Magnetic damping forces in figure-eight-shaped null-flux coil suspension systems

Author

He, Jianliang ; Coffey, Howard

Author_Institution

Argonne Nat. Lab., IL, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

4230

Lastpage

4232

Abstract

This paper discusses magnetic damping forces in figure-eight-shaped null-flux coil suspension systems, focusing on the Holloman Maglev rocket system. The paper also discusses simulating the damping plate, which is attached to the superconducting magnet by two short-circuited loop coils interacting with the figure-eight-shaped null-flux coils in the guideway. Closed-form formulas for the magnetic damping coefficient as functions of heave-and-sway displacements are derived by using a dynamic circuit model. These formulas are useful for dynamic stability studies

Keywords

coils; damping; electromagnetic forces; magnetic levitation; railways; stability; superconducting magnets; Holloman Maglev rocket system; closed-form formulas; damping plate simulation; dynamic circuit model; dynamic stability studies; figure-eight-shaped null-flux coil suspension; heave-and-sway displacements; magnetic damping forces; short-circuited loop coils; superconducting magnet; Circuit simulation; Couplings; Damping; Magnetic circuits; Magnetic flux; Magnetic levitation; Rockets; Superconducting coils; Superconducting magnets; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619719

Filename

619719