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Modelization of layered sound absorbing materials with transfer matrices
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References
1987
Year
Materials ScienceAeroacousticsEngineeringPhysical AcousticSound AbsorptionApplied PhysicsMechanical EngineeringNormal IncidenceNoiseAcoustic MaterialTransport PhenomenaAcousticsHomogeneous LayersLayered MaterialsSound PropagationUltrasoundAcoustic MicroscopyLayered Sound
A method is presented that allows the prediction of the acoustical properties of layered porous or fibrous materials in normal incidence from simple measurements. Transfer matrices obtained from the Biot theory are used to describe homogeneous layers and screens constituting layered materials. The description of an absorbing material with the method is given.