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Piezoelectric Modeling of Cantilever Energy Harvester

Piezoelectric Modeling of Cantilever Energy Harvester

Piezoelectric Modeling of Cantilever Energy Harvester

(OP)
Hello everyone. New to the forum here trying to get some help.

I'm working as a graduate assistant at Penn State researching energy harvesting utilizing single crystal piezoelectric materials. I need some help modeling the piezoelectric effects in ABAQUS. I have a fully-working and validated mechanical model, however, when I try to output the electric potential from a base-excited cantilever beam system, I am getting values much lower than experiment. Also, if I double the d31 parameter, my voltage drops, which should not occur. The voltage should increase.

So far I have the piezoelectric elements, the d31 and d33 properties, the permittivities, and a simplified isotropic elastic condition defined.

I would greatly appreciate it if anyone has any insight on how to obtain electric potential from a electromechanical model.

Thanks in advance!

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