Parameters Optimization of Passive Electromagnetic Armor Based on Orthogonal Experiment

Abstract

In order to improve the defense ability of the passive electromagnetic armor (PEA), the parameters of the armor are optimized based on the orthogonal experiment. It analyzed the working principle of the PEA and the phase change of metal jet, and then the temperature control equation of the metal jet was obtained. After that the capacitance C, the charge voltage U and the distance of armor plates d were optimized based on the orthogonal experiment and the numerical simulation method of temperature field. At last, a group of optimized parameters were obtained. It can draw the conclusion from the research that the temperature distribution of the metal jet is not even, and the external surface of the metal jet has the highest temperature, as the internal side has the lowest temperature. Meanwhile, the charge voltage U has the greatest effect on the temperature of metal jet, and the capacitance C has the least effect. The research results are very important to the design and the application of PEA. Introduction As the development of the armament technology, the penetration ability of anti-tank weapons has been increased greatly, which brings serious challenge to the tanks and armor vehicles [1]. Then, how to improve the guard capacity of the armored vehicles is a hot spot of research for military scientists. The passive electromagnetic armor (PEA), one of the latest kind armor, can decrease the effective length of the metal jet caused by shaped charge, or even make it explode under the synthesis action of the ohmic heating effect, the electromagnetic force, and etc., which will decrease the penetration to the main armor of the tanks and armored vehicles. Then the survival probability will be improved. Thus, the technology of PEA is studied by different scientists home and abroad. Their researches mainly focus on the establishment of the mathematical models, principle analysis and experiment verification, and etc [5-8]. However, the optimal design of the PEA still needs further study. Thus, aiming to improve the working effect of the PEA, this paper will analyze the optimal design of the PEA based on the calculation and simulation module for temperature characteristics of high-speed metal jet designed by the research group. Principle of the PEA The working principle of PEA is illustrated in Fig.1. The PEA is usually composed of capacitors, armor plates and etc. The armor plates are connected with the capacitors [9]. When the high speed metal jet caused by high explosive anti-tank cartridge (HEAT) passes through the armor plates, the capacitors will discharge to the metal jet and generate high pulsed current, as well as strong electromagnetic field. The metal jet which is under the working of hydro-kinetic force effect and ohmic heating effect will deflect and disperse. Finally, the metal jet will be destroyed and the damage ability will be abated [10]. 2nd International Conference on Electrical and Electronic Engineering (EEE 2019) Copyright © 2019, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Advances in Engineering Research, volume 185