Improving torque per kilogram magnet of permanent magnet couplings using finite element analysis

Stig Högberg, Bogi Bech Jensen, Flemming Buus Bendixen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper presents the methodology and subsequent findings of a performance-improvement routine that employs automated finite element (FE) analysis to increase the torque-per-kilogram-magnet (TPKM) of a permanent magnet coupling (PMC). The routine is applied to a commercially available cylindrical PMC with rectangular permanent magnets (PM), and a new design is discovered which increases TPKM by 15.6%. Furthermore, the study is repeated using concave/convex-shaped PMs, which results in an increase of TPKM of 57.6%. The FE models are validated against experimental measurements of the static torque-performance of the PMC selected for design improvements. The new designs are constrained such that they do not inflict any significant changes to the manufacturing process of the investigated PMC. The routine is found to be readily implementable for investigating existing PMC designs.
Original languageEnglish
Title of host publication2013 IEEE International Electric Machines Drives Conference (IEMDC)
PublisherIEEE
Publication date2013
Pages1074-1079
ISBN (Print)978-1-4673-4975-8
ISBN (Electronic)978-1-4673-4973-4
DOIs
Publication statusPublished - 2013
Event2013 IEEE International Electric Machines & Drives Conference - Westin O'Hare, Chicago, IL, United States
Duration: 12 May 201315 May 2013

Conference

Conference2013 IEEE International Electric Machines & Drives Conference
LocationWestin O'Hare
CountryUnited States
CityChicago, IL
Period12/05/201315/05/2013

Keywords

  • Static torque performance
  • Torque-per-kg-magnet
  • Torque measurement
  • Permanent magnet coupling

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