LOW-NOISE SHIP CABIN Russian patent published in 2017 - IPC B63B29/02 B63B3/68 F16F15/04 

FIELD: transportation.

SUBSTANCE: cabin comprises a metal stamp-welded frame consisting of load-bearing profile structures, inside which the packages of noise, vibration and heat insulating elements are installed. Every said element includes the layers of vibration damping material on the bitumen base, a layer of a sound-absorbing material and a perforated decorative panel. An air gap is formed between the panel and said layer of porous sound absorbing material. The cabin frame is connected to the load-bearing ship structures by means of the top and the bottom suspensions. The sound-absorbing material is made in the form of a plate from mineral cotton on the basalt base, and is lined with an acoustically transparent material over its entire surface. A suspended acoustical ceiling consists of a rigid frame suspended to the ceiling. Inside the frame, the sound-absorbing material wrapped in the acoustically transparent material is placed. A perforated sheet is attached to the frame. Unitary sound absorbers of the spherical shape are additionally located under the suspended acoustical ceiling.

EFFECT: reducing the transmission of noise and vibrations.

3 dwg