Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/267694 |
Resumo: | This work analyses the effects of segmentation followed by parallel magnetization of ring-shaped NdFeB permanent magnets used in slotless cylindrical linear actuators. The main purpose of the work is to evaluate the effects of that segmentation on the performance of the actuator and to present a general overview of the influence of parallel magnetization by varying the number of segments and comparing the results with ideal radially magnetized rings. The analysis is first performed by modelling mathematically the radial and circumferential components of magnetization for both radial and parallel magnetizations, followed by an analysis carried out by means of the 3D finite element method. Results obtained from the models are validated by measuring radial and tangential components of magnetic flux distribution in the air gap on a prototype which employs magnet rings with eight segments each with parallel magnetization. The axial force produced by the actuator was also measured and compared with the results obtained from numerical models. Although this analysis focused on a specific topology of cylindrical actuator, the observed effects on the topology could be extended to others in which surface-mounted permanent magnets are employed, including rotating electrical machines. |
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Eckert, Paulo RobertoGoltz, Evandro ClaitonFlores Filho, Aly Ferreira2023-11-25T03:28:12Z20141424-8220http://hdl.handle.net/10183/267694000930152This work analyses the effects of segmentation followed by parallel magnetization of ring-shaped NdFeB permanent magnets used in slotless cylindrical linear actuators. The main purpose of the work is to evaluate the effects of that segmentation on the performance of the actuator and to present a general overview of the influence of parallel magnetization by varying the number of segments and comparing the results with ideal radially magnetized rings. The analysis is first performed by modelling mathematically the radial and circumferential components of magnetization for both radial and parallel magnetizations, followed by an analysis carried out by means of the 3D finite element method. Results obtained from the models are validated by measuring radial and tangential components of magnetic flux distribution in the air gap on a prototype which employs magnet rings with eight segments each with parallel magnetization. The axial force produced by the actuator was also measured and compared with the results obtained from numerical models. Although this analysis focused on a specific topology of cylindrical actuator, the observed effects on the topology could be extended to others in which surface-mounted permanent magnets are employed, including rotating electrical machines.application/pdfengSensors [recurso eletrônico]. Basel. Vol.14, no. 7 (2014), p. 13070-13087Atuador linearMagnetizaçãoModelos matemáticosPermanent magnetsMagnetization patternParallel magnetizationRadial magnetizationLinear cylindrical electric machineSegmented ring-shaped magnetsInfluence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuatorsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000930152.pdf.txt000930152.pdf.txtExtracted Texttext/plain37957http://www.lume.ufrgs.br/bitstream/10183/267694/2/000930152.pdf.txtbdd0f1758a0bbb11d84249eeb01c2493MD52ORIGINAL000930152.pdfTexto completo (inglês)application/pdf1126484http://www.lume.ufrgs.br/bitstream/10183/267694/1/000930152.pdff4612bb5e0d4a29973be1e47f9931e79MD5110183/2676942023-12-06 04:25:44.199905oai:www.lume.ufrgs.br:10183/267694Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-06T06:25:44Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
title |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
spellingShingle |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators Eckert, Paulo Roberto Atuador linear Magnetização Modelos matemáticos Permanent magnets Magnetization pattern Parallel magnetization Radial magnetization Linear cylindrical electric machine Segmented ring-shaped magnets |
title_short |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
title_full |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
title_fullStr |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
title_full_unstemmed |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
title_sort |
Influence of segmentation of ring-shaped NdFeB magnets with parallel magnetization on cylindrical actuators |
author |
Eckert, Paulo Roberto |
author_facet |
Eckert, Paulo Roberto Goltz, Evandro Claiton Flores Filho, Aly Ferreira |
author_role |
author |
author2 |
Goltz, Evandro Claiton Flores Filho, Aly Ferreira |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Eckert, Paulo Roberto Goltz, Evandro Claiton Flores Filho, Aly Ferreira |
dc.subject.por.fl_str_mv |
Atuador linear Magnetização Modelos matemáticos |
topic |
Atuador linear Magnetização Modelos matemáticos Permanent magnets Magnetization pattern Parallel magnetization Radial magnetization Linear cylindrical electric machine Segmented ring-shaped magnets |
dc.subject.eng.fl_str_mv |
Permanent magnets Magnetization pattern Parallel magnetization Radial magnetization Linear cylindrical electric machine Segmented ring-shaped magnets |
description |
This work analyses the effects of segmentation followed by parallel magnetization of ring-shaped NdFeB permanent magnets used in slotless cylindrical linear actuators. The main purpose of the work is to evaluate the effects of that segmentation on the performance of the actuator and to present a general overview of the influence of parallel magnetization by varying the number of segments and comparing the results with ideal radially magnetized rings. The analysis is first performed by modelling mathematically the radial and circumferential components of magnetization for both radial and parallel magnetizations, followed by an analysis carried out by means of the 3D finite element method. Results obtained from the models are validated by measuring radial and tangential components of magnetic flux distribution in the air gap on a prototype which employs magnet rings with eight segments each with parallel magnetization. The axial force produced by the actuator was also measured and compared with the results obtained from numerical models. Although this analysis focused on a specific topology of cylindrical actuator, the observed effects on the topology could be extended to others in which surface-mounted permanent magnets are employed, including rotating electrical machines. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2023-11-25T03:28:12Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/267694 |
dc.identifier.issn.pt_BR.fl_str_mv |
1424-8220 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000930152 |
identifier_str_mv |
1424-8220 000930152 |
url |
http://hdl.handle.net/10183/267694 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Sensors [recurso eletrônico]. Basel. Vol.14, no. 7 (2014), p. 13070-13087 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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