Validation Experimentale de l'analyse des Sources de Bruit Cyclique au Moyen de la Technique de Fenetrage Temporel

Auteurs-es

  • Y. Champoux Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada
  • P. Truchon Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada
  • G. Bergeron Dept. de Genie Mecanique, Sherbrooke Univ., Que., Canada

Mots-clés :

acoustic noise, acoustic signal processing, spectral analysis, cyclical noise source analysis, temporal gating, acoustic signals, calibration system, rotating machines

Résumé

Cet article aborde la problématique de l'analyse temps/fréquence de signaux acoustiques non stationnaires et répétitifs. La technique de fenêtrage temporel ("Gating Technique") sera examinée au moyen d'un système de calibration spécialement développé à cette fin. Nous mettrons en évidence la présence d'un délai interne du système ainsi que son rôle crucial lors de l'analyse des résultats. L'importance de la variabilité de la vitesse de révolution des machines tournantes sera examinée. Nous illustrerons ensuite comment cette technique peut être utilisée afin de prédire l'efficacité d'un traitement acoustique â la source.

Fichiers supplémentaires

Publié-e

1988-10-01

Comment citer

1.
Champoux Y, Truchon P, Bergeron G. Validation Experimentale de l’analyse des Sources de Bruit Cyclique au Moyen de la Technique de Fenetrage Temporel. Canadian Acoustics [Internet]. 1 oct. 1988 [cité 9 mai 2026];16(4):21-33. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/597

Numéro

Vol. 16 No. 4 (1988)

Rubrique

Articles techniques

Licence

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