Articles techniques et présentations

Priyam Bhavsar, Rakesh Deore2, Karuna Kalita 2 1. Department of Physics, IIT Guwahati, Guwahati, AS, India. 2. Department of Mechanical Engineering, IIT Guwahati, Guwahati, AS, India.

This paper investigates different pole configurations and their impact on passive radial magnetic bearings (PMBs) performance using COMSOL Multiphysics software. PMBs are magnetic bearings that utilize electromagnets to levitate a rotating shaft without needing external feedback control. These bearings offer advantages such as low friction, high speed, low maintenance, and long life. However, they also face challenges related to low stiffness, large axial forces, and nonlinear behavior. The study considers the NSNS type of pole configuration. The study aims to investigate magnetic flux density, radial stiffness, and axial force under different operating conditions. COMSOL Multiphysics software enables accurate modeling and simulation, facilitating a comprehensive analysis of the PMBs' behavior under various operating conditions. These findings can guide engineers and researchers in developing efficient and reliable Magnetic Bearings for various applications.

Keywords: Magnetic Bearing, Transverse Forces, Magnetic Flux Density