On the Mechanical Strength of Rotors with a Dual-Phase Magnetic Material

Abstract

Dual-phase magnetic material, despite the complex technology of its production, remains one of the promising design solutions for a number of electric machines, which can remove their inherent disadvantages and improve their output characteristics. The possibility of controlling the magnetic flux direction increasingly strongly attracts research community’s attention; however, most of the issues are still not covered in publications. One of them is maintenance of satisfactory mechanical characteristics of rotors with permanent magnets recessed into the magnetic circuit to increase the maximum possible rotation speed. Mechanical characteristics of the rotor with permanent magnets recessed into the magnetic circuit are analyzed. Numerical calculation show that the use of a two phase magnetic material can significantly enhance the mechanical strength of the rotor and increase the maximum possible rotational speed.