【摘要】 通过二级轻气炮发射方式、激光无阻测量方法测量了不同材料、不同直径的球形破片在不同初速条件下长距离 (最大距离达 1 2 0m)飞行时的速度衰减规律。试验结果表明 :在同一初速条件下 ,球形破片长距离飞行时的衰减系数为常数 ;破片飞行空气阻力系数与破片初速有关 ,在战斗部设计关心的范围内 (1 .2～ 2 .2km/s) ,阻力系数与初速成线性关系。更多还原

【Abstract】 Using two-stage light gas gun and laser technique for velocity measurement,we studied the long-distance flight performances of spherical fragments with different materials and different diameters.The flight distance is 60～120 m,and the initial velocity is 1.2～2.2 km/s.The experimental results show that:(a) the velocity attenuation coefficient of spherical fragment is constant,and (b) the air drag coefficient is slightly affected by the initial velocity of spherical fragment,the air drag coefficient is a linear function of initial velocity.更多还原