A Two-Step Hybrid Approach for Modeling the Nonlinear Dynamic Response of Piezoelectric Energy Harvesters

Figure 19

FFT of 3.7 and 10.5 base acceleration (a-b); FFT of the measured output voltages (c-d); comparison among experimental (solid blue lines) and numerical (dashed red lines) output voltages for 3.7 and 10.5 base acceleration (e-f).

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