A Simplified Current Blocking Piezoelectric Shunt Circuit for Multimodal Vibration Mitigation
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.
KeywordsPiezoelectric 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).