基于计转数定距技术和导程的弹道工程算法

Ballistic Engineering Algorithm Based on Turns-Counting Distance Measurement Technique and Lead

针对计转数定距技术在不同弹道情况下的适用性进行了分析,提出了一种基于转数和导程的弹道工程计算方法.使用空气动力学原理对弹丸飞行过程中导程的变化进行了理论分析,探讨了影响导程变化的主要因素及变化趋势,得出计转数定距技术适用于低伸弹道和曲射弹道上升段,且在弹道设计时应尽量避开跨音速区.通过试验验证了该工程算法,结果表明:计算结果与实际吻合度较高,该算法可以用来反算计转数定距所需转数,为计转数定距空炸技术的设计计算及工程研制提供参考.

The applicability of turns-counting distance measurement technique was analyzed in the case of different ballistic.A ballistic engineering calculation method was proposed based on the number of revolutions and lead.The change of the projectile lead during flight was analyzed based on the principle of aerodynamics.The main factors that lead to lead change and the trends of lead were discussed.The results show that turns-counting distance measurement technique applies to the low elongation ballistic and the rising phase of curved trajectory,and the transonic zone should be avoided in the trajectory design.The engineering algorithm is verified by experiments.The algorithm can be used to calculate the number of revolutions required by turns-counting distance measurement,which can provide a reference for the design calculations and engineering development of the turns-counting distance measurement technique.