论文信息 - Physical-and-Mathematical Model of Penetrators into Multilayer Media in the Presence of Large Pulsed Currents and Substantiate with Demonstration Experiments

Physical-and-Mathematical Model of Penetrators into Multilayer Media in the Presence of Large Pulsed Currents and Substantiate with Demonstration Experiments

Abstract : Physical-and-mathematical model of interaction processes in cumulative jet (CJ) influenced by pulsed electric current as physical basis of electrodynamics armor (EDA) has been studied. Magnetohydrodynamics model of CJ with current has been formulated. The role of the current integral and the rate of the discharge current growth as the main factors influencing the penetration deepness decrease have been shown. The critical magnitudes of both parameters as dependencies on jet charge caliber has been calculated. The parametric analysis of coordination of the discharge circuit parameters and dimensions of EDA on the base of numerical modeling has been done. The theoretical estimations provide the design of EDA experimental assemblies for EDA efficiency demonstration and the theoretical model checking. Two groups of experiments namely: with laboratory jet charges and with standard 2-100-mm jet charges has been conducted. The experimental and theoretical results are discussed. Technical problems of EDA realization and experimental modeling are discussed. It has been demonstrated that two and more times' decrease of the penetrating deepness can be provided at battery capacity of units of mF, discharge voltage 5-10 kV for jet charge caliber 20 - 100 mm.

V. A. Obukhov | A. F. Piskunkov | N. P. Shishaev

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