Vibration Suppression of Plates by Optimally Calibrated Piezoelectric Rl Shunt Damping

Johan Toftekær, Jan Høgsberg, Ayech Benjeddou, Steen Krenk

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Abstract

A calibration procedure for suppression of plate vibrations by means of piezoelectric RL shunt damping is developed, in which the spill-over from non-resonant vibration modes is included by a quasi-dynamic modal correction, taking both flexibility and inertia effects from the residual modes into account. The procedure includes the 2D behaviour of a shunted piezoelectric patch, represented in a finite element model with Kirchhoff plate kinematics. The calibration based on the plate model is compared to previous results for beams, illustrating the 2D effect of the patch and the influence from transverse contraction by the Poisson’s ratio. Finally, the ability to reproduce the desired level of attainable damping for a plate structure is demonstrated.
Original languageEnglish
Title of host publicationProceedings of the 8th ECCOMAS Thematic Conference on Smart Structures and Materials
EditorsA. Güemes, A. Benjeddou, J. Rodellar, J. Leng
Number of pages12
PublisherEuropean Community on Computational Methods in Applied Sciences
Publication date2017
Publication statusPublished - 2017
Event8th ECCOMAS Thematic Conference on Smart Structures and Materials - Madrid, Spain
Duration: 5 Jun 20178 Jun 2017

Conference

Conference8th ECCOMAS Thematic Conference on Smart Structures and Materials
CountrySpain
CityMadrid
Period05/06/201708/06/2017

Keywords

  • RL Shunts
  • Piezoelectric damping
  • Structural dynamics
  • Resonant calibration

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