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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 influence of underwater kinetic energy of explosives on underwater explosive forming and the impact of torpedo contact and non-contact explosion on the aperture of the target plate, under the conditions of submerged pressure, using nonlinear dynamics software AUTODYN-2D, The underwater simulation of concentrated charge is carried out. The results show that under the action of underwater resistance, the head of normal jet and rod jet will be eroded and lost, the deforming of explosive molded projectile itself is more serious, the jet head decay fastest and the rod jet second , The explosive forming projectile is the slowest; either the contact explosion or the non-contact explosion, the diameter of the rod jet penetrating the target plate is larger than that of the ordinary jet, the diameter of the perforation of the explosive forming projectile to the target plate is greater than that of the former two; , With the increase of the thickness of the water medium, the diameters of the common jet and the rod jet penetrating the target plate gradually decrease, while the diameter of the explosive forming projectile penetrating the target plate first increases and then decreases. The research results have some reference value for the design of the torpedo-shaped torpedo and improvement of the damage power of the torpedo warhead.