CN111255107A - Double-rod type friction damper - Google Patents
Double-rod type friction damper Download PDFInfo
- Publication number
- CN111255107A CN111255107A CN202010093170.4A CN202010093170A CN111255107A CN 111255107 A CN111255107 A CN 111255107A CN 202010093170 A CN202010093170 A CN 202010093170A CN 111255107 A CN111255107 A CN 111255107A
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- friction
- sliding
- sliding shaft
- damper
- outer sleeve
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- 238000001125 extrusion Methods 0.000 claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 description 9
- 230000035939 shock Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
-
- 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
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- 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)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a double-rod type friction damper, wherein a sliding shaft is movably arranged in an outer sleeve in a penetrating way, two ends of the sliding shaft extend out from two ends of the outer sleeve, and the surface of the sliding shaft is a friction surface with a certain friction system; the friction sliding blocks are distributed along the circumferential direction of the sliding shaft, and the friction base surface of each friction sliding block is in sliding friction fit with the surface of the sliding shaft; the extrusion rings are respectively sleeved at two ends of a plurality of friction sliding blocks distributed along the circumferential direction of the sliding shaft, the inner surface of each extrusion ring is synchronously contacted and matched with the arc inclined surfaces on the plurality of friction sliding blocks, and the outer surface of each extrusion ring is contacted and matched with the inner wall of the outer sleeve; the limiting spring is arranged relative to the extrusion ring and forms pre-pressure facing the friction sliding block on the extrusion ring. The friction damper capable of sliding in two directions can replace the conventional friction damper and can also be used in flexible connection, such as a cable of a cable structure.
Description
Technical Field
The invention relates to a shock absorption scheme of a building, in particular to a damper.
Background
At present, the dampers mainly comprise metal dampers, viscous dampers, viscoelastic dampers and friction dampers. Among them, the friction damper is widely used in view of its principle simplicity, convenience in construction, low price, and the like. The friction damper is an energy dissipation and shock absorption device which dissipates vibration energy by using friction of a friction surface. The conventional friction damper is used in rigid member connection, and the friction surface of the damper is driven to rub and consume energy through the movement of a rigid rod. Conventional dampers are not suitable when they are of flexible construction or flexible connection.
The interlayer deformation of the building under the action of earthquake or wind load is small, generally 5-40 mm, the maximum stroke of the damper can generally reach 100-200 mm, and the stroke of the friction damper can be designed according to actual conditions. The common connection mode cannot fully utilize the stroke of the damper, and the damping effect of the damper cannot be fully exerted.
For example, patent application with publication number CN101216088A discloses a cylinder type variable friction damper, which is mainly composed of an outer sleeve, an inner sleeve, a sliding shaft, a belleville spring, a lock nut, an extrusion cone ring, a friction slider, a left end plate and a right end plate with a hinge. The cylinder type variable friction damper is novel from the conventional friction damper in that variable friction can be achieved, and therefore, the damper cannot be applied when the damper adopts a flexible connection or is used in a flexible structure. Meanwhile, the damper can only be used in a common connection mode generally, and because the building deformation is relatively small, the stroke of the damper cannot be fully utilized in the common connection mode, and the damping effect of the damper cannot be fully exerted.
Disclosure of Invention
Aiming at the problem that the existing damper cannot be used in a flexible connection structure, a new damper scheme is needed.
To this end, the invention aims to provide a double-ejection rod type friction damper which can be used both in place of a conventional friction damper and in a flexible connection.
In order to achieve the purpose, the double-rod-out type friction damper provided by the invention comprises an outer sleeve, a sliding shaft, a friction sliding block, a squeezing ring and a limiting spring; the sliding shaft is movably arranged in the outer sleeve in a penetrating way, two ends of the sliding shaft extend out of two ends of the outer sleeve, and the surface of the sliding shaft is a friction surface with a certain friction system; the inner surface of each friction sliding block is a friction base surface matched with the surface of the sliding shaft, the outer surface of each friction sliding block is an arc inclined surface which is symmetrically distributed, the friction sliding blocks are distributed along the circumferential direction of the sliding shaft, and the friction base surface of each friction sliding block is in sliding friction fit with the surface of the sliding shaft; the inner surface of the extrusion ring is a de-vertex conical surface matched with the arc inclined surface on the friction sliding block; the extrusion rings are respectively sleeved at two ends of a plurality of friction sliding blocks distributed along the circumferential direction of the sliding shaft, the inner surface of each extrusion ring is synchronously contacted and matched with the arc inclined surfaces on the friction sliding blocks, and the outer surface of each extrusion ring is contacted and matched with the inner wall of the outer sleeve; the limiting spring is arranged relative to the extrusion ring and forms pre-pressure facing the friction sliding block on the extrusion ring.
Furthermore, two ends of the outer sleeve are provided with guide rings matched with the sliding shaft.
Furthermore, two ends of the sliding shaft are provided with earrings.
The invention provides a bidirectional sliding friction damper which can replace a conventional friction damper or be used for flexible connection. The friction damper has a bidirectional sliding function, can effectively amplify damper displacement and increase energy consumption, and if the friction damper is applied, two movable ends of the friction damper are connected with a component through the inhaul cable, the inhaul cable is arranged to span a certain number of layers or height according to actual deformation requirements, so that the relative displacement of the inhaul cable is increased, the damper is directly connected with the inhaul cable, the displacement is consistent with the inhaul cable, and the damper displacement and the energy consumption are increased under the action of the inhaul cable.
Furthermore, the friction damper can slide in two directions, and can also be used for members with two-way sliding deformation requirements, such as a cable of a cable structure, a cable of a cable-stayed bridge and the like. The damper can be directly connected with two ends of the stay cable through two movable ends, and replaces part of the stay cable, so that the damper is a part of the stay cable and can also realize energy dissipation and shock absorption.
Moreover, the friction damper capable of sliding in two directions provided by the invention has the advantages that the friction damping force is constant, the energy consumption capability is increased along with the increase of the deformation amplitude, and the reliability is high.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is an overall construction view of a double-ejection-rod type friction damper in this example;
FIG. 2 is a cross-sectional view A-A of the dual-extension rod friction damper of FIG. 1;
FIG. 3 is a cross-sectional view B-B of the dual-extension rod friction damper of FIG. 1;
FIG. 4 is a cross-sectional view C-C of the dual-extension rod friction damper shown in FIG. 1;
FIG. 5 is a view showing the overall construction of the double-rod type friction damper of the coil limit spring according to the present embodiment;
FIG. 6 is an exemplary illustration of the double-stick friction damper of the present example applied to a conventional building structure;
FIG. 7 is a schematic view of the double-extension-rod type friction damper applied to a cable structure of a cable-stayed bridge or the like in the present example;
fig. 8 is an example of the application of the double-ejection-rod type friction damper in the shock absorbing device in which the stay is connected to the damper in this example.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, there is shown an example of a composition of the double-stick friction damper given in this example.
As can be seen from the figure, the double-rod type friction damper is mainly formed by mutually matching an outer sleeve 1, a sliding shaft 6, a friction sliding block 3, a squeezing ring 2 and a limiting spring 7.
Wherein the outer sleeve 1 constitutes the main body of the whole friction damper, and the whole is of a cylindrical structure with a hollow cavity inside, preferably cylindrical in this example, so as to facilitate the installation and arrangement. The outer sleeve 1 has end plates 11 at both ends thereof, and through holes for allowing the sliding shafts 6 to pass therethrough are symmetrically formed in the end plates 11 at both ends.
Furthermore, in the embodiment, the through holes on the end plates 11 at the two ends are respectively provided with the annular guide rings 8 for reducing the friction between the sliding shaft 6 and the rod outlets at the two ends, so that the friction force generated by uneven contact of friction blocks in the sleeve due to deflection of the middle pull rod in the movement process is avoided to be stable.
The sliding shaft 6 in the friction damper is used as a friction sliding component which is externally connected, the sliding shaft is integrally arranged in the outer sleeve 1 in a penetrating way through the guide rings 8 on the two ends of the outer sleeve 1, and the two ends of the sliding shaft 6 respectively extend out of the outer sleeve 1 through the guide rings 8.
The sliding shaft 6 is made of a stainless material, a high-strength steel material, copper, or the like as a whole, and the surface thereof is formed with a friction surface having a certain friction coefficient by surface treatment to be in sliding friction engagement with the friction slider 3 to absorb vibration energy.
In this embodiment, the sliding shaft 6 is provided with connecting lugs 9 at two ends penetrating through the outer sleeve 1, and the connecting lugs 9 at two ends can be respectively connected with the component needing energy consumption, or one end can be connected with the component needing energy consumption, and the other end is vacant.
The friction slide block 3 in the friction damper is directly in friction fit with the sliding shaft 6 to realize vibration energy absorption.
Referring to fig. 1-3, the friction sliding block 3 is arc-shaped as a whole, the inner surface of the friction sliding block is provided with an arc-shaped friction base surface layer 5 matched with the surface of the sliding shaft, the outer surface of the friction sliding block is provided with symmetrical arc inclined planes 10 which are symmetrically distributed and inclined from the middle part to the two sides, and the friction sliding block 3 with the structure can enable the sliding block to stably slide inwards through the arc inclined planes on the friction sliding block, so that the stability of pre-extrusion force is ensured.
By way of example, to ensure the strength of the friction slider 3, the friction slider 3 is preferably made of steel to form a friction slider 3 base body, the overall structural form of which satisfies the scheme shown in the drawing; meanwhile, friction materials are arranged on the inner surface of the steel base body to form a corresponding circular arc friction base surface layer.
When the friction sliding blocks 3 with the structure are matched with the sliding shaft 6, a plurality of friction sliding blocks 3 are adopted, the friction sliding blocks 3 are distributed along the circumferential direction of the sliding shaft, a certain gap 4 is formed between every two adjacent friction sliding blocks 3, therefore, the friction sliding blocks 3 are distributed in an annular shape on the periphery of the sliding shaft, and the circular-arc-shaped friction base surface layer 5 of each friction sliding block is directly matched and contacted with the friction surface of the sliding shaft 6, so that the sliding friction matching of surface contact is formed; meanwhile, the symmetrical arc inclined planes 10 of each friction sliding block respectively face the two ends of the outer sleeve 1. The inner side of the friction sliding block 3 is a friction surface, and in order to ensure stable contact between the friction surface and the intermediate shaft and maintain a certain extrusion force, the sliding block 3 is divided into a plurality of blocks along the circumferential direction, preferably, the shape is circular, and the sliding block can also be made into a regular polygon.
The number of the friction sliding blocks 3 can be two or more according to actual requirements, for example, 4 friction sliding blocks 3 are used in the illustrated case and are annularly distributed on the outer peripheral surface of the sliding shaft, so that the reliability and stability of friction fit can be ensured.
For the friction sliding blocks 3, the pressing ring 2 and the limiting spring 7 are matched to synchronously form pre-pressure on two ends of all the friction sliding blocks 3, so that the circular arc-shaped friction base surface layers 5 of all the friction sliding blocks 3 are directly in contact fit with the friction surface of the sliding shaft 6; meanwhile, the pressure synchronously formed on the two ends of the friction sliding block 3 can be linearly adjusted according to the moving direction and the stroke of the friction sliding block 3.
Specifically, the extrusion ring 2 in this example is annular as a whole, and the inner surface of the extrusion ring is a de-jacked conical surface matched with the arc inclined surface 10 on the friction sliding block 3, that is, the inclination of the inner surface of the extrusion ring 2 is the same as the arc inclined surface 10 on the friction sliding block 3; and the outer surface of the extrusion ring 2 is a circular arc plane.
The extrusion ring 2 of such structure overlaps respectively and is the both ends of a plurality of friction slider 3 that the annular distributes along sliding shaft circumference, and every extrusion ring 2 is the circular arc inclined plane synchronization surface contact cooperation of a plurality of friction slider 3 one end that the annular distributes along sliding shaft circumference through its inboard conical surface, and the surface of extrusion ring 2 is in contact cooperation with the inner wall of outer sleeve simultaneously. Thus, the inner wall of the outer sleeve guides and limits the movable direction of each extrusion ring 2, and each extrusion ring 2 is matched with the inclined plane formed between the circular arc inclined planes at one ends of the friction sliding blocks 3 through the conical surface at the inner side of the extrusion ring 2, and when the extrusion ring and the friction sliding blocks 3 move axially relative to each other, the extrusion ring can synchronously form pressure facing the sliding shaft 6 (in the radial direction) on the circular arc inclined planes at one ends of the friction sliding blocks 3.
The limiting spring 7 is here arranged, in particular with respect to the press rings 2, to create a pre-pressure for each press ring 2 facing the friction slide 3.
In order to effectively limit the extrusion rings 2 sleeved at the two ends of the friction sliding blocks 3, two sets of limiting springs 7 are preferably selected in this example, and the two sets of limiting springs 7 are respectively arranged between the two extrusion rings 2 at the two ends of the friction sliding blocks 3 and the end plate 11 of the outer sleeve 1, so that pre-pressure is synchronously formed on the two extrusion rings 2 at the two ends of the friction sliding blocks 3 from the two sides.
As shown in fig. 1 and 4, a plurality of limiting springs 7 are included in each set of limiting springs 7, the plurality of limiting springs 7 are circumferentially distributed along the sliding shaft 6 relative to the extrusion ring 2, one end of each limiting spring 7 is connected with the extrusion ring 2, the other end of each limiting spring 7 is abutted with the end plate 11 of the outer sleeve 1, and each limiting spring 7 is in a pre-compression state under a normal state.
The number of the limiting springs 7 in each group of limiting springs 7 can be determined according to actual requirements, and the number of the friction sliding blocks 3 is preferably corresponding to the number of the adopted limiting springs in the embodiment. Referring to fig. 2 and 4, 4 friction blocks 3 are used in the illustrated case, so that four limit springs 7 are used in each set in the present case, and the distribution position of each limit spring 7 corresponds to the center position of each friction block 3. The limiting spring is arranged for keeping the extrusion force of the upper part of the sliding block 3; meanwhile, the limiting springs are symmetrically arranged, so that the output force of the springs can be ensured to be stable, the extrusion force on the sliding block is ensured to be stable, and the situation of blocking is avoided when the pull rod moves fast in the damper sleeve.
Alternatively, each set of limiting springs 7 may be formed by one limiting spring 7. Referring to fig. 5, a helical retainer spring 7 may be provided between the extrusion ring 2 and the end plate 11 of the outer sleeve 1 to retain and preload the extrusion ring 2. The spiral limiting spring 7 is integrally sleeved on the sliding shaft 6, one end of the spiral limiting spring is abutted against the end face of the extrusion ring 2, and the other end of the spiral limiting spring is abutted against the end plate 11 of the outer sleeve 1. This alternative employs a coil spring, which is more convenient to manufacture and can obtain a greater extrusion force.
The sliding shaft 6 in the double-rod type friction damper formed based on the scheme is integrally and movably arranged in the outer sleeve in a penetrating way to form two movable ends, and the two movable ends can be respectively connected with components needing energy consumption. The sliding shaft can slide in two directions in the axial direction, and when the outer sleeve and the sliding shaft move relatively in the axial direction, the outer circumferential friction surface of the sliding shaft and the friction base surface of the friction block rub and slide mutually to absorb vibration energy. Because the limit spring is propped against the extrusion ring, the positive pressure on the friction resistance contact surface and the contact area are kept unchanged, the friction damping force is constant, and the energy consumption capacity is increased along with the increase of the deformation amplitude.
The double-rod-out type friction damper provided by the embodiment can replace a conventional friction damper and can also be used in flexible connection when being applied specifically, so that the double-rod-out type friction damper can be applied to vibration reduction of building structures, vibration reduction of building cable structures and vibration reduction of cable-stayed bridges or suspension bridges.
Referring to fig. 6, there is shown an example of the present double-stick friction damper applied to a conventional building structure.
As can be seen from the figure, when the damper is used in the conventional structural damping design, the outer sleeve 1 of the damper can be fixed on a building structure, one end of the outer sleeve is connected with a member, and when the other end of the outer sleeve is vacant, the sliding shaft 6 in the damper slides in the axial direction to dissipate energy under the action of earthquake or wind load.
Because the double-rod type friction damper can be used in flexible connection, the relative deformation of the two ends of the damper can be increased by adopting the damping device with the stay cable connected with the damper, the stroke of the damper is fully utilized, and the damping efficiency is greatly improved.
Referring to fig. 7, an example of the application of the double-ejection-rod type friction damper of the present embodiment to a cable structure of a cable-stayed bridge or the like is shown.
As can be seen from the figure, when the double-rod-out type friction damper 12 is used in cable structures such as cable-stayed bridges and the like, two movable ends 9 of the double-rod-out type friction damper can be connected with a member through the stay cable 13, the displacement of the damper 12 can be amplified under the action of the stay cable 13 to increase energy consumption, and the double-rod-out type friction damper can also be used in local areas in building cable structures or cable-stayed bridges to realize energy dissipation and shock absorption by replacing the stay cable with the.
Referring to fig. 8, there is shown an example in which the double-ejection rod type friction damper of the present embodiment is applied to a shock absorbing device in which a cable is connected to a damper.
The damping device with connected stay cable and damper includes friction damper 12 set in proper position of some floor, middle part or bottom, etc. the damper has two movable ends connected via stay cable 13 with pre-tension force and fixed pulley 14 to the building to other dampers 12.
Therefore, the building generates interlayer deformation under the action of earthquake or wind load, and the relative deformation of the two ends of the damper is the sum of the interlayer deformation of each floor, so that a large amount of energy input into the main body structure can be consumed, and the effect of large-amplitude shock absorption is achieved. The damper in the damping device with the stay cable connected with the damper is flexibly arranged, and has little influence on the use function and the appearance of the building. Meanwhile, the expected shock absorption can be realized by arranging the number of the cross-floor layers and the number of the dampers of the shock absorption device
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The double-rod type friction damper is characterized by comprising an outer sleeve, a sliding shaft, a friction sliding block, an extrusion ring and a limiting spring; the sliding shaft is movably arranged in the outer sleeve in a penetrating way, two ends of the sliding shaft extend out of two ends of the outer sleeve, and the surface of the sliding shaft is a friction surface with a certain friction system; the inner surface of each friction sliding block is a friction base surface matched with the surface of the sliding shaft, the outer surface of each friction sliding block is an arc inclined surface which is symmetrically distributed, the friction sliding blocks are distributed along the circumferential direction of the sliding shaft, and the friction base surface of each friction sliding block is in sliding friction fit with the surface of the sliding shaft; the inner surface of the extrusion ring is a de-vertex conical surface matched with the arc inclined surface on the friction sliding block; the extrusion rings are respectively sleeved at two ends of a plurality of friction sliding blocks distributed along the circumferential direction of the sliding shaft, the inner surface of each extrusion ring is synchronously contacted and matched with the arc inclined surfaces on the friction sliding blocks, and the outer surface of each extrusion ring is contacted and matched with the inner wall of the outer sleeve; the limiting spring is arranged relative to the extrusion ring and forms pre-pressure facing the friction sliding block on the extrusion ring.
2. The double out-rod friction damper of claim 1, wherein the outer sleeve is provided at both ends with guide rings that engage the sliding shaft.
3. The double-stick friction damper according to claim 1, wherein both ends of the sliding shaft are provided with earrings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911089574X | 2019-11-08 | ||
| CN201911089574 | 2019-11-08 |
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| Publication Number | Publication Date |
|---|---|
| CN111255107A true CN111255107A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010093170.4A Pending CN111255107A (en) | 2019-11-08 | 2020-02-14 | Double-rod type friction damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609855A (en) * | 2020-12-11 | 2021-04-06 | 昆明理工大学 | One-way self-resetting adjustable friction energy dissipation damper and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012154356A (en) * | 2011-01-21 | 2012-08-16 | Thk Co Ltd | Friction damper |
| CN203285897U (en) * | 2013-03-15 | 2013-11-13 | 尹学军 | Friction damper |
| CN105387115A (en) * | 2015-12-24 | 2016-03-09 | 北京工业大学 | Dual-compressed-spring flat plate type-centripetal variable friction damper |
| CN212224269U (en) * | 2019-11-08 | 2020-12-25 | 华东建筑设计研究院有限公司 | Double-rod type friction damper |
-
2020
- 2020-02-14 CN CN202010093170.4A patent/CN111255107A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012154356A (en) * | 2011-01-21 | 2012-08-16 | Thk Co Ltd | Friction damper |
| CN203285897U (en) * | 2013-03-15 | 2013-11-13 | 尹学军 | Friction damper |
| CN105387115A (en) * | 2015-12-24 | 2016-03-09 | 北京工业大学 | Dual-compressed-spring flat plate type-centripetal variable friction damper |
| CN212224269U (en) * | 2019-11-08 | 2020-12-25 | 华东建筑设计研究院有限公司 | Double-rod type friction damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609855A (en) * | 2020-12-11 | 2021-04-06 | 昆明理工大学 | One-way self-resetting adjustable friction energy dissipation damper and use method thereof |
| CN112609855B (en) * | 2020-12-11 | 2022-05-06 | 昆明理工大学 | One-way self-resetting adjustable friction energy dissipation damper and use method thereof |
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