CN108086510A - The complete double ranks of assembled slide damper - Google Patents
The complete double ranks of assembled slide damper Download PDFInfo
- Publication number
- CN108086510A CN108086510A CN201711326566.3A CN201711326566A CN108086510A CN 108086510 A CN108086510 A CN 108086510A CN 201711326566 A CN201711326566 A CN 201711326566A CN 108086510 A CN108086510 A CN 108086510A
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- angle steel
- steel section
- section
- damper
- top flange
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention provides a kind of double ranks of full assembled and slides damper, belongs to building engineering field.Including two steel plates, top flange angle steel section, lower flange angle steel section；One limb of upper and lower boom angle section is affixed on the front and rear sides of steel plate respectively, and is connected with frictional high-strength bolts with steel plate, and another limb forms the top flange or lower flange of damper；Upper and lower boom angle section is kept continuously in beam section, and two blocks of steel plates separate the notch to form a distance at a certain section of beam section；Damper point four energy dissipating portions, two energy dissipating portions on a diagonal are first-order slip-flow side, and two energy dissipating portions on another diagonal are second-order slip-flow side；The frictional high-strength bolts quantity of the same model of second-order slip-flow side is bigger than first-order slip-flow side more than first-order slip-flow side or second-order slip-flow side frictional high-strength bolts model, realizes that double ranks are slided.The complete double ranks of assembled, which slide damper, has big stroke, it can be achieved that full assembling, double ranks are slided, and has good energy-dissipating and shock-absorbing performance.
Description
Technical field
The invention belongs to construction engineering technical fields more particularly to a kind of double ranks of full assembled to slide damper.
Background technology
In recent years, in global range earthquake take place frequently and for the development for meeting increasing engineering structure
It needs, the passive control theory of structural damping is widely applied, and is breached and traditional is disappeared by structure ductility in itself
The anti-shock methods of seismic energy are consumed, additional energy dissipator is relied primarily on and carrys out earthquake energy, reduce and even eliminate main body knot
The destruction of structure.
Frcition damper is a kind of energy-consuming device being attached in structure, right by force of sliding friction acting dissipation energy
Structure plays energy-dissipating and shock-absorbing.During small shake, structure has enough rigidity in itself, and in elastic stage, frcition damper does not generate
Sliding；When middle shake, big shake, malformation increase, frcition damper generates sliding, and additional damping is provided for structure, energy-dissipating and shock-absorbing,
So as to protect the safety of agent structure.
At present, research and development mainly has applied to beam column, the rotary damper of Liang Liang connections：Frcition damper, metal
Damper, composite buffer and some rotation energy dissipation nodes etc..But at present for such energy-consumption damper, generally existing
Following shortcoming：Assembling degree is low, fabrication and installation are numerous and diverse；For pivoting friction damper, turning power is limited, stroke deficiency；
For friction damper, sliding/friction power generally is played with invariable, when sliding damping force setting is higher, damper can
Not recoverable residual deformation is generated after sliding or slip can not be played；If damping force setting is too low, required damping can not be provided
Power reduces so as to cause the cushioning ability of damper.
The content of the invention
It is an object of the present invention to overcome the deficiencies in the prior art, solves current energy-consumption damper, generally existing assembling
The shortcomings of change degree is low, stroke is insufficient provides a kind of double ranks of full assembled and slides damper.The double ranks of the full assembled slide damping
Not only stroke is big, it can be achieved that being connect for spelling for device, and fabrication and installation are convenient；And it can be made different big by the way that double ranks is set to slide
There is good energy-dissipating and shock-absorbing effect under small geological process.
In order to realize above-mentioned target, the present invention provides following technical solutions：
A kind of double ranks of full assembled slide damper, which is characterized in that including steel plate, top flange angle steel section, lower flange angle
Steel section and several frictional high-strength bolts；
The steel plate includes left plate and right steel plate；The left plate and right steel plate or so are arranged side by side, and in girder steel section
The notch to form a distance is separated at certain section；
The top flange angle steel section and lower flange angle steel section keep continuous in girder steel segment limit；
The top flange angle steel section includes before top flange angle steel section behind angle steel section and top flange, angle steel section before the top flange
It is respectively arranged with angle steel section behind top flange in the front and rear sides of steel plate upper end；A limb of angle steel section and top flange before the top flange
A limb of angle steel section is bonded respectively with steel plate afterwards, and the two is used and is slidably connected between frictional high-strength bolts and steel plate jointly；
Another limb of angle steel section forms the double ranks of the full assembled and slides resistance behind another limb of angle steel section and top flange before the top flange
The top flange of Buddhist nun's device；
The lower flange angle steel section includes before lower flange angle steel section behind angle steel section and lower flange, angle steel section before the lower flange
It is respectively arranged with angle steel section behind lower flange in the front and rear sides of steel plate lower end；A limb of angle steel section and lower flange before the lower flange
A limb of angle steel section is bonded respectively with steel plate afterwards, and the two is used and is slidably connected between frictional high-strength bolts and steel plate jointly；
Another limb of angle steel section forms the double ranks of the full assembled and slides resistance behind another limb of angle steel section and lower flange before the lower flange
The lower flange of Buddhist nun's device；
Notch, top flange angle steel section and lower flange angle steel section at the steel plate jointly slide the double ranks of the full assembled
Damper is divided into upper left side, lower left side, upper right side and the energy dissipating portion of lower right side four；Two energy consumptions on a diagonal
Part is first-order slip-flow side, and the another two energy dissipating portion on another diagonal is second-order slip-flow side；
The quantity of the frictional high-strength bolts of the second-order slip-flow side installation is same more than first-order slip-flow side installation
The quantity of the frictional high-strength bolts of model and/or the model of the frictional high-strength bolts of second-order slip-flow side installation are more than
The model of the frictional high-strength bolts of the first-order slip-flow side；So that second-order slip-flow side has rising for bigger to slide resistance compared with first-order slip-flow side
Buddhist nun's power, to realize that double ranks of the damper are slided.
Preferably, offer that several to be adapted to the full assembled double respectively on the left and right steel plate of first-order slip-flow side
Rank slides oblique oval several single order slide bolt holes that damper rotates；
Also offered respectively on the left and right steel plate of second-order slip-flow side it is several be adapted to the full assembled damper turn
Dynamic oblique oval several second order slide bolt holes；
The top flange angle steel section and lower flange angle steel section are sliding spiral shell corresponding to single order slide bolt hole and second order respectively
Fixed bolt hole is offered at the position of keyhole.
Friction plate can be added between the steel plate and the contact surface of angle steel section or is carried out using wearing plate or to each contact surface
Mechanical treatment, chemical treatment etc. are to improve the coefficient of friction of each contact surface and wearability.
The above technical scheme that the present invention uses compared with prior art, for example and without limitation, has with following
Beneficial effect：The double ranks of the full assembled slide damper and pass through two kinds of different models of setting or the high-strength spiral shell of friction-type of different number
Double ranks that bolt realizes damper are slided；Under geological process, one, second-order slip-flow around the center rotating of damper, slide stroke
Greatly, there is enough turning powers；During middle shake, only sliding energy consumption is played in first-order slip-flow side；During big shake, one, second-order slip-flow side successively
Sliding energy consumption is played, increases the energy-dissipating and shock-absorbing ability of damper；With good energy-dissipating and shock-absorbing effect and larger application range,
And the setting that double ranks are slided is avoided when sliding power sets higher, damper, which does not rise, to be slided or is generated after sliding not recoverable
The defects of residual deformation, plays the role of protecting damper.Meanwhile the double ranks of the full assembled slide damper fabrication and installation letter
It is single convenient.
Description of the drawings
Fig. 1 is the schematic elevation view that the double ranks of full assembled of the present invention slide damper；
Fig. 2 is the schematic side view that the double ranks of full assembled of the present invention slide damper；
Fig. 3 is the structure diagram of steel plate of the present invention；
Fig. 4 is the structure diagram of angle steel section in top flange of the present invention；
Fig. 5 is the structure diagram of angle steel section in lower flange of the present invention.
Reference sign
1 left plate
1a left plate upper bolt holes
Bolt hole under 1b left plates
2 right steel plates
Bolt hole under the right steel plates of 2a
2b left plate upper bolt holes
3 top flange angle steel sections
The left bolt hole in 3a top flanges
The right bolt hole in 3b top flanges
4 lower flange angle steel sections
The right bolt hole in 4a lower flanges
The left bolt hole in 4b lower flanges
5 frictional high-strength bolts
6 centers of rotation
7 rubbing surfaces
Specific embodiment
Below in conjunction with specific embodiment and its attached drawing the double ranks of full assembled provided by the invention are slided with the skill of damper
Art scheme is described further.With reference to following explanation, advantages and features of the invention will be apparent from.
It should be noted that the embodiment of the present invention has preferable implementation, it is not to any type of limit of the present invention
It is fixed.The combination of technical characteristic or technical characteristic described in the embodiment of the present invention is not construed as isolated, they can
To be mutually combined to reach superior technique effect.The scope of the preferred embodiment for the present invention can also include other reality
It is existing, and this should be understood by person of ordinary skill in the field of the embodiment of the present invention.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.Institute that is shown here and discussing
Have in example, any occurrence should be construed as merely illustrative, not as restriction.Therefore, exemplary embodiment
Other examples can have different values.
Structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification it is revealed in
Hold, so that those skilled in the art understands and reads, be not limited to the enforceable qualifications of the present invention, therefore do not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under the effect of raw and the purpose that can reach, should all still it fall in the range of disclosed technology contents can be covered.
Meanwhile the cited such as term of " on ", " under ", "left", "right" and " one " in this specification, it is merely convenient to the bright of narration
Rather than to limit the enforceable scope of the present invention, relativeness is altered or modified, and technology contents are being changed without essence
Under, when being also considered as the enforceable scope of the present invention.
As shown in Figures 1 to 5, the present invention provides a kind of double ranks of full assembled and slides damper.
As shown in Figure 1, 2, the double ranks of the full assembled, which slide damper, includes steel plate, top flange angle steel section 3, lower flange angle steel
Section 4 and several frictional high-strength bolts 5.
As shown in Figure 1,3, steel plate includes left plate 1 and right steel plate 2；Left plate 1 is set with right 2 or so side by side parallel of steel plate
It puts, and the notch to form a distance is left in the punishment of girder steel section section, which ensure that the double ranks of full assembled slide resistance
Buddhist nun's device has enough rotation spaces under geological process.
As shown in Fig. 1,4,5, top flange angle steel section 3 and lower flange angle steel section 4 keep continuous in girder steel segment limit.
Further, as shown in Figure 2 and Figure 4, top flange angle steel section 3 includes angle steel behind angle steel section before top flange and top flange
Section, angle steel section is respectively arranged in the front and rear sides of steel plate upper end behind angle steel section and top flange before the top flange；The top flange
A limb of angle steel section is bonded respectively with steel plate after one limb of preceding angle steel section and top flange, and the two uses the high-strength spiral shell of friction-type jointly
It is slidably connected between bolt 5 and steel plate；Another limb of angle steel section is formed behind another limb of angle steel section and top flange before the top flange
The double ranks of the full assembled slide the top flange of damper.
Further, as shown in Figure 2 and Figure 5, lower flange angle steel section 4 includes angle steel behind angle steel section before lower flange and lower flange
Section, angle steel section is respectively arranged in the front and rear sides of steel plate lower end behind angle steel section and lower flange before the lower flange；The lower flange
A limb of angle steel section is bonded respectively with steel plate after one limb of preceding angle steel section and lower flange, and the two uses the high-strength spiral shell of friction-type jointly
It is slidably connected between bolt 5 and steel plate；Another limb of angle steel section is formed behind another limb of angle steel section and lower flange before the lower flange
The double ranks of the full assembled slide the lower flange of damper.
It is pivoting friction damper, all steel plates and the company of angle steel section that the double ranks of full assembled of the present invention, which slide damper,
It connects using frictional high-strength bolts, is not related to welding and other complicated connection modes, realizes the full assembling of damper, make
It is simple and convenient to make processing, and a contact surface is formed between each block of steel plate of the damper and the contact surface of each block of angle steel,
Eight rubbing surfaces 7 are formd altogether.In a preferred embodiment, can be added between the contact surface of steel plate and angle steel friction plate or
The processing of the modes such as machinery, chemistry is carried out using wearing plate or to rubbing surface to improve the coefficient of friction of rubbing surface and wearability.
As shown in Figure 1, the notch, top flange angle steel section 3 and the lower flange angle steel section 4 that are formed at steel plate are jointly by full assembled
Double ranks slide damper and are divided into upper left side, lower left side, upper right side, the energy dissipating portion of lower right side four；Wherein, positioned at a diagonal
On two energy dissipating portions for first-order slip-flow side, the another two energy dissipating portion on another diagonal is second-order slip-flow side.
For example and without limitation, in the present embodiment, two energy dissipating portions in lower left side and this diagonal of upper right side
First-order slip-flow side is formed, two energy dissipating portions composition second-order slip-flow side on upper left side and this diagonal of lower right side.
As shown in figure 3, it in a preferred embodiment, is offered on the steel plate of first-order slip-flow side and is adapted to full assembling
Double ranks slide oblique oval several single order slide bolt holes that damper rotates, and wherein open up several left plates on left plate 1
Several right steel plate upper bolt hole 2b are opened up on lower bolt hole 1b, right steel plate 2；Meanwhile it is also opened on the steel plate of second-order slip-flow side
Equipped with the oblique oval several second order slide bolt holes for being adapted to the double ranks slip dampers rotations of full assembling, wherein left plate 1
On open up several left plate upper bolt hole 1a, open up bolt hole 2a under several right steel plates on right steel plate 2.Due to the complete double ranks of assembling
It slides damper to rotate around its midpoint, therefore should be slided on a diagonal in the bolt hole with single order with assembling double ranks entirely
It is symmetrical centered on the midpoint of damper.
Further, as shown in Figure 4 and Figure 5, top flange angle steel section 3 and lower flange angle steel section 4 are slided respectively corresponding to single order
Fixed bolt hole is offered at the position in dynamic bolt hole and second order slide bolt hole.The aperture of the fixed bolt hole is with being installed on
The diameter of frictional high-strength bolts 5 therein matches.Wherein, opened up in top flange angle steel section 3 the left bolt hole 3a in top flange and
The right bolt hole 3b in top flange；The left bolt hole 4b in lower flange and the right bolt hole 4a in lower flange are opened up in lower flange angle steel section 4.
In order to realize that double ranks of damper are slided, the quantity of the frictional high-strength bolts 5 of second-order slip-flow side installation will be more than
The quantity of the frictional high-strength bolts 5 of the same model of first-order slip-flow side installation；Alternatively, the friction-type of second-order slip-flow side installation is high
The model of strength bolt 5 is greater than the model of the frictional high-strength bolts 5 of first-order slip-flow side；Alternatively, the installation of second-order slip-flow side rubs
While the quantity of wiping type high-strength bolt 5 is more than the quantity of the frictional high-strength bolts 5 of first-order slip-flow side installation, second-order slip-flow side
The model of the frictional high-strength bolts 5 of installation is also greater than the model of the frictional high-strength bolts 5 of first-order slip-flow side；Can so it make
Obtain second-order slip-flow side has rising for bigger to slide damping force compared with first-order slip-flow side, effectively to realize that the double ranks of full assembled slide dampers
Double ranks are slided.In the present invention, the particular number of frictional high-strength bolts 5 does not require, can be according to carrying needed for damper
Power size is determined.
Under geological process, the double ranks of the full assembled slide the one of damper, second-order slip-flow side around the damper
Center of rotation 6 rotates, and sliding stroke is big, has enough turning powers.
Under middle shake effect, only first-order slip-flow side is installed on the friction of first-order slip-flow side around the damper center rotating
Type high-strength bolt 5 slides, and the left side of lower flange angle steel section 4 and the right side of top flange angle steel section 3 generate phase with steel plate respectively
To sliding, friction energy-dissipating is realized.
Under big shake effect, first-order slip-flow side rotates first, realizes friction energy-dissipating, and second-order slip-flow side also starts to wind afterwards
Buddhist nun's device center rotating, be installed on second order slide side frictional high-strength bolts 5 slide, the left side of top flange angle steel section 3 with
The right side of lower flange angle steel section 4 starts to produce relative sliding with steel plate, realizes second order friction energy-dissipating.
The double ranks of the full assembled slide damper and increase energy-dissipating and shock-absorbing ability by the way that double ranks is set to slide, and expanding should
With scope, make it have good energy-dissipating and shock-absorbing effect, in addition, double ranks slide setting, avoid work as cunning power setting it is higher
When, damper does not act the defects of sliding or generating not recoverable residual deformation after sliding, and plays the role of protecting damper.
In conclusion the double ranks of the full assembled of the present invention slide damper, simple structure is easy to process, only needs friction-type height
Assembly can be completed in strength bolt, realizes full assembling；First, second-order slip-flow side can be rotated around the center of rotation 6 of the damper, sliding
It is big to transfer journey；Energy-dissipating and shock-absorbing ability is increased, damper application range is expanded, while protection can be played under severe earthquake action
The effect of damper；With very big practical value.
Above-described embodiment is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (2)
1. a kind of double ranks of full assembled slide damper, which is characterized in that including steel plate, top flange angle steel section (3), lower flange angle
Steel section (4) and several frictional high-strength bolts (5)；
The steel plate includes left plate (1) and right steel plate (2)；The left plate (1) and right steel plate (2) left and right are arranged side by side, and
The notch to form a distance is separated at girder steel section section；
The top flange angle steel section (3) and lower flange angle steel section (4) keep continuous in girder steel segment limit；
The top flange angle steel section (3) includes before top flange angle steel section behind angle steel section and top flange, angle steel section before the top flange
It is respectively arranged with angle steel section behind top flange in the front and rear sides of steel plate upper end；A limb of angle steel section and top flange before the top flange
A limb of angle steel section is bonded respectively with steel plate afterwards, and the two uses frictional high-strength bolts (5) company of slip between steel plate jointly
It connects；Another limb of angle steel section forms the double ranks of the full assembled and slides behind another limb of angle steel section and top flange before the top flange
The top flange of damper；
The lower flange angle steel section (4) includes before lower flange angle steel section behind angle steel section and lower flange, angle steel section before the lower flange
It is respectively arranged with angle steel section behind lower flange in the front and rear sides of steel plate lower end；A limb of angle steel section and lower flange before the lower flange
A limb of angle steel section is bonded respectively with steel plate afterwards, and the two uses frictional high-strength bolts (5) company of slip between steel plate jointly
It connects；Another limb of angle steel section forms the double ranks of the full assembled and slides behind another limb of angle steel section and lower flange before the lower flange
The lower flange of damper；
Notch, top flange angle steel section (3) at the steel plate jointly slide the double ranks of the full assembled with lower flange angle steel section (4)
Fluctuation dampers are divided into upper left side, lower left side, upper right side and the energy dissipating portion of lower right side four；Two consumptions on a diagonal
Can be partly first-order slip-flow side, the another two energy dissipating portion on another diagonal is second-order slip-flow side；
The quantity of the frictional high-strength bolts (5) of the second-order slip-flow side installation is more than the same type of first-order slip-flow side installation
Number frictional high-strength bolts (5) quantity and/or
The friction-type that the model of the frictional high-strength bolts (5) of the second-order slip-flow side installation is more than the first-order slip-flow side is high-strength
The model of bolt (5).
2. the double ranks of full assembled according to claim 1 slide damper, it is characterised in that：Positioned at first-order slip-flow side
Offered respectively on left and right steel plate (1,2) it is several be adapted to the double ranks of the full assembled slide dampers rotate it is oblique oval
Several single order slide bolt holes；
It is also offered respectively on the left and right steel plate (1,2) of second-order slip-flow side and several is adapted to the full assembled damper
The oblique oval several second order slide bolt holes rotated；
The top flange angle steel section (3) and lower flange angle steel section (4) are respectively corresponding to single order slide bolt hole and second order slip
Fixed bolt hole is offered at the position of bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326566.3A CN108086510A (en) | 2017-12-13 | 2017-12-13 | The complete double ranks of assembled slide damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711326566.3A CN108086510A (en) | 2017-12-13 | 2017-12-13 | The complete double ranks of assembled slide damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086510A true CN108086510A (en) | 2018-05-29 |
Family
ID=62175248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711326566.3A Pending CN108086510A (en) | 2017-12-13 | 2017-12-13 | The complete double ranks of assembled slide damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN108086510A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409604A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of prestressing force assembled steel frame damping by friction structural system and its design method |
| CN113175260A (en) * | 2021-05-12 | 2021-07-27 | 镇江知名建设工程有限公司 | Support type staged friction damper |
| CN115009508A (en) * | 2022-08-08 | 2022-09-06 | 成都飞机工业（集团）有限责任公司 | Zero-length launching unmanned aerial vehicle jettisonable vertical fin structure |
| CN115717494A (en) * | 2022-12-02 | 2023-02-28 | 广州大学 | Composite type double-order damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3360589B2 (en) * | 1997-12-11 | 2002-12-24 | 日本鋼管株式会社 | Brace material and its mounting structure |
| CN202039469U (en) * | 2011-01-05 | 2011-11-16 | 西南交通大学 | Friction energy dissipation device for structure |
| CN106013922A (en) * | 2016-07-19 | 2016-10-12 | 天津职业技术师范大学 | Double-phase friction damper and damping method thereof |
-
2017
- 2017-12-13 CN CN201711326566.3A patent/CN108086510A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3360589B2 (en) * | 1997-12-11 | 2002-12-24 | 日本鋼管株式会社 | Brace material and its mounting structure |
| CN202039469U (en) * | 2011-01-05 | 2011-11-16 | 西南交通大学 | Friction energy dissipation device for structure |
| CN106013922A (en) * | 2016-07-19 | 2016-10-12 | 天津职业技术师范大学 | Double-phase friction damper and damping method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409604A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of prestressing force assembled steel frame damping by friction structural system and its design method |
| CN113175260A (en) * | 2021-05-12 | 2021-07-27 | 镇江知名建设工程有限公司 | Support type staged friction damper |
| CN115009508A (en) * | 2022-08-08 | 2022-09-06 | 成都飞机工业（集团）有限责任公司 | Zero-length launching unmanned aerial vehicle jettisonable vertical fin structure |
| CN115717494A (en) * | 2022-12-02 | 2023-02-28 | 广州大学 | Composite type double-order damper |
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