SHIP CABIN SINGLE-PIECE SOUND ABSORBER Russian patent published in 2018 - IPC E04B1/84 

FIELD: acoustics.

SUBSTANCE: invention relates to the transport machine building and can be used as the single-piece sound absorber in cabins of river and sea ships, and other water transport facilities. This is achieved by the fact, that in the ship's cabin the single-piece sound absorber is made in the form of at least trihedral pyramidal structure consisting of inclined edges connected with the top formation by fastening elements, and as the triangular pyramid base a ship bulkhead is used, to which perforated inclined edges are attached by means of fastening elements and elastic ties through the vibration damping elements, at that, the elastic ties are located inside the frame in the plane perpendicular to the ship's bulkhead, wherein the ties one end is attached to the fixed to the bulkhead hooks, and the other is to the fastening elements, bracing the inclined edges, from the inside to which sound-absorbing non-combustible material is attached, wrapped with acoustically transparent material, at that, inside the frame between the of sound-absorbing material layers there is an air cavity, and between the perforated inclined edges and sound-absorbing non-combustible material there is an air gap, which serves to suppress noise in the low-frequency range.

EFFECT: increase in the cabin comfort and improvement of the operator working conditions.

1 cl, 3 dwg