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Monday, July 8 • 11:20 - 11:40
A TRANSFER MATRIX APPROACH FOR MODELING PERIODIC ACOUSTIC METAMATERIAL

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A transfer matrix approach that combines finite element calculation to characterize homogeneous and non-homogeneous acoustic absorbing materials with in-plane periodicity is proposed. The approach is similar to the three-microphone two-load method and based on plane wave propagation assumption in a waveguide like a stationary wave tube. This approach allows one to model multilayers acoustic metamaterials that are non-homogeneous and periodic where each layer is represented by an equivalent transfer matrix. The results of the normal incidence sound transmission loss predicted by the present method are compared with finite element results. Good agreements are obtained.

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avatar for Raymond Panneton

Raymond Panneton

Ing., Ph.D., GAUS, Université de Sherbrooke
Raymond Panneton is a professor-researcher in the Department of Mechanical Engineering at the Université de Sherbrooke since 1998. His research program focuses on the modeling, characterization and optimization of porous acoustic media. More specifically, he explores the relationships... Read More →


Monday July 8, 2019 11:20 - 11:40 EDT
St-Laurent 5