Effect of Magnetic Forces and Magnetostriction on the Stator Vibrations of a Bearingless Synchronous Reluctance Motor

Victor Mukherjee; Paavo Rasilo; Floran Martin; Anouar Belahcen

doi:10.1109/TMAG.2019.2894739

Effect of Magnetic Forces and Magnetostriction on the Stator Vibrations of a Bearingless Synchronous Reluctance Motor

Victor Mukherjee, Paavo Rasilo, Floran Martin, Anouar Belahcen

Research output: Contribution to journal › Article › Scientific › peer-review

7 Citations (Scopus)

Abstract

The stator vibrations of a bearingless synchronous reluctance motor are investigated with simulations. The influence of the Maxwell stress tensor and magnetostriction on the stator vibrations is studied at different operational conditions. An energy-based magnetomechanical model of iron core is implemented and the influence of the magnetostriction in the iron core on the stator vibrations is further investigated and compared with the case where the magnetostriction is not modeled. The objective of the research is to find out how the stator vibrations can be used to detect the off-center rotor position. The results show that a single frequency component is not able to assess this phenomenon but a combination of two components makes it possible.

Original language	English
Article number	8101804
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	55
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2019.2894739
Publication status	Published - 2019
MoE publication type	A1 Journal article-refereed

Keywords

Bearingless machine
eccentricity
magnetostriction
Maxwell stress
mechanical vibrations
synchronous reluctance motor

Access to Document

10.1109/TMAG.2019.2894739

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title = "Effect of Magnetic Forces and Magnetostriction on the Stator Vibrations of a Bearingless Synchronous Reluctance Motor",

abstract = "The stator vibrations of a bearingless synchronous reluctance motor are investigated with simulations. The influence of the Maxwell stress tensor and magnetostriction on the stator vibrations is studied at different operational conditions. An energy-based magnetomechanical model of iron core is implemented and the influence of the magnetostriction in the iron core on the stator vibrations is further investigated and compared with the case where the magnetostriction is not modeled. The objective of the research is to find out how the stator vibrations can be used to detect the off-center rotor position. The results show that a single frequency component is not able to assess this phenomenon but a combination of two components makes it possible.",

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AU - Mukherjee, Victor

AU - Rasilo, Paavo

AU - Martin, Floran

AU - Belahcen, Anouar

PY - 2019

Y1 - 2019

N2 - The stator vibrations of a bearingless synchronous reluctance motor are investigated with simulations. The influence of the Maxwell stress tensor and magnetostriction on the stator vibrations is studied at different operational conditions. An energy-based magnetomechanical model of iron core is implemented and the influence of the magnetostriction in the iron core on the stator vibrations is further investigated and compared with the case where the magnetostriction is not modeled. The objective of the research is to find out how the stator vibrations can be used to detect the off-center rotor position. The results show that a single frequency component is not able to assess this phenomenon but a combination of two components makes it possible.

AB - The stator vibrations of a bearingless synchronous reluctance motor are investigated with simulations. The influence of the Maxwell stress tensor and magnetostriction on the stator vibrations is studied at different operational conditions. An energy-based magnetomechanical model of iron core is implemented and the influence of the magnetostriction in the iron core on the stator vibrations is further investigated and compared with the case where the magnetostriction is not modeled. The objective of the research is to find out how the stator vibrations can be used to detect the off-center rotor position. The results show that a single frequency component is not able to assess this phenomenon but a combination of two components makes it possible.

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KW - eccentricity

KW - magnetostriction

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