Composite damping soundproof structure of ship compartment bulkhead

Abstract

The invention discloses a composite damping soundproof structure of a ship compartment bulkhead. The structure comprises outer panels, inner panels, a frame, rib boards, damping masses, damping blocks and stuffing. Damping masses connected with left and right frame bars of the frame are horizontally disposed on the larger-than-1 / 3-height part of the frame from bottom to top. The rib boards connected with the frame and the damping masses and distributed at equal intervals are vertically disposed in upper and lower frames of the frame, and a plurality of cavities are formed inside and filled with the stuffing, and at least one damping block is regularly disposed on at least one layer of panels of the outer and inner panels. The compartment bulkhead structure has the functions of damping and sound proofing, vibration noise of the inside of a ship compartment is reduced effectively, fireproofing capacity of the ship compartment bulkhead is improved evidently, modular manufacturing and building of ships is facilitated, manufacturing time of ship compartment equipment is shortened effectively, and building efficiency is improved. The composite damping soundproof structure of the ship compartment bulkhead has promising application prospect.

Description

technical field [0001] The invention relates to a vibration-reducing and noise-reducing structure, in particular to a composite vibration-proof and sound-proof structure for a surrounding wall of a ship cabin. Background technique [0002] Noise is one of the main harmful factors to the vitality of ships and the environment. The power machinery in the engine room is the main source of vibration and noise of the ship. When working, the vibration is transmitted to the foundation. On the one hand, it radiates outward through the hull, seriously affecting the concealment of the ship; on the other hand, it spreads to each cabin through the hull, generating vibration and noise inside the cabin , affecting the comfort of the crew. In recent years, with the development of the shipping industry, the tonnage, speed and power of the power plant have been continuously increased, making the cabin vibration and noise pollution more and more serious. The cabin vibration and noise directly...

AI Technical Summary

Problems solved by technology

[0004] During the construction of ship cabins, the traditional construction method is to first weld stiffeners on steel plates, then weld steel plates with reinforced structures to form cabin enclosures, and then carry out interior outfitting of ship cabins, laying sound-absorbing materials, damping The materials and the surface decoration layer are fixed. This construction method has a long construction period on the berth, low construction efficiency, and poor fire resistance inside the cabin.

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