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Influence of feedback on modal shapes and its consequences on broadband energy harvesting

Archive ouverte : Communication dans un congrès

Giraud-Audine, C | Giraud, Frédéric | Amberg, M

Edité par HAL CCSD ; IEEE

International audience. We study the effect of feedback on an energy harvester for broadband applications. Using modal analysis we show that it has an influence on modal shape as a side effect of the resonance shifting. We show that the piezoelectric coupling can thus be reduced. Experimental results are in agreement and also reveal that non-linear effects are promoted in some cases.

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