Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

A variable speed magnetic gear box using contra-rotating input shafts

Shah, Laxman and Cruden, Andrew and Williams, Barry (2011) A variable speed magnetic gear box using contra-rotating input shafts. IEEE Transactions on Magnetics, 47 (2). 431 - 438. ISSN 0018-9464

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

This paper presents analytical, simulation, and practical analyses of a variable speed magnetic gearbox (MG) that uses contra-rotating (CR) input shafts. The CR turbine comprises two sets of rotors one behind the other: one rotor rotates in a clockwise direction while the other rotor rotates in an anticlockwise direction. Our magnetic gear magnetically combines the two CR input shafts into a single variable speed output shaft, and consists of three rotating parts: two contra-rotating low-speed input shafts and a single high-speed output shaft. Theoretical analysis is presented to show how to control the speed of the output shaft via control of the speeds of the two input shafts. This analysis is then supported by simulation and experimentation. The paper discusses the MG torque transmission capability by presenting pull-out torque test results and efficiency information when being driven through the different load torque shafts. The effective ratio of the MG is explained in terms of its torque curve result. A prototype gearbox was built, having been designed with an electromagnetic finite-element software package, and evaluated using a practical test rig.

Item type: Article
ID code: 33092
Keywords: magnetic gear box , contra-rotating input shafts , magnetic field, electromagnetic, Electrical engineering. Electronics Nuclear engineering, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 31 Aug 2011 15:25
Last modified: 27 Mar 2014 09:31
URI: http://strathprints.strath.ac.uk/id/eprint/33092

Actions (login required)

View Item