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Acta Armamentarii ›› 2024, Vol. 45 ›› Issue (11): 4175-4190.doi: 10.12382/bgxb.2024.0485

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Dynamics Modeling and Stability Control of Marching Tank Gun Control System

WANG Bin1,2, ZHANG Jianshu1,2,*(), DUAN Zhifeng1,2, YUE Qixing1,2, GANG Kuankuan1,2, MIAO Yangyang1,2   

  1. 1 Institute of Launch Dynamics,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China
    2 National Key Laboratory of Complex Multibody System Dynamics,Nanjing 210094,Jiangsu,China
  • Received:2024-06-19 Online:2024-11-26
  • Contact: ZHANG Jianshu

Abstract:

Taking the external disturbances caused by the uneven road surfaces of marching tank gun control system (TGCS) and the unbalanced moment of tank gun elevation motion during TGCS operationinto consideration,a two-axis coupled two-degrees-of-freedom (2-DOF) dynamics model of the marching TGCS is established using the second kind of Lagrange method. In terms of the actual force and motion state of TGCS,an electromechanical coupling dynamics model is established for the marching TGCS, which is equipped with permanent magnet synchronous motors (PMSM) in the azimuthal and elevational direction drive system and the gear reduction gearboxes and roller screws in the transmission mechanism. A stable tracking controller for marching tank with finite-time convergence characteristicsis designed to quickly reject the effects of internal and external disturbances of the marching TGCS on the stable tracking of target. This design is based on a nonsingular fast terminal sliding mode (NFTSM) control law and a linear extended state observer (LESO). The stability precision and arrival time of TGCS for marching tank are calculated based on the stable tracking process for targets. The computational results are then compared with those obtained by utilizing traditional control methods under various operating conditions. The findings demonstrate that the proposed tracking controller exhibits rapid response speed,strong robustness against disturbances,and high tracking accuracy,thereby validating the effectiveness of the controller design.

Key words: tank gun control system, dynamic modeling, electromechanical coupling, active disturbance rejection control, sliding mode control, stabilizing and tracking

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