Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester

Figure 31

Relation of the power-frequency of different external loads is given: (a) external loads are ,, and , respectively; (b) external loads are , , and , respectively; (c) external loads are , , and , respectively; (d) external loads are , , and , respectively.

(a)

(b)

(c)

(d)