CN203497126U

CN203497126U - Sound-proof structure for ship cabin

Info

Publication number: CN203497126U
Application number: CN201320606952.9U
Authority: CN
Inventors: 苏中洋
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2013-09-29
Filing date: 2013-09-29
Publication date: 2014-03-26
Anticipated expiration: 2023-09-29

Abstract

The utility model relates to a sound-proof structure for a ship cabin. The sound-proof structure is arranged on the inner wall of the ship cabin. The sound-proof structure comprises an adhesive layer, a foamed aluminum layer and a damping coating layer, wherein the adhesive layer, the foamed aluminum layer and the damping coating layer are sequentially laid. The sound-proof structure for the ship cabin has the advantages of reducing noise, insulating heat, preventing fire and being capable of bearing the load.

Description

Ship's space acoustic construction

Technical field

The utility model relates to a kind of hull structure, is specifically related to a kind of ship's space acoustic construction.

Background technology

In modern ships, great majority are usingd diesel engine as engine installation, and the noise of diesel engine is all large compared with other engine installation.According to statistics, the noise in diesel engine cabin is mostly more than 100dB (A), and some famous classification societies have formulated strict noise margin standard in the world: crewman's accommodation is no more than 50dB (A).

One of source of superstructure cabin noise is the noise by the generation of vibration of structure.In order to make operator's compartment have good sight line, generally all will increase the height of superstructure, thereby just make the natural frequency of superstructure reduce, so the possibility that resonance occurs in superstructure greatly increases, thereby the direct radiation of the noise being caused by vibration is in cabin.In the upper deck that approaches most cabin, be to control the main region of noise, by analysis, the cabin of upper deck, especially the level of noise of accommodation generally all can exceed standard, therefore falling sound measure is the main way that solves accommodation noise abatement, so just must take active and effective measure to carry out noise control.

Summary of the invention

The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provide a kind of noise-reducing, thermal insulation, anti-fighting can load-bearing ship's space acoustic construction.

The utility model solves the technical scheme that its technical matters adopts: a kind of ship's space acoustic construction, be located on the inwall of ship's space, and comprise the adhesive-layer, foamed aluminium layer and the damping coating layer that are laid in successively on described inwall.

As preferably, outside the roof of described ship's space and the damping coating layer on sidewall, be also laid with fire prevention acoustic absorption nonwoven fabrics layer.

As preferably, outside the damping coating layer on the diapire of described ship's space, be also laid with rubber layer.

As preferably, the thickness of described adhesive-layer is 1mm, and the bulk compressibility of described foamed aluminium layer is 40%, and thickness is 4mm; The thickness of described damping coating layer is 3mm.

As preferably, the thickness of described nonwoven layer is 0.6mm.

As preferably, the thickness of described rubber layer is 2mm.

A kind of ship's space acoustic construction of the present utility model has adopted multi-layer compound structure, has following beneficial effect:

1, be close to the adhesive-layer that inwall lays and there is the features such as interior friction drag is large, visoelasticity, high damping material, form damping layer, utilize the internal loss principle of material, when effect of vibration is being coated with on the metal plate of damping layer, also vibration thereupon of damping layer when metal plate is done bending vibrattion, when an one curved folding makes damping layer and compressed, time and be stretched, the relative displacement of damping layer interior molecules, the loss part vibrational energy due to friction, weaken the bending vibrattion of metal plate, thereby reduced the noise radiation of metal sheet.

2, the foamed aluminium that covers again at adhesive-layer forms restriction damping layer, and foamed aluminium is also a kind of good lightweight damping material, has higher intensity, also has sound absorption, fire prevention, damping, the good characteristic such as nontoxic simultaneously.By adhesive-layer and the such damping layer of foamed aluminium, be attached to surface of steel plate, reduced and can arrive the acoustic energy in the cabin that is separated by, and then reduced the noise in room.

3, in damping coating layer, do not contain wire net, be applicable to complex-curved construction, play the effect of elastic floating, complement each other with being combined with of damping layer, a kind of soundproof effect of the best is provided.

4, the nonwoven layer that is laid in roof and sidewall surfaces is attached to cabin interior, again attenuating noise; The thick rubber floor covering that bottom is laid has also met the requirement that can bear larger load.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is the C-C cutaway view of Fig. 1.

In figure: 1. adhesive-layer, 2. foamed aluminium layer, 3. damping coating layer, 4. nonwoven layer, 5. rubber layer.

The specific embodiment

By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.

Most preferred embodiment of the present utility model as shown in Figures 1 to 3, the ship's space acoustic construction of the present embodiment, be located on the inwall of ship's space, comprise the adhesive-layer 1, foamed aluminium layer 2 and the damping coating layer 3 that lay successively, outside the roof of ship's space and the damping coating layer on sidewall 3, be also laid with fire prevention acoustic absorption nonwoven fabrics layer 4.

As shown in Figure 4, outside the damping coating layer on the diapire of ship's space, be also laid with rubber layer 5.

During use, 1) adhesive-layer of bottom is selected " adhesive elastic compound " PU-RED that 1mm is thick, red special rubber namely, be laid with above bulk compressibility 40%, thick be the foamed aluminium of 4mm.This structure is that the acoustic efficiency of a high-quality is provided with minimum height, and it can be attached to the noise transfer between isolated cabin on steel plate.2) damping coating layer that upper strata is laid is the commercially available T54/T60 damping paint that 3mm is thick, i.e. solvent-free double-component polyurethane coating, and it has good noise-and-vibration-reduction effect, can reduce due to the noise impacting and structural vibration causes by actv..3) due to top, bulkhead, bottom bearing strength difference, according to selecting, can adhere to the SOUNDLOS fire prevention acoustic absorption nonwoven fabrics that a layer thickness is 0.6mm at cabin sidewall, roof, when improving aesthetics, also the sound of most of frequency is had to good noise reduction capability; The thick rubber floor covering of 2mm is laid in bottom, can improve the loadintensity of body insulation, also can improve the comfort level on floor.

The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification sheets, must determine its technical scope according to claim scope.

Claims

1. a ship's space acoustic construction, is located on the inwall of ship's space, it is characterized in that: comprise the adhesive-layer, foamed aluminium layer and the damping coating layer that are laid in successively on described inwall.

2. ship's space acoustic construction according to claim 1, is characterized in that: outside the roof of described ship's space and the damping coating layer on sidewall, be also laid with fire prevention acoustic absorption nonwoven fabrics layer.

3. ship's space acoustic construction according to claim 1, is characterized in that: outside the damping coating layer on the diapire of described ship's space, be also laid with rubber layer.

4. ship's space acoustic construction according to claim 1, is characterized in that: the thickness of described adhesive-layer is 1mm, and the bulk compressibility of described foamed aluminium layer is 40%, and thickness is 4mm; The thickness of described damping coating layer is 3mm.

5. ship's space acoustic construction according to claim 2, is characterized in that: the thickness of described nonwoven layer is 0.6mm.

6. ship's space acoustic construction according to claim 3, is characterized in that: the thickness of described rubber layer is 2mm.