Comparison of passive damping treatments based on constrained viscoelastic layers and multi-resonant piezoelectric networks

Boris Lossouarn (1) , Lucie Rouleau (1) , Robin Darleux (1) , Jean-François Deü (1)

1 LMSSC - Laboratoire de Mécanique des Structures et des Systèmes Couplés

This work aims at comparing the damping performances of two passive damping treatments based on piezoelectric or viscoelastic patches. The motivation for such a comparison stems from the fact that the two damping techniques have been developed fairly independently, and are rarely compared. First, the dynamic response of a simply-supported metallic plate is measured experimentally after being equipped with constrained viscoelastic patches or piezoelectric patches connected to an electrical network. In order to extend the comparison, a numerical model of the structure is set up and validated to evaluate the damping performances of both passive treatments under different configurations (for instance equal-mass and equal-thickness configurations). Finally, with regard to these experimental and numerical results, the advantages and the limitations in using viscoelastic or piezoelectric treatments are discussed.

Domaines: Mécanique des structures [physics.class-ph]; Vibrations [physics.class-ph]; Energie électrique

Boris Lossouarn, Lucie Rouleau, Robin Darleux, Jean-François Deü. Comparison of passive damping treatments based on constrained viscoelastic layers and multi-resonant piezoelectric networks. Journal of Structural Dynamics, 2021, ⟨10.25518/2684-6500.63⟩. ⟨hal-03445574⟩