Composite damping soundproof structure of ship compartment bulkhead

A vibration damping and cabin technology, applied in the direction of living cabins, etc., can solve the problems of low construction efficiency, long construction period, poor fire resistance inside the cabin, etc., and achieve the effect of improving construction efficiency, improving fire resistance and shortening manufacturing time.

Active Publication Date: 2013-09-04
AVIC WEIHAI SHIPYARD
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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 s...

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  • Composite damping soundproof structure of ship compartment bulkhead
  • Composite damping soundproof structure of ship compartment bulkhead
  • Composite damping soundproof structure of ship compartment bulkhead

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specific Embodiment

[0033] The design parameters of composite vibration and sound insulation structures for ship cabin enclosures should meet the requirements of structural strength and pressure stability. The distance between the outer panel 1 and the inner panel 6 is 30-80mm. The distance between the internal ribs 3 is 0.4-1.2 times of the distance between the ribs of the ship. The smaller the distance between the internal ribs 3 is, the more favorable it is to improve the pressure bearing stability.

[0034] The anti-vibration mass 4 is designed as a hollow anti-vibration mass as far as possible, and the section is "H" shape, which can reduce the weight of the material. The hollow anti-vibration mass 4 should increase its cross-sectional height as much as possible under the condition of a certain weight, and the width is from the outer The spacing between the layer panel 2 and the inner panel 6 is determined to achieve the best noise reduction effect.

[0035] The material selection of the da...

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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...

Claims

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Application Information

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IPC IPC(8): B63B29/02
Inventor 温华兵夏兆旺申华袁志飞方媛媛
Owner AVIC WEIHAI SHIPYARD
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