Interaction magnetic force calculation of permanent magnets using magnetization charges and discretization technique

摘要

This research includes a simple and fast semi-analytical approach for magnetic interaction force calculations based on fictitious magnetization charges and the discretization technique. Two different examples are analyzed: (1) calculation of the interaction magnetic force between laterally displaced cylindrical permanent magnets made of the same magnetic material and magnetized uniformly along their axes of symmetry (opposite direction) and (2) determination of the attraction force between a "horseshoe" permanent magnet of circular cross-section and an infinite linear magnetic plane with relative magnetic permeability μ_r. The results for the interaction magnetic force obtained by the proposed approach are compared with the finite-element method.