低速旋转炮弹偏流现象的研究

低速旋转弹丸在飞行过程中，在章动的作用下会产生偏流现象，进而影响弹丸的射击精度，本文针对这个问题进行了仿真研究。首先根据外弹道学理论给出的数学计算模型，对具体的实例进行计算仿真，然后结合仿真曲线和数据进行比较分析，结果发现偏流对低速发射弹丸的影响大，而对高速发射弹丸影响则比较小。为此要减小偏流的影响必须提高射击速度.对于低速弹丸必须根据方程计算结果以及弹道修正理论对实弹加以修正，从而提高低速旋转弹丸的射击精度。

Research on the deflective flow of the low-speed revolving cannonball

In the flying course of the low-speed revolving cannonball,deflective flow will appear because of the nutation which affects the shooting precision. In the paper, we have simulated the flying track of a certain cannonball in the horizontal based on the exterior ballistics. Finally, we have analysed the stimulant curve and the data to study the effect of the deflective flow and found the deflective flow made more inflence on the high-speed revolving cannonball than the low-speed. In order to improve the shooting accuracy of the low-speed revolving cannonball , we must revise ballistic trajectory.