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Article | REF: D3581 V2

Acoustic noise due to electromagnetic excitations in synchronous machines

Authors: Jean LE BESNERAIS, Pierre PELLEREY, Vincent LANFRANCHI, Michel HECQUET

Publication date: April 10, 2021

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7. Glossary

Bruit magnétique; magnetic noise

Airborne or solid acoustic radiation caused by electromagnetic excitations, not to be confused with electromagnetic noise in the field of electromagnetic compatibility.

Spatial order; wavenumber

Spatial frequency of a flux or vibration wave along the air gap. A spatial order of 2 corresponds to a 4-node wave, with 2 minima and 2 maxima.

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