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

Stig Högberg; Bogi Bech Jensen; Flemming Buus Bendixen

doi:10.1109/IEMDC.2013.6556229

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

Stig Högberg, Bogi Bech Jensen, Flemming Buus Bendixen

Sintex A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-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 language	English
Title of host publication	2013 IEEE International Electric Machines Drives Conference (IEMDC)
Publisher	IEEE
Publication date	2013
Pages	1074-1079
ISBN (Print)	978-1-4673-4975-8
ISBN (Electronic)	978-1-4673-4973-4
DOIs	https://doi.org/10.1109/IEMDC.2013.6556229
Publication status	Published - 2013
Event	2013 IEEE International Electric Machines & Drives Conference - Westin O'Hare, Chicago, IL, United States Duration: 12 May 2013 → 15 May 2013

Conference

Conference	2013 IEEE International Electric Machines & Drives Conference
Location	Westin O'Hare
Country/Territory	United States
City	Chicago, IL
Period	12/05/2013 → 15/05/2013

Keywords

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

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10.1109/IEMDC.2013.6556229

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title = "Improving torque per kilogram magnet of permanent magnet couplings using finite element analysis",

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.",

keywords = "Static torque performance, Torque-per-kg-magnet, Torque measurement, Permanent magnet coupling",

author = "Stig H{\"o}gberg and Jensen, {Bogi Bech} and Bendixen, {Flemming Buus}",

year = "2013",

doi = "10.1109/IEMDC.2013.6556229",

language = "English",

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pages = "1074--1079",

booktitle = "2013 IEEE International Electric Machines Drives Conference (IEMDC)",

publisher = "IEEE",

address = "United States",

note = "2013 IEEE International Electric Machines & Drives Conference , IEMDC 2013 ; Conference date: 12-05-2013 Through 15-05-2013",

}

Högberg, S, Jensen, BB & Bendixen, FB 2013, Improving torque per kilogram magnet of permanent magnet couplings using finite element analysis. in 2013 IEEE International Electric Machines Drives Conference (IEMDC). IEEE, pp. 1074-1079, 2013 IEEE International Electric Machines & Drives Conference , Chicago, IL, United States, 12/05/2013. https://doi.org/10.1109/IEMDC.2013.6556229

Improving torque per kilogram magnet of permanent magnet couplings using finite element analysis. / Högberg, Stig; Jensen, Bogi Bech; Bendixen, Flemming Buus.
2013 IEEE International Electric Machines Drives Conference (IEMDC). IEEE, 2013. p. 1074-1079.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AB - 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.

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

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Keywords

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