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防空指令修正弹药,设计中为满足多组、多发同时修正的作战需求,拟采用控制修正指令仅发送一次的修正方式。针对此种防空指令修正弹药的特点和采用以继电式舵机为修正机构的限定条件,应用周期平均力分析了继电式舵机的修正机理,建立了有控段弹道模型,研究了启控时间,舵机修正力的大小、方向及与之对应的换向角的计算方法,探讨了时间误差所包含的因素。最后基于蒙特卡洛法给定弹道偏差,对有控弹道进行了数值仿真。结果表明按照所设计修正方案,弹道修正曲线符合预期效果,为其工程化提供了理论参考。
Air defense command correction ammunition, to meet the design requirements of multiple, multiple concurrently revised operational requirements, the proposed correction control command sent only once correction. Aiming at the characteristics of this air defense command modification ammunition and the condition that the relay is used as the correction mechanism, the correction mechanism of the relay is analyzed by using the periodic average force. A controlled section ballistic model is established. Control time, the size and direction of steering gear correction force and its corresponding commutation angle, and discusses the factors involved in the time error. Finally, the controlled trajectory is numerically simulated based on the given trajectory deviation of Monte Carlo method. The results show that the trajectory correction curve accords with the expected result according to the designed correction scheme, which provides a theoretical reference for its engineering.