空心弹丸的研究

Hollow Projectile Study

空心弹丸基本上是一个中空薄壁圆管(因而又称管式弹丸),它的重量轻、初速高、气动性能好,从而使得膛口冲量小、弹道低伸、散布小,并且具有优越的侵彻效果。本文在前人研究成果的基础上,结合我们的试验研究情况,比较详细地叙述了这一新弹种的低阻性能、散布精度和侵彻性能;从理论上分析对比了空心弹丸和实心弹丸的陀螺稳定性;给出了空心弹丸的阻力特性近似估算方法;最后,就这一新弹种在弹药上应用的可能性问题提出了一些看法和建议。

Hollow projectile is virtually a thin-walled tube, also known as tube projectile. It is characterized by its light weight, high muzzle velocity and desired aerodynamic behaviour. Hence it provides the advantages of lower impulse, straighter trajectory, smaller dispersion and excellent penetrating power. Based on the past work of some other authors and integrated with the recent experiment results obtained by the authors themselves, this paper deals with the hollow projectile in a more detailed way. Here, its drag characteristics, accuracy of dispersion and penetrating power are fully described; its gyroscopic stability, with that of solid projectile, theoretically compared; the approximation method for estimating its drag characteristics developed; and, in the conclusion, the authors' opinions and recommendations concerning the military application potentialities of this new kind of projectile presented.