Fig. 1. Mesh of rails and armature导轨与电枢的剖分网格

Fig. 2. Input current输入的电流波形

Fig. 3. Current density distribution map of single rail at different moments不同时刻单导轨yz截面电流密度分布图

Fig. 4. Changes of resistance gradient with time电阻梯度随时间变化情况

Fig. 5. Topology of the PFUPFU电路拓扑结构

Fig. 6. Current waveform of PFUPFU电路的输出电流

Fig. 7. Trigger strategy of DESDES的触发策略

Fig. 8. Current, velocity and displacement curves of DES

Fig. 9. Velocity and displacement curves of breech-fed railgun