RESEARCH ARTICLE


Analysis of Eddy-Current and Magnetic Rail Brakes for High-Speed Trains



Sergey Kitanov, Anatoly Podol’skii*
Magnetical Technologies JSC, St. Petersburg, Russia.


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© 2008 Kitanov and Podol’skii.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Magnetical Technologies JSC, St. Petersburg, Russia; E-mail: podolsky@rol.ru


Abstract

The investigation of eddy-current and magnetic rail brake structures is described. Comparisons on experimental and computed operating characteristics of eddy-current and magnetic rail brakes for use on a tram-car, on a railroad vehicle, and on a high-speed train are presented. It is demonstrated that a brake built up from permanent magnet pieces that combines both magnetic rail brake and eddy-current brake permits of the most profitable braking action through the whole range of acceptable speeds – from zero (a parking brake) to 350 km/hr.