publication . Article . Other literature type . 2015

Sound transmission through triple-panel structures lined with poroelastic materials

Liu, Y;
Open Access
  • Published: 01 Mar 2015 Journal: Journal of Sound and Vibration, volume 339, pages 376-395 (issn: 0022-460X, Copyright policy)
  • Publisher: Elsevier BV
  • Country: United Kingdom
Abstract
Abstract In this paper, previous theories on the prediction of sound transmission loss for a double-panel structure lined with poroelastic materials are extended to address the problem of a triple-panel structure. Six typical configurations are considered for a triple-panel structure based on the method of coupling the porous layers to the facing panels which determines critically the sound insulation performance of the system. The transfer matrix method is employed to solve the system by applying appropriate types of boundary conditions for these configurations. The transmission loss of the triple-panel structures in a diffuse sound field is calculated as a fun...
Subjects
free text keywords: Mechanical Engineering, Acoustics and Ultrasonics, Mechanics of Materials, Condensed Matter Physics, Transmission loss, Boundary value problem, Soundproofing, Air gap (plumbing), Acoustics, Poromechanics, Transfer-matrix method (optics), Sound transmission class, Coupling, Mathematics
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