Topology optimized permanent magnet systems

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:437

Article

Bjork, R.¹  Bahl, C. R. H.¹  Insinga, A. R.¹ 

[1] Tech Univ Denmark DTU, Dept Energy Convers & Storage, Frederiksborgvej 399, DK-4000 Roskilde, Denmark

关键词: Topology optimization;    Halbach cylinder;    Magnetic field;    Permanent magnet flux sources;    Magnetic efficiency;   

DOI  :  10.1016/j.jmmm.2017.04.028

来源: Elsevier

【 摘 要 】

Topology optimization of permanent magnet systems consisting of permanent magnets, high permeability iron and air is presented. An implementation of topology optimization for magnetostatics is discussed and three examples are considered. The Halbach cylinder is topology optimized with iron and an increase of 15% in magnetic efficiency is shown. A topology optimized structure to concentrate a homogeneous field is shown to increase the magnitude of the field by 111%. Finally, a permanent magnet with alternating high and low field regions is topology optimized and a Kcool figure of merit of 0.472 is reached, which is an increase of 100% compared to a previous optimized design. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free