Analysis of a barrel-stave flextensional transducer using MAVART and ATILA finite element codes

Auteurs-es

  • Richard A.G. Fleming DRDC Atlantic, PO Box 1012, Dartmouth, NS B2Y 3Z7, Canada
  • Mark Kwiecinski DRDC Atlantic, PO Box 1012, Dartmouth, NS B2Y 3Z7, Canada
  • Dennis F. Jones DRDC Atlantic, PO Box 1012, Dartmouth, NS B2Y 3Z7, Canada

Mots-clés :

Acoustic transducers, Acoustics, Codes (standards), Codes (symbols), Computer systems, Frequency response, Laplace equation, Modal analysis, Photoacoustic effect, Radiation, Resonance, Transducers, Underwater acoustics, Acoustic communications, Acoustic radiations, Atlantic, calibration measurements, Coastal surveillance, Computer modelling, Defence Research and Development Canada (DRDC), Finite element (FE) code, Flexural resonance frequencies, High powers, model predictions, Omni directional radiation patterns, Outside diameter (OD), Sensor technologies, Transmitting voltage response

Résumé

Un petit transducteur flextensionnel à douves, conçu et mis à l’essai à Recherche et développement pour la défense Canada - Atlantique (RDDC Atlantique), est une source possible pour des applications de surveillance côtière sous-marine et de communications acoustiques. Ce transducteur de grande puissance (supérieure à 190 dB, rapportée à 1 DPa à 1 m) a un diamètre extérieur de 5,7 cm, une longueur de 12,7 cm et une masse de 1,1 kg. La fréquence fondamentale de résonance en flexion mesurée était de 1,8 kHz avec une réponse en tension d'émission de 118 dB, rapportée à 1 DPa/V à 1 m, et un diagramme de rayonnement omnidirectionnel. Deux modèles informatisés ont été élaborés pour ce transducteur à l’aide des codes à éléments finis MAVART™ (modèle pour analyser les vibrations et le rayonnement acoustique de transducteurs) et ATILA (analyse de transducteurs par intégration d'équations de Laplace). Des comparaisons sont effectuées entre les mesures d’étalonnage et les prédictions à partir des modèles.

Fichiers supplémentaires

Publié-e

2008-06-01

Comment citer

1.
Fleming RA, Kwiecinski M, Jones DF. Analysis of a barrel-stave flextensional transducer using MAVART and ATILA finite element codes. Canadian Acoustics [Internet]. 1 juin 2008 [cité 4 mai 2026];36(2):43-7. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2013

Numéro

Vol. 36 No. 2 (2008)

Rubrique

Articles techniques

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