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针对一种滚转稳定的固定翼双旋弹,提出了一种平均控制力大小可调节的弹道修正方法,并据此设计了该弹的制导与控制方法。根据固定翼双旋弹的高速旋转特性,在对其角运动方程进行简化后进行角运动分析,得到了弹体的合法向力与固定鸭舵偏转角度之间的关系,然后基于周期平均的概念提出了一种弹道修正组件以不同转速、不同振幅旋转以产生大小可控平均法向力的弹道修正方法,并通过六自由度弹道仿真验证了此方法的可行性。分析结果表明,相比于弹道修正组件固定的传统弹道修正方法,这种新型的弹道修正方法可以通过连续地控制平均法向力的大小和方向,实现固定翼双旋弹的制导与控制,消除弹道偏差,提高命中精度。
Aiming at a roll-stable fixed-wing double-helix projectile, a ballistic correction method with adjustable average control force is proposed, and the guidance and control method of the projectile is designed. According to the high-speed rotation characteristics of the fixed-wing double-helical projectile, after analyzing the angular motion of the fixed-wing double-helical projectile, the relationship between the normal force of the projectile and the deflection angle of the fixed helm is obtained, and then the concept of periodic averaging A trajectory correction method is proposed in which trajectory correction components are rotated at different speeds and amplitudes to generate a controlled average normal force. The feasibility of this method is verified by six degree of freedom trajectory simulation. The results show that compared with the traditional ballistic correction method, the new ballistic correction method can achieve the guidance and control of the fixed-wing dual-coil projectile by continuously controlling the average normal force size and direction, and eliminating Trajectory deviation, improve hit accuracy.