Numerical simulation of electromagnetic-acoustic transformation using Jiles-Atherton magnetic hysteresis model

Abstract

Abstract The paper presents the results of numerical simulation of electromagnetic-acoustic transformation using Jiles-Atherton magnetic hysteresis on the example of excitation and reception of a transverse wave through the thickness of the reference block CO-2 based on the W-shaped magnetic core and inductor in the form of a meander coil with in-phased conductors. Distributions and graphs of time dependence for the magnetic field, the field of eddy currents and the field of elastic deformations are given in comparison with the classical modeling approaches. Satisfactory convergence of the simulation results with experimental data was established by the example of the signal received by the inductor, the distribution of the normal component of the magnetic flux density in the gap of inductor positioning and the calculated double transformation coefficient.