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

Table 1

Parameters of the four considered configurations.

Parameter	Description	System 1	System 2	System 3	System 4
	Oscillating mass (kg)	2.968	2.953	0.02477	0.02378
	Diameter (m)	0.05	0.05	0.01	0.01
	Damping ratio	0.0013	0.0013	0.0013	0.0013
	Natural frequency (rad/s)	19.79	19.79	98.96	98.96
	Electromechanical coupling coefficient	0.002537
	Capacitance (F)
	Mass ratio	1.535	1.507	1.629	1.523