[ICEM] Effect of magnetic wedges on electromagnetically-induced acoustic noise and vibrations of electrical machines

Authors Jean Le Besnerais ; Quentin Souron
Status Published in: Electrical Machines (ICEM), 2016 XXII International Conference
Date 4-7 Sept. 2016
Keywords Magnetic wedges, Acoustic noise, Vibration, Electromagnetic forces, Electrical machines

Abstract

The articles studies the effect of stator magnetic wedges on the electromagnetically-induced acoustic noise and vibration of a squirrel cage induction machine. Firstly, a review of previous studies analysing the effects of magnetic wedges both on electromagnetics and vibro-acoustic domain is done. Then, simulations are performed with MANATEE software to quantify the reduction of noise and vibrations due to Maxwell forces with the use of magnetic wedges in a squirrel cage induction machine presenting a strong resonance due to slotting effect. A sensitivity study is carried on the magnetic permeability of the wedge and it is shown that the maximum sound pressure level and vibration reduction only reaches 2 dB with a relative magnetic wedge permeability of 20.

Preprint and full paper

The full paper can be found on IEEE.

The preprint is available here:

Effect of magnetic wedges on electromagnetically-induced acoustic noise and vibrations of electrical machines

The poster is available here:

Poster of "Effect of magnetic wedges on electromagnetically-excited acoustic noise and vibrations of electrical machines", ICEM 2016

Notes

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