The Research on Copper Material of the Permanent Magnet Eddy Current Coupling

Abstract

The distribution of eddy current field in the Permanent magnet eddy current coupling (PMEC) plays an important role in the PMEC performance. The main factors affecting the distribution of eddy current field are the magnetic field distribution and the material of the copper rotor. In this paper, Ni-Cu, H65 and Mn-Cu are used for the material of copper rotor. The structural parameters of the PMEC are determined, and the slip-torque characteristics of the PMEC are studied by using Ansoft. Then, the Slip-Torque characteristics of three copper materials in the PMEC are compared and studied. Finally, the best copper material is determined. According to the determined structural parameters, a 3-D model is built and the structural stability of the PMEC is verified by ANSYS. It provides an important reference for development of the PMEC. Keywords—permanent magnet eddy current coupling; copper material; ansoft; ANSYS