Brushless DC motor ringing noise: A case study

Auteurs-es

  • Sylvain Nadeau Siemens Canada Ltd, Adelaide, Australia

Mots-clés :

Acoustic noise, Magnets, Rotors (windings), Viscoelasticity, Brushless direct current motors

Résumé

The rotor's mode in a brushless DC motor at around 1600 Hz resonates at certain a speed due to various electromagnetic forces. The addition of a viscoelastic material between part of the magnets and the rotor increases the mode's damping and reduces the ringing noise by more than 10 db(A). This provides an efficient way of reducing the noise without making changes to the motor.

Fichiers supplémentaires

Publié-e

2000-09-01

Comment citer

1.
Nadeau S. Brushless DC motor ringing noise: A case study. Canadian Acoustics [Internet]. 1 sept. 2000 [cité 31 août 2024];28(3):40-1. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1280

Numéro

Vol. 28 No. 3 (2000)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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