Low-noise ship cabin

FIELD: transport.

SUBSTANCE: 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 antivibration 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 acoustic absorber is made as rigid carcass attached to cabin ceiling by hooks or on ropes. Acoustical ceiling consists of rigid carcass suspended on ceiling. Inside the carcass, sound-absorbing material wrapped by sound-transmitting material is placed. Perforated sheet is attached to the carcass. Additionally, sound absorbers are located under suspended acoustical ceiling.

EFFECT: better antinoise and antivibration properties.

2 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 №2451620 (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 od the n layer of porous sound-absorbing material and a perforated decorative panel, 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 insulator upper suspension cabins, and at least two vibration isolators 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 made in the form of slabs of basalt mineral wool on the basis of and throughout its surface lined with acoustically transparent material.

1 shows a General view of the low noise of the ship cabins; figure 2 presents the construction of suspended acoustic ceiling.

Low noise ship cabin (figure 1) is a stamped metal frame 6 consisting of load-bearing profile structures (not shown), inside of which is installed packages zvukoteploizoljatsii elements 10, each of which includes layers vibrationfree material for bituminous base and at least one layer of porous sound-absorbing material and p is hariramani decorative panel, 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 (not shown). 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 vibration isolators 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). The cabin is equipped with suspended acoustic ceiling (figure 2).

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" thickness of 50 μm or "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 adrea wall packs can be made of structural materials coated on their surface with one or both sides with a layer of soft vibrationfree material, for example 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, such as 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).

Suspended acoustic ceiling (figure 2) consists of a rigid spacecraft is Casa 12, made in the form of a rectangular parallelepiped with dimensions of the sides in terms of V×C, which lies in the optimum range of values:C=1:1...2:1, suspended from the ceiling industrial buildings using suspensions 14, having a bracket 15 for wiring power to the lamps 17, mounted in the frame 12. The fastening of the frame to the ceiling by using anchor-screws 16. To the frame attached perforated plate 13, on which a layer of acoustic transparent material 18 is a layer of sound absorbing material 11. When installing acoustic ceiling must be observed optimal sizes: D - from the point of suspension of the frame to any of its sides and the thickness of the layer of absorbent material, and the ratio of these sizes should be in the optimal range of values: E:D=0,1...0,5. Perforated sheet 13 has the following options perforations: diameter perforation - 3...7 mm, the percentage of perforation 10%...15%, and the shape of the perforations can be made in the form of round holes, triangular, square, rectangular or diamond-shaped cross-section (the diagram shows a square hole). In the case of non-circular holes as the conditional diameter should be considered the maximum diameter fits the polygon circumference.

As zvukopoglaschayuschih the 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, for example, fiberglass type EZ-100 or a-type polymer Povide".

As a sound absorbing material used plates on the basis of aluminium-containing alloys, followed by 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, a bending strength 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.

Under the suspended acoustic ceiling 13 are additionally at a level that does not interfere with the operation of the cabins, custom-made heat sinks 19 and 20.

As the sound-absorbing material is used crumb of hard shaking openfireuser materials, for example 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

Low noise ship cabin is 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 stove is a good vibration damper. The transfer of sound energy into heat (dissipation, the dissipation of energy occurs in the pores of the material, which represents 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 fiberglass, for example, type EZ-100, located between the absorber and the perforated wall.

The pendant is cysticerci ceiling works as follows.

Hanging suspended acoustic ceiling carried out on suspensions 14, which are mounted to the ceiling using a stud screws 16 and the other end fixed on the frame 12. Sound waves propagating in the production area, interact with the filled material cavities. The interaction of sound waves with active cavities filled with non-combustible material, leads to samohlasen in the high frequency range, and due to the presence of cavities increases the surface absorption and, consequently, increases the rate of absorption.

Low noise ship 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 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 top is Odesa cabins, and at least two vibration isolators 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 made in the form of slabs of basalt mineral wool on the basis of and throughout its surface lined with acoustically transparent material, a single absorber is made in the form of a rigid frame attached to 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, for example, fiberglass type EZ-100 or a-type polymer Posiden, and suspended acoustic ceiling consists of a rigid frame, suspended from the ceiling cabins located inside the frame-absorbing material, bernalyn acoustically transparent material, and attached to the frame perforated sheet, and the frame is made in the form of a rectangular parallelepiped with dimensions of the sides in terms of V×C, which lies in the optimum range of values:C=1:1...2:1, and must also be adhered to the optimum ratio of dimensions: D - from the point of suspension of the frame to any of its sides and the thickness of the layer of absorbent material, and the ratio of these sizes should be in the optimal range of values: E:D=0,1...0,5 and frame mounted luminaires, with perforated sheet has the following options perforations: diameter perforation - 3...7 mm, the percentage of perforation 10%...15%, characterized in that under the suspended acoustic ceiling additionally located at a level that does not interfere with the operation of the cabins, custom-made heat sinks.



 

Same patents:

FIELD: transport.

SUBSTANCE: 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 antivibration system consisting of top and bottom suspensions. Top suspension consists of two rubber bumpers. Bottom suspension consists of two beaded meshed vibration isolators. Sound absorbing material represents a plate from mineral cotton on basalt base stock faced by sound-transmitting material over its entire surface. Standard 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.

6 dwg

FIELD: machine building.

SUBSTANCE: vibroisolator comprises case, base, spring top and bottom stroke limiters made of elastomer and threaded bush to couple said spring with the body to be damped. Said case is rigidly coupled with the base composed by round centre pad. Cylindrical spring stroke bottom limiter with cylinder-taper bore rests on centre plate. Spring interacts with top and bottom stroke limiters via the lower thrust barrel and top external spring cover rigidly connected with said threaded bush. Case top part is connected with cover. Damper is secured to case base with the help of upper pressure plate. Said damper comprises gauze elastic element to be locked by upper and lower plates to rest on the base. Said base is composed by the plate with mounting holes. Lower plate is connected with the base. Upper pressure plate is connected with central ring clamped by coaxial ring connected with the base.

EFFECT: efficient damping in resonance mode, simplified design and assembly.

4 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed system comprises platform resting on two vibroisolators and damping element arranged there under. One vibroisolator is arranged above the platform free end and secured at the lever. Two vibroisolators are secured at the lever opposite ends relative to platform free end. Damping element is secured at the platform opposite end. Every said vibroisolator comprises the case rigidly connected with the base composed by round centre plate. Damper is secured to case base with the help of upper pressure plate. Said damper comprises gauze elastic element to be locked by upper and lower plates to rest on the base. Said base is composed by the plate with mounting holes. Lower plate is connected with the base. Upper pressure plate is connected with central ring clamped by coaxial ring connected with the base.

EFFECT: efficient damping in resonance mode, simplified design and assembly.

3 dwg

FIELD: machine building.

SUBSTANCE: proposed platform comprises rigid carcass, deck and elastically damped elements connecting said carcass with the bed. Every said elastically damped element comprises the case resting on said bed, resilient element composed by spring, top and bottom damping spring stroke limiters made of elastomer. Said spring interacts with said limiters via bottom support barrel and top cover of said spring. Said cover is rigidly coupled with threaded sleeve screwed to platform carcass. Vibration damping element is secured between threaded sleeve and platform carcass. Case top part is connected with cover. Cover end has resilient platform carcass travel limiter secured thereto and made of elastomer. Damper is secured to case base by top pressure plate. Damper comprises gauze flexible element locked by top and bottom washers to rest on the bed. Said bed is composed by plate with fastening bores. Bottom washer is coupled with said bed. Top pressure washer is connected with central ring with female ring aligned therewith and connected with the bed.

EFFECT: higher efficiency, simplified design.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive seats, particularly, to driver seat dampers. Seat comprises the base, carcass with pad and backrest interconnected with scissors-type guide and damper. Said damper comprises padbody, resilient element, resilient element stroke limiters and threaded sleeve coupling said resilient element with vibroinsulated component Said body is rigidly jointed with the base. Elastically damping element acts as spring stroke lower limiter, spring axis being perpendicular to said base. Spring interacts with upper and lower stroke limiters. Spring stroke upper limiter is secured to the cover. Gauze damper is secured to body pad composed by round centre plate. Said gauze damper comprises plate-shape base with fastening holes, mesh resilient element with its lower part resting on said pad and locked by bottom washer rigidly connected with said pad and upper part locked by upper pressure washer rigidly connected with central ring covered by coaxial ring rigidly secured to aforesaid pad.

EFFECT: higher efficiency of damping in horizontal direction, simplified design and better performances.

2 dwg

FIELD: machine building.

SUBSTANCE: cabin includes a metal formed and welded frame consisting of load-carrying shaped structures, inside which packs of sound and vibration and heat insulating elements are installed. Each of such elements includes layers of vibration damping material on bitumen basis, one layer of porous sound absorbing material and a perforated skin panel. An air gap is made between the panel and layer of porous sound absorbing material. Frame of the cabin is connected to load-carrying structures of a ship by means of a vibration insulating system consisting of upper and lower suspensions. Each suspension consists of two vibration insulators made in the form of cylindrical or conical helical springs. Sound absorbing material of sound and vibration and heat insulating elements is made in the form of a plate from mineral wool on basalt basis and lined throughout its surface with acoustically transparent material.

EFFECT: improving noise and vibration damping efficiency.

5 dwg

FIELD: construction.

SUBSTANCE: sound absorber comprises a stiff perforated frame, inside of which there is a sound-absorbing material. The lower part of the frame is made of conical shape with a cover. The upper part of the frame is made as cylindrical and is fixed to the cover of the lower part of the frame by means of a vibration damping gasket, making it possible to damp high-frequency oscillations. An element is fixed hingedly to the upper part of the frame, with the help of which the frame is fixed to the ceiling of the industrial room. Cavities of lower and upper parts of the frame are filled with sound absorbing materials of different density. Around the upper part of the frame there is one helical sound absorbing element made in the form of a cylindrical helical spring from dense non-combustible sound absorbing material.

EFFECT: increased efficiency of noise suppression at low and medium frequencies.

2 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building. Seat comprises the base, carcass with pad and backrest interconnected with scissors-type guide. Damper is hinged to said carcass and consists of three articulated resilient element. Helical coil spring is arranged at the center to rest, by one end, upon chassis moving parts web and, by opposite end, on hydraulic damper circular flange. Hydraulic damper is composed of two aligned cylindrical inner and outer sleeves that make a tight annular chamber. Chamber top part is closed by moving circular sealed flange. Chamber bottom part is sealed by circular washer resting on bottom eye opening. Circular piston with orifices is arranged for passage of damping fluid. Said piston is articulated with annular flange whereon thrusts the spring. Lower end of guide rod is rigidly jointed with lower shackle while its upper end is locked on aforesaid web by flexible element made from elastomer.

EFFECT: higher efficiency of damping in horizontal direction, simplified design and better performances.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive seats, particularly, to driver seat dampers. Suspension comprises moving parts and base. Suspension flexible element is made up of three interconnected flexible elements. Helical coil spring is arranged at the center to rest, by one end, upon chassis moving parts web and, by opposite end, on hydraulic damper circular flange. Hydraulic damper is composed of two aligned cylindrical inner and outer sleeves that make a tight annular chamber. Movable annular flange with seals arranged on inner and outer surface covers top section of said chamber while annular washer covers its bottom section. Annular cylinder is fitted inside said chamber to divide it in two parts: top and bottom. Said piston is furnished with orifice holes to allow damping fluid flow from annular chamber bottom to its top and vice versa. Said piston is articulated with annular flange whereon thrusts the spring. Lower end of guide rod is rigidly jointed with lower shackle while its upper end is locked on aforesaid web by flexible element made from elastomer. Guide rod top part groove accommodates damping ring to kill suspension oscillation in horizontal plane.

EFFECT: higher efficiency of vibration isolation.

1 dwg

FIELD: machine building.

SUBSTANCE: support includes external and internal rings and a multilayered pack of corrugated ring plates, which is arranged between them. Projections are made on inner surface of the external ring. Threaded holes are made in internal ring and threaded displacers that provide preload of each corrugation of ring plates are installed in them.

EFFECT: improvement of dissipative properties in resonant modes owing to providing the damper operation at optimum preloads and simplification of the manufacturing procedure.

1 dwg

FIELD: transport.

SUBSTANCE: 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 antivibration system consisting of top and bottom suspensions. Top suspension consists of two rubber bumpers. Bottom suspension consists of two beaded meshed vibration isolators. Sound absorbing material represents a plate from mineral cotton on basalt base stock faced by sound-transmitting material over its entire surface. Standard 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.

6 dwg

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

FIELD: machine building.

SUBSTANCE: proposed device comprises reinforcing rib and plate elements separated by visco-elastic material, one being attached to said reinforcing rib and another one secured to vehicle body. Reinforcing rib is secured to lining between adjacent reinforcing ribs in parallel with the highest ribs. Reinforcing rib height makes, at least, the height of the lowest body lining reinforcing rib while its length makes, at least, half the distance between adjacent lining reinforcing ribs. One of said plate elements is secured on free end of reinforcing ribs and features thickness making, at least, half the thickness of said rib. Another plate element is secured to adjacent lining reinforcing rib and features thickness making, at least, two thicknesses of the first aforesaid plate elements.

EFFECT: reduced vibration of vehicle body lining.

2 dwg

FIELD: construction industry.

SUBSTANCE: invention is used when placing biological protection plates intended for protection against radiation in compartments of hold rooms of shipboard nuclear power plant. Covering attachment method consists in placing of biological protection plates on attachment surface, which have mutually corresponding profile of face and side walls; at that, biological protection plates are laid on attachment surface overlapped one on the other so that edges between biological protection plates are aligned; then closing fasteners are installed in holes and rigidly attached through the holes of the latter to attachment surface with possibility of further connection of edges of closing fastener and hole of biological protection plate.

EFFECT: increasing life time of operating reliability of covering, as well as easy erection and removal of biological protection plates laid on surface of complicated configuration, which is in constraint conditions.

2 dwg

FIELD: technological processes; construction.

SUBSTANCE: cladding of vessel premises contains panels, edges of which have Z-shaped form in their cross-section, and with their shelves they are fixed at guides, and also embedded profile of U-shaped cross section, which is installed between panels. One of panel shelves is fixed to guides with the help of latch, into which the panel shelf is inserted after installation of embedded profile into previous panel, and other shelf of panel after assembly of the whole structure is fixed to guides with the help of hardware.

EFFECT: fast assembly of panels without gaps.

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

FIELD: transport.

SUBSTANCE: 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 antivibration system consisting of top and bottom suspensions. Top suspension consists of two rubber bumpers. Bottom suspension consists of two beaded meshed vibration isolators. Sound absorbing material represents a plate from mineral cotton on basalt base stock faced by sound-transmitting material over its entire surface. Standard 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.

6 dwg

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