Acoustic protection material and apparatus including such...

Details Acoustic protection material and apparatus including such... Acoustic protection material and apparatus including such...

E - Fixed Constructions

04

B

E04B 1/84 (2006.01) G10K 11/172 (2006.01)

Patent

CA 2067480

ABSTRACT OF THE DISCLOSURE Material for providing acoustic protection against a source of noise, the material comprising a substrate and resonators, wherein the resonators formed of the substrate are constituted by thread-like and/or surface extending elements whose structural characteristics (density, modulus of elasticity, shear modulus, damping factor, piezoelectric factor, etc. ...) and whose shape and/or size are selected to associate a predetermined resonant frequency with each resonator, and also to absorb the sound pressure energy from the noise source at the resonant frequency and dissipate it in the form of mechanical heat energy and/or electrical energy. The invention also relates to apparatus constituted by a wall including at least one layer of the above material.

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