非标准条件对一维弹道修正弹弹道稳定性影响的研究

摘要

An analysis is made of the ballistic stability around the time when the damper opened,and also of the influence of trajectory wind and initial angular velocity perturbation to the ballistic stability of one dimension ballistic correction projectiles. With a certain type of 100mm one dimension trajectory correction projectile as the research object,six DOF rigid body model was established. The simulation results show that the influence of trajectory wind and initial angular velocity on the ballistic stability of one dimension ballistic correction projectiles is slight. The projectile can have stable flight under the general meteorology conditions and initial angular velocity perturbation when the damper opened. The opening of the damper can increase the attack angle,accompanied with a measure of concussion. The gyro stability is enhanced,and the following stability weakened when the damper opened. First,the dynamic stability is at first weakened and then enhanced when the damper opened. The yaw is in-creased after the damper opened.%分析了阻力片打开前后弹丸弹道稳定性的变化规律，分析了弹道风、初始角速度扰动对一维弹道修正弹弹道稳定性的影响。以某型100 mm一维弹道修正弹为研究对象，建立了6自由度刚体弹道模型。仿真结果表明：弹道风、初始角速度扰动对一维弹道修正弹弹道稳定性的影响较小，在一般气象条件及初始扰动下，阻力片打开后弹丸可稳定飞行；阻力片打开会使弹丸攻角增大并伴随一定幅值的振荡，陀螺稳定性增强，动态稳定性先减弱后增强，追随稳定性减弱，落点侧偏有一定增加。