Study on the Influence Factors on Harvesting Capacity of a Piezoelectric Vibration Energy Harvesting System Covered on Curved Beam with Acoustic Black Hole

Table 1

Geometry and material parameters of ABH curved beam and piezoelectric layer.

Geometry parameters of ABH beam	Material parameters of ABH beam	Geometry parameters of PZT	Material parameters of PZT
ε = 0.003	ρ = 7800 kg/m^3	h2 = 0.005 m	C^E = 1.27205 × 10^11 Pa
hu = 0.04 m	E = 2.1 × 10^11 Pa	a2 = π/6	e = −6.62281 C/m^2
h0 = 0.003 m	μ = 0.3		ε^S = 1.2693 × 10^−8 F/m
R = 0.5 m
a1 = π/12
a0 = π/3
P1, P2, Q1, Q2