RESONANCE SOUND ABSORBING SYSTEM Russian patent published in 2009 - IPC E04B1/82 

FIELD: construction.

SUBSTANCE: invention pertains to construction and is intended for noise control in housings, public, manufacturing facilities, mainly for better sound protection of enclosing structures. Resonance sound absorbing system contains bearing part and sound protecting part. Bearing part is formed by cables, fixed with feasibility of stretching by means of cable stretching force adapters, sound protecting part is arranged on the bearing part, can be secured thereon and includes, at least, one layer of sound - absorbing material. Sound protecting part is loosely arranged on the bearing part - with sound absorbing system set horizontally or with a slight inclination, or by fixation - with sound absorbing system set upright, or by fixation and pressing - with sound absorbing system set with significant inclination. Bearing part is made as a frameless independent construction of stainless steel cables in PVC wire tube passed through interacting therewith supporting hinged members arranged along the perimeter of the bearing part with adjustability of tension force at the beginning and at the and of each inlet and outlet cable. Technical result consists in creation of sound absorbing construction having a large number of degrees of freedom, ensuring discontinuous and consistent range of resonance frequencies.

EFFECT: creation of sound absorbing construction having a large number of degrees of freedom, ensuring discontinuous and consistent range of resonance frequencies.

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