Dynamic Tests of an Optimized Linear Superconducting Levitation System

Author

Motta, E.S. ; Dias, D.H.N. ; Sotelo, G.G. ; Stephan, Richard

Author_Institution

Brazilian Nat. Nucl. Energy Comm. - CNEN, Brazil

Volume

23

Issue

3

fYear

2013

fDate

Jun-13

Firstpage

3600504

Lastpage

3600504

Abstract

In a superconducting magnetically levitated vehicle, the conventional wheel-rail system is substituted by a permanent magnet guideway (PMG) made with Nd-Fe-B magnets and carbon-steel interacting with bulk superconductors installed in the vehicle to promote the levitation. The main cost of this levitation system is the PMG. Two geometries that minimizes the total cost, for a given static levitation force (LF_min), are dynamically investigated and compared in this paper. Impulse response on time and frequency domains, stiffness, damping, and oscillation frequency are presented for different conditions. The experimental apparatus is also described.

Keywords

magnetic levitation; superconducting devices; Nd-Fe-B magnets; bulk superconductors; carbon-steel; damping; frequency domain; impulse response; optimized linear superconducting levitation system; oscillation frequency; permanent magnet guideway; static levitation force; stiffness; superconducting magnetically levitated vehicle; time domain; wheel-rail system; Damping; Geometry; Levitation; Superconducting magnets; Vehicle dynamics; Vehicles; Dynamic performance; levitation; optimization; superconductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2230351

Filename

6365242