Modeling the dynamic suspension behavior of an eddy current device

Author

Paudel, Nirmal ; Bird, Jonathan Z. ; Paul, Subhra ; Bobba, Dheeraj

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of North Carolina at Charlotte, Charlotte, NC, USA

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

1692

Lastpage

1699

Abstract

A 2D steady-state analytic based eddy-current model for a conducting plate that is capable of accounting for frequency and velocity changes in two directions is derived. Only the source field on the surface of the conducting plate needs to be known. In addition, a 2D transient model is derived that is capable of accounting of continuous changes in the input conditions. Both analytic based models have been validated using finite element code. The transient and steady-state models are integrated into an electromechanical system where the magnetic source is a Halbach rotor. The accuracy of both calculation methods is compared. The stiffness and damping coefficients are derived using the steady-state model.

Keywords

damping; eddy currents; finite element analysis; magnetic devices; suspensions; transient analysis; 2D steady-state analytic model; 2D transient model; Halbach rotor; conducting plate; damping coefficients; dynamic suspension behavior modelling; eddy current device; eddy-current model; electromechanical system; finite element code; magnetic source; stiffness coefficients; Atmospheric modeling; Force; Mathematical model; Rotors; Steady-state; Transient analysis; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6063986

Filename

6063986