Influence of rotor deformation on Maxwell stress distribution in permanent magnet synchronous machines (PMSM)

Thomas Poupon

doi:10.1016/j.jsv.2026.120029

Influence of rotor deformation on Maxwell stress distribution in permanent magnet synchronous machines (PMSM)

2026-07-29

0

PRE

AI

T

Thomas Poupon *

N

Nicolas Abdelnour

A

Arthur Givois

V

Vincent Lanfranchi

J

Jean-Daniel Chazot

T

Tahar Hamiti

DOI：10.1016/j.jsv.2026.120029

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Abstract

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• Analytical model of rotor flexural vibrations coupled with magnetic forces. • Influence of rotor deformation on unbalanced magnetic pull quantified. • Spatio-temporal modulation of Maxwell pressures caused by rotor dynamic eccentricity. • The electromechanical coupling exhibits greater sensitivity to mechanical design parameters than to magnetic ones.

Keywords:

Electromechanical coupling

Magnetic eccentricity

Unbalanced magnetic pull (UMP)

Rotor dynamics

Maxwell pressure

Subdomain method

PMSM

Influence of rotor deformation on Maxwell stress distribution in permanent magnet synchronous machines (PMSM)

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