A Simplified Current Blocking Piezoelectric Shunt Circuit for Multimodal Vibration Mitigation

  • Ghislain RazeEmail author
  • Andy Jadoul
  • Valery Broun
  • Gaetan Kerschen
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


This paper presents a novel arrangement of a current blocking shunt circuit for the mitigation of multiple structural resonances. The number of required electrical components is reduced compared to the previous versions of this circuit proposed in the literature. This paper also proposes a tuning methodology for the electrical parameters of this circuit based on the evaluation of the electromechanical coupling between the electrical circuit and the structure. Effective mitigation performance can be expected with little knowledge of the host structure. A comparison with the solutions in the literature demonstrates the efficiency of the proposed approach.


Piezoelectric absorber Multimodal damping Passive control Two-port network 



The authors G. Raze and G. Kerschen would like to acknowledge the financial support of the SPW (WALInnov grant 1610122).


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Copyright information

© Society for Experimental Mechanics, Inc. 2020

Authors and Affiliations

  • Ghislain Raze
    • 1
    Email author
  • Andy Jadoul
    • 2
  • Valery Broun
    • 2
  • Gaetan Kerschen
    • 1
  1. 1.Department of Aerospace and Mechanical EngineeringUniversity of LiegeLiègeBelgium
  2. 2.Departement Ingenieur IndustrielHaute Ecole de la Province de LiegeLiègeBelgium

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