Ship cabin acoustic surface finishing

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed cabin comprises metal built-up carcass consisting of bearing section structures accommodating sound-and-vibration insulating elements. Every said element includes layers of antivibration material on bitumen substrate, layer of sound absorbing material and perforated decorative panel. Air gap is formed between panel and said layer of porous sound absorbing material. Cabin carcass is jointed with ship bearing structures via antiviration system consisting of top and bottom suspensions. top suspension consists of two rubber bumpers. Bottom suspension consists of two bumpers made up of helical or conical springs. Sound absorbing material represents a plate from mineral cotton on basalt base stock faced by sound-transmitting material over its entire surface. Piece noise absorber is made up of rigid carcass secured to cabin ceiling by hooks or cables to comprises elements with sound absorbing material wrapped by said sound-transmitting material and arranged in perforated surface.

EFFECT: better antinoise and antivibration properties.

2 cl, 4 dwg

 

The invention relates to transport machinery and can be used as cabins on the river, marine vessels and other water transport objects.

A known vehicle cab according to the patent of Russian Federation №2399548 (prototype), containing frame with bearing elements mounted thereon packages zvukoteploizoljatsii elements, each of which includes layers vibrationfree material for bituminous base and at least one layer of porous sound-absorbing material and a perforated cover plate, and between the panel and the layer of porous sound-absorbing material is formed an air gap.

The disadvantages of this cab are poor damping of structural noise, the inability to suppress reverberation, the poor quality of the cabin interior and poor insulation.

The technical result is greater comfort in the cabin and better working conditions for the operator.

This is achieved by the fact that the ship's cabin containing a metal press-welded frame consisting of supporting specialized structures within which installed packages zvukoteploizoljatsii elements, each of zvukoteploizoljatsii elements includes layers vibrationfree material bituminous and at least the Dean, a layer of porous sound-absorbing material and a perforated cover plate, and between the panel and the layer of porous sound-absorbing material is formed an air gap, at the same time frame cabins connected to the supporting structures of the vessel by means of the vibration system consisting of the upper suspension comprising at least two of insulator upper suspension cabins, and at least two of insulator lower suspension cabins, made in the form of a cylindrical or conical coil springs, and packages zvukoteploizoljatsii elements can either be solid or composed of elements inscribed in the contour of the frame of the cab, and the sound-absorbing material zvukoteploizoljatsii elements in a slab of mineral wool basalt basis and across its surface lined with acoustically transparent material.

1 shows a General view of acoustic trim of the ship cabins; figure 2 presents the scheme of fastening of a piece of heat sinks to the ceiling, figure 3 - piece absorbent cabins, figure 4 - the profile projection.

Acoustic trim of the ship cabins (figure 1) is a stamped metal frame 6 consisting of load-bearing profile structures (not shown), inside of which is installed packages, Vukovi recallibration elements 10, each of which includes layers vibrationfree material for bituminous base and at least one layer of porous sound-absorbing material and a perforated cover plate, and between the panel and the layer of porous sound-absorbing material is formed an air gap (not shown). Inside cabins to the ceiling and walls are attached piece heat sinks (figure 2). Frame 6 cabins connected to the supporting structures vessel 1 through the vibration-insulating system, consisting of an upper suspension comprising at least two rubber insulator 2 and 3, the upper suspension cabins, and at least two of insulator 4 and 5 of the lower suspension cabins, made in the form of a cylindrical or conical coil springs. Inside cabins are table 7, chair 8 and the bed 9 for vessel maintenance personnel, and mount these items to the frame 6 cabins may be rigidly or through vibrationfree strip (not shown).

Packages zvukoteploizoljatsii elements 10 can be made either solid or composed of elements (not shown)inscribed in the contour of the frame 6 cabins, and consisting of a front with slotted perforations, and rear walls of stainless steel or galvanized sheet with a thickness of 0.7 mm with a polymeric protective and decorative coating type "Pural" thick 50 mcmii "Polyester" with a thickness of 25 μm, or aluminum sheet thickness of 1.0 mm and a thickness of 25 μm. With the front and rear walls of the package may be made from structural materials, coated on their surface with one or two sides of a layer of soft vibrationfree material, such as mastic VD-17, or material type "Guerlain-D", and the ratio between the thickness of the cladding and vibrationfree coating lies in the optimum range of values- 1:(2,5...3,5).

The sound-absorbing material zvukoteploizoljatsii elements 10 made in the form of slabs of basalt mineral wool on the basis of type "Rockwool", or mineral wool of type "URSA", or basalt wool type P-75, or glass wool lined with glass wool material, or a foamed polymer, such as polyethylene or polypropylene, and an absorbent element across its surface lined with acoustically transparent material, such as fiberglass type EZ-100 or a-type polymer Povide". The sound-absorbing material may also be made of a hard porous sound-absorbing material, for example of penelopina or cermets, or metalloboranes, or stone-limestone with porosity in the range of optimal values: 30...45% (not shown). The sound-absorbing material 6 may be made in the form of crumbs from solid vibrocentric materials on the example of the elastomer, polyurethane or plastic-type "agate", "Antifibrin", "Swim", and particle size of the crumb lies in the optimum range of values: 0,3...2.5 mm (not shown).

Piece material (Fig 3 and 4) consists of a rigid frame 11 mounted on the ceiling of the building for the hooks 14 or on the ropes, and containing sound-absorbing elements 12, and the frame 11 with the elements 12 are placed in an acoustically transparent membrane 13. The frame is made porous, and in each of the cells placed element 12, which is made in the form of a rectangular prism with the dimensions of the ribs L×H×B, which lies in the optimum range of values of L:H:B=2:1:0.5 or cube with the size of the edge k×L, where min L=100 mm; k - coefficient of proportionality, which lies in the range from 1 to 10 in increments of 2. When hanging the frame 11 (2) must be complied with optimal dimensions: D - from the center of the frame to the point of suspension to the ceiling and With a distance between axes of adjacent frames, and the ratio of these sizes should be in the optimal range of values: C:D=1:1...4:1.

External perforated surround the surface of the polyhedra of each of the elements 12 has the following options perforations: diameter holes 3...7 mm, perforation ratio of 30%to 35%. And the shape of the holes can be made in the form of round holes, triangle, square, pryamougolnogo is or diamond-shaped profile (not shown). In the case of non-circular holes as the conditional diameter should be considered the maximum diameter fits the polygon circumference.

External perforated surround the surface of the polyhedra of each of the elements 12 can be made with slotted perforations (not shown), the rate of perforation is made equal to or more than 0.3, while the sheet is made of stainless steel or galvanized sheet with a thickness of 0.7 mm with a polymeric protective and decorative coating type "Pural" thickness of 50 μm or "Polyester" with a thickness of 25 μm, or aluminum sheet thickness of 1.0 mm and a coating thickness of 25 microns.

As a sound absorbing material used slabs of basalt mineral wool on the basis of type "Rockwool", or mineral wool of type "URSA", or basalt wool type P-75, or glass wool lined with glass wool material, or a foamed polymer, such as polyethylene or polypropylene, as well as acoustically transparent material, such as fiberglass type EZ-100 or a-type polymer Povide".

As a sound absorbing material used plates on the basis of aluminothermic alloys with subsequent filling them with titanium hydride or by air with a density in the range of 0.5...0.9 kg/m3with the following mechanical properties: compressive strength in the range 5...10 MPa, tensile projectors, the b in the range of 10 to 20 MPa.

As a sound absorbing material used items from hard porous sound-absorbing material, for example of penelopina or cermets, or metalloboranes, or stone-limestone with porosity in the range of optimal values: 40...50%.

As the sound-absorbing material elements are used with layer-by-layer and cross-winding of the porous yarn wound on acoustically transparent frame, for example the wire frame.

As a sound-absorbing material is crushed from solid vibrocentric materials, such as elastomer, polyurethane, or plastic-type "agate", "Antifibrin", "Swim", and particle size of the crumb lies in the optimum range of values: 0,5...2,0 mm

Acoustic trim of the ship cabins operates as follows.

Packages zvukoteploizoljatsii elements 10 reduce structural and reverberation components of the noise. Pad of polyurethane foam effectively dampen high frequency vibrations in the air, the source of which is energy flow sound pressure. Polyurethane foam is both reliable heat insulator due to its high porosity, isolated from both sides of a thin molten film of polyurethane foam. Decorative perforated wood-fiber Board is the tsya good vibration damper. The transfer of sound energy into heat (dissipation, the dissipation of energy occurs in the pores of the material, which is a model of cavities "Helmholtz", where energy losses occur due to friction oscillating with the frequency of excitation of the mass of air in the mouth cavity wall of the cap, having a form of an extensive network of pores of the material. To prevent rashes soft absorbers provided by the glass, such as type EZ-100, located between the absorber and the perforated wall.

Piece absorber works as follows.

The absorption at low and medium frequencies is due to the acoustic effect based on the principle of Helmholtz resonators formed by micropores sound-absorbing elements 12. Various amounts of the resonant cavities are used to suppress the sound vibrations in the desired audio frequency range, typically large amounts of noise reduction at low frequencies and small - in the region of medium and high frequencies. An advantage of the invention is its versatility for different production areas, with a variety of noise characteristics. It should be noted the relative ease of setting piece Svyatogo is Italia on the desired frequency range of the noise and its economical efficiency (meaning the reduction of noise to sanitary and hygienic norms).

1. Acoustic trim of the ship cabins containing metal press-welded frame consisting of supporting specialized structures within which installed packages zvukoteploizoljatsii elements, wherein each of zvukoteploizoljatsii elements includes layers vibrationfree material for bituminous base and at least one layer of porous sound-absorbing material and a perforated cover plate, and between the panel and the layer of porous sound-absorbing material is formed an air gap, at the same time frame cabins connected to the supporting structures of the vessel by means of the vibration system consisting of the upper suspension comprising at least two rubber insulator upper suspension cabins, and at least two of insulator lower suspension cabins, made in the form of a cylindrical or conical coil springs, and packages zvukoteploizoljatsii elements can either be solid or composed of elements inscribed in the contour of the frame cabins, and sound-absorbing material zvukoteploizoljatsii elements made in the form of slabs of basalt mineral wool on the basis of and throughout its surface lined with acoustically transparent material, and a piece of the material made in the form of the gesture is th frame, mounted on the ceiling of the cabin for hooks or ropes, and contains elements with absorbent material wrapped with acoustically transparent material and placed in a perforated surface, and as the sound-absorbing material used slabs of basalt mineral wool on the basis of type "Rockwool", or mineral wool of type "URSA", or basalt wool type P-75, or glass wool lined with glass wool material, or a foamed polymer, such as polyethylene or polypropylene, as well as acoustically transparent material, such as fiberglass type EZ-100 or a-type polymer Povide".

2. Acoustic trim of the ship cabins according to claim 1, characterized in that each piece of heat sinks consists of a rigid frame attached to the ceiling of the cabin for hooks or ropes, and contains sound-absorbing elements, and the frame is made porous, and in each of the cells placed sound-absorbing element, which is made in the form, for example, in the form of a rectangular prism with the dimensions of the ribs L×H×B, which lies in the optimum range of values of L:H:B=2:1:0.5 or cube with the size of the edge k×L, where min L=100 mm; k - coefficient of proportionality, which lies in the range from 1 to 10 in increments of 2, and the installation of a frame must be observed for optimal aspect ratios: D from the center of the frame to the point of suspension to the ceiling IP the distance between the axes of adjacent frames, and the ratio of these sizes should be in the optimal range of values: C:D=1:1 to 4:1.



 

Same patents:

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FIELD: technological processes; construction.

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1 dwg

The invention relates to a building

The invention relates to shipbuilding, particularly to the finishing of ship compartments

The invention relates to shipbuilding, in particular to the finish areas of the vessel

The invention relates to shipbuilding and ship designs insulated decks

The invention relates to shipbuilding, in particular sewing marine areas and decking floors (Piolo) boats and small vessels, but can be used in construction for residential, office, public buildings and constructions of various types and purposes

The invention relates to sailing, shipbuilding, and specifically to the design of ballast keels

FIELD: transport.

SUBSTANCE: proposed invention relates to machine building and can be used as a cabin in river and sea ships and other objects of water transport. Proposed cabin comprises metal extruded-welded carcass made up of load bearing section structures accommodating packages of noise-vibration-heat-proof elements. Each said element comprises layers of bitumen-base vibrationproof material, one layer of porous noise absorbing material and perforated decorative panel. Air gap is formed between said panel and layer of porous noise-absorbing material. Noise absorbing material of aforesaid noise-vibration-heat-proof elements represents a plate made from basalt-based mineral cotton lined by acoustically transparent material over all its surface. Cabin carcass is jointed with ship primary structures by vibration isolating system consisting of upper and lower suspensions. Upper suspension consists of two rubber vibroinsulators. Every suspension consists of two vibroinsulators representing coil or helical springs.

EFFECT: higher comfortability, improved working conditions of operator.

2 dwg

Ship cabin // 2399547

FIELD: transport.

SUBSTANCE: proposed invention relates to machine building and can be used as a cabin in river and sea ships and other objects of water transport. Proposed cabin comprises metal extruded-welded carcass made up of load bearing section structures accommodating packages of noise-vibration-heat-proof elements. Each said element comprises layers of bitumen-base vibrationproof material, one layer of porous noise absorbing material and perforated decorative panel. Air gap is formed between said panel and layer of porous noise-absorbing material. Cabin carcass is jointed with ship primary structures by vibration isolating system consisting of upper and lower suspensions. Every suspension consists of two vibroinsulators representing coil or helical springs. Noise absorbing material of aforesaid noise-vibration-heat-proof elements represents a plate made from basalt-based mineral cotton lined by acoustically transparent material.

EFFECT: higher comfortability, improved working conditions of operator.

2 dwg

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