Sensitivity analysis of beams controlled by shunted piezoelectric transducers

Gaël Matten (1) , Manuel Collet (2) , Scott Cogan (1) , Emeline Sadoulet-Reboul (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

This paper aims at quantifying the robustness of a cantilever beam behavior, controlled with a shunted piezoelectric patch, with respect to uncertainties in the system parameters. Vibration control based on piezoelectric transducers has proven to be particularly efficient, in particular the use of thin piezoelectric patches shunted by negative capacitance circuits allowing broadband applications. However, the optimal tuning of the control can lead to instability and the influence of a variation in the physical properties or in geometry is not well known. Through multiphysical finite element simulations, a sensitivity analysis of the beam coupled with a piezoelectric transducer is performed. The effects of a variability in the material characteristics, the geometry of the system and the parameters of the shunt circuit on the stability and the damping performances are investigated.

Domaines: Mécanique [physics]

Gaël Matten, Manuel Collet, Scott Cogan, Emeline Sadoulet-Reboul. Sensitivity analysis of beams controlled by shunted piezoelectric transducers. International Modal Analysis Conference, Feb 2014, Orlando, United States. pp.243-248, ⟨10.1007/978-3-319-04552-8_24⟩. ⟨hal-02300573⟩