Design of a Halbach magnet array based on optimization techniques

Jae Seok Choi, Jeonghoon Yoo

Research output: Contribution to journalArticlepeer-review

131 Citations (Scopus)


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 languageEnglish
Article number4629414
Pages (from-to)2361-2366
Number of pages6
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - 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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