渐速膛线身管内的弹丸运动

PROJECTILE MOTION IN AN INCREASING TWIST RIFLED BORE

建立了非对称弹丸在挠性渐速膛线身管内的弹丸动力学模型和运动微分方程组,该方程组可用于对弹丸在渐速膛线身管内的任何情况(定心部不与膛壁接触、弹膛碰撞、贴膛)的运动进行求解。求解了非对称弹丸在渐速膛线理想身管内的运动规律,并将该运动与等齐膛线身管内的弹丸运动进行了对比,由此得出若干结论。

The dynamic medel and the differential equations of an unsymmetrical projectile traveling in a flexible, increasing twist rifled bore gun tube are developed in this paper. The equations can be used for the study of any case of a projectile traveling in the bore, i. e., when the bourrelet keeps in contact with, or not in contact with, or impacts with the bore. The patterns of motion of a projectile traveling in an ideal tncreasing twist rifled bore are studied and compared with that of a projectile traveling in an uniform twist rifled bore gun tube. Some conclusions have been rcached.