WO2008006283A1

WO2008006283A1 - A damping construction and the damping composite material thereof

Info

Publication number: WO2008006283A1
Application number: PCT/CN2007/001906
Authority: WO
Inventors: Xuejun Yin
Original assignee: Xuejun Yin
Priority date: 2006-07-06
Filing date: 2007-06-18
Publication date: 2008-01-17
Also published as: CN101101038A; CN101101038B

Abstract

A damping construction, which has a connector (2) that has concave convex structure is continuously or discontinuously disposed on a body (1), the connector is matched with a restricting body (4) that has corresponding concave convex structure, a damping material (6) is disposed between the connector and the restricting body. A damping composite material, which is consisted of the restricting body that has concave convex structure on the surface and a damping material, which is continuously or discontinuously arranged on the inner or outer surface of the restricting body.

Description

Damping structure and damping composite material

The present invention relates to the field of vibration and noise control, and more particularly to a structure for increasing the damping of a conventional member and a composite material to which the structure is applied. Background technique

The effects and hazards of vibration are almost ubiquitous. Vibration damages buildings, affecting the operation of precision instruments and equipment. Vibration and the noise they excite can also harm human health. Thin-walled components such as wheels, casings, car bodies, and boards on vehicles, machines, and electrical appliances are particularly susceptible to vibration, which may vibrate under the effects of machine rotation disturbance, impact disturbance, and airflow fluid disturbance. Vibration also generates noise; thin-walled members, long-span members, and extra-long members on bridges, buildings, and engineering structures are subject to large vibrations under the excitation of wind loads, human loads, traffic loads, and seismic loads. The system becomes an easy-vibration component. In fact, the easy vibration is relative. As long as the frequency of the excitation disturbance is close to the bending or torsional natural frequency of the member, the member will resonate, and this member is the vibration-prone member.

Practice has proved that increasing the self-damping ratio of the member can effectively reduce the vibration strength of the member. For example, the patent No. 0224202. 8 published on June 11, 2003 provides a method for reducing vibration and noise of a rail. The specific embodiment is that at least one set of restraining plates is provided on both sides of the member (rail). As a planar constrained damping structure, the structural damping of the whole component is improved by the additional constrained damping structure, thereby achieving the purpose of reducing the vibration strength and noise of the component. In such a structure, the damping of the constrained damping structure is substantially proportional to the contact area between the damping material and the member and the constraining plate, that is, approximately proportional to the effective working area of the damping material subjected to shear deformation. Therefore, in the above structure, since the plane constraint plate and the rail waist are limited in size, the effective working area of the damping material is limited, and the damping provided by the constrained damping structure is also limited, and the effect of the vibration damping and the noise reduction can be limited. Similarly, if the generally easy-vibration member adopts a constrained damping structure whose constraining plate is basically planar, it is also limited by the surface area of the component, and the ideal vibration-damping and noise-reducing effect cannot be achieved. Summary of the invention SUMMARY OF THE INVENTION The object of the present invention is to overcome the above drawbacks and to provide a structure which can expand the effective working area of the damping material to withstand shear deformation, and can effectively increase the damping of the vibration-prone member, that is, a constrained damping structure.

Another object of the present invention is to provide a damper composite material which can be attached to an easy-vibration member by applying the above structure, thereby effectively increasing the damping of the oscillating member.

The damping structure of the present invention is realized by continuously and intermittently fixing a connecting body with a concave-convex structure on the surface of the component body, the connecting body and the binding body with the corresponding convex-concave structure interacting with each other, the connecting body and the binding body Damping material is provided between.

The surface of the component body is fixedly provided with a connecting body with a rib and a groove, and the surface of the binding body is correspondingly provided with a groove and a rib which are matched with the groove, and a continuous or intermittent damping layer is provided between the surface of the connecting body and the surface of the binding body, and the damping layer The damping material in the material is a solid damping material or a liquid damping material. Solid damping materials include modified asphalt, high damping polyurethane, high damping rubber, soft metal lead tin, etc.; liquid damping materials are modified damping asphalt which is silicone oil and liquid at working temperature. When liquid damping material is used, the damping layer is surrounded. To be sealed, a spacer that maintains the thickness of the damping layer may be provided in the middle.

The thickness of the damping layer of the present invention in the normal direction of the rib surface is generally smaller than that of other directions. The direction in which the rib extends is perpendicular to the bending axis of the main bending mode of the member; when the vibration of the member body is mainly torsional, the direction in which the rib extends is perpendicular to the torsional axis of the member body. In order to better achieve the effect of vibration and noise reduction, a cavity may be provided inside the rib of the surface of the connecting body or/and the rib of the surface of the binding body, and the cavity may be filled with a damping material, or may be filled with a higher specific gravity. Material or bulk material composed of it. For a member body having a convex surface on its own surface, its surface protrusion can be regarded as a joint body, and at this time, the joint body is a part of the component body itself. The connector may be part of the component body itself or integrated with the component body. The connection between the connector and the component body can be soldering, riveting, bonding, card slot connection, fastener connection or fastener connection. The connecting body, the damping material and the restraining body can also be provided with a plurality of layers.

The damping composite material of the present invention is realized by a constraining body having a concave-convex structure and a damping material, and the damping material is continuously or intermittently disposed on the binding body; the damping composite material is composed of a connecting body each having a concave-convex structure And the binding body is compounded by the damping material, and the convex and concave structures between the two are matched with each other, and a damping layer is disposed between the two, and the damping material is a solid damping material or a liquid damping material; the surface of the connecting body and the surface of the binding body The concave-convex structure is preferably a rib and a groove, and a cavity is disposed inside the rib of the connecting body and the binding body, and a damping material is disposed in the cavity or a material with a higher specific gravity or a bulk material composed of the same; a restraining body or a connecting body is a plate, a tubular, a rod, a ribbed wire or a ribbed steel bar, such as a steel plate with a bulge, an angle steel, a round steel, a channel steel, I-shaped steel, cross steel, etc., the concave-convex structure thereon may be a longitudinal rib, a lateral rib, or a spiral or a dispersed arrangement. The surface of the damping composite material may be a flat surface or a curved surface similar to the curved surface of the vibration-prone member to be processed. The damping composite can also be used alone. In use, the damping material side or the connecting body side of the damping composite material is fixedly coupled to the surface of the vibration-prone member to be treated, thereby increasing the damping of the member to be treated.

In the damping structure of the present invention, the restraining body, the damping layer, the connecting body and the damping composite material composed thereof may be disposed not only on the outer surface of the member but also in the inner portion of the composite material (for example, the damping composite material is tubular) It may even be disposed inside the member (ie, the inner surface). When disposed inside the member, the binding body is located inside the damping layer, and the constraining layer is in direct contact with the member or is in contact with the member through the connecting body. When the member is vibrated and deformed, the deformation amount of the restraining body and the member is different, and the forced damping layer is sheared and deformed to consume vibration energy.

In the damper structure of the present invention, the stiffness of the restraining body and the connecting body should be greater than the rigidity of the damping material.

The invention significantly expands the contact and active area of the damping material with the component body and the restraining body by fixing the connecting body and the restraining body with the concave-convex structure on the surface of the component, and increases the constraint damping force to the curved neutral surface of the component. And the acting moment of the bending axis, thereby greatly increasing the structural damping of the member and increasing the damping ratio thereof, so that the application of the present invention can more effectively reduce the vibration or vocal intensity of the vibrating member. The damping composite material of the invention can be applied to an easy-vibration member composed of various materials such as various metals and non-metals, plastics, glass steel, wood structures, concrete structures, and the like, and the binding body and the connecting body can also adopt the above various materials. Highly adaptable and versatile, it can be used in vibrating components or vibration-prone parts in vehicles, machinery, electrical appliances and engineering structures, such as rails, wheels, electrical housings, cabins, decks, bridges, ball mill cylinders, car bodies, The aircraft grabs walls, wings, blades, sound insulation wall panels, door panels, floor slabs, etc., and the invention is easy to produce and operate, and has obvious effects of vibration reduction and noise reduction after use, and has good economic benefits, environmental benefits and social benefits. DRAWINGS

Figure 1 is a schematic diagram of the application of the structure of the present invention.

2 is a second schematic view of the application of the structure of the present invention. Figure 3 is a third schematic view of the application of the structure of the present invention.

Figure 4 is a fourth schematic view of the application of the structure of the present invention.

Figure 5 is a fifth schematic view of the application of the structure of the present invention.

Figure 6 is a sixth schematic diagram of the application of the structure of the present invention.

Figure 7 is a seventh schematic view of the application of the structure of the present invention.

Figure 3 is a schematic view of the application of the structure of the present invention.

Figure 9 is a schematic view of the application of the structure of the present invention.

Figure 10 is a schematic diagram of the application of the structure of the present invention.

Figure 11 is a schematic view of the application of the structure of the present invention.

Figure 12 is a schematic view showing the structure of the damping composite material of the present invention.

Figure 13 is a second schematic view of the structure of the damping composite material of the present invention.

Figure 14 is a third structural schematic view of the damping composite material of the present invention.

Figure 15 is a fourth structural schematic view of the damping composite material of the present invention.

Figure 16 is a fifth schematic view showing the structure of the damping composite material of the present invention.

Figure 17 is a sixth structural view of the damping composite of the present invention.

Figure 18 is a seventh structural schematic view of the damping composite of the present invention.

Figure 19 is a schematic view showing the structure of the damping composite material of the present invention. detailed description

Example 1

As shown in FIG. 1, the component body 1 is a plate-shaped vibrating casing shell of a machine, and its main vibration shape is - bending vibration, the bending axis is an X-axis, and the connecting body 2 is fixed on the component body 1 by an adhesive. The connecting body 2 is provided with a rib 3 spaced apart from each other, and the rib 3 and the rib 5 on the binding body 4 cooperate with each other, and the rib extends in the Y-axis direction (perpendicular to the X-axis direction). A continuous damping layer 6 is disposed between the connecting body 2 and the inner surface of the restraining body 4. The material of the damping layer is a high damping rubber which is stoned. The above structure may be continuously provided on the surface of the member body or may be provided at intervals.

When the member body is excited to vibrate, it is bent and deformed around the X axis. At this time, the damping material is subjected to forced shear due to the deformation of the restraining body and the member body, and a damping force is generated in the opposite direction to the relative deformation of the two, and the vibration is consumed. Energy, due to the ribs on the surface of the connecting body and the binding body, significantly enlarges the contact and active area of the damping material with the connecting body and the binding body, and increases the constraint resistance. The force acting on the curved neutral surface of the component body greatly increases the structural damping of the component body and increases the damping ratio. Therefore, during the vibration process, the damping material can more fully absorb the vibration energy of the component body, thereby effectively Reduce the strength of the vibration or vocalization of the component body.

The thickness of the damping layer in the normal direction of the rib surface is smaller than that in other directions, and the extending direction of the rib is perpendicular to the bending axis of the main bending mode of the member. The fixing method of the connecting body 2 and the component body can be selected according to different materials, such as welding, riveting, bonding, card slot connection, fastener connection or fastener connection. In this embodiment, only the bonding method is used for bonding. The example is explained.

In practical applications, the connecting body and the binding body are made of cast steel, and the cross-sectional shape of the rib on the connecting body and the binding body may be a regular shape such as a trapezoid, a rectangle, a triangle, or the like, or may be various irregular shapes. This example is described by taking a trapezoidal rib as an example. The damping material may be solid damping or liquid damping. When using a liquid damping material, care should be taken to seal at the end faces (not shown).

It should be noted that when the body area of the component is large, the phenomenon of vibration and bending deformation occurs in the X-axis direction and the Y-axis direction at the same time. Based on the principle described in the above embodiment, the structure may be added to the structure shown in FIG. The two-layer constrained damping structure has a rib extending perpendicularly to the rib direction of the first layer, so that the bending deformation of the bending axis is Y axis.

Example 2

As shown in FIG. 1, the difference from Embodiment 1 is that the connecting body 1 is simplified into a plurality of independent ribs, and are alternately welded and fixed to the ribs ⁵ on the surface of the member body 1 and the binding body ⁴ . Cooperate. At this time, the damping layer 6 is disposed between the outer surface of the component body 1 and the connecting body 2 and the inner surface of the binding body 4, and the damping material is provided with a solid damping material high damping polyurethane, and the implementation sequence is a two-component damping material mixed and mixed. After that, it is applied to the concave and convex surface of the restraint body, and then the restraining plate is pressed against the member, and the damping material is solidified to form a damping layer.

Example 3

As shown in Fig. 3, as an extension of the structure of the embodiment 1, the member body 1 in which the rib 7 is integrally cast on its own surface, the surface rib 7 can be regarded as a connecting body. The surface rib 7 of the member body itself is engaged with the rib 5 on the restraining body 4. At this time, a damping layer is disposed between the surface of the member body and the inner side surface of the body, and a solid damping material is provided in the damping layer to modify the damping asphalt.

When the member 1 or the restraining body 4 is a metal material, the connecting body ribs on the surface thereof can be casted Manufactured, machined or forged; when the member 1 or the constraining body 4 is aluminum, aluminum-magnesium alloy, thermoplastic material, the rib may be extruded or injection molded; when the member 1 or the restraint 4 is a concrete structure, the convex The ribs can be poured. For example, when the component body 1 is a bottom plate of a bridge box beam, the restraining body 4 may be a concrete preform having a uniformly distributed prismatic concave and convex surface on the upper surface thereof, and the extending direction of the ribs is along the longitudinal axis of the bridge, and is coated on the surface of the concave and convex ribs. It has a modified high-damping asphalt damping layer which is solid at working temperature. The asphalt is doped with fiber short filaments and the surface is bound with fibers, so that the concrete and the damping layer are firmly connected. The restraining body coated with the damping layer is used as the lost template, concrete. After the pouring is completed, a convex and concave corresponding to the prismatic irregularities of the restraining body is formed on the member body. When the bridge is vibrated by the dynamic load of the vehicle, the vibration energy of the bottom plate of the bridge with higher damping ratio is absorbed by the damping, and the vibration amplitude and noise are greatly reduced.

Compared with the first embodiment, one of the differences of the embodiment is that the connecting body 1 and the member 1 are integrally formed, and the construction unit is simple, and the connecting body and the member body are firmly combined.

Example 4

As shown in FIG. 4, the component body 1 is a generator base, and a connecting body 2 firmly connected with the component body is disposed on the surface of the component body 1, and the connecting body 2 is provided with a rib 3, a rib 9 and a groove 8 for restraining The inner surface of the body 4 is correspondingly provided with a rib 5, a groove 10 and a rib 11 which are fitted thereto, and a gap between the outer surface of the joint and the inner surface of the restraining body constitutes a damper chamber in which the damping material 6 is disposed. The damping material 6 is a liquid damping material silicone oil. Therefore, a sealing member 15 is disposed at the end surface to close the damping chamber. In order to ensure the thickness of the damping layer is constant, a distance member 16 is also disposed in the damping chamber.

Example 5

As shown in Fig. 5, the component body 1 in the present embodiment is a bridge bottom plate, which differs from the first embodiment in that a cavity is provided in the middle of the rib 3 and the rib 5, and the cavity I ^{2 is} filled in the cavity. By using this method, the weight of the component body can be effectively increased, and the higher mass can provide inertial impedance, and the friction between the sand particles can provide damping, thereby further improving the vibration resistance of the component body. In practical applications, a damping material or other non-damping material with a relatively high specific gravity or a bulk material composed thereof, such as lead, iron ore, waste iron pellets, etc., may also be provided in the cavity, and the same effect can be achieved.

Example 6

In addition to the profile, the connecting body and the restraining body can also use the plate to pass through stamping or bending. As shown in FIG. 6, the component body 1 is a train car body, and the plate material is cut and bent into a connecting body 2 with a boss and a restraining body 4, and is disposed in a gap between the connecting body and the restraining body. The damping material 6 and the above structure are fixedly disposed on the surface of the component body 1, which can effectively increase the damping of the floor of the car, and reduce vibration and noise during operation.

Example 7

As shown in Fig. 7, this embodiment differs from the embodiment 6 in that iron ore 12 is filled in a chamber formed by the bent portion of the connecting body 2 and the surface of the member body 1. Of course, it is also possible to use a damping material or other material having a relatively high specific gravity or a constituent material thereof.

Example 8

As shown in FIG. 8, for a component body 1 of a ship deck having a large vibration, a plurality of damping materials 6 are disposed outside the component body 1 by using a ribbed connecting body 2 and a restraining body 4, such that the structure of the component body 1 The damping will be further improved, which will help to absorb the vibration energy more quickly and weaken the vibration strength of the component body. If the rib directions of the two layers are arranged perpendicular to each other, the vibration bending of the entire raft plane can be suppressed.

Example 9

' When setting up the multi-layer damping material, in order to simplify the operation process and save the joint material, as shown in Fig. 9, the centrally located restraint body and the connecting body can be integrated into one, and become the new intermediate restraint body 14, which can also achieve the same. effect.

Example 10

The restraining body of the damping structure of the present invention may also be placed inside the component body. As shown in FIG. 10, the ribbed steel bar is used as the about winter body 4, and the rib portion thereof is equivalent to the rib 5 of the restraining body, and the solid damping material 6 and the connecting body 2 are disposed outside the ribbed steel bar, and the above structure is It is placed in the component body 1 made of concrete, so that the structural damping of the component body 1 is improved. The solid damping material 6 is a modified fixed asphalt.

In practical applications, the connection between the concrete and the damping material can be omitted depending on the use, and the same effect can be achieved. As the additional steel bar that does not bear the static load, the damping composite steel bar described in this embodiment is placed in the steel mesh plate in the same manner as the ordinary steel bar in use, and the construction method is the same.

Example 11

The damping structure of the present invention may also be cylindrical, as shown in FIG. The cylindrical structure with the ribs 5 is provided with a damping material 6 on the inner surface thereof, the damping material is soft metal tin, and then the concrete is poured into the structure, and the concrete body 1 is solidified. When the member body 1 is subjected to vibration deformation, the amount of deformation of the restraining body 4 and the member body 1 is different, and the forced damping material 6 is shear-deformed to consume vibration energy.

In the application, the same effect can be achieved by providing a connecting body between the body 1 and the damping material. In order to strengthen the strength of the member body, a skeleton (not shown) made of ordinary steel bars and the damped composite steel bars described in Embodiment 10 may be disposed inside the member body during construction. In order to strengthen the joint strength between the damping layer and the concrete layer, fibers may be incorporated into the asphalt and partially protruded from the surface (not shown) to be firmly bonded to the concrete.

The above discloses several specific application examples of the structure for increasing the damping of the vibration-prone member of the present invention. Similarly, when the vibration of the component body is mainly caused by the distortion, the extension of the rib of the connecting body and the rib of the binding body is obtained. The direction may be perpendicular to the torsion axis of the main twisting direction of the member body.

Example 12

As shown in Fig. 12, the damping composite material of the present invention is bonded and bonded by a connecting body 2 having a rib 3 and a restraining body 4 having a rib 5 and a damping material 6 provided therebetween. During processing, it should be noted that the thickness of the damping material in the normal direction of the rib surface is smaller than that in other directions.

According to the different materials of the connecting body and the restraining body and the shape of the damping material, the connecting body and the restraining body are coupled to each other in addition to the damping material, and can be firmly connected by other joints at a certain distance between the edge and the middle, such as welding and riveting. Various connection methods such as card slot connection, fastener connection or fastener connection. When the damping material is liquid damped, the ends of the members of the present invention need to be sealed (not shown).

When in use, according to different engineering application objects, the damping composite plate of the present invention is properly processed and then fixed on the surface of the vibration-prone member by welding, riveting, card slot connection, bonding, fastener connection or fastener connection. Therefore, the acting moment of the restraining damping force on the curved neutral surface of the vibrating member can be enlarged, thereby greatly increasing the structural damping of the vibrating member and increasing the damping ratio thereof, so that when the vibrating member vibrates, the damping material can be more sufficient. The vibration energy is absorbed, thereby effectively reducing the strength of the vibration or sound of the vibration-prone member. When applied to a vibrating machine, a machine casing or the like with a relatively large flat vibrating member, the member of the present invention can be cut into a flat plate of a corresponding size or combined and directly fixed on the vibrating member; , masts, wheels, etc. with curved surfaces When the member is vibrated, the damping composite plate of the present invention can be crimped into a corresponding sheet shape, a tubular shape or a ring shape and then fixed on the vibration-prone member, which can achieve a very remarkable effect. Further, the arrangement of the damper composite panel of the present invention on the surface of the vibration-prone member may be continuous or intermittent.

In practical applications, the cross-sectional shape of the protrusions on the connecting body and the constraining body may be a regular shape such as a trapezoidal shape, a rectangular shape, or the like, or may be an irregular shape composed of a straight line or a/arc.

Example 13

As shown in FIG. 13, the damper composite material of the present invention has a ribbed steel bar as the restraining body 4, and the rib portion thereof can be equivalent to the rib 5 of the restraining body, and the restraining body 4 and the connecting body 2 are integrally combined by the damping material 6. The rib 5 cooperates with the rib 3 on the connecting body.

Example 14

The damping composite material of the present invention as shown in FIG. 14 is composed of a joint body 1, a restraining body 4 and a damping material 6 therebetween, which is different from the embodiment 12 in that a rib 3 is provided on the joint body 2 A rib 9 is further provided, and the rib 3 is further provided with a groove 8 . Correspondingly, the rib 5 and the rib 11 are arranged on the binding body 4 , and the groove 10 is arranged on the rib 5 . This can further increase the effective working area of the connecting body and the restraining body to contact and act with the damping material, and increase the damping ratio of the member.

Example 15

As shown in Fig. 15, the damper composite panel of the present invention, the connecting body 2 and the restraining body 3 are each formed of an aluminum alloy profile, which is different from the embodiment 12 in that the ribs of the connecting body 1 and the restraining body 3 have cavities inside. The cavity is filled with the sub-12. In practical applications, other high-specific gravity materials or bulk materials such as lead, iron ore, and waste fine iron pellets may be disposed in the cavity, and the same effect can be achieved.

The embodiment has the advantages of high rigidity, high damping, smooth surface and good sound insulation effect, and can be used as a skeleton of a high-grade soundproof door, a sound insulation board of a concert hall, or superimposed with a gypsum board.

Example 16

As shown in Fig. 16, the damper composite panel of the present invention has a connecting body 2 and a restraining body 3 which are bent or stamped by a steel plate, and have a concave rib, and a damping material 6 is disposed between the connecting body and the restraining body. Compared with extruded profiles, the cost is even higher.

Example 17

The damper composite panel of the present invention shown in FIG. 17 is provided with a panel 13 which is firmly coupled to the connecting body 2 and the restraining body 4 via a resistor 在, respectively, on the basis of the member described in the embodiment 16. The bent portion of the connecting body 2 and the restraining body 4 forms a chamber with the surface of the clamping plate, and the iron ore 12 is disposed in the chamber, so that the vibration damping effect can be better. If the foamed material is filled in the chamber, high frequency noise can be eliminated. Of course, other materials with a higher specific gravity or bulk materials thereof can also be used here. The damper composite plate of the embodiment has high rigidity, high bearing capacity, is not easily deformed, and the surface is flat and beautiful.

Example 18

The damper composite panel of the present invention as shown in FIG. 18 is composed of a restraining body 3 and a damping layer 6. The restraining body 3 is bent or stamped by a steel plate, and has a concave rib. The damping layer is continuously disposed on the surface thereof and is solid. Damping material Highly damped modified asphalt board, the asphalt is blended with fibers and partially protrudes from the surface (not shown) to be firmly bonded to the concrete. The composite damper plate can be used as a lost template, and is directly poured onto the surface of the vibration-prone member during concrete construction. After the concrete is poured, the convex and concave portions corresponding to the prism-shaped irregularities of the restraining body are formed on the member body. For a secure connection, anchoring bolts or anchoring ribs (not shown) may be provided on the restraining body at intervals along the edges and in the middle.

Example 19

As shown in Fig. 19, the damper composite panel of the present invention can be provided with more than one layer of damping material 6 between the connecting body 2 and the restraining body 4 by providing an intermediate restraint body 14 having projections on both sides.

In fact, as long as the damping layer surface or the connecting body surface of the damping composite material of the present invention is firmly coupled with the surface of the member body to be treated, the damping structure of the present invention can be realized, thereby achieving the purpose of improving component damping, vibration damping and noise reduction.

The damper structure and the damper composite material of the invention are simple and practical, easy to produce and install, and have obvious effects of increasing structural structure damping, good vibration and noise reduction effects, excellent economic and environmental effects, and can be widely applied to transportation, Various fields such as electricity, manufacturing, and construction.

Claims

Claim

A damping structure characterized in that a connecting body having a concave-convex structure is fixedly disposed continuously or at intervals on a surface of the body of the member, and the connecting body and the binding body having a corresponding convex-concave structure cooperate with each other.

5 Damping material is placed between the connector and the constraining body.

The damper structure according to claim 1, wherein the surface of the component body is fixedly provided with a connecting body having a rib and a groove, and the surface of the binding body is correspondingly provided with a groove and a rib which are matched with the connecting body. A continuous or intermittent damping layer is disposed between the surface and the surface of the restraining body, and the damping material in the damping layer is a solid damping material or a liquid damping material.

0. The damper structure according to claim 2, wherein the damping layer has a thickness in the normal direction of the rib surface that is smaller than the other directional dimensions.

4. The damper structure according to claim 2, wherein the rib of the surface of the connecting body or/and the rib of the inner surface of the restraining body are provided with a cavity, and a damping material or a material with a high specific gravity is disposed in the cavity or It consists of bulk material.

5. A damping structure according to claim 2, characterized in that the direction in which the ribs extend is perpendicular to the bending axis or torsional axis of the main bending deformation of the component body.

6. Damping structure according to claim 1, characterized in that the connecting body is part of the component body itself or integrated with the component body.

7. Damping structure according to claim 1, characterized in that the connection of the connecting body to the component body is by welding, riveting, bonding, card slot connection, fastener connection or fastener connection.

The damper structure according to claim 1, wherein the connecting body, the damping material, and the restraining body are provided in a plurality of layers.

A damping composite material characterized in that it is composed of a constraining body having a concave-convex structure on the surface and a damping material, and the damping material is continuously or intermittently disposed on the inner or outer surface of the constraining body. 5

The damping composite material according to claim 9, wherein the binding body and the connecting body with the concave-convex structure are compositely connected by a damping material, and the convex and concave structures between the two are matched with each other, and damping is provided between the two. The layer, the damping material is a solid damping material or a liquid damping material.

11. The damping composite according to claim 10, wherein the concave and convex structures on the surface of the connecting body and the binding body are ribs and grooves, and the inside of the ribs of the connecting body and the binding body are provided with 0 cavity, empty A damping material or a material having a relatively high specific gravity or a bulk material composed of the same is disposed in the cavity.

12. Damping composite according to claim 9 or 10, characterized in that the constraining body or the connecting body is in the form of a plate, a tube, a rod, a ribbed wire or a ribbed bar.