Choice of the Best Aspect Ratio in Magnets for Force Improvement

Magnetic actuators based on rare-earth permanent magnets can be optimized using a suitable amount of material through a correct choice of the aspect ratio and volume. Here, a systematic study is made of the force exhibited by two cylindrical magnets as a function of the aspect ratio, size and distan...

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Bibliographic Details
Published in:Key engineering materials 2013-03, Vol.543, p.101-104
Main Authors: Zazo, M., Raposo, V., Íñiguez, J., García Flores, Ana
Format: Article
Language:English
Subjects:
Actuators
Aspect ratio
Magnetization
Magnets
Materials selection
Mathematical analysis
Mathematical models
Rare earth metals
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Summary:Magnetic actuators based on rare-earth permanent magnets can be optimized using a suitable amount of material through a correct choice of the aspect ratio and volume. Here, a systematic study is made of the force exhibited by two cylindrical magnets as a function of the aspect ratio, size and distance. The magnetization will be fixed along the axis of the cylinders and the forces are calculated by finite-element simulations, as is usual in axisymmetric problems. Finally a set of experimental results corroborating the numerical calculations is presented.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.543.101