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Nonlinear damping of a plate using Faraday instability of a fluid film

Génevaux, J. M. et Dauchez, N. et Doutres, O.. 2009. « Nonlinear damping of a plate using Faraday instability of a fluid film ». Journal of Sound and Vibration, vol. 326, nº 1–2. p. 150-160.
Compte des citations dans Scopus : 1.

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Résumé

Damping using an instability of a fluid film in contact with a vibrating structure is investigated. Waves induced in the fluid film is the source of the added damping. A model based on the theory of Faraday instability is applied to a clamped circular plate covered by a fluid film. It is shown that this original technique can provide a significant damping. It depends of the viscosity of the fluid, the local amplitude of the vibration, the threshold of the instability and the amplitude of the induced waves. The non linear relation between the amplitude of the waves and the plate acceleration induces a non linear damping. Theoretical and experimental results are compared. The model slightly overestimates the added damping. Comparison with viscoelastic and porous material treatments shows that damping are of the same order.

Type de document: Article publié dans une revue, révisé par les pairs
Professeur:
Professeur
Doutres, Olivier
Affiliation: Autres
Date de dépôt: 28 oct. 2014 15:17
Dernière modification: 03 août 2017 14:54
URI: http://espace2.etsmtl.ca/id/eprint/8790

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