Device for attenuating sound waves in a sound source housing

Abstract

A device for damping sound waves in a sound source housing, comprising at least one sound damping element, is characterized in that the sound wave damping elements (1) are located in the sound source housing at the locations where a standing wave is generated. Each sound wave damping element (1) is a solid block of material having at least one flat surface (2) in which there is a single opening (3) leading to a single main channel (4), hollowed out in the sound wave damping element (1) and running in a straight line, perpendicular to the flat surface (2) of the sound wave damping element (1). The opening (3) is the only opening in the outer surface of the sound wave damping element (1) leading to the main channel (4).At the same time, the main channel (4) has in its interior, on its inner side wall, at least one resonator (6) opening (5), wherein each resonator (6) opening (5) leads to a single resonator (6) in the form of a channel hollowed out in the sound wave damping element (1). The method of manufacturing a sound wave damping device in the sound source housing, using the three-dimensional printing method, consists in identifying the resonance frequencies in the housing of the sound source requiring damping and indicating the locations of standing wave generation, and then designating a dedicated sound wave damping element (1) for each location of standing wave generation.

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