Low-Frequency Broadband Sound Transmission Loss of Infinite Orthogonally Rib-Stiffened Sandwich Structure with Periodic Subwavelength Arrays of Shunted Piezoelectric Patches

Table 1

Properties of one periodic element.

(kg/m^3)		(Gpa)	(mm)	(mm)
2700	0.33	70	40	2
(kg/m^3)	(mm)	(mm)	/(m^2/N)	/(m^2/N)
7500	30	1	16.5 × 10^−12	−4.78 × 10^−12
/(C/N)	/(F/m)	(Hz)	(F)	(Gpa)
−2.74 × 10^−10	3.01 × 10^−8			27
(kg/m^3)	(Gpa)	(mm)	(mm)	(°)	(°)
2700	70	200	1	30	30