轴向脉冲磁场增强金属射流侵彻穿深能力的因素

为掌握轴向脉冲磁场对金属射流的作用规律，基于破甲弹金属射流对目标的作用原理及磁场与金属射流之间的相互作用关系，设计了励磁线圈对破甲弹金属射流作用的试验系统，并开展了相关实弹试验，突破了金属射流形成和励磁线圈脉冲电流产生之间时序匹配的关键技术，得出了使金属射流发生有效变形的合理储能电容器组电参数和励磁线圈结构参数。试验结果表明，当电容器电压为5 kV、电容为1 200 μF、励磁线圈长度为50 mm时，破甲弹金属射流对目标靶板的侵彻穿深增量最大，破甲效果最佳；各因素对破甲弹金属射流侵彻穿深能力影响程度由大到小分别是电容器组充电电压、电容器组电容、线圈长度。研究成果为破甲弹威力电磁增强技术可行性论证、原理试验及励磁线圈结构设计提供了重要的理论和技术支撑。

Effect of axial pulse magnetic field on shaped charge jet action

In order to understand the effect of axial pulse magnetic field on the shaped charge jet (SCJ), we designed an experiment system and carried out related experiments based on the mechanism of a high-explosive anti-tank (HEAT) penetrating a target and the interaction between the magnetic field and SCJ, and came up with the key technology to match the time sequence between the formation of SCJ and the pulsed current generation of the coils, which was a major breakthrough. The experiment results show that the increment of the penetration depth for SCJ penetrating the target is largest when the voltage is 5 kV, the capacitor is 1 200 μF and the length of coil is 50 mm. The influence factors of the penetration depth are respectively the charging voltage of the capacitor, the capacitance and the coil length, each in a descending order. These results provide an important theoretical foundation and technical support for the feasibility demonstration, principle test and related physical design of the coil of the enhanced HEAT by the electromagnetic method.