Design of a Halbach magnet array based on optimization techniques

Jae Seok Choi; Jeonghoon Yoo

doi:10.1109/TMAG.2008.2001482

Design of a Halbach magnet array based on optimization techniques

Jae Seok Choi, Jeonghoon Yoo

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

131 Citations (Scopus)

Abstract

We have designed a Halbach magnet array by using a numerical optimization method based on finite-element analysis. The magnetization direction of each element is defined as the design variable. The optimal magnet arrays composed of two and three linear magnet layers can then be investigated to increase the attractive, repulsive, and tangential magnetic forces between magnet layers. We have applied a magnet array maximizing the tangential force to a torsional spring composed of two- and three-magnet rings. The two-dimensional finite-element analysis incorporates optimization techniques such as the sequential linear programming and the adjoint variable method.

Original language	English
Article number	4629414
Pages (from-to)	2361-2366
Number of pages	6
Journal	IEEE Transactions on Magnetics
Volume	44
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2008.2001482
Publication status	Published - 2008 Oct

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported by Korea Science and Engineering Foundation (KOSEF) under Grant R01-2006-000-10074-0.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2008.2001482

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abstract = "We have designed a Halbach magnet array by using a numerical optimization method based on finite-element analysis. The magnetization direction of each element is defined as the design variable. The optimal magnet arrays composed of two and three linear magnet layers can then be investigated to increase the attractive, repulsive, and tangential magnetic forces between magnet layers. We have applied a magnet array maximizing the tangential force to a torsional spring composed of two- and three-magnet rings. The two-dimensional finite-element analysis incorporates optimization techniques such as the sequential linear programming and the adjoint variable method.",

author = "Choi, {Jae Seok} and Jeonghoon Yoo",

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AB - We have designed a Halbach magnet array by using a numerical optimization method based on finite-element analysis. The magnetization direction of each element is defined as the design variable. The optimal magnet arrays composed of two and three linear magnet layers can then be investigated to increase the attractive, repulsive, and tangential magnetic forces between magnet layers. We have applied a magnet array maximizing the tangential force to a torsional spring composed of two- and three-magnet rings. The two-dimensional finite-element analysis incorporates optimization techniques such as the sequential linear programming and the adjoint variable method.

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Design of a Halbach magnet array based on optimization techniques

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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