摘要
弹丸动态稳定性是保证弹丸稳定飞行的重要条件之一,但由于弹丸扰动方程结构比较复杂,系数也不是常数,使得求解较为困难。目前,外弹道中主要采用“冻结”系数法来求解弹丸的动态稳定性。本文基于李雅普诺夫运动稳定性理论,导出了弹丸动态稳定性条件的通式,并着重讨论了弹丸扰动方程采用“冻结”系数法的适用范围与其判据。
Dynamic stability of projectiles is one among the important factors ensuring stable flight. Yet as equations describing disturbances being rather complicated, their solution through analytic procedure is often dif ficult. Thus far the dynamic stability problem has generally been solved using the frozen-coefficient method in exterior ballistics. Based on Liapunow’s theory of stability, the general conditions about the dynamic stability of a projectile is deduced and the applicable region for the frozen-coefficient method is discussed.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1989年第1X期10-18,共9页
Acta Armamentarii
