摘要
为研究强电流环境对弹体内冲击片雷管换能元的影响,采用30 kA双指数函数波形的脉冲电流模拟弹体被雷电击中后的电流注入,对弹体不同位置处、不同注入电流脉宽条件下冲击片雷管中的感应电流及桥箔的温度响应进行了仿真。结果表明:随着注入电流脉宽从1.0μs减小至0.1μs,感应电流的幅值从数百安培降至不足10A;随着冲击片雷管位置逐渐远离电流注入位置,其感应电流幅值缓慢增大。脉宽为2.0μs的注入电流作用下,桥箔的最高温度达到了铜的常压沸点,对桥箔产生了不可逆的破坏作用,而脉宽为1.0μs及以下的注入电流几乎不会对桥箔造成影响。
In order to study the influence of strong current environment on the energy exchange element of the slapper detonator in the projectile,30 kA double exponential function waveform pulse current was used to simulate the current injection after the projectile was hit by lightning.The induced current in the slapper detonator and the temperature response of the bridge foil at different positions of the projectile and under different injection current pulse width were simulated.The results show that with the injection current pulse width decreases from 1.0μs to 0.1μs,the amplitude of induced current decreases from hundreds of amperes to less than 10 amperes;And as the position of the slapper detonator gradually moves away from the current injection position,the amplitude of the induced current increases slowly.Under pulse width of 2.0μs injection current,the highest temperature of the bridge foil reaches the atmospheric boiling point of copper,which causes irreversible damage to the bridge foil,while the injection current with pulse width of 1.0μs or less will hardly affect the bridge foil.
作者
雷凡
郭晓东
易涛
付秋菠
LEI Fan;GUO Xiao-dong;YI Tao;FU Qiu-bo(Institute of Chemical Materials,Chinese Academy of Engineering Physics,Mianyang,621999;Measurement and Testing Center of China Academy of Engineering Physics,Mianyang,621999;Laser Fusion Center,Chinese Academy of Engineering Physics,Mianyang,621999)
出处
《火工品》
CAS
CSCD
北大核心
2023年第1期28-31,共4页
Initiators & Pyrotechnics
关键词
冲击片雷管
强电流环境
感应电流
桥箔温度
Slapper detonator
Strong current environment
Induced current
Bridge foil temperature
