为了给引信弹道炸分析和火炮多级炮口速度设计提供弹道环境参考,建立弹丸攻角微分方程,分析了弹丸追随稳定性、尾翼弹静稳定性和旋转弹陀螺稳定性,得到描述变号装药火炮弹丸飞行稳定性的攻角与炮口速度的函数关系。结果表明:无论是尾翼弹还是旋转弹,对于同一火炮而言,在射角相同的情况下,炮口速度低的弹丸飞行稳定性不如炮口速度高的。此外,炮口速度为跨音速情况时,旋转弹丸飞行稳定性也不易保证。

In order to provide ballistic environment reference for analysis of fuze ballistic explosion and design of multi-level muzzle velocity of artillery, based on differential equations of projectile angle-of-attack, trailing stability of projectile, static stability of finned projectile and gyro stability of rotating projectile were analyzed, a function of angle-of-attack and muzzle velocity was discovered, while flight stability of charge-variable projectile can be described by angle-of-attack. The result indicates that whether finned projectile or rotating projectile, for the same gun and angle-of-fire, projectile flight stability of high muzzle-velocity is better than the lower one. In addition, as for transonic muzzle velocity, flight stability of rotation projectile is difficult to guarantee.