Modeling of Piezoelectric Energy Harvesting from Freely Oscillating Cylinders in Water Flow

Figure 4

Variations of the imaginary parts and the real parts of the electromechanical model with the load resistance for (a) System 1, (b) System 2, (c) System 3, and (d) System 4 in SP&PS mode.

(a)

(b)

(c)

(d)