Energy harvesting and inter-floor impact noise control using an optimally tuned hybrid damping system

Open Access

Table 2

Geometrical and material properties of the double plate-cavity system.

Acoustic cavities	Piezo-sandwich plates
a = 1 m	t_h = 5 mm
b = 1 m	t_p = 1 mm
h₁ = h₃ = 1 m	ρ_h = 2700 kgm⁻³
h₂ = 0.2 m	ρ_p = 7500 kgm⁻³
ρ₀ = 1.275 kgm⁻³	$Q_{11}^{h} = Q_{22}^{h} = 78.5 GPa$ ${Q}_{11}^{\mathrm{h}}={Q}_{22}^{\mathrm{h}}=78.5\enspace \mathrm{GPa}$
c₀ = 343 ms⁻¹	$Q_{12}^{h} = 25.9 GPa$ ${Q}_{12}^{\mathrm{h}}=25.9\enspace \mathrm{GPa}$
	$Q_{66}^{h} = 26.3 GPa$ ${Q}_{66}^{\mathrm{h}}=26.3\enspace \mathrm{GPa}$
EM damper	$Q_{11}^{p} = Q_{22}^{p} = 138.9 GPa$ ${Q}_{11}^{\mathrm{p}}={Q}_{22}^{\mathrm{p}}=138.9\enspace \mathrm{GPa}$
K_v = 150 Vsm⁻¹	$Q_{12}^{p} = 77.8 GPa$ ${Q}_{12}^{\mathrm{p}}=77.8\enspace \mathrm{GPa}$
K_f = 150 NA⁻¹	$Q_{66}^{p} = 30.6 GPa$ ${Q}_{66}^{\mathrm{p}}=30.6\enspace \mathrm{GPa}$
L_m = 0.01 H	e₃₁ = e₃₂ = −5.2 Cm⁻²
R_m = 20 kΩ	ξ₁₁ = ξ₂₂ = 6.75 nFm⁻¹
	ξ₃₃ = 5.83 nFm⁻¹

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.