Vibro-acoustic response of orthogonally stiffened panels: The effects of finite dimensions

Sound transmission loss of metamaterial-based thin plates with multiple subwavelength arrays of attached resonators

“…In the area of phononic crystals, PWE formulations are well developed for the study of wave propagation and transmission in two-dimensional (2D) and 3D periodic inhomogeneous medium with various types of periodic lattices [15,36,37]. On the other hand, PWE method is also known as the space-harmonics approach in the field of structural acoustics, where uniform plates with periodic supports or stiffeners are commonly considered [38][39][40][41][42][43]. Here, we extend the PWE method to treat the sound transmission problem of a locally resonant thin plate with 2D multiple periodic arrays of attached resonators.…”

Transmission loss of periodically stiffened laminate composite panels: Shear deformation and in-plane interaction effects

“…Guigou-Carter and Villot 21 applied this technique to study sound transmission through buildings partitions with stiffening in one direction. In the case of orthogonally stiffened panels, Legault et al 22 showed that the windowed ribbed panel transmission coefficient s f is given by…”

Wave spectral finite element model for the prediction of sound transmission loss and damping of sandwich panels

“…In light of the numerical studies presented, it can be concluded that when the flexural wavelength is small and not affected by the boundary conditions, the WSFEM model accurately reproduced the behavior of the finite simply supported sandwich structure. A spatial windowing technique can be used to improve the accuracy of the results at low frequencies [37,38]. It was observed that the model developed is quick and accurate.…”