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

Figure 3

First four modal shapes and modal frequencies of the considered piezoelectric device: (a) = 316 rad/sec, (b) = 1980 rad/sec, (c) = 5545 rad/sec, and (d) = 10866 rad/sec.

(a)

(b)

(c)

(d)