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Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/73158

Type: Journal article
Title: Axial force between a thick coil and a cylindrical permanent magnet: optimising the geometry of an electromagnetic actuator
Author: Robertson, William Samuel
Cazzolato, Benjamin Seth
Zander, Anthony Charles
Citation: IEEE Transactions on Magnetics, 2012; 48(9):2479-2487
Publisher: IEEE
Issue Date: 2012
ISSN: 0018-9464
School/Discipline: School of Mechanical Engineering
Statement of
Responsibility: 
Will Robertson, Ben Cazzolato, and Anthony Zander
Abstract: In this paper, a variety of analytical/integral methods are compared for calculating the axial force between a cylindrical magnet and a “thick” solenoid that consists of many turns both radially and axially. Two newly developed techniques are introduced: one being numerical integration-based and the other completely analytical. These are compared to two other techniques, each shown to have various advantages in different contexts. One method in particular is introduced that is shown to be the most computationally efficient in the majority of actuator designs. This method is then used to optimize a typical “sleeve-type” magnet-coil actuator based on the cost function of peak force, and it is shown that optimal values of wire thickness and magnet-coil geometry can be chosen based on desired coil impedance and magnet volume.
Keywords: Electromagnetic forces; electromagnetic modeling; magnetic devices; magnetostatics
Rights: © 2012 IEEE
RMID: 0020121119
DOI: 10.1109/TMAG.2012.2194789
Appears in Collections:Environment Institute Publications
Mechanical Engineering publications
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