电磁发射超高速制导弹药急速滚转稳定性仿真研究  

Simulation Research on Rapid Rolling Stability of Electromagnetically Launched Hyper Velocity Projectile

作　　者：逯麒 陈坤 栗保明[1] LU Qi;CHEN Kun;LI Baoming(National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

机构地区：[1]南京理工大学瞬态物理国家重点实验室,江苏南京210094

出　　处：《火炮发射与控制学报》2022年第4期9-15,87,共8页Journal of Gun Launch & Control

基　　金：国防基础科研计划(61426042004)。

摘　　要：电磁发射超高速制导弹药出炮口动压极大,伺服舵机控制无法满足铰链力矩需求,为了维持弹道飞行稳定性,需要采用主动起旋、高速滚转和减旋止摆等一系列滚转运动控制策略。针对电磁发射超高速制导弹药的急速滚转运动进行研究,提出了适用于电磁发射超高速制导弹药的滚转运动稳定区域和减旋策略,通过对急速滚转过程进行建模仿真分析可知,电磁发射超高速制导弹药的滚转运动是一个高动态过程,滚转角速度变化与预置偏角、动压、起控时机等因素密切相关,主动起旋与减旋止摆控制策略为电磁发射超高速制导弹药飞行控制提供新颖可行的方法。The dynamic pressure at the muzzle of an electromagnetically launched hyper velocity projectile is extremely large,and the servo steering gear cannot meet the torque requirements of the hinge.In order to maintain the stability of the ballistic flight,a series of rolling motion control strategies such as active spin-up,high-speed roll,de-rotation and sway reduction are required.The rapid rolling motion of electromagnetically launched hyper velocity projectiles is studied in this paper,and the dynamic stable region of rolling motion and an unspinning strategy suitable for electromagnetically hyper velocity projectiles are proposed.Through modeling and simulation analysis of the rapid rolling process,it can be known that the rolling motion of electromagnetically launched hyper velocity projectiles is a highly dynamic process.The change of roll angular velocity is closely related to factors such as preset deflection angle,dynamic pressure,and timing of control.Active spin-up and de-rotation and anti-sway control strategies provide a novel and feasible method for the flight control of electromagnetically launched hyper velocity projectile.

关 键 词：电磁发射 超高速制导弹药 滚转稳定性 减旋止摆 滚转控制 

分 类 号：TJ413.6[兵器科学与技术—火炮、自动武器与弹药工程]