RU2472648C1 - Car body panel multilayer reinforced vibration-and-noise killing coating - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to car body panel multilayer reinforced vibration-and-noise killing coatings to reduce structural noise of car body thin-sheet panels. Said panel consists of reinforcing element, viscoelastic layer, adhesion interlayer, and adhesion mounting later. Said layers make modular composition is composed of reinforcing layer base to carry two sets of isolated flat-sheet viscoelastic preset size and shape interlayers arranged in tile manner to make air gap between opposite end surface. Note here that said viscoelastic interlayer may feature triangular, quadrangular or regular polyhedral shape and identical thickness. Every said viscoelastic interlayer is made from, at least, two types of viscoelastic vibration-damping substances with different mechanical properties. Note here that ordered position provides for staggered surface arrangement. Every overall dimension of face surfaces of every said interlayer is, at least, 5 times larger than thickness of viscoelastic layer while surface area of projection of face surface of every interlayer on rear surface of reinforcing layer makes 2,5×10^-6…1×10^-2 m².

EFFECT: better vibration-and-noise killing properties.

7 cl, 10 dwg

Description

The invention relates to vibration-damping coatings designed to reduce the structural noise of vibration-sounding, characterized by an intense vibration field, thin-sheet panels of the body of vehicles (hereinafter referred to as ATS), mainly passenger cars and buses. In some cases, in limited use, it can also be used to reduce structural noise emitted by vibrating thin-sheet metal structures of cabin panels of other land vehicles - tractors, combine harvesters, road transport machines, as well as cabins, passenger rooms and engine compartments of technical means water and air transport, casings and hooding elements of various stationary and mobile power plants (mobile compressor stations ntions, diesel units, etc.), housings for household appliances (refrigerators, washing machines, dishwashers, vacuum cleaners, etc.).

Various vibration-damping coatings are known, the materials of which have high internal friction, presented, for example, in the form of viscoelastic mastics or plane-sheet viscoelastic cushioning laminates, adhesive mounted on the surfaces of vibrating thin-walled metal panels by spraying, stapling, fusing (thermo-adhesive) or using additional thermoactive adhesive layer deposited on the mounting surfaces of plane vibration damping yty. As a structural basis of vibration-damping coatings, as a rule, mixtures based on bitumen or polymer compositions of various chemical compositions are used, using a variety of plasticizers, stabilizers, fillers and binders, giving them certain mechanical, vibration-damping, technological, operational or other characteristics. In particular, certain types and properties of vibration-damping coatings are described in well-known monographs by domestic authors:

[1] Nikiforov A.S. Vibration absorption on ships. - L .: Shipbuilding. - 1979 - S.53-78;

[2] Nikiforov A.S. Acoustic design of ship structures. - L .: Shipbuilding. - 1990 - S.154-165;

[3] Ionov A.V. Means of reducing vibration and noise on ships. - St. Petersburg: Central Research Institute named after Acad. A.N. Krylova. - 2000 - S.185-208;

[4] Bogolepov I.I. Industrial soundproofing. - L .: Shipbuilding. - 1986 - S.307-309;

[5] Kolesnikov A.E. Noise and vibration. - L .: Shipbuilding. - 1988 - S.228-231;

[6] Ivanov N.I., Nikiforov A.S. Fundamentals of vibroacoustics. - SPb .: Polytechnic. - 2000 - S.316-320.

Known structures of vibration-damping coatings containing a viscoelastic layer are evaluated by a pronounced dependence of vibration-damping, qualified by a dynamic elastic modulus (Young's modulus) and a loss coefficient characterizing the degree of conversion (dissipation) of the energy of mechanical vibrations (bending deformation vibrations) of a supporting mechanical base (thin-sheet vibration-noise panel ) to thermal energy from the temperature of their heating. Depending on the structural and chemical compositions of the viscoelastic layer of the vibration-damping coatings, as a rule, a predetermined (relatively narrow) working operational temperature range of the effective values of the loss coefficient is achieved (with the provision of an effective process of vibration-damping). The disadvantages of this type of structures of vibration-damping coatings for using them on vibro-acoustically active parts of machine components and mechanisms operated in wide ranges of temperature changes of the working and external environment are obvious. So, for example, the operating temperature of the floor panels of a car body varies in the range 0 ... + 120 ° C, as it is noted in particular in the source [7].

[7] Fesina M.I., Krasnov A.V., Leonov S.G. On rationalizing the selection of effective vibration damping coatings for car body panels taking into account their operational temperature loading. // Machine builder. - 2008. - No. 9. - S. 41-45.

For this reason, it is most advisable to use viscoelastic substances that are effective in the entire (overwhelming), and very wide, operating temperature range of a vibro-noiseless technical object. However, the solution to this technical problem seems to be very difficult due to the fact that the typical viscoelastic substances of materials used in the structures of vibration-damping coatings are primarily organic (based on carbon compounds) or synthetic (polymer) origin. As a result, they significantly change their stiffness and viscoelastic properties depending on temperature and can be in glass-like, rubber-like (rubber-like) and plastic states [3]. The magnitude and nature of changes in the dynamic elastic moduli and the loss coefficients of polymers versus temperature are determined by their chemical structure and molecular mobility, intra- and intermolecular interactions. To expand the temperature region of the transition from a glassy state to a viscoelastic, an appropriate plasticizer is introduced into the polymer (viscoelastic layer). However, the potential for such an impact is very limited. In addition, it is necessary to ensure the improvement of the technological properties of vibration-damping coatings in terms of achieving the required quality of reliable (stable) adhesive surface mating with the surfaces of supporting thin-sheet panels, eliminating the formation of bubble blisters and cracking in the process of increasing heating temperatures during application and high-temperature drying (leading, including the associated loss of vibration-damping properties), elimination of moisture accumulation, contributing to causing the appearance of foci of corrosion in the defective gasket zones formed in this way (arising from technological processes of washing, painting, etc.).

Thus, when using typical vibration-damping coatings, it is almost always necessary to solve the following current problems:

- improving their vibration-damping properties, with a possible (realized) concomitant decrease in specific surface weight (coating thickness, cost, etc.);

- expansion of the operating operational temperature range of vibration-damping coatings;

- improving the reliability and temperature stability of the adhesive properties in the interface between the vibration-damping coatings and non-planar surface areas of the bearing vibration-noise-active thin-sheet panels, including by increasing the ductility of the viscoelastic layer and / or increasing the adhesive properties of the sticky adhesive or thermoactive layer, usually causing a significant increase in cost vibration-damping coating.

Most of the known single-layer plane-sheet (plastisol, laminate) vibration-damping coatings have a relatively narrow operating temperature range for effective vibration-damping. One of the directions of its expansion is the use of multicomponent vibration-damping coatings, the structural fractional and chemical composition of which includes a large number of various components (compositions) of raw materials, plasticizers, fillers, stabilizers, binders, etc. By changing their number and percentages, it is possible, to one degree or another, to adjust (expand or narrow) the temperature dependence of the dynamic modulus of elasticity and the loss coefficient characterizing the efficiency of vibration and noise damping.

It is known, in particular, the vibration-damping coating described in European patent application No. 2006/077757, IPC C09K 3/00, published July 27, 2006, containing a base working layer of a viscoelastic material with the inclusion in its structure of particles of foreign material having the shape of spheroids, excellent according to their physical and mechanical characteristics, from the characteristics of the base working layer of a viscoelastic material. In this case, the ratio of the axial lengths of such spheroidal particles in the longitudinal and transverse directions is not more than 1. By using this type of structure of the vibration-damping coating, a tuned increase in the vibration-damping properties in a narrow temperature range (not more than 20 ° C) is achieved when using one type and size of particles, or obtaining lower ("compromise medium") vibration-damping properties in a wider range of changes in operating operating temperatures - when mixed In this embodiment, the use of several types of such spheroid particles that differ in the indicated geometric (overall) parameters.

Japanese Patent Application No. 63265934, IPC C08J 9/06, published 02.11.1988, describes a vibration-damping coating comprising a layer of viscoelastic material with various fillers and binders introduced. In this case, one of the fillers when it is heated has the property of volume expansion, which ultimately allows you to increase the thickness of the layer of the gasket up to 4 times. An important technological requirement in this case is the need for exact compliance with the dosing percentage of the added filler substance. Otherwise, the use of a filler substance, for example, a mica type with a violation of a predetermined metering accuracy, causes a significant drop in the vibration-damping properties of the coating material.

The RF patent for invention No. 2188214, IPC B60R 13/08, published on August 27, 2002, describes a vibration-damping coating containing petroleum bitumen, graphite, kaolin, talc, cotton fibers. Additionally, the noted vibration-damping coating may contain an adhesive mounting layer based on aqueous acrylic dispersion. In this case, the effective thickness of the vibration-damping coating is 1.5 ... 2.5 mm. The material of the present vibration-damping coating is obtained by preparing a dispersion composition in a rotary-type crusher, fractionating the resulting mixture, homogenizing at a temperature above the softening temperature of bitumen and calibrating to a sheet to obtain a plane-sheet vibration-damping material.

In German patent for invention No. 4421012, IPC C08L 27/06, published on December 21, 1995, a vibration-damping coating of a plastisol type is described containing at least one type of powdered copolymer of vinyl chloride and vinyl acetate (5 ... 60%), plasticizer (5 ... 65%), filler (not more than 40%), adhesive substance (0.01 ... 5%). As follows from the description of the patent for the invention, the use of the presented structure of the vibration-damping coating ensures the achievement of maximum values of the composite loss coefficient equal to 0.15 ... 0.20 in an effective operating temperature range of 0 ... + 20 ° C. At the same time, at higher operating temperatures of the automatic telephone exchange, the composite loss coefficient tends to sharply decrease, reaching 0.03 ... 0.05 already at a temperature of + 40 ° C (at that time, as is known from [8 ... 10], that the materials with a loss factor below 0.05, it is no longer considered to be effective vibration-damping).

[8] Combating noise in production: a guide. / Ed. Yudina E.A. - M.: Mechanical Engineering, 1985.

[9] Tartakovsky B.D. Scientific and practical issues of creating and mass production of vibration-absorbing materials and coatings and vibration-absorbing structures. / BD Tartakovsky // Materials of the All-Union meeting "The problem of improving the acoustic characteristics of machines." - M., 1988. - p. 36-47.

[10] Fesina M.I. Car acoustic materials. Design and research of low noise vehicle designs. / M.I. Fesina, A.V. Krasnov, L.N. Gorina, L.A. Pankov. // Monograph in two parts. - Tolyatti: TSU., 2010. - Part 2.

U.S. Patent No. 4,678,707, IPC B32B 15/08; F16F 9 / 30L, published 07/07/1987, describes a vibration-damping coating containing a viscoelastic layer comprising a polyvinyl acetate resin mixed with finely dispersed conductive carbon particles (in a volume of 10 ... 80%), while the ratio of the average carbon particle size to the thickness of the viscoelastic the layer is 0.5 ... 1.7. Changing the volume of carbon particles relative to the total volume of the viscoelastic layer and their overall dimensions allows you to directionally "tune" a narrow operating temperature range for effective vibration and noise damping (equal to 15 ... 20 ° C).

The disadvantage of the above-described monolithic single-layer multicomponent vibration-damping coatings is the complication of the structural composition and, accordingly, the complexity and cost of the manufacturing process, which entails a corresponding increase in the cost and complexity of manufacturing such vibration-damping coatings. These shortcomings are caused, in particular, by the need to include in the manufacturing process additional labor-intensive operations for the manufacture of composite components of various configurations, to ensure their subsequent accurate dosing and uniform distribution throughout the volume of the material structure.

Another technical (technological) direction of increasing the efficiency of vibration damping and expanding the operating temperature range of effective vibration damping is the use of multilayer versions of vibration damping coatings. Moreover, their mating composite layers, successively superimposed on each other, significantly differ from each other in structural and chemical compositions, physicomechanical characteristics (densities, thicknesses, dynamic stiffness, etc.), which contributes to the expansion of the worker specified by the technical task (technical conditions) operating temperature range of effective vibration and noise damping of vibrations of a carrier vibro-noise structure (for example, a carrier sheet of a body panel). In particular, multilayer structures of vibration-damping coatings that are more effective in terms of vibration and noise damping are known, in which an additional external toughening reinforcing layer is introduced to implement and strengthen the shear deformation mechanism, which bear the main responsibility for the efficiency of such a process of vibration and noise damping in general, performed, for example, in the form of a metal foil or in the form of a layer of another thin (for example, polymer), but b more rigid (than viscoelastic layer) material. Vibration-damping materials of this type, produced in the form of layered coatings, are called multilayer reinforced vibration-damping coatings (hereinafter referred to as MAVShP).

It is known, in particular, the use of MASHP in the design of the air intake duct of a vehicle air conditioning system (RF patent for the invention No. 2151708, IPC B62D 25/08, B60R 13/08, published 06/27/2000), containing vibration-noise-active thin-sheet metal body panels rigidly joined together . Moreover, in order to increase the effect of vibration and noise damping, the front surfaces of these vibration-noise-active thin-sheet metal body panels in the zones of their vibrational antinodes (localization of the zones of maximum amplitude values) of the lower resonant intrinsic forms of bending vibrations are lined with MABPs containing at least one viscoelastic layer, a reinforcing layer of hard metal material and adhesive (adhesive or thermal adhesive) mounting layer.

In the German patent for invention No. 3704506, IPC B32B 15/08; F16F 9 / 30L, published on 07/07/1987, describes the LAMFR containing two or more layers of rigid reinforcing material interconnected by a viscoelastic layer, while these composite layers have different values of bending stiffness (dynamic elastic modulus) and loss coefficient, the maximum values of which suitably “tuned” to various operating operational temperature ranges of efficiency.

In the European patent for invention No. 0077987, IPC B60R 13/08, published on 05/04/1983, a UHBP is described containing an elastic connecting layer that directly mates with the surface of a damped supporting sheet panel, a viscoelastic layer and a reinforcing layer made of a mixture of unvulcanized thermoactive resin and inorganic filler.

In the European patent for invention No. 0285740, IPC B32B 11/08, published on 01/07/1988, a WBMP is described containing a viscoelastic layer made on the basis of a mixture of bitumen, mineral fillers, ferritic powder or synthetic resin, mounted with adhesive fastening on the surface of the carrier sheet due to the fusible thermoactive adhesive substance, as well as including a hard reinforcing layer mounted by means of an adhesive adhesive substance on the front surface of a viscoelastic layer.

In the patent of the Russian Federation for invention No. 2155283, IPC F16F 7/08, F16F 15/02, published on 08.27.2000, a UHMW is described comprising a lower viscoelastic layer made of a support pressed structure, an upper viscoelastic layer made of a plasticized mixture, and an adhesive mounting layer. Moreover, these viscoelastic layers have different thicknesses, stiffnesses and specific densities, and the ratio of Young's moduli of the upper and lower viscoelastic layers exceeds 0.1.

In Japan patent No. 1009732, IPC B32B 11/08, published on 01/13/1983, a WBMW is described, comprising a viscoelastic layer of a mixture of bitumen and a set of fillers, fixed to the surface of a damped supporting vibro-noise-active thin-sheet panel and a reinforcing metal layer, adhesively mounted on the surface of a viscoelastic layer. The formed multilayer structure of the MABP is easily amenable to the molding process, with a view to its further use on non-planar supporting thin-sheet panels of noise-active objects.

As a prototype, IWBM was selected, which is described in European patent for invention No. 1323523, IPC B32B 11/08, published on July 2, 2003, containing a viscoelastic vibration damping layer mounted on the surface of a carrier vibro-noise-active thin-sheet panel, a reinforcing layer made of a thin layer of hard material (for example , aluminum or steel foil), and a viscoelastic layer adhering to its face. In this case, the viscoelastic layer may contain an original elastic substance, which, under the influence of elevated temperatures (+ 150 ... + 170 ° C) fills small sub-stampings and bends with a small bend radius located in the mating area of the IABP assembly, which improves its adhesive bond with the mating surface of the vibro-noise sheet panel.

The use of a toughening reinforcing layer in the well-known structure of LABMW allows one to intensify the shear mechanism of vibrational viscoelastic amplitude deformations of the working viscoelastic layer, thereby increasing the efficiency of the vibration-damping process, and also, to some extent, additionally improving the sound insulation of LABF, and increasing the total (composite) dynamic stiffness of damped load-bearing panels . At the same time, the introduction of the reinforcing layer avoids the undesirable thickening of the viscoelastic layer of the MABBP associated with the achievement of a predetermined higher effect of vibration and noise damping of the panel, under the imposed rigid dimensional and layout constraints specified by the statement of work (TOR) for development.

The disadvantage of the technical solutions of the analogues presented and analyzed above, as well as the technical solution of the one chosen as a prototype, when solving the problems of ensuring high vibration and noise damping of thin-walled structures, is the relatively high specific surface weight of the MASBP (per unit area of the surface of the damped structure in kg / m ² ) when unsatisfactory vibration-damping properties in the region of increased (relative to the base temperature + 20 ° С) operating operating temperatures + 30 ... + 80 ° С. This is caused by the well-known sensitive temperature dependence of the dynamic elastic modulus and the loss coefficient of the viscoelastic layer of the MABP, which determine the effectiveness of vibration-noise damping from the operating operational temperature regime relevant for use in motor vehicles (ATS), for example, passenger cars using ICE as a power plant, which is, with on the one hand, a source of intense vibrational excitation and noise generation of attached units structures of the body, and on the other - high-temperature heat source placed close to it shumoaktivnyh body panels (first bulkhead and body floor).

The technical problem solved by the claimed invention is to use an ordered alternating mosaic surface distribution with formed perimetric air gaps and adhesive fastening on the back surface of the bearing reinforcing layer of at least two groups (families) of separate plane-sheet viscoelastic gaskets of given dimensions and geometric shapes made of various, at least two, brands of vibration damping materials, characterized by pronounced different effective vibration-damping properties, endowed with specified various limited temperature ranges. In this case, it is possible to achieve an improvement in the vibration and noise-damping properties of MABSS in a given extended range of operating operating temperatures, when realizing potentials to reduce the specific surface weight of this type of MABSS, due to the effective implementation of predominantly dynamic deformation shear processes occurring in viscoelastic in each of the individual temperature ranges layer structures characterizing each of the used types (brands) of at least two grouped (Families) separate ploskolistovyh viscoelastic pads. Thus, a temperature-tuned effective conversion of the mechanical work of the deformations into dissipated thermal energy is carried out, introduced by each of at least two families (groups) of different types (grades) of vibration-damping materials of separate plane-sheet viscoelastic gaskets, appropriately ordered distributed over the surface of the vibration-noise thin-sheet panel. Based on the analysis of comparable variants of vibration-damping devices of the same surface area of a solid vibrating structure, the claimed technical solution, under other identical conditions, promotes the use of a smaller mass of heterogeneous (various grades) of vibration-damping substances with respect to variants of devices with continuous multilayer monolithic coatings consisting of several, sequentially superimposed on each other, viscoelastic layers covered by a given surface area. The technological and operational properties of the inventive type of MABP are also improved, associated with the exclusion (weakening) of the process of formation of an insufficiently reliable and unstable adhesive bond with the mating solid surface of the vibrating structure, due, for example, to the formation of bubble blisters and cracking of the viscoelastic layer and / or its mounting on non-planar curved surfaces of technical objects.

The stated technical problem is solved due to the fact that the inventive MABP is carried out in the form of a modular structure formed by a bearing matrix surface of the reinforcing layer, on which, using the adhesive intermediate layer, mosaicly arranged with the formation of air gaps between opposite end surfaces, at least two groups of separate plane-sheet viscoelastic gaskets of a given overall dimensions and geometric shapes, mainly triangular, quadrangular or regular polygonal geometric shape, with their identical thicknesses, each of which is made of at least two different types (grades) of viscoelastic vibration damping substances (materials) with different physical and mechanical properties, characterized by specified values of the elastic modulus and loss coefficient in limited various temperature ranges, while orderly placement and fixing, with the provision of adhesive coupling of viscoelastic gaskets with the surface w reinforcing layer, provide alternating, preferably, the checkerboard pattern of surface distribution and air gaps formed between the mounted on the surface of the reinforcing layer opposing end faces separate ploskolistovyh viscoelastic pads are in the range _of t = (0,1 ... 6,0) h _{taken, taken} where h - the thickness of the viscoelastic layer, wherein each of the dimensions of the projections faces of each of the separate ploskolistovyh viscoelastic pads is not less than 5 times next page yshaet thickness h _taken viscoelastic layer, and the area of the front surface of the projection of each of the separate ploskolistovyh viscoelastic pads on the back surface of the reinforcing layer is 2.5 × 10 ^-6 ... 1 × 10 ^-2 m ^2.

The viscoelastic layer of each of the individual types (grades) of vibration-damping materials of separate small-sized flat-sheet gaskets of the inventive MABP can be made of known composite mixtures of organic and polymeric materials based on bitumen, a bitumen-polymer composition, polyvinyl chloride, an alkyl acrylate copolymer, a mixture of polybutadiene and cellulose rubber structure, modified bitumen melt with mineral organic and other fillers, binder E and reinforcing components, or other known composite components used in modern production technologies vibroshumodempfiruyuschih gaskets. At the same time, their structural and chemical composition and the technology of their production provide each of the used types (grades) of groups (families) of materials of the viscoelastic layer with certain given vibration-damping properties, characterized in certain limited temperature ranges by the loss coefficient and Young's modulus.

The reinforcing layer of the inventive MASP can be made of a rigid thin-sheet structure, for example, of metal foil (aluminum, steel), or of other rigid non-metallic materials or coatings (epoxy resins reinforced with fiberglass), while having a thickness of at least 0.1 of the thickness of the viscoelastic layer . The reinforcing layer can be made in both flat and non-planar geometric shapes, containing molded convex, concave and curved local surface areas, while the separate plane-sheet viscoelastic gaskets mounted in the bending zones of the reinforcing layer may contain various types of elements that compensate for mechanical and temperature deformations, made, for example, in the form of corresponding perforation holes or notches.

Adhesive conjugation of the surfaces of the reinforcing and viscoelastic layers of MABP is carried out using a sticky adhesive or thermo-adhesive (thermoactive) intermediate layer, or using the technological operation of high-temperature adhesive melting (sintering) of the structure of the material of the viscoelastic layer to the surface of the reinforcing layer. In this case, the adhesive mounting layer as one of the technological options for the manufacture of MABSHP can be applied exclusively to the rear mounting surfaces of the separate plane-sheet viscoelastic gaskets MABSHP, and the adhesive intermediate layer can be applied exclusively to their front surfaces, from the interface with the reinforcing layer.

As materials for the mounting and intermediate adhesive layers, for example, a sticky adhesive based on polybutyl acrylate, or based on rubbers, as well as various thermoactive substances based on polyethylene, polypropylene, polyacetate, vinyl can be used. Assembly and / or intermediate adhesive layers can be made of the same type (brand) of adhesive material (the same brand of sticky adhesive or thermoactive material), and of different types (brands) of adhesive materials adapted for each type vibration-damping material of separate plane-sheet viscoelastic gaskets in order to provide acceptable adhesive bonds, mating surfaces of composite structures MAVShP with the surface of a damped vibro-noise technical object (by the surface of the vehicle body panel) that ensure effective vibration and noise damping, reliability, durability, etc.

A variety of technological options for the manufacture of the inventive device MAVShP. For example, according to one of the technological process flow diagrams, the reinforcing layer is used as the base support matrix of the formed modular composition with an intermediate adhesive layer deposited on its surface, on the surface of which mosaic groups of separate viscoelastic are mounted in an appropriate orderly manner using special equipment gaskets (see Fig. 8). According to the second technological variant implementation scheme (see Fig. 9), it is possible to use a spinneret block cassette containing orderly alternating (arranged preferably in a checkerboard pattern) supply channels of viscoelastic substances of at least two types (grades). After a metered ordered distribution of various types (grades) of viscoelastic substances on the surface of the reinforcing layer, a subsequent technological operation is carried out to form their flat-sheeted form as part of the corresponding modular composition of isolated flat-sheet viscoelastic gaskets of a given size, geometric shape and layer thickness. According to the third technological variant scheme (see Fig. 10), the reinforcing layer with the applied adhesive layer can be installed on top of a special flask, already filled in a certain ordered manner with the corresponding various types (grades) of viscoelastic substances endowed with different vibration-damping properties (regulated in predetermined limited working operational temperature ranges).

The geometric shapes and dimensions of the separate plane-sheet viscoelastic gaskets of each of the types (grades) of viscoelastic vibration damping substances in each of the individual groups can be different. The dimensions and the geometric shape of each of the separate plane-sheet viscoelastic gaskets in each of the groups can be identical, but different between the groups. The dimensions and the geometric shape of the separate flat-sheet viscoelastic gaskets of the same type (of the same brand), and of all types and brands in the composition of the modular composition, can be different.

A comparison of the known scientific and technical information and patent documentation on the priority date in the main and related sections of the MKI shows that the set of essential features of the claimed technical solution was not previously known, therefore, it meets the patentability condition of “novelty”.

The analysis of known technical solutions in this technical field showed that the inventive device MAVShP has features that are absent in the known technical solutions, and their use in the claimed combination of features makes it possible to obtain a new technical result, therefore, the proposed technical solution has an inventive step compared to the existing one prior art.

The proposed technical solution is industrially applicable, because can be manufactured industrially, efficiently, feasibly and reproducibly, therefore, meets the patentability condition “industrial applicability”.

Other features and advantages of the claimed invention will become apparent from the drawings and the following detailed description of the claimed IATS, where

figure 1 presents a fragment of the transverse and longitudinal section of the MASP installed on the thin-panel panel of the body of the ATC, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of two types (grades) of separate rectangular rectangular viscoelastic gaskets geometric shapes made from various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties, arranged in an orderly manner on the surface of the reinforcing layer in alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back fixing surface of the MABP, and the adhesive intermediate layer completely covers the back surface of the reinforcing layer MAVShP;

figure 2 presents a fragment of the transverse and longitudinal section of the MASP installed on the thin-panel panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of two types (grades) of separate rectangular rectangular viscoelastic gaskets geometric shapes made from various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties, arranged in an orderly manner on the surface of the reinforcing layer in alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer is applied exclusively to the rear mounting surfaces of the separate plane-sheet viscoelastic gaskets, and the adhesive intermediate layer - exclusively on their front surfaces, on the side of the reinforcing with Oja;

figure 3 presents a fragment of the transverse and longitudinal section of the MASP installed on the thin-panel panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of two types (grades) of separate octagonal viscoelastic gaskets geometric shapes made from various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties, are arranged in an orderly manner on the surface of the reinforcing layer in alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back fixing surface of the MABP, and the adhesive intermediate layer completely covers the back surface of the reinforcing layer MAVShP;

figure 4 presents a fragment of the transverse and longitudinal section of the MASP installed on the thin-panel panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of two types (grades) of separate triangular viscoelastic gaskets geometric shapes (such as isosceles rectangles) made of various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties by means of orderly arranged on the surface of the reinforcing layer in an alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back fixing surface of the MABP, and the adhesive the intermediate layer completely covers the back surface of the reinforcing layer MAVShP;

figure 5 presents a fragment of the transverse and longitudinal section of the MASP installed on the thin-panel panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of two types (grades) of separate trapezoidal viscoelastic gaskets geometric shapes made from various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties, we arrange x on the surface of the reinforcing layer in alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back fixing surface of the MABP and the adhesive intermediate layer is completely covers the back surface of the reinforcing layer MAVShP;

Fig. 6 shows a fragment of the transverse and longitudinal section of the MASP installed on the thin-sheet panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of three types (grades) of separate rectangular rectangular viscoelastic gaskets geometric shapes made from various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties, arranged in an orderly manner on the surface of the reinforcing layer in alternating order, preferably in a checkerboard pattern, and spatially spaced from each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back fixing surface of the MABP, and the adhesive intermediate layer completely covers the back surface of the reinforcing layer MAVShP;

Fig. 7 shows a fragment of the transverse and longitudinal section of the MASP installed on the thin-sheet panel of the vehicle body, containing in its structural composition a reinforcing layer, an adhesive intermediate layer and an adhesive mounting layer, a viscoelastic layer composed of four types (grades) of separate rectangular rectangular viscoelastic gaskets geometric shapes made of various types (grades) of vibration-damping materials with distinguishing physical and mechanical properties and various overall dimensions sizes orderedly arranged on the surface of the reinforcing layer in an alternating order, preferably staggered, and spatially spaced with each other with the formation of the corresponding air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets, while the adhesive mounting layer completely covers the back mounting surface of the MABP, and the adhesive the intermediate layer completely covers the back surface of the reinforcing layer MAVShP;

on Fig presents a schematic diagram of a possible implementation of the technological embodiment of manufacturing MABSS, in which on the surface of the reinforcing layer with a continuous intermediate adhesive layer deposited on it, mosaic-ordered, with the appropriate spatial distribution, using the appropriate technological (tool) equipment of the mounting surface distribution, the separate surface zones of the reinforcing layer are mounted separate flat-plate viscoelastic gaskets with images Niemi MAVSHP;

Fig. 9 is a schematic diagram of a possible implementation of a technological embodiment of manufacturing a MASBP, in which a spunblock cassette is used, with alternating predetermined geometric shapes and dimensions, feed channels of a viscoelastic vibration-damping substance of various types (grades) onto the surface of the reinforcing layer of the MASB;

figure 10 presents a schematic diagram of a possible implementation of a technological embodiment of manufacturing MABSS, in which a reinforcing layer with an applied intermediate adhesive layer is installed on top of the flask, suitably filled with various types (grades) of viscoelastic vibration-damping substances, with the formation of MABSS.

In the figures used the following numeric and letter designations:

1 - viscoelastic layer;

2 - reinforcing layer;

3 - adhesive intermediate layer;

4 - adhesive mounting layer;

5 - the first type (brand) of viscoelastic vibration-damping substance of separate plane-sheet viscoelastic gaskets of the viscoelastic layer MAVShP;

6 - the second type (brand) of a viscoelastic vibration-damping substance of separate plane-sheet viscoelastic gaskets of a viscoelastic layer MAVShP;

7 - the third type (brand) of a viscoelastic vibration-damping substance of separate plane-sheet viscoelastic gaskets of a viscoelastic layer MAVShP;

8 - the fourth type (brand) of a viscoelastic vibration-damping substance of separate plane-sheet viscoelastic gaskets of a viscoelastic layer MAVShP;

9 - supporting sheet panel;

10 - technological tooling for the manufacture of MAVShP;

11 - spinneret block cassette of an ordered dosed supply of various types (grades) of viscoelastic vibration-damping substances;

12 - channels of an orderly supply of various types (grades) of viscoelastic vibration-damping substances;

13 - flask, orderly filled with various types (brands) of viscoelastic vibration-damping substances;

_substituting h - the thickness of the viscoelastic layer MAVSHP;

t _s - air gaps formed between the ordering of the disposable opposed end surfaces of the separate plane-sheet viscoelastic gaskets of the viscoelastic layer.

The inventive MABBP contains a viscoelastic layer 1, a reinforcing layer 2, an adhesive intermediate layer 3, and an adhesive mounting layer 4. Moreover, these composite layers of the MABBP form a modular composition composed of a matrix support base of the reinforcing layer 2, on which, using the adhesive intermediate layer 3, ordered in a mosaic way, with the formation of the corresponding air gaps between opposite end surfaces, at least two groups (two families) of isolated flat true viscoelastic gaskets 5, 6, 7, 8 of predetermined geometric shapes, mainly triangular, quadrangular or regular polygonal geometric shapes, with their identical thicknesses, each of which is made of at least two different types (grades) of vibration damping substances (materials ), with different physicomechanical properties, characterized in a limited range of temperature ranges by specified values of the elastic modulus and loss coefficient, while the ordered placement, with By the adhesion coupling of viscoelastic gaskets 5, 6, 7, 8 with the surface of the reinforcing layer, an alternating, staggered, checkerboard pattern of their surface distribution is provided, and the resulting air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets 5, 6 mounted on the surface of the reinforcing layer, 7, 8, are in the range _of t = (0,1 ... 6,0) h _{taken, taken} where h - the thickness of the viscoelastic layers 1, wherein each of the dimensions of the projections faces kazh Doi of isolated ploskolistovyh viscoelastic pads is not less than 5 times the thickness h _taken viscoelastic layer 1 and the front surface area of each separate ploskolistovyh viscoelastic pads 5, 6, 7, 8 on the back surface of the reinforcing layer is 2,5 × 10 ^-6 ... 1 × 10 ^-2 m ² .

In order to impart a given bending stiffness to the reinforcing layer 2 of the MABP, with the corresponding concomitant effect of intensifying the dynamic processes of amplification of the amplitude values of shear deformations of the viscoelastic layer 1, the thickness of the reinforcing layer is chosen to be at least 0.1 of the thickness of the viscoelastic layer 1. The reinforcing layer 2 can also be made non-planar a geometric shape containing pronounced curved sections, while separate viscoelastic flat sheets 5, 6, 7, 8, located directly in the zones the bends of the reinforcing layer 2 may contain various types of compensating mechanical or thermal deformation elements, for example, in the form of appropriately made perforations or corresponding notches.

The projection area of the front surface of each of the separate plane-sheet viscoelastic gaskets 5, 6, 7, 8 of the viscoelastic layer 1 of the MABP onto the back surface of the reinforcing layer 2 should be in the range 2.5 × 10 ^-6 ... 1 × 10 ^-2 m ² . The lower limit (2.5 × 10 ^-6 m ² ) of this range is mainly limited by the technological problems of manufacturing and installing this type of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8 of the viscoelastic layer 1. At the same time, the upper limit of the range (1 × 10 ^-2 m) due to the need to achieve a given (acceptable) increase in vibration-damping efficiency (increase, in particular, the loss coefficient compared to a monolithic layer of a similar material of a viscoelastic layer 1, surface area which is equal to the total surface area of the isolated plane-sheet viscoelastic gaskets 5, 6, 7, 8, by no less than 10%), with a corresponding decrease in the specific surface weight of the viscoelastic layer 1 of the MABP.

To reduce the cost of expensive sticky adhesive or thermoactive substances, the adhesive assembly layer 4 of the MABP can only be applied to the back fixing surfaces of the separate plane-sheet viscoelastic gaskets 5, 6, 7, 8 of the viscoelastic layer, and the adhesive intermediate layer 3 can only be applied to their front surfaces , from the side of the reinforcing layer 2 (see figure 2).

Mounting 4 and / or intermediate 3 adhesive layers can be made of various types (grades) of adhesive materials (sticky adhesive or thermoactive), suitably selected (adapted) for each type (brand) of viscoelastic vibration-damping (substance) material used for separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, taking into account the achievement of the specified vibration-damping, technological, operational, cost and other requirements of the technical specifications for development (TK) and / or those production conditions (TU).

In the process of functioning of the noise-vibrational assembly and / or the automatic telephone exchange system, when dynamic vibrational excitation is applied to the supporting sheet-metal panel 9, its dynamic bending vibrational deformations occur, which occur together with the installed (adhesively fixed) on its surface MABSS. Due to the formation of various values of the dynamic (bending, shear) deformations of the composite layers of MABP, in its viscoelastic layer 1, predominantly dynamic tensile-compression and dynamic shear deformations occur. The reinforcing layer 2 of the MASBP, including a toughening function, is deformed (dynamically bent) by vibration amplitudes different from the amplitudes of the bending dynamic deformations of the carrier sheet 9 (including due to its spatial distance from the surface of the bending-oscillating carrier sheet 9 and the corresponding removal of the neutral axis of the cross section of the reinforcing layer 2 from the neutral axis of the cross section of the carrier sheet 9 by an amount equal to the thickness of the viscoelastic layer 1). As a result of this, it “dynamically restrains” (accordingly, additionally compresses or stretches) the adjacent surface zone of the mating viscoelastic layer 1, connected with it by an adhesive intermediate layer 3, with an external reinforcing layer 2. This type of “mismatched” dynamic process causes the appearance of concomitant additional shear dynamic deformations of the viscoelastic layer 1 along the thickness of its structure, characterized by the magnitude of the corresponding enhanced dynamic deformations shear material endowed with the property of high internal friction and dissipation of input mechanical (vibration) energy due to the internal friction of the layer structure, being converted into thermal energy. During dynamic "tensile-compression" deformations and dynamic "shear" deformations of a viscoelastic layer 1 arising in the composite structures of separate plane-sheet viscoelastic gaskets MAVPP, the processes of internal friction of viscoelastic structures of various types (grades) of vibration-damping materials in the volume of the structure of a viscoelastic layer 1, irreversible, are intensified dispersion of mechanical deformation (vibration) energy into heat, thereby providing increased vibration and noise damping. Thus, a more effective irreversible conversion of vibrational energy to thermal energy is realized in each of the small-sized isolated plane-sheet viscoelastic gaskets 5, 6, 7, 8.

In the embodiment of the claimed technical solution, the implementation of the viscoelastic layer 1 of at least two types (grades) of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, made of various types (grades) of vibration damping materials, with distinguishing physicomechanical properties, endowed with different vibration-damping characteristics, qualified with the given parameters of the dynamic elastic modulus and loss coefficient in limited temperature ranges, surface spaced between from one another to form respective air-gaps between their opposite end surfaces, intensifies the process flow of dynamic shear strain in the structure of the viscoelastic layer 1 in each of groups (families) separate ploskolistovyh viscoelastic pads 5, 6, 7, 8, are configured to predetermined operating temperature range. The specified increase in the amplitudes of dynamic shear deformations is the sum of the amplitudes of amplitudes of shear deformations in the mating zones of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, viscoelastic layer 1 with the back surface of the reinforcing layer 2 and the surface of the mating supporting thin-sheet panel 9 of the noise-absorbing unit and / or system Automatic telephone exchange. The occurrence of the aforementioned wide-temperature effects of intensification of dynamic processes is due to a more complete (cumulative) implementation of automatic telephone exchanges tuned to specified limited operating temperature operating modes, in the form of independent autonomous deformation vibrations of each of the groups (families) of the same type (of the same type and type of material) of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8 of the viscoelastic layer 1. Ultimately, with respect to the well-known technical solution adopted in As a prototype, the mechanism of converting mechanical vibrational energy into MASP in a wider operating temperature range with irreversible dissipation of it into thermal energy is being intensified to a large extent, thereby improving the vibration-damping properties and improving the acoustic qualities (acoustic comfort) of the ATS. The use of several different types (grades) of viscoelastic materials materials for the manufacture of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, endowed with different vibration-damping properties in different temperature ranges as part of the viscoelastic layer 1, allows you to expand the effective working (operational) temperature range of vibration-damping of ATC panels . The noted positive effect is achieved due to the appropriate tuned (adapted) selection of types (grades) of vibration damping materials endowed with specified effective vibration and noise damping properties in separate limited operating ranges of operating temperatures used for the manufacture of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, with an ordered manner mainly staggered placed (adhesive fixed) on the surface of the reinforcing layer 2 matrix base, forming a modular composition, with the formation of gap air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets 5, 6, 7, 8. In particular, it is possible to realize the viscoelastic layer 1 by three types of groups (families) of separate plane-sheet viscoelastic gaskets 5, 6, 7, 8, having effective vibration-damping properties in predetermined limited ranges of operating operating temperatures, equal, for example, 0 ... + 20 ° С, + 20 ... + 50 ° С and + 50 ... + 90 ° С. As a result, a sufficiently broad total effective working operating temperature range equal to 0 ... + 90 ° C can be achieved (formed), providing the necessary improvement in vibro-acoustic comfort in the driver's cab (passenger room) of the vehicle.

Compared with the well-known technical solutions for the use of MAWSS, the composite layers of which are arranged sequentially in layers, on top of each other, and are endowed with various (differing) physical and mechanical parameters (dynamic stiffness, characterized by dynamic elastic modulus, density, thickness, internal friction, characterized by loss coefficient) which in the process of performing both forced and intrinsic deformation bends during their exciting corresponding bending vibrations of the tonkolis carrier oic panel have corresponding negative compensating mutual restraining influence on each other, the attenuation deformation processes in the viscoelastic structures. For example, the location of the more elastic lower vibration-damping layer below the stiffer upper vibration-damping layer will weaken to a certain extent the transfer of deformation processes communicated by the upper rigid layer and, as a result, will weaken the efficiency of this vibration-damping process of this type of MAVP in a working high-temperature (+ 60 ... + 100 ° С ) the operating range of the node and / or automatic telephone exchange mechanism. Similarly, the use of a stiffer (less elastic) lower vibration-damping layer of the MABP, due to the toughening effect it exerts on the vibrating supporting thin-sheet panel (with the message of the corresponding vibration-damping effect), will have a weaker vibration-transmitting (vibration-excluding) effect on the external vibration-damping-damping layer deformation vibrations, with the naturally weakened effect of dispersion of vibrational energy.

The inventive IATT is characterized by a low specific surface weight and reduced cost, which is very relevant in the technical problems being solved of rigid weight and size and cost restrictions in the design of nodes and systems of automatic telephone exchanges. An improvement in the quality of adhesive mating is also achieved, eliminating the formation of bubble blistering and cracking of a viscoelastic layer mounted on the surface of the mating supporting sheet-metal panel, the potential for moisture accumulation in the formed cavities of the bubble blistering, which contributes to the appearance of corrosion foci of metal body panels. This promotes the use of small-sized isolated viscoelastic gaskets with the formation of air gaps. There is a possible decrease in the complexity of the installation of MABSS, especially in the areas of bends, undercuts, stiffeners, grooves (i.e., in pronounced convex-concave relief zones of supporting thin-sheet panels), over their entire surface or in separate local zones, without the use of additional technological operations ensuring proper reliable mating of the oncoming surfaces of the MAVShP and the damped panel of the vehicle body in the indicated convex-concave relief zones.

There are various technological variant schematic diagrams of the manufacture of the inventive IABP. For example, according to one of the alternative technological concepts (see Fig. 8), the reinforcing layer 2 is used as a carrier matrix as part of a modular composition with an intermediate adhesive layer 3 deposited on its surface, on the surface of which is mosaic using special technological tooling 10 ordered mounted separate ploskolistovye viscoelastic gasket 5, 6, 7, 8 (h identical thickness and are formed _of clearances t _s). According to the second principal technological variant scheme (see Fig. 9), it is possible to use a spinneret block cassette 11 with orderly alternating (preferably staggered) channels 12 for supplying viscoelastic substances of various types (grades). The wall thickness of the interfilter bridges in this case forms the size of the air gaps between the opposite end surfaces of the separate plane-sheet viscoelastic gaskets. The dimensions of the cross-section of the spunblock block cassette correspond to the dimensions of the reinforcing layer MAVShP, on which viscoelastic substances of various types (grades) are applied (injected, extruded and regulated by a dispenser). After a metered ordered distribution of various types (grades) of viscoelastic substances on the surface of the reinforcing layer, the corresponding technological operation of forming a flat-sheet form of a modular composition as a part of separate flat-sheet viscoelastic gaskets of a given thickness can be performed. According to the third principal technological variant diagram shown (see Fig. 10), the reinforcing layer 2 with the applied adhesive layer 3 can be installed on top of a special flask 12, already filled in a certain ordered manner with viscoelastic substances of 5 6 7, 8 different types (grades) endowed with different vibration-damping properties. After the procedure of adhesion stitching of the mating surfaces of the reinforcing layer and the separate plane-sheet viscoelastic gaskets, this type of integrated structure is excavated into the formed modular composition of the MABP. The flask 13 may be a rigid massive frame with integrated isolated cellular cavities of predetermined geometric shapes and dimensions, which serve for the corresponding filling, shaping and holding in it viscoelastic mixtures of various types (grades).

Of course, the technical solution presented in the description of the application for the invention is not limited to the specific structural and technological examples of its implementation described above, shown in the accompanying figures. Minor changes of various structural and / or technological design elements or materials used, of which these elements are made, or their replacement with technically equivalent ones that do not go beyond the scope of the claims indicated by the claims, also remain possible.

Claims (7)

1. A multilayer reinforced vibration-damping coating of a vehicle body panel, mainly a passenger car and a bus, consisting of a reinforcing layer, a viscoelastic layer, an adhesive intermediate layer and an adhesive mounting layer, characterized in that said composite layers of a vibration-damping coating form a modular composition composed of a matrix the carrier base of the reinforcing layer, on which, using the adhesive intermediate layer in an orderly, mosaic manner , with the formation of air gaps between opposite end surfaces, at least two groups of isolated plane-sheet viscoelastic gaskets of predetermined overall dimensions and geometric shapes, mainly triangular, quadrangular or regular polygonal geometric shapes, with their identical thicknesses, each of which is made of different of at least two types (grades) of viscoelastic vibration damping substances (materials) with different physical and mechanical properties The properties characterized by the values of the elastic modulus and loss coefficient specified in a limited temperature range, while the ordered placement and fixing, with the adhesive coupling of viscoelastic spacers with the surface of the reinforcing layer, provides for an alternating, mainly staggered order of their surface distribution, and the resulting air gaps between mounted on the surface of the reinforcing layer, the opposite end surfaces of the isolated plane tovyh viscoelastic pads are in the range _of t = (0,1 ... 6,0) h _{taken, taken} where h - the thickness of the viscoelastic layer, wherein each of the dimensions of the projections faces of each of the separate ploskolistovyh viscoelastic pads is not less than 5 times h exceeds _taken viscoelastic layer thickness, and the front surface of the projection area of each separate ploskolistovyh viscoelastic pads on the back surface of the reinforcing layer is 2.5 × 10 ^-6 ... 1 · 10 ^-2 m ^2. 2. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the thickness of the reinforcing layer is not less than 0.1 of the thickness of the viscoelastic layer. 3. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the reinforcing layer is made of a non-planar geometric shape with locally curved sections, while the separate plane-sheet viscoelastic gaskets mounted in the bending zones of the reinforcing layer contain perforations or notches. 4. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the geometric shapes and dimensions of the separate plane-sheet viscoelastic gaskets of each of the types (grades) of viscoelastic vibration-damping substances in each of the individual groups are different. 5. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the dimensions and geometric shape of each of the separate plane-sheet viscoelastic gaskets in each of the groups are identical, but differ between the groups. 6. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the dimensions and geometric shape of the separate plane-sheet viscoelastic gaskets, both of the same type (of the same brand) and of all types and brands, are different in the composition of the modular composition. 7. The multilayer reinforced vibration-damping coating according to claim 1, characterized in that the mounting and / or intermediate adhesive layers are made using various types (grades) of adhesive substances intended for each type (brand) of viscoelastic vibration-damping material used.

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