不同聚能装药水下作用效果的对比分析

Comparative analysis of underwater effect for different shaped charge

为研究不同聚能装药在水下的爆炸成型运动规律以及鱼雷接触与非接触爆炸时对靶板穿孔孔径的影响,在考虑水下压力的条件下利用非线性动力学软件AUTODYN-2D对不同聚能装药水下作用进行数值仿真研究。结果表明:在水下阻力的作用下,普通射流与杆式射流头部会被侵蚀而有所损失,爆炸成型弹丸自身的变形较严重,普通射流头部速度衰减最快,杆式射流次之,爆炸成型弹丸最慢;不论是接触爆炸还是非接触爆炸,杆式射流侵彻靶板的孔径要大于普通射流,爆炸成型弹丸对靶板的穿孔孔径要大于前两者;当鱼雷非接触爆炸时,随着水介质厚度的增大,普通射流与杆式射流侵彻靶板的孔径逐渐减小,而爆炸成型弹丸侵彻靶板的孔径会先增大后减小。研究结果对于聚能型鱼雷战斗部的设计与提高鱼雷战斗部毁伤威力具有一定参考价值。

In order to study the law of different shaped charge explosively formed in the water and the perforation diameter of the target plate when the torpedo is under contact and non-contact explosion, the nonlinear dynamics software AUTODYN-2D was used to simulate the effects of different shaped charge in the water when considering underwater pressure. The results show that the ordinary jet head and red-like jet head are eroded, and the deformation of the explosively formed projectile is more serious under the action of underwater resistance, the velocity attenuation of the ordinary jet head is the fastest, the rod jet is the second and the explosively formed projectile is the slowest. Whether the contact or non-contact explosion, the aperture of the target plate penetrated by rod jet is larger than that by the ordinary jet, and the perforated apertures penetrated by the explosively formed projectile are larger than those of the first two. When the torpedo is under non-contact explosion, with the increase of the thickness of the aqueous medium, the aperture of the target plate penetrated by the ordinary jet and rod jet gradually decreases, while the aperture penetrated by the explosively formed projectile increases first and then decreases. The research results of this paper have certain reference value for the design of shaped torpedo warhead and can improve the damage power of torpedo warhead.