Force Characteristic Analysis of Permanent Magnet Linear Coupling with Vertical Magnetized using an Analytical Magnetic Field Calculations

해석적 방법을 이용한 수직방향으로 자화된 영구자석 선형커플링의 힘 특성 해석

Magnetic couplings are do not require any mechanical contact with the power transmitted to the secondary side according to the primary side. For this reason, well-suited for isolated systems such as vacuums or high pressure. So, this paper presents the force characteristic analysis of the permanent magnet (PM) linear coupling with vertical magnetized using an analytical magnetic field calculations. Based on the definition of governing equations and magnetic vector potential, we obtained the analytical solutions according to the boundary condition for each of the regions. Also, we derived from the force generated in the permanent magnet surface using the Maxwell stress tensor. The analytical results are proved the validity by comparing to the finite element method (FEM).