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爆轰驱动对钨珠终点弹道性能的影响
Influence of detonation driving on terminal ballistic effects of tungsten spheres
【摘要】 通过实验比较了理想球形钨珠和经历爆轰驱动的钨珠(初始为球形)主要终点弹道性能的差异,结果表明:(1)钨珠经爆轰驱动后,发生轻微的质量损失和变形现象,直径6.0 mm和7.5 mm钨珠的质量损失平均为8.4%;(2)对于理想球形钨珠,在同一初始速度条件下,衰减系数为常数,空气阻力系数仅与初始速度有关,两者成线性关系,而对于经历爆轰驱动的钨珠,衰减系数不再为常数,空气阻力系数与飞行速度有关,两者成线性关系;(3)爆轰驱动明显降低了钨珠的穿甲能力,但长距离飞行后,钨珠仍具有较强的穿甲能力,是破片式战斗部或杀爆战斗部较理想的选择。
【Abstract】 Tests were performed to investigate the influence of detonation driving on terminal ballistic effects of tungsten spheres.The experimental results show that(1) tungsten spheres are slightly deformed and damaged as a result of the high shock pulse during detonation,the average mass loss of tungsten spheres with a diameter of 6.0 mm and 7.5 mm is 8.4%;(2) for ideal tungsten spheres,the attenuation coefficient of velocity is constant,the air drag coefficient is a linear function of initial velocity,whereas for tungsten spheres formed by a warhead,the attenuation coefficient of velocity is not constant,the air drag coefficient is a linear function of flight velocity;(3) the deformation and damage of tungsten spheres exerts a obvious influence on the perforation thickness,for tungsten spheres with a diameter of 7.5 mm,experiments and calculations confirm a 35%-reduction in ballistic limit perforation thickness.
【Key words】 mechanics of explosion; terminal ballistic effect; detonation driving; tungsten sphere; air drag coefficient; perforation;
- 【文献出处】 爆炸与冲击 ,Explosion and Shock Waves , 编辑部邮箱 ,2008年06期
- 【分类号】TJ012
- 【被引频次】11
- 【下载频次】243