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Study on Launch Dynamics of the Tank marching fire

Journal of Shanghai Jiaotong university(Science) 2016年第4期21卷 443-449页

作者：刘飞飞芮筱亭于海龙张建书周秦渤朱炜 Institute of Launch Dynamics Nanjing University of Science & Technology

As an army main battle equipment, it is required that the tank should have high firing accuracy and high first round hit probability during marching. The initial disturbance of the projectile is the premier factor that takes effect on the marching fire accuracy of the tank. And the marching fire accuracy of the tank depends on the launch dynamics behaviors of the tank. In this paper, the launch dynamics theory of a tank marching fire is studied, and its launch dynamics model is established. Based on the transfer matrix method for multibody system(MSTMM) and the automatic deduction theorem of overall transfer equations, the overall transfer equation and the overall transfer matrix of a tank multibody system are deduced; the launch dynamics equations of the tank marching fire are deduced, and the dynamic response of the tank system, the motion of projectile in barrel, the initial disturbance of the projectile and the vertical target dispersion are exactly simulated; meanwhile, the results of simulation are verified by tests. This work provides both theoretical foundation and simulation approaches for improving the marching fire accuracy of the tank.

关键词： marching fire launch dynamics firing accuracy initial disturbance

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An efficient and modular modeling for launch dynamics of tubed rockets on a moving launcher

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Defence Technology（防务技术） 2021年第6期17卷 2011-2026页

作者： Qin-bo Zhou Xiao-ting Rui Guo-ping Wang Jian-shu Zhang Institute of Launch Dynamics Nanjing University of Science and TechnologyNanjingJiangsu Province210094PR China

This paper develops a modular modeling and efficient formulation of launch dynamics with marching fire(LDMF)using a mixed formulation of the transfer matrix method for multibody systems(MSTMM)and Newton-Euler *** a ground-borne multiple launch rocket systems(MLRS),the focus is on the launching subsystem comprising the rocket,flexible tube,and tube *** launching subsystem is treated as a coupled rigid-flexible multibody system,where the rocket and tube tail are treated as rigid bodies while the flexible tube as a beam with large ***,the tube and tube tail can be elegantly handled by the MSTMM,a computationally efficient order-N ***,the equation of motion of the in-bore rocket with relative kinematics *** tube using the Newton-Euler method is ***,the rocket,tube,and tube tail dynamics are coupled,yielding the equation of motion of the launching subsystem that can be regarded as a building block and further integrated with other *** deduced dynamics equation of the launching subsystem is not limited to ground-borne MLRS but also fits for tanks,self-propelled artilleries,and other air-borne and naval-borne weapons undergoing large *** simulation results of LDMF are given and partially verified by the experiment.

关键词： Launch dynamics marching fire Transfer matrix method for multibody systems Multiple launch rocket system

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