超远程弹药的弹道修正模型仿真研究

摘要

This paper proposes a new correction model for ultra long distance ammunition and trajectory.Firstly,we calculate parameters such as resistance of ultra long range ammunition and projectile,normal force of projectile,cornering force of projectile and turning torque of projectile,and then build a trajectory coordinate system in ultra long distance ammunition space,a fixed coordinate system and the model of ultra long range ammunition and trajectory.Through detection of flight parameter of projectile obtained by measurement system,we predict horizontal falling point of projectile in real time.Finally,we calculate regulation quantity of bias current after control cabinet of ultra long range ammunition projectile bodies opened the damping fin.Thus,we build the correction model of ultra long range ammunition and trajectory.Simulation result shows that the proposed model can ensure the stability of correction of ultra long range ammunition and trajectory.It is a relatively scientific,reasonable and effective scheme for trajectory correction.%对超远程弹药弹道的修正,能够有效提升弹丸飞行稳定性.对超远程弹药弹道修正模型的构建,需要获得弹丸飞行参数,预测弹丸横向落点以执行修正指令,完成弹道的修正.传统方法将得到的弹药控制量的修正量,整合超远程弹药基准弹道数据,但忽略了预测弹丸横向落点,导致弹道修正效果不理想.提出新的超远程弹药弹道修正模型,首先计算超远程弹药弹丸阻力、弹丸法向力、弹丸侧偏力、弹丸翻转力矩等参数,建立超远程弹药空间弹道坐标系和一个固定坐标系,建立超远程弹药弹道模型;利用探测系统测量获得的弹丸飞行参数能够实时预测弹丸横向落点;最后通过计算超远程弹药弹体控制舱将阻尼片张开后产生的偏流调节量,建立超远程弹药弹道修正模型.仿真证明,所提模型能够保证超远程弹药弹道修正稳定性,是比较科学、合理、有效的弹道修正方案.