUAN Shusen1, HU Zhe1, YI Wenjun1,*(), DENG Wenxiang2, YAO Jianyong2, YANG Guolai2, GUAN Jun3, WANG Yimin4   

  1. 1 National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
    2 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
    3 College of Automation, Jiangsu University of Science and Technology, Zhenjiang 212100, Jiangsu, China
    4 Technical Department, Nanjing Intelligent Equipment Technology Center of Inner Mongolia First Machinery Group Co., Ltd., Nanjing 210014, Jiangsu, China
  • Received:2024-09-24 Online:2025-09-24
  • Contact: YI Wenjun

Abstract:

Aiming at the problem that the stabilization system of unmanned vehicle-mounted guns is affected by the complex nonlinearity and random disturbances during moving,a composite control strategy combining active disturbance rejection adaptive control is proposed.The electromechanical coupling dynamic equations of the unmanned vehicle-mounted gun stabilization system, which take into accountconsidering the actuator dynamics and model uncertainties,are established.Based on the backstepping approach,the adaptive control is ingeniously integrated with the extended state observer (ESO),constructing the parameter adaptation laws to update the unknown parameters of the system online.A dual-channel ESO is used to estimate the matched and unmatched disturbances in real time and provide feedforward compensation.Since the parameter uncertainties of the stabilization system are mainly addressed by adaptive technology,the learning burden of ESO is further reduced,improving the tracking performance of the stabilization system during moving and avoiding the impact of high-gain feedback.The stability analysis based on the Lyapunov function indicates that the asymptotic control of the vehicle-mounted gun can be achieved when only constant disturbances are present,and even in the presence of time-varying uncertainties,the prescribed transient performance and tracking accuracy can still be ensured.Comparative co-simulations and simulation tests demonstrate the effectiveness and feasibility of the active disturbance rejection adaptive composite control strategy.

Key words: unmanned vehicle-mounted gun, stabilization system, extended state observer, adaptive control, disturbance compensation

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