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针对采用旋转单通道控制的偏转弹头导弹,研究了其动力学特性。根据弹体的自旋特性,综合考虑弹头与弹体之间的相互作用,利用无根多刚体系统动力学方法在准弹体坐标系中建立了完整的偏转弹头导弹刚体动力学模型,并对其进行了线性化;在此基础上,对偏转弹头导弹通道间的耦合特性、弹头偏转对弹体运动的影响以及弹体动态特性进行了仿真分析。理论分析与仿真结果表明,偏转弹头导弹各通道之间是相互交连耦合的,弹头偏转将导致弹体向相反的方向运动,所建立的偏转弹头导弹动力学模型是正确合理的。
Aiming at the deflection warhead missile with rotary single-channel control, its dynamic characteristics are studied. According to the spin characteristic of the projectile, considering the interaction between the projectile and projectile, a rigid projectile rigid body dynamics model of the projectile is established in the projectile coordinate system by the method of rootless multi-body dynamics. Based on this, the coupling characteristics of the projectile, the influence of projectile deflection on projectile motion, and the projectile dynamic characteristics are analyzed. The theoretical analysis and simulation results show that the warheads are intercoupled with each other, and the warhead deflection will cause the projectile to move in the opposite direction. The established projectile warhead missile dynamic model is correct and reasonable.