聚能射流的水下成型及毁伤效果

为分析聚能射流在水介质中的运动规律、形态变化及对靶板的毁伤效果,对锥角药型罩结构的聚能战斗部形成的聚能射流进行数值仿真模拟.在考虑静水压力的条件下,用AUTODYN对聚能射流在水下1、10和50 m侵彻水介质时的形态变化、速度衰减及对靶板的侵彻效果进行了数值模拟,并与相同炸高下空气中形成的射流进行对比.结果表明:射流头部会随着水深的加深发生明显的堆积现象;速度在空腔中呈线性规律衰减,在水介质中呈指数规律衰减;相同炸高条件下,水中的聚能射流对靶板的侵彻孔径比空气中大.

Underwater Shaping and Damage Effect of Shaped Energy Jet

In order to analyze the motion law, shape change and damage effect of the shaped-energy jet in the water medium, the numerical simulation of the shaped-energy jet formed by the shaped-energy warhead of the cone-shaped charge-shaped cover structure is carried out. Under the condition of considering the hydrostatic pressure, AUTODYN is used to numerically simulate the shape change, velocity attenuation and penetration effect of the target plate when the shaped energy jet penetrates the water medium at 1 m, 10 m and 50 m underwater, and it is compared with the jet formed in the air at the same height. The results show that the jet head will accumulate obviously as the water depth deepens; the velocity decays linearly in the cavity and exponentially decays in the water medium; under the same explosive height conditions, the penetration aperture of the concentrated jet in the water into the target is larger than that in the air.