被动电磁装甲非线性力承载分析的力学、数学模型

Mechanical and Mathematical Model of Passive Electromagnetic Armor under Non-linear Load

电磁装甲技术是一项崭新的军用技术,目前,世界上许多军事强国的研究机构已经在积极地开展理论研究和缩比实验,并取得了很多的研究成果。在本文中,作者首次明确地提出了应用电磁力理论原理分析电磁装甲的问题。利用电磁学的理论建立了被动电磁装甲(PEMA)数学计算模型;以穿甲弹的穿甲杆为例,借助功能强大的有限元分析法,推导了采用能量法将分布力转化为集中力的求解过程。这一推导过程经过变形后同样适用于对金属射流作用原理的分析。

The passive electomagnetic armor is a new military technology. Currently,many military institutes from all over the world have been actively developing theoretical research and scale experiments; moreover, many achievements have been obtained . In this paper, the electric armor by using electromagnetic theory was first anualyzed. The acting principle of electromagnetic armor as well as its classification, was discussed. A mathematic model of the passive electromagnetic armor according to the electromagnetics was presented. Taking a penetrator as an example,the energy method is introduced to convert the distributing forces to concentrating ones by finite element analysis. This model is also suitable for analyzing metal jet theory after some transformation.