CN114197677A - Viscous damper based on displacement amplification - Google Patents
Viscous damper based on displacement amplification Download PDFInfo
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- CN114197677A CN114197677A CN202111611105.7A CN202111611105A CN114197677A CN 114197677 A CN114197677 A CN 114197677A CN 202111611105 A CN202111611105 A CN 202111611105A CN 114197677 A CN114197677 A CN 114197677A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 73
- 230000003321 amplification Effects 0.000 title claims abstract description 71
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 238000013016 damping Methods 0.000 claims description 26
- 230000007704 transition Effects 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 13
- 238000005265 energy consumption Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
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- 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
Abstract
The invention discloses a viscous damper based on displacement amplification, which comprises: the auxiliary cylinder, the main cylinder, the piston guide rod, the piston, the transmission assembly and the displacement amplification cylinder body; the auxiliary cylinder is fixedly connected with the main cylinder; one end of the piston guide rod extends into the auxiliary cylinder, and the other end of the piston guide rod penetrates through the main cylinder and extends into the displacement amplification cylinder body to be movably connected with the transmission assembly; the piston is fixed on a piston guide rod in the main cylinder; the main cylinder is fixedly connected with the displacement amplification cylinder body; the invention designs a novel displacement amplification viscous damper which does not need a displacement amplification arrangement mechanism or an amplification device to improve the performance, and the purpose of displacement amplification can be achieved only by the damper.
Description
Technical Field
The invention relates to a damper, in particular to a viscous damper based on displacement amplification.
Background
Compared with the traditional structural seismic resistance method, which resists the seismic action by strengthening the seismic performance of the structure, the energy-consuming and shock-absorbing technology is proved to be an effective structural control method as a branch of passive control, and the energy-consuming device is used for generating deformation or displacement to consume or absorb the energy input into the structure to reduce the seismic reaction of the structure, so that the method has the advantages of safety, economy and the like.
The viscous damper is a speed type damper and can be applied to energy dissipation and shock absorption design and reinforcement transformation of a structure, and the control mechanism mainly consumes part of vibration energy of the structure in a heat mode through the viscous effect of a damping medium, so that the vibration and deformation of the structure are reduced, and the purpose of protecting the structure and components is achieved. The general expression of the damping force calculation formula of the viscous damper is as follows:
F＝cvα(t)
where F is the damping force, c is the coefficient associated with the viscous damper structure, v (t) is the relative velocity of the two ends of the damper at time t, and α is the velocity index. And the velocity can be expressed as:
the energy consumption of the damper is the work done by the damping force, and can be expressed as:
the above formula is an energy consumption formula of the viscous damper, c is generally a constant, and the larger the displacement is, the larger the speed is, and the larger the energy consumption of the viscous damper is in a certain time. Therefore, domestic and foreign scholars put forward various viscous damper arrangement methods and novel damper components with displacement amplification functions in a mode of combining a mechanical amplification principle and a traditional damper. If the damper displacement is amplified by a factor of η by some means, its energy dissipation capability is:
the above formula shows that after the displacement of the viscous damper is amplified by eta, the energy consumption capability of the viscous damper is amplified by eta1+αThe amplitude of the increase in energy consumption will theoretically depend on the magnitude of the displacement amplification factor η. Conventional damper arrangementIncluding diagonal arrangements, chevron arrangements, wall arrangements, toggle arrangements, scissor arrangements, etc., wherein the diagonal arrangements provide a reduction in the displacement amplification factor η of the viscous damper, as compared to toggle and scissor arrangements which are effective in increasing the displacement amplification factor. Besides, the energy consumption performance of the damper is improved through a gear amplification principle and the like.
In summary, the conventional viscous damper needs to be implemented by changing the arrangement of the damper in the structure in order to realize the amplification of the energy consumption capability, and the use function of the building can be influenced in some cases. In addition, most of the novel viscous dampers have complicated internal structures, difficult processing and higher manufacturing cost.
Disclosure of Invention
Aiming at the defects in the prior art, the viscous damper based on displacement amplification provided by the invention solves the problems that the traditional viscous damper needs to be realized by changing the arrangement of the damper in the structure in order to realize the amplification of the energy consumption capacity, and the use function of a building can be influenced under certain conditions.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: a displacement amplification based viscous damper comprising: the auxiliary cylinder, the main cylinder, the piston guide rod, the piston, the transmission assembly and the displacement amplification cylinder body;
the auxiliary cylinder is fixedly connected with the main cylinder; one end of the piston guide rod extends into the auxiliary cylinder, and the other end of the piston guide rod penetrates through the main cylinder and extends into the displacement amplification cylinder body to be movably connected with the transmission assembly; the piston is fixed on a piston guide rod in the main cylinder; the main cylinder is fixedly connected with the displacement amplification cylinder body.
Further, the master cylinder is filled with a damping medium.
The beneficial effects of the above further scheme are: due to the movement of the piston rod, the damping medium is thus compressed for dissipating the kinetic energy.
Furthermore, the piston is provided with a damping hole, and the damping hole is communicated with the space in the main cylinder.
The beneficial effects of the above further scheme are: during the movement of the piston guide rod, the damping medium is extruded and slowly passes through the damping hole, so that the movement energy is dissipated.
Further, the master cylinder is provided with a first sealing device and a second sealing device;
the first sealing device is positioned at one end in the main cylinder, and the second sealing device is positioned at the other end in the main cylinder.
The beneficial effects of the above further scheme are: the first sealing means and the second sealing means are used to prevent the damping medium from leaking.
Further, a pulley is arranged on the part of the piston guide rod in the displacement amplification cylinder body;
a pair of guide rails is arranged in the displacement amplification cylinder body; the pulley is matched with the guide rail.
The beneficial effects of the above further scheme are: the pulley and the guide rail are matched to realize the up-and-down movement of the piston guide rod.
Further, the transmission assembly includes: a connecting rod and a force transmission guide rod;
one end of the connecting rod is movably connected with one end of the piston guide rod, and the other end of the connecting rod is movably connected with one end of the force transmission guide rod.
Further, still include: a first hinge lug and a second hinge lug;
the first hinge lug is fixed at one end of the displacement amplification cylinder body; the second hinge lug is fixed on the part of the force transmission guide rod extending out of the displacement amplification cylinder body.
Furthermore, a transition steel pipe and a flexible material are fixedly arranged in the auxiliary cylinder; the flexible material is positioned in the transition steel pipe; the transition steel pipe and the flexible material are sleeved outside the piston guide rod.
The beneficial effects of the above further scheme are: the transition steel pipe and the flexible material are sleeved outside the piston guide rod to stabilize the motion of the piston, and the flexible material is used for reducing the friction between the transition steel pipe and the piston guide rod.
Furthermore, a steel ring is fixed outside the main cylinder, and a bolt is fixed on the steel ring.
Furthermore, a transition steel pipe and a flexible material are sleeved on the force transmission guide rod; the flexible material is located within the transition steel tube.
The beneficial effects of the above further scheme are: the transition steel pipe and the flexible material are sleeved outside the force transmission guide rod to stabilize the movement of the force transmission guide rod, and the flexible material is used for reducing the friction between the transition steel pipe and the force transmission guide rod.
In conclusion, the beneficial effects of the invention are as follows:
1. the viscous damper with the displacement amplification mechanism is designed by utilizing the mechanical principle of chain rod motion, has simple structure, simple installation and lower cost, is suitable for energy dissipation, shock absorption, reinforcement and reconstruction of various building structures such as concrete structures, steel structures, wood structures, combined structures and the like, and can be matched with various arrangement modes such as herringbone, knuckle-joint type and scissor type arrangement.
2. Compared with the traditional viscous damper, the energy consumption capacity of the invention is higher, thereby ensuring that the energy input to the structural system in the earthquake process is smaller than the energy comprehensively dissipated by the structure and the damper. Meanwhile, according to building earthquake-resistant design specifications (GB5011-2010), the effective damping ratio of the viscous damper added to the structure is positively correlated with the work sum of the damper in one cycle. In addition, the service life is long, the main cylinder body is convenient to disassemble and replace, and the device has wide popularization space.
Drawings
FIG. 1 is a schematic structural diagram of a viscous damper based on displacement amplification;
FIG. 2 is a front view of a viscous damper based on displacement amplification;
FIG. 3 is a side view of a viscous damper based on displacement amplification;
FIG. 4 is a top view of a viscous damper based on displacement amplification;
FIG. 5 is a schematic view of a displacement amplification system;
FIG. 6 is a graph of magnification factor versus angle;
figure 7 is a detail view of the piston guide and the force transmission guide;
FIG. 8 is a detail view of the piston guide rod connected to the guide rail and the connecting rod, respectively;
FIG. 9 is a schematic structural view of dampers arranged in a chevron pattern;
FIG. 10 is a schematic view of the damper in a scissor-type arrangement;
wherein, 1, the auxiliary cylinder; 2. a transition steel pipe; 3. a first sealing device; 4. a master cylinder; 5. a damping medium; 6. a damping hole; 7. a piston guide rod; 8. a bolt; 9. steel rings; 10. a first hinge lug; 11. a flexible material; 12. a piston; 13. a second sealing device; 14. a pulley; 15. a guide rail; 16. a connecting rod; 17. a force transfer guide bar; 18. a second hinge lug; 19. the displacement amplifies the cylinder block.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1 to 3, a viscous damper based on displacement amplification includes: the device comprises an auxiliary cylinder 1, a main cylinder 4, a piston guide rod 7, a piston 12, a transmission assembly and a displacement amplification cylinder 19;
the auxiliary cylinder 1 is fixedly connected with the main cylinder 4; one end of the piston guide rod 7 extends into the auxiliary cylinder 1, and the other end of the piston guide rod passes through the main cylinder 4 and extends into the displacement amplification cylinder body 19 to be movably connected with the transmission assembly; the piston 12 is fixed on the piston guide rod 7 in the main cylinder 4; the main cylinder 4 is fixedly connected with a displacement amplification cylinder body 19. The master cylinder 4 is filled with a damping medium 5, and in this embodiment, the damping medium 5 is made of a silicone oil material with good viscosity-temperature characteristics. The secondary cylinder 1 and the main cylinder 4 are both cylindrical in shape.
The piston 12 is provided with a damping hole 6, and the damping hole 6 is communicated with the space in the main cylinder 4. The piston guide rod 7 drives the piston 12 to move axially, and the auxiliary cylinder 1 provides enough movement space for the piston guide rod 7.
The master cylinder 4 is provided with a first sealing device 3 and a second sealing device 13; the first sealing means 3 is located at one end within the master cylinder 4 and the second sealing means 13 is located at the other end within the master cylinder 4.
In the present embodiment, the material of the first sealing means 3 and the second sealing means 13 is resin for preventing the damping medium 5 from leaking out.
The part of the piston guide rod 7 in the displacement amplification cylinder 19 is provided with a pulley 14; a pair of guide rails 15 are arranged in the displacement amplification cylinder body 19; the pulley 14 cooperates with a guide rail 15.
The transmission assembly includes: a connecting rod 16 and a force transmission guide rod 17;
one end of the connecting rod 16 is movably connected with one end of the piston guide rod 7, and the other end of the connecting rod is movably connected with one end of the force transmission guide rod 17.
This attenuator still includes: a first hinge lug 10 and a second hinge lug 18;
the first hinge lug 10 is fixed at one end of the displacement amplification cylinder 19; the second hinge lug 18 is fixed on the part of the force transmission guide rod 17 extending out of the displacement amplification cylinder 19.
A transition steel pipe 2 and a flexible material 11 are fixedly arranged in the auxiliary cylinder 1; the flexible material 11 is positioned in the transition steel pipe 2; the transition steel pipe 2 and the flexible material 11 are sleeved outside the piston guide rod 7.
A steel ring 9 is fixed outside the main cylinder 4, and a bolt 8 is fixed on the steel ring 9. In this embodiment, the steel ring 9 can be fixedly connected with the main cylinder 4 by welding, and 6 bolts 8 are pre-arranged on the steel ring 9 uniformly, as shown in fig. 4, and the bolts 8 are used for fixedly connecting the main cylinder 4 with the displacement amplifying cylinder 19.
The displacement amplification cylinder 19 is a cuboid, is used as a protective shell, is internally provided with a thin-wall square channel, and is provided with a square opening at the side close to the force transmission guide rod 17, specifically shown in fig. 8, one side of the connecting rod 16 is hinged with the piston guide rod 7, penetrates through the square opening and is hinged with the force transmission guide rod 17 at the other side. Two sides of the piston guide rod 7 are respectively provided with 6 pulleys 14, 12 in total, for guiding the up-and-down movement of the piston guide rod 7, as shown in fig. 7. In addition, the left end of the cylinder body is provided with a first hinge lug 10, the right end of the cylinder body is provided with a second hinge lug 18 which is connected with a force transmission guide rod 17, and the hinge lugs can be connected with an external hinge base.
The force transmission guide rod 17 is also sleeved with a transition steel pipe 2 and a flexible material 11; the flexible material 11 is located inside the transition steel tube 2. As shown in fig. 1, the transition steel tube 2 and the flexible material 11 on the force transmission guide rod 17 are fixed outside the displacement amplification cylinder 19.
The displacement amplification system in the viscous damper comprises: the force transfer guide 17, the connecting rod 16 and the piston guide 7, as shown in fig. 5, are detailed, and the amplification factor of displacement at any time can be calculated by the following formula:
wherein a, b, beta and l are marked in figure 5, beta is an included angle between the axis of the connecting rod 16 and the horizontal line, beta is more than 0 degree and less than or equal to 45 degrees, the smaller beta is, the larger displacement amplification coefficient eta is, and the variation curve of the amplification coefficient along with the angle is shown in figure 6.
The invention aims to solve the technical problem that a novel displacement amplification viscous damper which does not need a displacement amplification arrangement mechanism or an amplification device to improve the performance is designed under the condition that the damper consumes insufficient energy due to relatively small deformation of a component of a building structure under the action of earthquake and wind load, and the purpose of displacement amplification can be achieved only by the damper. The energy-consumption-performance-improving device is simple in structure, convenient to replace, high in adaptability, reliable and stable in performance and wide in application prospect, and can be matched with different arrangement modes to further improve the energy consumption performance.
The specific working process of the damper is as follows:
as shown in figures 9-10, the damper of the present invention can be installed in a frame structure in a hinged manner by means of hinge eyes at both ends, in a herringbone arrangement or a scissor-type arrangement, and the interlayer displacement u occurs as the structure is subjected to horizontal seismic motion1Displacement u by a support connected to the damper1Conversion to uinInput to the damper. The force transmission guide rod 17 is thus translated in translation and transportedThe movement is constrained by the transition steel tube 2, and a flexible material 11 is arranged in the wall of the transition steel tube 2 to reduce friction. The length of the connecting rod 16 is l, the connecting rod is connected with the other end of the force transmission guide rod 17 in a hinged mode, the included angle between the connecting rod 16 and the horizontal line is beta, beta is larger than 0 degree and smaller than or equal to 45 degrees, the other end of the connecting rod 16 is connected with the piston guide rod 7 in a hinged mode, and the structural diagrams are shown in fig. 7 and 8.
The lower part of the piston guide rod 7 is provided with a pulley 14, and a force transmission guide rod 17 translates to drive a connecting rod 16 to rotate so as to drive the piston guide rod 7 to move up and down with the displacement of uoutWherein:
uout＝η·uin
the main body part of the piston guide rod 7 is positioned in the damper main cylinder 4, and the piston 12 is fixed on the piston guide rod 7 and moves up and down synchronously with the piston guide rod 7. The piston 12 is provided with 2 damping holes 6, and the piston 12 has no gap with the inner wall of the main cylinder 4 and can be sealed by adopting a sealing technology. The damper master cylinder 4 is filled with a damping medium 5, and when the piston 12 moves up and down, the damping medium 5 is compressed to generate a damping force through the pores to dissipate the energy of the seismic input. The piston guide rod 7 is positioned in the damper auxiliary cylinder 1 and has sufficient distance with the cylinder wall, so that the piston guide rod 7 has sufficient movement space, and a transition steel pipe 2 is arranged in the auxiliary cylinder 1, namely outside the main cylinder 4, so as to stabilize the movement of the piston 12; the inner wall of the transition steel pipe 2 is attached with a flexible material 11 to reduce the friction between the inner wall of the transition steel pipe 2 and the piston guide rod 7.
The outer ring of the damper main cylinder 4 is welded with a steel ring 9, 6 bolt holes are punched on the steel ring 9, the steel ring is fixed on a displacement amplification cylinder body 19 with a square lower part through bolts 8, energy dissipation parts of the damper can be replaced according to engineering requirements, and the damper parts are periodically overhauled and replaced.
The viscous damper with the displacement amplification mechanism, which is designed by utilizing the mechanical principle of chain rod motion, has the advantages of simple structure, larger energy consumption than that of the traditional damper, simple installation and lower cost, is convenient to replace, is suitable for reinforcing and reconstructing various building structures such as a concrete structure, a steel structure, a wood structure, a combined structure and the like, can be matched with various arrangement modes such as herringbone, knuckle-joint type and scissor type arrangement, and has high space utilization rate.
Claims (10)
1. A viscous damper based on displacement amplification, comprising: the device comprises an auxiliary cylinder (1), a main cylinder (4), a piston guide rod (7), a piston (12), a transmission assembly and a displacement amplification cylinder body (19);
the auxiliary cylinder (1) is fixedly connected with the main cylinder (4); one end of the piston guide rod (7) extends into the auxiliary cylinder (1), and the other end of the piston guide rod penetrates through the main cylinder (4) and extends into the displacement amplification cylinder body (19) to be movably connected with the transmission assembly; the piston (12) is fixed on a piston guide rod (7) in the main cylinder (4); the main cylinder (4) is fixedly connected with the displacement amplification cylinder body (19).
2. Viscous damper based on displacement amplification according to claim 1, characterized in that the master cylinder (4) is filled with a damping medium (5).
3. The viscous damper based on displacement amplification according to claim 1, characterized in that the piston (12) is provided with a damping hole (6), and the damping hole (6) is communicated with the inner space of the master cylinder (4).
4. Viscous damper based on displacement amplification according to claim 1, characterized in that the master cylinder (4) is provided with a first sealing device (3) and a second sealing device (13);
the first sealing device (3) is positioned at one end in the main cylinder (4), and the second sealing device (13) is positioned at the other end in the main cylinder (4).
5. Viscous damper based on displacement amplification according to claim 1, characterized in that the part of the piston guide rod (7) inside the displacement amplification cylinder (19) is provided with a pulley (14);
a pair of guide rails (15) is arranged in the displacement amplification cylinder body (19); the pulley (14) is matched with the guide rail (15).
6. The displacement amplification based viscous damper of claim 1, wherein the transmission assembly comprises: a connecting rod (16) and a force transmission guide rod (17);
one end of the connecting rod (16) is movably connected with one end of the piston guide rod (7), and the other end of the connecting rod is movably connected with one end of the force transmission guide rod (17).
7. The displacement amplification based viscous damper of claim 6, further comprising: a first hinge lug (10) and a second hinge lug (18);
the first hinge lug (10) is fixed at one end of the displacement amplification cylinder body (19); the second hinge lug (18) is fixed on the part of the force transmission guide rod (17) extending out of the displacement amplification cylinder body (19).
8. The viscous damper based on displacement amplification according to claim 1, characterized in that a transition steel pipe (2) and a flexible material (11) are fixedly arranged in the auxiliary cylinder (1); the flexible material (11) is positioned in the transition steel pipe (2); the transition steel pipe (2) and the flexible material (11) are sleeved outside the piston guide rod (7).
9. The viscous damper based on displacement amplification according to claim 1, characterized in that a steel ring (9) is fixed outside the master cylinder (4), and a bolt (8) is fixed on the steel ring (9).
10. The viscous damper based on displacement amplification according to claim 1, characterized in that the force transmission guide rod (17) is sleeved with a transition steel pipe (2) and a flexible material (11); the flexible material (11) is positioned in the transition steel pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111611105.7A CN114197677A (en) | 2021-12-27 | 2021-12-27 | Viscous damper based on displacement amplification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111611105.7A CN114197677A (en) | 2021-12-27 | 2021-12-27 | Viscous damper based on displacement amplification |
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| CN114197677A true CN114197677A (en) | 2022-03-18 |
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| CN202111611105.7A Pending CN114197677A (en) | 2021-12-27 | 2021-12-27 | Viscous damper based on displacement amplification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775825A (en) * | 2022-05-20 | 2022-07-22 | 烟台大学 | Connecting rod type deformation amplification buckling-restrained brace |
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| JP2003253905A (en) * | 2002-02-27 | 2003-09-10 | Sekisui House Ltd | Vibration control device |
| CN103061250A (en) * | 2013-01-11 | 2013-04-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Hydraulic speed locking device for bridges |
| CN103291803A (en) * | 2013-04-03 | 2013-09-11 | 华中科技大学 | Damping force controllable viscous damper and intelligent monitoring and control system of damping force controllable viscous damper |
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| CN108643666A (en) * | 2018-03-24 | 2018-10-12 | 北京工业大学 | A kind of efficient spatial directly supports the damper of second displacement amplifying device using type end |
| CN110685212A (en) * | 2019-09-23 | 2020-01-14 | 同济大学 | External granule damping device of suspension cable |
| CN111442054A (en) * | 2020-04-20 | 2020-07-24 | 南京工业大学 | Viscous-viscoelastic composite damper |
| CN113756461A (en) * | 2021-08-20 | 2021-12-07 | 北京工业大学 | Bottom angle damper with displacement amplification function and assembled shear wall with swinging energy consumption |
-
2021
- 2021-12-27 CN CN202111611105.7A patent/CN114197677A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003253905A (en) * | 2002-02-27 | 2003-09-10 | Sekisui House Ltd | Vibration control device |
| CN103061250A (en) * | 2013-01-11 | 2013-04-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Hydraulic speed locking device for bridges |
| CN103291803A (en) * | 2013-04-03 | 2013-09-11 | 华中科技大学 | Damping force controllable viscous damper and intelligent monitoring and control system of damping force controllable viscous damper |
| CN205244230U (en) * | 2015-12-18 | 2016-05-18 | 中国船舶重工集团公司第七一一研究所 | Change energy -absorbing mechanism of amplification of atress direction |
| CN108643666A (en) * | 2018-03-24 | 2018-10-12 | 北京工业大学 | A kind of efficient spatial directly supports the damper of second displacement amplifying device using type end |
| CN110685212A (en) * | 2019-09-23 | 2020-01-14 | 同济大学 | External granule damping device of suspension cable |
| CN111442054A (en) * | 2020-04-20 | 2020-07-24 | 南京工业大学 | Viscous-viscoelastic composite damper |
| CN113756461A (en) * | 2021-08-20 | 2021-12-07 | 北京工业大学 | Bottom angle damper with displacement amplification function and assembled shear wall with swinging energy consumption |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775825A (en) * | 2022-05-20 | 2022-07-22 | 烟台大学 | Connecting rod type deformation amplification buckling-restrained brace |
| CN114775825B (en) * | 2022-05-20 | 2023-11-21 | 烟台大学 | Connecting rod type deformation amplification buckling restrained brace |
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Application publication date: 20220318 |
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