Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension

S. C. Mukhopadhyay; J. Donaldson; S. Yamada; D. Kacprzak

doi:10.1109/INTMAG.2003.1230376

Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension

S. C. Mukhopadhyay, J. Donaldson, S. Yamada, D. Kacprzak

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

1 Citation (Scopus)

Abstract

In repulsive type magnetic bearing system usually the rotor is levitated by the repulsive forces between stator and rotor permanent magnets. The system is unstable in nature. The controlled electromagnet is used to keep the rotor in the desired position. The repulsive magnetic bearing system has the advantages of using a smaller number of electromagnets and simplified control scheme compared to active magnetic bearing system. The advantages of using magnetic bearing system compared to mechanical bearing in high speed motors are long life, frictionless and lubrication free operation, feasible operation at high speed etc. Two repulsive magnetic bearing systems using permanent magnets for the levitation were fabricated a few years back and their levitation and control performance were compared. Material characteristics and configuration of permanent magnets are the central component for this type of bearing system. Due to aging and/or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery non-uniform and this will affect the performance of the bearing system.

Original language	English
Title of host publication	2003 IEEE International Magnetics Conference (INTERMAG)
Editors	Russell Cowburn, Jim Daughton, Juan Fernandez-de-Castro, Diandra Leslie-Pelecky, Hiroaki Muraoka, Amanda K. Petford-Long, Stephen Russek, Manuel Vázquez, David Wachenschwanz, Roger Wood
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1
Number of pages	1
ISBN (Electronic)	0780376471, 9780780376472
DOIs	https://doi.org/10.1109/INTMAG.2003.1230376
Publication status	Published - Apr 2003
Externally published	Yes
Event	2003 IEEE International Magnetics Conference, Intermag - 2003 - Boston, United States Duration: 30 Mar 2003 → 3 Apr 2003

Other

Other	2003 IEEE International Magnetics Conference, Intermag - 2003
Country/Territory	United States
City	Boston
Period	30/03/03 → 3/04/03

Keywords

Control systems
Electromagnets
Fabrication
Magnetic levitation
Magnetic materials
Mechanical bearings
Permanent magnet motors
Permanent magnets
Rotors
Stators

Access to Document

10.1109/INTMAG.2003.1230376

Cite this

Mukhopadhyay, S. C., Donaldson, J., Yamada, S., & Kacprzak, D. (2003). Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension. In R. Cowburn, J. Daughton, J. Fernandez-de-Castro, D. Leslie-Pelecky, H. Muraoka, A. K. Petford-Long, S. Russek, M. Vázquez, D. Wachenschwanz, & R. Wood (Eds.), 2003 IEEE International Magnetics Conference (INTERMAG) (pp. 1). Article 1230376 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/INTMAG.2003.1230376

Mukhopadhyay, S. C. ; Donaldson, J. ; Yamada, S. et al. / Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension. 2003 IEEE International Magnetics Conference (INTERMAG). editor / Russell Cowburn ; Jim Daughton ; Juan Fernandez-de-Castro ; Diandra Leslie-Pelecky ; Hiroaki Muraoka ; Amanda K. Petford-Long ; Stephen Russek ; Manuel Vázquez ; David Wachenschwanz ; Roger Wood. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2003. pp. 1

@inproceedings{3bc3fddf80d9480fb734a95dda08d397,

title = "Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension",

abstract = "In repulsive type magnetic bearing system usually the rotor is levitated by the repulsive forces between stator and rotor permanent magnets. The system is unstable in nature. The controlled electromagnet is used to keep the rotor in the desired position. The repulsive magnetic bearing system has the advantages of using a smaller number of electromagnets and simplified control scheme compared to active magnetic bearing system. The advantages of using magnetic bearing system compared to mechanical bearing in high speed motors are long life, frictionless and lubrication free operation, feasible operation at high speed etc. Two repulsive magnetic bearing systems using permanent magnets for the levitation were fabricated a few years back and their levitation and control performance were compared. Material characteristics and configuration of permanent magnets are the central component for this type of bearing system. Due to aging and/or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery non-uniform and this will affect the performance of the bearing system.",

keywords = "Control systems, Electromagnets, Fabrication, Magnetic levitation, Magnetic materials, Mechanical bearings, Permanent magnet motors, Permanent magnets, Rotors, Stators",

author = "Mukhopadhyay, {S. C.} and J. Donaldson and S. Yamada and D. Kacprzak",

year = "2003",

month = apr,

doi = "10.1109/INTMAG.2003.1230376",

language = "English",

pages = "1",

editor = "Russell Cowburn and Jim Daughton and Juan Fernandez-de-Castro and Diandra Leslie-Pelecky and Hiroaki Muraoka and Petford-Long, {Amanda K.} and Stephen Russek and Manuel V{\'a}zquez and David Wachenschwanz and Roger Wood",

booktitle = "2003 IEEE International Magnetics Conference (INTERMAG)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2003 IEEE International Magnetics Conference, Intermag - 2003 ; Conference date: 30-03-2003 Through 03-04-2003",

}

Mukhopadhyay, SC, Donaldson, J, Yamada, S & Kacprzak, D 2003, Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension. in R Cowburn, J Daughton, J Fernandez-de-Castro, D Leslie-Pelecky, H Muraoka, AK Petford-Long, S Russek, M Vázquez, D Wachenschwanz & R Wood (eds), 2003 IEEE International Magnetics Conference (INTERMAG)., 1230376, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1, 2003 IEEE International Magnetics Conference, Intermag - 2003, Boston, Massachusetts, United States, 30/03/03. https://doi.org/10.1109/INTMAG.2003.1230376

Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension. / Mukhopadhyay, S. C.; Donaldson, J.; Yamada, S. et al.
2003 IEEE International Magnetics Conference (INTERMAG). ed. / Russell Cowburn; Jim Daughton; Juan Fernandez-de-Castro; Diandra Leslie-Pelecky; Hiroaki Muraoka; Amanda K. Petford-Long; Stephen Russek; Manuel Vázquez; David Wachenschwanz; Roger Wood. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2003. p. 1 1230376.

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

TY - GEN

T1 - Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension

AU - Mukhopadhyay, S. C.

AU - Donaldson, J.

AU - Yamada, S.

AU - Kacprzak, D.

PY - 2003/4

Y1 - 2003/4

N2 - In repulsive type magnetic bearing system usually the rotor is levitated by the repulsive forces between stator and rotor permanent magnets. The system is unstable in nature. The controlled electromagnet is used to keep the rotor in the desired position. The repulsive magnetic bearing system has the advantages of using a smaller number of electromagnets and simplified control scheme compared to active magnetic bearing system. The advantages of using magnetic bearing system compared to mechanical bearing in high speed motors are long life, frictionless and lubrication free operation, feasible operation at high speed etc. Two repulsive magnetic bearing systems using permanent magnets for the levitation were fabricated a few years back and their levitation and control performance were compared. Material characteristics and configuration of permanent magnets are the central component for this type of bearing system. Due to aging and/or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery non-uniform and this will affect the performance of the bearing system.

AB - In repulsive type magnetic bearing system usually the rotor is levitated by the repulsive forces between stator and rotor permanent magnets. The system is unstable in nature. The controlled electromagnet is used to keep the rotor in the desired position. The repulsive magnetic bearing system has the advantages of using a smaller number of electromagnets and simplified control scheme compared to active magnetic bearing system. The advantages of using magnetic bearing system compared to mechanical bearing in high speed motors are long life, frictionless and lubrication free operation, feasible operation at high speed etc. Two repulsive magnetic bearing systems using permanent magnets for the levitation were fabricated a few years back and their levitation and control performance were compared. Material characteristics and configuration of permanent magnets are the central component for this type of bearing system. Due to aging and/or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery non-uniform and this will affect the performance of the bearing system.

KW - Control systems

KW - Electromagnets

KW - Fabrication

KW - Magnetic levitation

KW - Magnetic materials

KW - Mechanical bearings

KW - Permanent magnet motors

KW - Permanent magnets

KW - Rotors

KW - Stators

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DO - 10.1109/INTMAG.2003.1230376

M3 - Conference proceeding contribution

AN - SCOPUS:84949495513

SP - 1

BT - 2003 IEEE International Magnetics Conference (INTERMAG)

A2 - Cowburn, Russell

A2 - Daughton, Jim

A2 - Fernandez-de-Castro, Juan

A2 - Leslie-Pelecky, Diandra

A2 - Muraoka, Hiroaki

A2 - Petford-Long, Amanda K.

A2 - Russek, Stephen

A2 - Vázquez, Manuel

A2 - Wachenschwanz, David

A2 - Wood, Roger

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 2003 IEEE International Magnetics Conference, Intermag - 2003

Y2 - 30 March 2003 through 3 April 2003

ER -

Mukhopadhyay SC, Donaldson J, Yamada S, Kacprzak D. Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension. In Cowburn R, Daughton J, Fernandez-de-Castro J, Leslie-Pelecky D, Muraoka H, Petford-Long AK, Russek S, Vázquez M, Wachenschwanz D, Wood R, editors, 2003 IEEE International Magnetics Conference (INTERMAG). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2003. p. 1. 1230376 doi: 10.1109/INTMAG.2003.1230376

Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension

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