By Topic

Eddy-current machines with permanent magnets and solid rotors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
B. Lequesne ; Gen. Motors Res. & Dev. Center, Warren, MI, USA ; Buyun Liu ; T. W. Nehl

This paper examines the possibility of using permanent magnets (PMs) in the design of solid-rotor eddy-current couplers and brakes. The analysis is based on a magnetostatic finite-element model modified to include an eddy-current distribution calculated in solid parts through an iterative process. Various rotor constructions, with a single layer of either iron, aluminum, or copper or with a composite layer of iron/aluminum or iron/copper, are investigated. The latter offers markedly superior performance, which should, in most cases, justify the extra construction complexity. Magnet construction, in particular the number of poles, is also investigated. The torque characteristic and the design of couplers using PMs seem to differ from their electromagnet-based counterparts, and the paper compares and contrasts the two, in order to identify the applicability of each. The model results compare satisfactorily with the test results obtained from a prototype device

Published in:

IEEE Transactions on Industry Applications  (Volume:33 ,  Issue: 5 )