CN208251355U - A kind of double-slider piezoelectricity SMA composite shock-absorbing device - Google Patents
A kind of double-slider piezoelectricity SMA composite shock-absorbing device Download PDFInfo
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- CN208251355U CN208251355U CN201820762910.7U CN201820762910U CN208251355U CN 208251355 U CN208251355 U CN 208251355U CN 201820762910 U CN201820762910 U CN 201820762910U CN 208251355 U CN208251355 U CN 208251355U
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- sliding block
- cabinet
- slider
- sma
- side wall
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Abstract
A kind of double-slider piezoelectricity SMA composite shock-absorbing device is mainly made of cabinet, sliding block, sliding block cover board, anchor case, location hole, marmem (SMA) silk, operating bar, connecting rod, fixed link and piezoelectric actuator.Operating bar passes through cabinet left side wall and fixes with left slider；Connecting rod one end is fixed with left slider, and the other end passes through anchor case and fixes with right sliding block, and fixed link is mounted on the right side wall of cabinet.There is a pair of of sliding block at left and right sides of cabinet, have on each sliding block along the screwed through hole in horizontal axis direction, and there are two the holes for placing piezoelectric actuator along short transverse, its hole depth is greater than the height of piezoelectric ceramics, respectively there is a small cylinder at position corresponding with hole on each sliding block cover board, and the height after being put into sliding block is more slightly higher than damping device wall box.There is the cuboid anchor case of a uncovered in the middle part of cabinet, front-rear side walls and wall box contact position have and respectively have a positioning hole.SMA pass through sliding block, and one end is fixed with wall box, and another section is anchored in anchor case.
Description
Technical field
The invention belongs to technical field of civil engineering, are related to structural hybrid control, in particular to a kind of double-slider piezoelectricity SMA
Composite shock-absorbing device.
Background technique
Mixing control is while to install the vibration of active/semi-automatic control device and passive control device in a kind of structure
Dynamic control technology.The control effect of active control is good, and control system is complicated, at high price, though passive control installation is simple, makes
Valence is cheap, and performance is stablized, but due to that cannot adjust control force in real time, control effect is poor.Therefore, the two is mounted on same
It works independently jointly in structure, respective advantage can be played, and the defect and deficiency when the work of single control device can be made up,
The stability for improving entire control system operation, improves its control effect.
Intellectual material has become the research heat in civil structure vibration control field as a kind of emerging multifunctional material
Point, and plentiful and substantial research achievement is achieved, it has broad application prospects.Marmem (SMA) and piezoelectric ceramics are soil
The common intellectual material of work engineering field, SMA passive damping device can be made in the former, and performance is stablized, and energy dissipation capacity is strong；The latter is past
Past that half active energy consumer of piezoelectricity is made in conjunction with frcition damper, electrostrictive response is fast, and can adjust control force in real time.It fills
It is divided to and can be made into piezoelectric-SMA composite shock-absorbing device using the advantages of two kinds of dampers.Such as publication number CN105350679A and
The piezoelectric-SMA composite shock-absorbing device of CN105201099A design is all single sliding block molding box formula damping device, and such sliding block is sliding
In certainly will will cause the uneven of frictional force；And the former SMA and piezoelectric friction damper work at the same time, when small shake starting compared with
Difficulty, and the latter SMA unit and piezoelectric friction damper successively work, although easily starting up, the pulling force of later period SMA is very
Greatly, piezoelectricity control force adjustable extent is smaller at this time, and semi- active control efficiency is lower.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of double-slider piezoelectricity SMA is compound
Damping device, frictional force is uniform, energy consumption cell layout is reasonable, when medium-small leve vibration occurs, piezoelectricity friction energy consumption unit
It can carry out semi- active control；When big vibration occurs, piezoelectricity friction energy consumption unit first works, and then SMA interventions, further mention
Highly energy-consuming ability.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of double-slider piezoelectricity SMA composite shock-absorbing device, including cabinet 1 have been set gradually from left to right in the cabinet 1
Left slider 2, anchor case 4 and the right sliding block 3 slided in left-right direction, operating bar 10 pass through the left side of cabinet 1 left side wall and left slider 2
Wall is fixedly connected；9 one end of connecting rod and the right side wall of left slider 2 are fixed, and the other end passes through the left side wall of anchor case 4 and right sliding block 3
Fixed, fixed link 11 is mounted on the right side wall of cabinet 1, and there are two for placing Piezoelectric Driving on left slider 2 and right sliding block 3
Horizontal through hole on the vertical hole of device 7 and a front-rear direction, one 5 one end of SMA silk are fixed with 1 left side wall of cabinet, separately
One end is fixed on 4 left side wall of anchor case after passing through left slider 2；26 one end of SMA silk is fixed with 1 right side wall of cabinet, and the other end passes through
It is fixed on after right sliding block 3 on 4 right side wall of anchor case.
Respectively there is a positioning hole 13 at the front-rear side walls center of the anchor case 4, location hole 13 runs through the side wall of cabinet 1, guarantees
Anchor case 4 place after position, make equal length when SMA silk 1 and the fixation of SMA silk 26.
The operating bar 10, left slider 2, connecting rod 9 and right sliding block 3 constitute piezoelectricity friction energy consumption piston, as one
Grade energy consumption unit, works first when vibrating and occurring；The anchor case 4, SMA silk 1 and SMA silk 26 have collectively constituted second level consumption
Energy unit,
The anchor case 4 is a half-headed rectangle small box.
4 height of anchor case is more slightly lower than 1 side wall of damping device cabinet, to prevent from rubbing with cabinet 1.
The vertical holes hole is greater than the height of piezoelectric actuator 7 deeply, and the top of the left slider 2 and right sliding block 3 is matched
It is equipped with a sliding block cover board 14, there is a small cylinder 15 at position corresponding with vertical hole respectively on each sliding block cover board 14.It is sliding
Height after block cover board 14 is matched with sliding block is more slightly higher than 1 side wall of cabinet, to guarantee the application of frictional force.
The horizontal through hole is located at the central location of sliding block or so and up and down direction, and horizontal through hole has spiral shell
Line.
There are the long and narrow hole slot 12 of left and right directions, hole slot 12 and the horizontal through holes for the front-rear side walls of the cabinet 1
Corresponding, the conducting wire 8 of piezoelectric actuator 7 passes through vertical hole, horizontal through hole and hole slot 12 and connect with external power supply, anti-limited slip block
It is torn in motion process.
The anchor case 4 is located at the central location of cabinet 1, and left slider 2 and 3 bilateral symmetry of right sliding block are distributed in the two of anchor case 4
Side.
Compared with prior art, the beneficial effects of the present invention are: energy consumption cell layout is reasonable, frictional force is uniform, has special
SMA anchorage box, SMA are fixed conveniently；Piezoelectricity friction unit first works, and works after SMA unit, and semi- active control is high-efficient,
Applied widely, energy dissipation capacity is good.
Detailed description of the invention
Fig. 1 be double-slider piezoelectric-SMA composite shock-absorbing device of the present invention 3 dimensional drawing (without sliding block cover board and
Damper top cover of box).
Fig. 2 is the profile in plan of double-slider piezoelectric-SMA composite shock-absorbing device of the present invention.
Fig. 3 is the top view and main view of sliding block sliding block cover board of the present invention.
In figure: 1. damper cabinets；2. left slider；3. right sliding block；4. anchor case；5.SMA silk one；6.SMA silk two；7. piezoelectricity
Driver；8. piezoelectric actuator conducting wire；9. connecting rod；10. operating bar；11. fixed link；12. hole slot；13. location hole；14. sliding
Block cover board；15. small cylinder.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of double-slider piezoelectricity SMA composite shock-absorbing device of the present invention, mainly by cabinet 1, a left side
Sliding block 2, right sliding block 3, sliding block cover board 14, anchor case 4, location hole 13, SMA silk 1, SMA silk 26, piezoelectric actuator 7, operating bar
10, connecting rod 9, fixed link 11, hole slot 12 etc. form.
Anchor case 4 is a half-headed rectangle small box, positioned at the central location of cabinet 1, highly than damping device cabinet 1
Side wall is slightly lower, to prevent from rubbing with cabinet 1.Anchor case 4 provides adequate space for SMA fixations, and as slide mass
SMA tension energy consumptions are driven, while comparing entity sliding block, reduce the total weight of device.
Left slider 2 and 3 bilateral symmetry of right sliding block are distributed in the two sides of anchor case 4, on left slider 2 and right sliding block 3 there are two
The screwed water being connected to vertical hole on vertical hole and a front-rear direction for placing piezoelectric actuator 7
Flat through hole, vertical holes hole are greater than the height of piezoelectric actuator 7 deeply, and horizontal through hole is located at sliding block or so and up and down direction
Central location, on the one hand horizontal through hole is convenient for the connection of rod piece, on the other hand can play the effect of loss of weight.It is corresponding to it
Cabinet 1 front-rear side walls there are hole slot 12 long and narrow in left-right direction, the conducting wire 8 of piezoelectric actuator passes through vertical hole, water
Flat through hole and hole slot 12 are connect with external power supply, prevent from being torn during slide block movement.
The top of left slider 2 and right sliding block 3 is each equipped with a sliding block cover board 14, on each sliding block cover board 14 with vertical holes
There is a small cylinder 15 at the corresponding position in hole respectively.Height after sliding block cover board 14 is matched with sliding block is more slightly higher than 1 side wall of cabinet, with
Guarantee the application of frictional force.
Operating bar 10 passes through 1 left side wall of cabinet and is fixedly connected with the left side wall of left slider 2；9 one end of connecting rod and left slider 2
Right side wall fix, the other end passes through anchor case 4 and the left side wall of right sliding block 3 and fixes, and fixed link 11 is mounted on the right side wall of cabinet 1
On.
One 5 one end of SMA silk is fixed with 1 left side wall of cabinet, and the other end is fixed on 4 left side wall of anchor case after passing through left slider 2；
26 one end of SMA silk is fixed with 1 right side wall of cabinet, and the other end is fixed on 4 right side wall of anchor case after passing through right sliding block 3.
Operating bar 10, left slider 2, connecting rod 9 and right sliding block 3 constitute piezoelectricity friction energy consumption piston, consume as level-one
Energy unit, works first when vibrating and occurring；Anchor case 4, SMA silk 1 and SMA silk 26 have collectively constituted second level energy consumption unit, when
When vibration is reinforced, work is intervened.
To guarantee that the position after anchor case 4 is placed is placed in the middle, and make equal length when SMA silk 1 and the fixation of SMA silk 26, anchor
The side wall that a positioning hole 13 passes through cabinet 1 is respectively provided at the front-rear side walls center of case 4, when SMA fixed, 4 two sides of anchor case are first
It is inserted into location hole 13 with locating rod, then SMA silk 1 and SMA silk 26 are successively installed respectively, after SMA are stablized, extracts positioning
Bar.
Cabinet 1 and top cover are connected with fixing screws, to provide between the sliding block and 1 bottom plate of cabinet and top cover after being put into cover board
Frictional force (top cover refers to the lid of damper cabinet 1, it is in the upper surface of sliding block cover board 14), adjust piezoelectric actuator 7 it is defeated
Frictional force can be changed in real time by entering voltage, realize semi- active control.Even if electric system is failed, initial frictional and SMA according to
It can so consume energy.
When medium-small leve vibration occurs, level-one energy consumption unit works first, and sliding block starts to horizontally slip, and adjusts pressure at this time
The voltage of electric drive 7 can change the size of frictional force in real time, realize semi- active control；It is sliding when vibration further strengthens
Block moves to 4 side wall of anchor case, and anchor case 4 is driven to move together, and SMA beginning tension energy consumptions, cushioning ability further increases.
Claims (10)
1. a kind of double-slider piezoelectricity SMA composite shock-absorbing device, including cabinet (1), which is characterized in that from a left side in the cabinet (1)
It is disposed with the left slider (2), anchor case (4) and right sliding block (3) slided in left-right direction to the right side, operating bar (10) passes through cabinet
(1) left side wall is fixedly connected with the left side wall of left slider (2)；Connecting rod (9) one end and the right side wall of left slider (2) are fixed, separately
One end passes through anchor case (4) and the left side wall of right sliding block (3) is fixed, and fixed link (11) is mounted on the right side wall of cabinet (1), left cunning
There are two on the vertical hole and a front-rear direction for placing piezoelectric actuator (7) on block (2) and right sliding block (3)
Horizontal through hole, one (5) one end of SMA silk are fixed with cabinet (1) left side wall, and the other end is fixed on anchor case after passing through left slider (2)
(4) on left side wall；Two (6) one end of SMA silk is fixed with cabinet (1) right side wall, and the other end is fixed on anchor case after passing through right sliding block (3)
(4) on right side wall.
2. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the front and back of the anchor case (4)
Respectively have at side wall center a positioning hole (13), location hole (13) runs through the side wall of cabinet (1), after ensure that anchor case (4) are placed
Position makes equal length when SMA silk one (5) and fixed SMA silk two (6).
3. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the operating bar (10), a left side
Sliding block (2), connecting rod (9) and right sliding block (3) constitute piezoelectricity friction energy consumption piston, as level-one energy consumption unit, work as vibration
It works first when generation；The anchor case (4), SMA silk one (5) and SMA silk two (6) have collectively constituted second level energy consumption unit.
4. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the anchor case (4) is a nothing
The rectangle small box of top cover.
5. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that anchor case (4) the height ratio
Damping device cabinet (1) side wall is slightly lower, to prevent from rubbing with cabinet (1).
6. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the vertical holes hole is deep
Greater than the height of piezoelectric actuator (7), a sliding block cover board is each equipped at the top of the left slider (2) and right sliding block (3)
(14), position corresponding with vertical hole has a small cylinder (15) respectively on each sliding block cover board (14).
7. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 6, which is characterized in that the sliding block cover board (14)
Height after matching with sliding block is more slightly higher than cabinet (1) side wall, to guarantee the application of frictional force.
8. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that described horizontal through hole location
In sliding block or so and the central location of up and down direction, and horizontal through hole has screw thread.
9. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the front and back of the cabinet (1)
Side wall is there are the long and narrow hole slot (12) of left and right directions, and hole slot (12) is corresponding with the horizontal through hole, piezoelectric actuator (7)
Conducting wire (8) passes through vertical hole, horizontal through hole and hole slot (12) and connect with external power supply, prevents from being pulled during slide block movement
It is disconnected.
10. double-slider piezoelectricity SMA composite shock-absorbing device according to claim 1, which is characterized in that the anchor case (4) is located at
The central location of cabinet (1), left slider (2) and right sliding block (3) are symmetrically distributed in the two sides of anchor case (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762910.7U CN208251355U (en) | 2018-05-21 | 2018-05-21 | A kind of double-slider piezoelectricity SMA composite shock-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762910.7U CN208251355U (en) | 2018-05-21 | 2018-05-21 | A kind of double-slider piezoelectricity SMA composite shock-absorbing device |
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| Publication Number | Publication Date |
|---|---|
| CN208251355U true CN208251355U (en) | 2018-12-18 |
Family
ID=66480879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820762910.7U Expired - Fee Related CN208251355U (en) | 2018-05-21 | 2018-05-21 | A kind of double-slider piezoelectricity SMA composite shock-absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208251355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442557A (en) * | 2018-05-21 | 2018-08-24 | 黄淮学院 | A kind of double-slider piezoelectricity SMA composite shock-absorbing devices |
| CN109653234A (en) * | 2019-01-29 | 2019-04-19 | 中建二局第二建筑工程有限公司 | A kind of ultra-toughness concrete-bridge suspension system |
-
2018
- 2018-05-21 CN CN201820762910.7U patent/CN208251355U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442557A (en) * | 2018-05-21 | 2018-08-24 | 黄淮学院 | A kind of double-slider piezoelectricity SMA composite shock-absorbing devices |
| CN108442557B (en) * | 2018-05-21 | 2023-12-26 | 黄淮学院 | Double-slider piezoelectric SMA composite damping device |
| CN109653234A (en) * | 2019-01-29 | 2019-04-19 | 中建二局第二建筑工程有限公司 | A kind of ultra-toughness concrete-bridge suspension system |
| CN109653234B (en) * | 2019-01-29 | 2020-07-10 | 中建二局第二建筑工程有限公司 | Super tough concrete bridge shock absorber system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20190521 |