The invention relates to a method for lowering
noise of ship compartments. The method for lowering the
noise of the ship compartments is characterized in that in a ship
design stage, the following steps are adopted, specifically, (1) an
accommodation and a
flue are separately arranged, and the compartments with high
noise requirement are arranged by being far away from a noise source; (2) sound absorption materials are laid in the compartments, and the sound absorption treatment is performed by arranging sound absorption structures and
coating the interior of the compartments with environment-friendly noise-reduction materials; (3) the sound insulation treatment is conducted, specifically, lining plates and independent wall plates with large noise-reduction values are adopted, ceilings are adopted so that vertical transmission of the noise can be
cut off, and sound insulation windows and sound insulation
doors are selected; and (4) the step of a
vibration attenuation and
vibration isolation measure is performed, specifically, decks adopt
vibration attenuation and
vibration isolation structures, the ceilings adopt high-damping materials with elastic connection and high
internal friction force on steel plate. According to the method for lowering the noise of the ship compartments, as the noise-
reduction treatment is already performed on the compartments in the
design stage, a large quantity of
workload of rectification when the noise exceeds standards after ship construction is completed is avoided, and the requirements of IMO A.468(XII) and MSC.337(91) are met.