An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

Abstract

An electromagnet and a float are needed to be designed for a magnetic suspension system. In this paper an optimized design of an electromagnet is being carried out based on minimum flux leakage and maximum amount of force that can be imparted on the float. This paper also compares different designs to find out advantages and disadvantages of these designs. Design starts from a simple and naïve design of electromagnet and then gradually improved until a satisfactory design is obtained. Different shapes of floats were also considered for an optimum design of float. Electromagnetic analysis is carried with commercial FEM (Finite Element Method) software to calculate different parameters of design. Later the result from the FEM software is verified by analytical calculation.

Cylindrical Electromagnets: An Accurate Magnetic Equivalent Circuit

“…The specifications of the electromagnet are presented in Table (1). Figure (6) shows the B-H curve of Steel-1008 in DC mode. The data of this diagram were extracted from ANSYS MAXWELL software and its accuracy was confirmed in comparison with the diagram presented in [1].…”