Mitchell, J. K. and Jewell, G. J. and Wang, J. and Bingham, Chris and Howe, David (2002) Influence of an aperture on the performance of a two-degree-of-freedom iron-cored spherical permanent-magnet actuator. IEEE Transactions on Magnetics, 38 (6). pp. 3650-3653. ISSN 0018-9464

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Abstract

Abstract—This paper describes a computational and experimental study of a two-degree-of-freedom spherical permanent-magnet actuator equipped with an iron stator. In particular, it considers the effect of introducing an aperture in the stator core to facilitate access to the armature. The resultant magnetic field distribution in the region occupied by the stator windings, the net unbalanced radial force, and the resulting reluctance torque are determined by three-dimensional magnetostatic finite-element analysis. The predicted reluctance torque is validated experimentally, and its implications on actuator performance are described.

Item Type:	Article
Additional Information:	Abstract—This paper describes a computational and experimental study of a two-degree-of-freedom spherical permanent-magnet actuator equipped with an iron stator. In particular, it considers the effect of introducing an aperture in the stator core to facilitate access to the armature. The resultant magnetic field distribution in the region occupied by the stator windings, the net unbalanced radial force, and the resulting reluctance torque are determined by three-dimensional magnetostatic finite-element analysis. The predicted reluctance torque is validated experimentally, and its implications on actuator performance are described.
Keywords:	permanent magnet actuators, finite element modelling
Subjects:	H Engineering > H600 Electronic and Electrical Engineering
Divisions:	College of Sciences > Faculty of Science > Lincoln School of Engineering
Depositing User:	Paul Stewart
Date Deposited:	24 Apr 2010 18:51
Last Modified:	13 Mar 2013 08:36
URI:	http://eprints.lincoln.ac.uk/id/eprint/2352

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