CN116623821A - Metal composite damper and device - Google Patents
Metal composite damper and device Download PDFInfo
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- CN116623821A CN116623821A CN202310811826.5A CN202310811826A CN116623821A CN 116623821 A CN116623821 A CN 116623821A CN 202310811826 A CN202310811826 A CN 202310811826A CN 116623821 A CN116623821 A CN 116623821A
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- 239000002905 metal composite material Substances 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims description 95
- 239000010959 steel Substances 0.000 claims description 95
- 229920001971 elastomer Polymers 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 22
- 238000005265 energy consumption Methods 0.000 abstract description 21
- 238000013016 damping Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004033 plastic Substances 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 description 20
- 238000013461 design Methods 0.000 description 12
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
The invention provides a metal composite damper and a device, comprising two constraint plates and a composite viscoelastic layer arranged between the two constraint plates, wherein a plurality of lead cores are arranged between the two constraint plates and the composite viscoelastic layer, and a limiting assembly is arranged between the two constraint plates. Under the condition of shear displacement, the invention generates shear displacement in two opposite directions by the plastic deformation of the lead core and the shear hysteresis deformation energy consumption of the composite viscoelastic layer, can provide larger initial rigidity and higher damping, has better resilience and moderate damping when stress is terminated, enhances the energy consumption effect of the damper, better ensures the stability of the integral structure provided with the damper, has better fatigue resistance under the action of long-term wind load, can generate shear hysteresis deformation for energy consumption under small displacement, has good energy consumption effect, and can ensure the safety of the main structure.
Description
Technical Field
The invention relates to the technical field of dampers, in particular to a metal composite damper and a device.
Background
As earthquakes frequently occur in recent years, energy dissipation and vibration reduction technologies are attracting more and more attention in civil engineering earthquake-resistant designs. Energy dissipation and vibration reduction techniques aim to reduce the shock response of a building structure and reduce the damage to the building structure from an earthquake by converting or dissipating energy between the structure and the earthquake. Energy-dissipating damping techniques have been widely used today, including the provision of energy-dissipating damping devices to reduce the seismic response of the structure.
The energy dissipation and shock absorption devices in the prior art can be basically divided into four main types according to the materials used: metal energy dissipater, friction energy dissipater, viscoelastic energy dissipater and lead viscoelastic energy dissipater; however, as engineering structures in the prior art are increasingly complex, the dampers need to dissipate as much of the energy of the seismic input into the structure as possible under the effect of the seismic event.
Disclosure of Invention
The invention aims to provide a metal composite damper which has excellent overall stability, repeatable working capacity and better energy consumption effect.
According to the purpose of the invention, the metal composite damper comprises two constraint plates and a composite viscoelastic layer arranged between the two constraint plates, wherein a plurality of lead cores are arranged between the two constraint plates and the composite viscoelastic layer, and a limiting component is arranged between the two constraint plates.
Further, the composite viscoelastic layer comprises at least one composite viscoelastic piece, the composite viscoelastic piece is formed by sequentially and crosswise combining rubber and a thin steel plate, and the composite viscoelastic piece is in vulcanization connection with the two constraint plates.
Further, the limiting assembly is a limiting sliding rail, the two restraining plates are arranged in a vertically staggered mode, and the upper ends and the lower ends of the two restraining plates are connected with the corresponding limiting sliding rail through bolts respectively.
Further, the limiting component is a friction component, the friction component comprises a friction plate and a friction plate, the friction plate is arranged on the outer side of the constraint plate, and the friction plate is arranged between the friction plate and the constraint plate and is fixed through bolts and disc springs.
Further, the constraint plate is provided with a plurality of lead grooves, and the lead penetrates through the composite viscoelastic piece and is fixed in the lead grooves on the constraint plate.
Further, a shear pin is arranged between the constraint plate and the composite viscoelastic piece, and a sliding panel is arranged between the limiting slide rail and the constraint plate.
Further, the composite viscoelastic member is arranged in a continuous or multi-segment form.
Further, the lead cores are arranged in a single row or in multiple rows, and the cross section of the lead cores is square, rectangular or circular.
Further, one of the constraint plates is provided with a sliding groove, the other constraint plate is provided with a plurality of through holes, and the bolts penetrate through the sliding groove and the through holes to connect the two constraint plates together.
Further, the number of the sliding grooves is multiple, and the sliding grooves are positioned on the same straight line or are arranged in parallel.
According to the technical scheme, under the condition of shearing displacement, through plastic deformation of the lead core and shearing hysteresis deformation energy consumption of the composite viscoelastic layer, the two constraint plates are subjected to shearing displacement in two opposite directions in the shearing displacement direction, larger initial rigidity and higher damping can be provided, better resilience and moderate damping are achieved when stress is terminated, the energy consumption effect of the damper is enhanced, and therefore the stability of the whole structure provided with the damper is better ensured, the safety of the damper in the use process is better, the damper has better fatigue resistance under the action of long-term wind load, the shearing hysteresis deformation energy consumption can be generated under the condition of small displacement, the energy consumption effect is good, and the safety of the main structure provided with the damper can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the back structure of embodiment 1 of the present invention;
FIG. 3 is a side view of embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of example 1 of the present invention;
FIG. 5 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 6 is a schematic view showing the back structure of embodiment 2 of the present invention;
FIG. 7 is a side view of embodiment 2 of the present invention;
fig. 8 is a cross-sectional view of embodiment 2 of the present invention.
In the figure: 1. a composite viscoelastic member; 2. a lead; 3. a first constraint steel plate; 4. a second constraint steel plate; 5. a limit sliding rail; 6. a lead core groove; 7. a shear pin; 8. a slip panel; 9. a lead core cover plate; 10. a friction plate; 11. a friction plate; 12. a disc spring; 13. a sliding groove.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in figures 1-4 of the drawings,
the metal composite damper comprises at least one composite viscoelastic piece 1, a plurality of lead cores 2, a first constraint steel plate 3, a second constraint steel plate 4 and two limit sliding rails 5, wherein the composite viscoelastic piece 1 is arranged between the first constraint steel plate 3 and the second constraint steel plate 4, and the composite viscoelastic piece 1 is connected with the first constraint steel plate 3 and the second constraint steel plate 4 through vulcanization; the first constraint steel plate 3 and the second constraint steel plate 4 are provided with a plurality of lead core grooves 6, and the lead cores 2 penetrate through the composite viscoelastic piece 1 and are fixed in the lead core grooves 6 on the first constraint steel plate 3 and the second constraint steel plate 4. The first constraint steel plate 3 and the second constraint steel plate 4 are arranged in a vertically staggered mode, and the upper end and the lower end of the first constraint steel plate 3 and the lower end of the second constraint steel plate 4 are connected with corresponding limiting sliding rails 5 through bolts respectively.
The limiting slide rail 5 is of an L-shaped or U-shaped structure, one end of the limiting slide rail 5 is connected with the second limiting steel plate 4 or the first limiting steel plate 3 through bolts by clamping the first limiting steel plate 3 or the second limiting steel plate 4, and pretightening force is applied to the other end of the limiting slide rail 5, so that the first limiting steel plate 3 and the second limiting steel plate 4 are connected together through the limiting slide rail 5.
In this embodiment, the number of the composite viscoelastic members 1 is preferably one, the composite viscoelastic members 1 are arranged between the first constraint steel plate 3 and the second constraint steel plate 4 to form a single-shear lead viscoelastic damper, and the lead cores 2 penetrate through the composite viscoelastic members 1 and are fixed in the lead core grooves 6 of the first constraint steel plate 3 and the second constraint steel plate 4, and the upper end and the lower end of the first constraint steel plate 3 and the lower end of the second constraint steel plate 4 are connected with the corresponding limit sliding rails 5 into a whole through bolts respectively.
In this embodiment, a shear pin 7 is further disposed between the first constraint steel plate 3, the composite viscoelastic member 1 and the second constraint steel plate 4, and a sliding panel 8 is further disposed between the limit slide rail 5 and the first constraint steel plate 3 or the second constraint steel plate 4.
In this embodiment, the composite viscoelastic member 1 is formed by sequentially intersecting and combining a material having damping characteristics such as a plurality of layers of rubber and a plurality of layers of steel sheet, and the composite viscoelastic member 1 may be arranged in a continuous or multi-stage form. The composite viscoelastic piece 1 is connected with the first constraint steel plate 3 and the second constraint steel plate 4 through vulcanization, the first constraint steel plate 3 and the second constraint steel plate 4 are respectively connected with the limiting slide rail 5 through a bolt connection mode, and the lead core 2 penetrates through the composite viscoelastic piece 1 and is mutually fixed with the lead core grooves 6 of the first constraint steel plate 3 and the second constraint steel plate 4 and is sealed through the lead core cover plate 9.
In this embodiment, the total number of the lead cores 2 on the first constraint steel plate 3 and the second constraint steel plate 4 is eight, the lead cores 2 can be in a single-row arrangement form or a multi-row arrangement form, and the length and the width of the first constraint steel plate 3 and the second constraint steel plate 4 can be changed according to actual requirements so as to change the use number and the arrangement mode of the lead cores 2 and the limit sliding rails 5; the production and the processing are more convenient, so the structural form flexibility of the damper is higher, and in the practical design, the damper can be ensured to have better energy consumption effect.
In this embodiment, the limiting slide rail 5 is connected with the first constraint steel plate 3 and the second constraint steel plate 4 by adopting a bolt connection mode, and the set limiting slide rail 5 constrains the deformation modes of the first constraint steel plate 3 and the second constraint steel plate 4. The end face of the limit sliding rail 5 is welded with the embedded part of the wall structure.
In this embodiment, the number of the lead cores 2 arranged in the shearing displacement direction of the first constraint steel plate 3 and the second constraint steel plate 4 can be flexibly adjusted according to the structural design requirement. The lengths of the first constraint steel plate 3 and the second constraint steel plate 4 can be adjusted in the non-shearing displacement direction according to the arrangement row number of the lead cores 2, namely, the lead cores 2 can be arranged in a single row or multiple rows. The lead core 2 has various shapes including square, rectangular, circular, and the like. The first constraint steel plate 3 and the second constraint steel plate 4 can adopt different design structures in the structural length design of the non-shearing displacement direction, and various connection schemes exist, including a welding scheme and a bolting scheme.
The metal composite damper is a displacement type metal composite damper which can be used for structures such as a frame and a shear wall, and the like, when the metal composite damper is used, under the condition of shear displacement, through plastic deformation of a lead core 2 and shear hysteresis deformation energy consumption of a composite viscoelastic piece 1, the metal composite damper is simple and reasonable, in the shear displacement direction, the first constraint steel plate 3 and the second constraint steel plate 4 generate shear displacement in opposite directions, can provide larger initial rigidity and higher damping, has better resilience and moderate damping when stress is terminated, and enhances the energy consumption effect of the damper, thereby better ensuring the stability of the whole structure provided with the damper, ensuring better safety in the use process, generating shear hysteresis deformation to consume energy under the action of long-term wind load, and ensuring the safety of the main structure provided with the damper.
According to the embodiment, through the use of the limiting slide rail 5, the number of sheared steel plates is reduced, steel saving is realized, weight is reduced, and the damper manufacturing is facilitated to a certain extent; the out-of-plane deformation of the first constraint steel plate 3 and the second constraint steel plate 4 is effectively limited through the use of the limiting sliding rail 5, and the constraint damper is subjected to shearing deformation, so that the energy consumption design is more accurate, and the stability of a member is greatly improved.
The limiting slide rail 5 of the embodiment is connected with the first constraint steel plate 3 and the second constraint steel plate 4 in a bolt connection mode, so that the installation of damper components is simplified, the components can be replaced quickly, and the construction and the installation are facilitated in actual engineering.
The first constraint steel plate 3 and the second constraint steel plate 4 of the embodiment can be welded with a structure or connected with a bolt through different structural designs, so that the steps of installing the damper and the structure are simplified, and the construction efficiency is high. The lead cores 2 can be arranged in a single row or a plurality of rows, different numbers, square, rectangular, circular and other arrangement forms, so that the energy consumption capability of the damper can be effectively improved, the lead cores 2 have dynamic recrystallization characteristics, and the service life and economic benefit of the damper can be effectively improved under the constraint action of the composite viscoelastic piece 1.
The composite viscoelastic member 1 can be arranged in a continuous or segmented manner, can maintain elastic deformation under a certain load, and can effectively improve the performance stability of the damper. The plastic deformation of the lead core 2 and the shearing hysteresis deformation of the composite viscoelastic piece 1 dissipate the energy of external load, so that the energy consumption capability is excellent, and the composite viscoelastic piece enters a yield stage under a small displacement; the composite viscoelastic piece 1 has better damping, certain restorability under the stress condition, and the lead core 2 has dynamic recrystallization characteristic, can effectively dissipate energy and absorb shock, and has repeatable working capacity.
Example 2
As shown in figures 5-8 of the drawings,
the utility model provides a metal composite damper, includes two piece at least compound viscoelastic pieces 1, multirow lead 2, first constraint steel sheet 3, second constraint steel sheet 4 and friction subassembly, and two compound viscoelastic pieces 1 set up between first constraint steel sheet 3 and second constraint steel sheet 4, and first constraint steel sheet 3 and second constraint steel sheet 4 link together through friction subassembly.
The friction component comprises a friction plate 10, a friction plate 11, a disc spring 12, a bolt and a nut; the friction plate 11 is arranged on the outer side of the first constraint steel plate 3, the friction plate 10 is arranged between the friction plate 11 and the first constraint steel plate 3, the first constraint steel plate 3 is provided with a sliding groove 13, the second constraint steel plate 4 is provided with a plurality of through holes, and the first constraint steel plate 3 and the second constraint steel plate 4 are aligned in a staggered mode so as not to influence each other under shearing deformation. A plurality of bolts respectively penetrate through the friction plate 11, the friction plate 10, the first constraint steel plate 3 and the second constraint steel plate 4 and are fixed through nuts, and disc springs 12 are arranged between the bolts and the first constraint steel plate 3 and between the nuts and the second constraint steel plate 4.
The first constraint steel plate 3 can be provided with a plurality of sliding grooves 13, can be multi-section sliding grooves 13 on the same straight line, can also be multi-section sliding grooves 13 parallel to each other, and the second constraint steel plate 4 can be provided with a plurality of groups of bolts, namely the same sliding groove 13 can be provided with a plurality of groups of bolt holes, and friction force can be increased under the same sliding displacement so as to improve friction force to do work.
The two composite viscoelastic pieces 1 are respectively connected with the first constraint steel plate 3 and the second constraint steel plate 4 at the upper and lower positions of the sliding groove 13 through vulcanization; the lead 2 penetrates the composite viscoelastic member 1 and is fixed to each other with the lead grooves 6 on the first constraint steel plate 3 and the second constraint steel plate 4 and sealed with the lead cover plate 9.
The friction component not only provides directional pressure between two constraint steel plates and constrains the two constraint steel plates to generate shear deformation for the damper by adopting a mode of bolting and applying pretightening force, but also provides pretightening force normal direction friction force for the damper and can consume energy through sliding displacement. Under the shearing displacement, the damper simultaneously utilizes the plastic deformation of the lead core 2, the shearing hysteresis deformation of the composite viscoelastic piece 1 and the friction force provided by the friction component to consume energy together through the sliding displacement, and is one of energy dissipation and shock absorption devices consisting of a plurality of effective energy dissipation mechanisms.
Because the existing lead viscoelastic damper is generally provided with three or more constraint steel plates or shearing steel plates, the embodiment is beneficial to reducing dead weight and facilitating assembly; in order to solve the problem of insufficient out-of-plane stiffness of the damper, which is possibly caused by only arranging two constraint plates, a friction component is arranged to improve the stiffness of the damper, the damper has the characteristic of friction force to do work and consume energy under the sliding displacement, and the plastic deformation of the lead core 2 and the hysteresis deformation of the composite viscoelastic piece 1 are utilized to effectively consume energy under the shearing displacement, so that the energy consumption mechanism of various materials is combined, and the damping force and the energy consumption capability of the damper are improved.
In this embodiment, the composite viscoelastic member 1 is formed by sequentially intersecting and combining a material having damping characteristics such as a plurality of layers of rubber and a plurality of layers of steel sheet. The composite viscoelastic member 1 may be arranged in a continuous or multi-segment form. Specifically, the composite viscoelastic member 1 may be natural rubber or a viscoelastic material with high damping, and the friction material may be one or more of polytetrafluoroethylene, brass, a brake pad, magnesium-aluminum alloy, inorganic asbestos, lead, polytetrafluoroethylene, and the like.
The length of the constraint steel plate in the shearing displacement direction can be adjusted according to design requirements, and the number of different lead cores 2 can be adjusted. The lead cores 2 can be designed into a single-row or multi-row arrangement form according to actual design requirements. According to the structural design length of the constraint steel plate in the non-shearing deformation direction, various design modes can be adopted, and different connection schemes are adopted with the structure. The lead core 2 has various arrangement shapes, namely, the lead core 2 can be provided in different shapes such as square, rectangle and round.
The shape of the friction plate 10, the shape of the friction plate 11, etc. in the friction assembly have various shapes including square, rectangular, circular, etc.
The embodiment has simple structure and definite energy consumption mechanism, on the premise that the bolt provides pretightening force to ensure that the damper avoids out-of-plane deformation, friction force in the normal direction of the bolt is also provided for doing work and consuming energy, meanwhile, the shearing plastic deformation of the lead core 2 and the shearing hysteresis deformation of the composite elastic piece are utilized for dissipating energy, multiple energy consumption mechanisms are integrated, and the working mechanism is simple and effective.
The embodiment can provide larger damping force and excellent energy consumption capability, and based on simultaneous cooperative energy consumption of various materials, the lead core 2 and the composite viscoelastic member 1 can provide larger shearing force for the damper, the friction assembly can provide larger friction force for the damper, can provide larger rigidity and better damping for the structure, and can effectively improve the stability of the structure. In the above embodiment, the lead core may also use a metal energy dissipation rod, and the same function as the lead core is achieved through the metal energy dissipation rod.
The constraint steel plate can be welded with the structure or connected with the structure through different structural designs, so that the steps of installing the damper and the structure are simplified, and the construction efficiency is high. The lead core 2 has dynamic recrystallization characteristic, the composite viscoelastic piece 1 can keep elastic deformation under a certain load, the friction plate 10 is easy to replace based on a simple friction assembly, and the device has excellent service life and economic benefit and repeatable working capacity.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The metal composite damper is characterized by comprising two constraint plates and a composite viscoelastic layer arranged between the two constraint plates, wherein a plurality of lead cores are arranged between the two constraint plates and the composite viscoelastic layer, and a limiting assembly is arranged between the two constraint plates.
2. The metal composite damper according to claim 1, wherein the composite viscoelastic layer comprises at least one composite viscoelastic member formed by sequentially intersecting and combining a rubber and a thin steel plate, and the composite viscoelastic member is vulcanized and connected with the two constraint plates.
3. The metal composite damper according to claim 2, wherein the limiting assembly is a limiting sliding rail, the two restraining plates are arranged in a vertically staggered mode, and the upper ends and the lower ends of the two restraining plates are respectively connected with the corresponding limiting sliding rail through bolts.
4. The metal composite damper according to claim 2, wherein the limit assembly is a friction assembly including a friction plate and a friction plate, the friction plate being disposed outside the constraint plate, the friction plate being disposed between the friction plate and the constraint plate and being fixed by bolts and disc springs.
5. A metal composite damper according to claim 3 or 4, wherein the constraining plate is provided with a plurality of lead slots, the lead extending through the composite viscoelastic member and being secured in the lead slots.
6. A metal composite damper according to claim 3, wherein a shear pin is provided between the constraining plate and the composite viscoelastic member, and a slip panel is provided between the limiting slide rail and the constraining plate.
7. The metal composite damper according to claim 5, wherein the composite viscoelastic member is arranged in a continuous or multi-stage form.
8. The metal composite damper according to claim 5, wherein the lead cores are arranged in a single row or in a plurality of rows, and the cross section of the lead cores is square, rectangular or circular.
9. The metal composite damper according to claim 4, wherein one of the constraint plates is provided with a sliding groove, the other constraint plate is provided with a plurality of through holes, and the bolts penetrate through the sliding groove and the through holes to connect the two constraint plates together.
10. The metal composite damper according to claim 9, wherein the number of the sliding grooves is plural, and the plural sliding grooves are positioned on the same straight line or are arranged in parallel with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811826.5A CN116623821A (en) | 2023-07-03 | 2023-07-03 | Metal composite damper and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310811826.5A CN116623821A (en) | 2023-07-03 | 2023-07-03 | Metal composite damper and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116623821A true CN116623821A (en) | 2023-08-22 |
Family
ID=87641995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310811826.5A Pending CN116623821A (en) | 2023-07-03 | 2023-07-03 | Metal composite damper and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116623821A (en) |
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2023
- 2023-07-03 CN CN202310811826.5A patent/CN116623821A/en active Pending
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