Experiments and Numerical Simulation of Small-scale Slapper Driven by Electrical Explosion

Based on the low inductance technology and parallel-plate transmission principle, an experimental apparatus of small-scale slapper initiating primary high explosives driven by electrical explosion is designed and established. The prob- lem of instantaneously and continuously measuring the velocity of the small-scale slapper is successfully solved by using the technique of laser interference. Compared with the results published on the literatures at home and abroad, data of the experimental and the numerical simulation shown in this paper are more proper to reflect the physical process of electrical explosion driving slapper. One-dimensional numerical simulation of electrical explosion driving slapper is done using the hydrodynamic code. The experimental results are consistent with the computed ones by introducing a power correction factor. In the end, the introduced power correction factor is discussed.     

电爆炸金属丝电路特性的研究

测定金属丝在不同条件下发生电爆炸时金属丝上的电压和电流,通过研究得到金属丝在不同条件下的电爆炸规律,在此基础上改进了单丝一维单温磁流体动力学数值计算模型,使之能够计算多丝并联电路.计算结果与实验结果基本吻合并能对各种含电爆炸元件的电路做出估算,为电爆炸断路开关的设计和改进提供参考.     

电爆炸驱动小尺寸冲击片实验与数值计算研究

基于低电感技术和平行板传输原理,设计并建立了一套小尺寸电爆炸驱动冲击片起爆始发猛炸药的实验装置。利用激光干涉技术解决了小尺寸电爆炸驱动冲击片速度的瞬时连续测量问题。与国外发表的实验与数值计算结果进行了比较,结果表明,本文的测量结果正确反映了电爆炸驱动冲击片的物理过程。利用流体动力学程序对电爆炸驱动小尺寸冲击片进行了一维数值计算,通过引入一个功率修正因子,计算结果与实验结果相一致。最后对引入的功率修正因子进行了讨论。