Abstract

This article describes a procedure for predicting the parameters of an electromagnetic field in thin flat metal sheets of magnetic cores, screens, and busbars in a pulse regime. The following parameters have been determined: magnetic intensity and current density, thermal and magnetic energy, temperature, magnetic flux and electric current, resistance and inductance, and acceptable thickness of the sheets. These parameters have been determined with consideration for the physical properties of materials and sizes of the sheets, as well as the amplitude, shape, and duration of a pulse of magnetic intensity on a sheet surface. The procedure that has been developed is based on solving the equations of an electromagnetic field by the operator and frequency methods, as well as using Duhamel’s integral. The obtained equations can be applied, for instance, in the Mathcad environment for engineering predictions of magnetic cores, screens, and busbars in a pulse regime during their automated engineering. The reliability of the procedure has been confirmed on the basis of a coincidence of magnetic intensities obtained by the frequency method and Duhamel’s integral.

中文翻译：

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薄金属板中脉冲电磁场​​的预测

摘要

本文介绍了一种在脉冲状态下预测磁芯，屏蔽层和母线薄金属薄板中电磁场参数的过程。确定了以下参数：磁强度和电流密度，热和磁能，温度，磁通量和电流，电阻和电感以及薄板的可接受厚度。确定这些参数时要考虑到材料的物理特性和薄片的尺寸，以及薄片表面上的磁强度脉冲的幅度，形状和持续时间。已经开发出的程序基于通过操作员和频率方法求解电磁场方程，以及使用Duhamel积分。可以应用获得的方程式，例如，在Mathcad环境中进行自动化过程中脉冲状态下的磁芯，屏蔽和母线的工程预测。该程序的可靠性已经通过频率方法和杜哈默积分获得的磁强度一致而得到确认。