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

Figure 5

Convention for tensional forces, bending moments, and torsional moments between bottom facesheet and (a) -wise and (b) -wise stiffeners.

(a)

(b)