为了研究破片阻力系数与飞行速度的关系,选用制式钢珠作为球形破片进行研究,并设计出模拟弹作为破片的发射装置,利用基于虚拟仪器的破片飞行速度测试系统,获得不同初速下,一定飞行距离上球形破片的速度变化,推算出球形破片阻力系数随飞行速度的变化规律。研究结果表明:通过对实验装置和实验系统的设计,采用合理的理论分析和试验相结合的方法,能够对球形破片飞行速度变化规律进行准确的研究。

In order to study the relation between fragment drag coefficient and flight velocity, the standard steel balls were chosen as spherical fragments and the simulated shell was designed as launching device to study the air drag coefficient of spherical fragment, the velocity attenuation regularity of spherical fragment was studied, and the variation rule of spherical fragment's drag with flight velocity was deduced. The research results show that by the design of test facilities and test system, and combining theory analysis with test measurement, the variation rule of spherical fragment's flight velocity can be studied precisely.