CN108397030A - A kind of band SMA Self-resetting cambered surface friction-changing dampers - Google Patents
A kind of band SMA Self-resetting cambered surface friction-changing dampers Download PDFInfo
- Publication number
- CN108397030A CN108397030A CN201810437291.9A CN201810437291A CN108397030A CN 108397030 A CN108397030 A CN 108397030A CN 201810437291 A CN201810437291 A CN 201810437291A CN 108397030 A CN108397030 A CN 108397030A
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- Prior art keywords
- friction
- sma
- babinet
- wall
- plate
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Classifications
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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 kind of band SMA Self-resetting cambered surface friction-changing dampers, mass block is located in friction babinet, and upper surface, lower surface and the inner wall of friction babinet of mass block fit, mass block front surface and rear surface are bonded with friction cabinet wall part, left side fixed plate is fixed on the left side of friction babinet, right side fixed plate is fixed on the right side of friction babinet, wherein, each SMA one end is connected with the left side of mass block in first group SMA, and each SMA of other end is connected with the inner wall of friction babinet left end in first group SMA；Each SMA one end is connected with the right side of mass block in second group SMA, each SMA of other end is connected with the inner wall of friction babinet right end in second group SMA, the end of connecting rod is fixed on after being inserted in across left side fixed plate in the babinet that rubs on the left side of mass block, it is fixed with otic placode in the fixed plate of right side, the damper can adapt to the earthquake of different intensity grades, and can be automatically restored to after being deformed as former state.
Description
Technical field
The invention belongs to energy-consuming shock absorber technical fields, are related to a kind of band SMA Self-resetting cambered surfaces change frictional damping
Device.
Background technology
In recent decades, earthquake occurs again and again, is also increasingly stringenter to Antiseismic building performance requirement.Traditional architecture passes through
The plastic deformation of structure makes structure itself destroy come the seismic energy that dissipates.If the consumption of non-structural element is arranged in the structure
Energy original paper can mitigate the dynamic response of structure by the dissipative cell energy that passively reciprocal relative deformation dissipative structure vibrates,
Reduce the deformation of structure.Frcition damper is that the commonly used energy-consumption shock-absorption device in engineering, friction common at present hinder at present
Buddhist nun's device mainly has：Conventional friction damper, pall frcition dampers, sumitomo frcition dampers.Conventional friction damper
Frictional force cannot change, and can not adapt to the earthquake of different intensity grades, and larger residual deformation is had after being deformed, it is difficult to
Restore as former state, these conditions limit effectiveness in vibration suppression and the use of conventional friction damper.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, a kind of band SMA Self-resetting cambered surfaces are provided
Friction-changing damper, the damper can adapt to the earthquake of different intensity grades, and can be automatically restored to after being deformed
As former state.
In order to achieve the above objectives, band SMA of the present invention Self-resetting cambered surface friction-changing dampers include friction case
Body, mass block, first group SMA, second group SMA and connecting rod；
Mass block is located in friction babinet, and the upper surface of mass block, lower surface and the inner wall of friction babinet fit, matter
Gauge block front surface and rear surface are bonded with friction cabinet wall part, and left side fixed plate is fixed on the left side for the babinet that rubs,
Rub babinet right side on be fixed with right side fixed plate, wherein each SMA one end and mass block in first group SMA
Left side is connected, and each SMA of other end is connected with the inner wall of friction babinet left end in first group SMA；Second group of SMA
Each SMA one end is connected with the right side of mass block in silk, each SMA of other end and friction case in second group SMA
The inner wall of body right end is connected, the end of connecting rod across left side fixed plate be inserted in friction babinet after be fixed on mass block
On left side, otic placode is fixed in the fixed plate of right side；
By centre to both sides, the degree of roughness for the cabinet wall that rubs gradually increases.
Babinet rub by upper cambered surface friction plate, lower camber side friction plate, trailing flank friction plate, leading flank friction plate, left-hand end
Plate and right-hand end board group at, wherein the upper surface of mass block and the inner wall of upper cambered surface friction plate fit；The lower surface of mass block
It fits with the inner wall of lower camber side friction plate；The front surface of mass block is bonded with the inner wall section of leading flank friction plate；Mass block
Rear surface be bonded with the inner wall section of trailing flank friction plate.
Otic placode is fixed on the center position of right side fixed plate.
Mass block is made of sliding block and the rubber spring being adhered in shoe surface, wherein rubber spring and friction babinet
Inner wall fit.
Several first adjusting bolts pass through the left side of left side fixed plate and the babinet that rubs to be fixed on left side fixed plate and rub
It wipes on babinet；Second adjusting bolt passes through right side fixed plate and the right side for the babinet that rubs that right side fixed plate is fixed on friction case
On body.
Each SMA of left end is fixed in the first adjusting bolt in first group SMA；Each SMA in second group SMA
Right end is fixed in the second adjusting bolt, and SMA numbers are SMA in four, second group SMA in first group SMA
Number be four, first group SMA in four SMA four angles for being individually fixed in sliding block left side position；Second
The position at four SMA four angles for being individually fixed in sliding block right side in group SMA.
The middle position of left side fixed plate is provided with the hole for being passed through for connecting rod, wherein the diameter ratio of hole
The big 1-2mm of diameter of connecting rod.
Rubber spring is variable section structure, and the adhesive surface of sliding block and rubber spring is male and fomale(M＆F) structure；
The inner wall of upper cambered surface friction plate, the inner wall of lower camber side friction plate, the inner wall of leading flank friction plate and trailing flank friction
The inner wall of plate is divided into several friction areas, and is sequentially increased from centre to the degree of roughness of each friction area in both sides.
The end of connecting rod is connected with the center of mass block left side.
Under original state, the curvature phase on rubber spring surface and upper cambered surface friction plate inner wall and lower camber side friction plate inner wall
Together.
The invention has the advantages that：
Band SMA of the present invention Self-resetting cambered surface friction-changing dampers are when specific operation, by connecting rod and ear
Plate is connected with external structure, and when by geological process, connecting rod stress, connecting rod drives mass block movement, when the external world makees
When being firmly more than the stiction between mass block and friction plate, mass block slides, and is generated between mass block and friction plate
Force of sliding friction, to consume part energy, since SMA have super-elasticity, no matter mass block is moved to the left or moves right
It is dynamic to have one group of SMA tension, another part energy can be consumed, due to being austenite under SMA room temperature, is caused when generating pulling force
Phase transformation shows phase transformation pseudo-elastic effects, after geological process, generates reverse transformation immediately, restores to original sample, to kinoplaszm
Gauge block returns back to initial position, so that the present invention can automatically restore to as former state after being deformed.In addition, by centre to two
The degree of roughness on side, the cabinet wall that rubs gradually increases, with the increase of mass block displacement, mass block and friction cabinet wall it
Between frictional force gradually increase, to adapt to the earthquake of different intensity grades, simple structure is cheap, have wide application
Foreground.
Description of the drawings
Fig. 1 is the front view of invention；
Fig. 2 is the structural schematic diagram of the present invention；
Fig. 3 is the left view of the present invention；
Fig. 4 is the right view of the present invention；
Fig. 5 is the sectional view in the directions A-A in Fig. 1；
Fig. 6 is the sectional view in the directions B-B in Fig. 1；
Fig. 7 is the detail view of the friction 456 inner wall striped of babinet in the present invention.
Wherein, 1 it is connecting rod, 21 be left side fixed plate, 22 be right side fixed plate, 31 be the first adjusting bolt, 32 is the
Two adjusting bolts, 41 be left side end plate, 42 be right side end plate, 51 be upper cambered surface friction plate, 52 be lower camber side friction plate, 61 be before
Side friction plate, 62 be trailing flank friction plate, 456 be friction babinet, 7 be SMA, 8 be sliding block, 9 be rubber spring, 10 be ear
Plate.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1 and Fig. 2, band SMA of the present invention Self-resetting cambered surface friction-changing dampers include friction babinet
456, mass block, first group of SMA silk, 7, second groups of SMA silks 7 and connecting rod 1；Mass block is located in friction babinet 456, and quality
The inner wall of the upper surface of block, lower surface and the babinet 456 that rubs fits, mass block front surface and rear surface and friction babinet 456
Inner wall section is bonded, and left side fixed plate 21 is fixed on the left side for the babinet 456 that rubs, solid on the right side of babinet 456 that rubs
Surely there is right side fixed plate 22, wherein one end of each SMA silks 7 is connected with the left side of mass block in first group of SMA silk 7, and first
The other end of each SMA silks 7 is connected with the inner wall of friction 456 left end of babinet in group SMA silks 7；It is SMA each in second group of SMA silk 7
7 one end is connected with the right side of mass block, the other end of each SMA silks 7 and friction 456 right end of babinet in second group of SMA silk 7
Inner wall be connected, the end of connecting rod 1 across left side fixed plate 21 be inserted in friction babinet 456 after be fixed on mass block
On left side, otic placode 10 is fixed in right side fixed plate 22；By centre arrive both sides, friction 456 inner wall of babinet degree of roughness by
It is cumulative big, wherein otic placode 10 is fixed on the center position of right side fixed plate 22.Under original state, 9 surface of rubber spring with it is upper
The curvature of 52 inner wall of 51 inner wall of cambered surface friction plate and lower camber side friction plate is identical；The end of connecting rod 1 and mass block left side
Center is connected.
Babinet 456 rub by upper cambered surface friction plate 51, lower camber side friction plate 52, trailing flank friction plate 62, leading flank friction
Plate 61, left side end plate 41 and right side end plate 42 form, wherein the upper surface of mass block and the inner wall of upper cambered surface friction plate 51 are affixed
It closes；The lower surface of mass block and the inner wall of lower camber side friction plate 52 fit；The front surface of mass block and leading flank friction plate 61
Inner wall section fitting；The rear surface of mass block is bonded with the inner wall section of trailing flank friction plate 62.
Mass block is made of sliding block 8 and the rubber spring 9 being adhered on 8 surface of sliding block, wherein rubber spring 9 and friction
The inner wall of babinet 456 fits；Several first adjusting bolts 31 pass through the left side of left side fixed plate 21 and the babinet 456 that rubs will
Left side fixed plate 21 is fixed on friction babinet 456；Second adjusting bolt 32 passes through right side fixed plate 22 and the babinet 456 that rubs
Right side fixed plate 22 is fixed on friction babinet 456 by right side.Wherein, the left end of each SMA silks 7 is fixed in first group of SMA silk 7
In in the first adjusting bolt 31；The right end of each SMA silks 7 is fixed in the second adjusting bolt 32 in second group of SMA silk 7, and first
The number of SMA silks 7 is four in group SMA silks 7, and the number of SMA silks 7 is four in second group of SMA silk 7, in first group of SMA silk 7
Four SMA silks 7 be individually fixed in 8 left side of sliding block four angles position；Four 7 points of SMA silks in second group of SMA silk 7
It is not fixed on the position at four angles of 8 right side of sliding block.
The middle position of left side fixed plate 21 is provided with the hole for being passed through for connecting rod 1, wherein the diameter of hole
It is bigger 1-2mm than the diameter of connecting rod 1；Rubber spring 9 is variable section structure, and the adhesive surface of sliding block 8 and rubber spring 9 is male and fomale(M＆F)
Structure；The inner wall of upper cambered surface friction plate 51, the inner wall of lower camber side friction plate 52, the inner wall of leading flank friction plate 61 and trailing flank are rubbed
The inner wall of wiping board 62 is divided into several friction areas, and is sequentially increased from centre to the degree of roughness of each friction area in both sides.
When in use, connecting rod 1 and otic placode 10 are connected in external structure, when bearing applied external force, mass block exists
It is moved in friction babinet 456 under the action of connecting rod 1, wherein the displacement that mass block is occurred by 1 pulling force of connecting rod is bigger, then
Upper cambered surface friction plate 51 and lower camber side friction plate 52 can be to pressure and frictional force that rubber spring 9 generates just in friction babinet 456
It is bigger, to consume energy；The rubber spring 9 is variable cross-section body structure, protruding parts and leading flank friction plate 61 and trailing flank
Friction plate 62 comes into full contact with, to generate force of sliding friction.
The adhesive surface of sliding block 8 and rubber spring 9 is that male and fomale(M＆F) structure is increased simultaneously with increasing area cohesive between the two
Big snap-in force, to improve the globality of the two, in addition, be bonded by industrial glue between rubber spring 9 and sliding block 8, globality
Preferably.
With reference to figure 5 and Fig. 7, in addition, it is necessary to which explanation, is increased successively from centre to the degree of roughness of each friction area in both sides
Greatly, with the increase of mass block displacement, the frictional force of mass block and friction 456 inner wall of babinet gradually increases, to adapt to different shakes
The earthquake of grade, in practical operation, by changing the shape of striped on each friction area, to change the coarse journey of each friction area
Degree.
Due to being austenite under 7 room temperature of SMA silks, causes phase transformation when generating pulling force, phase transformation pseudo-elastic effects are shown, on ground
After shake effect, reverse transformation is generated immediately, is restored to original sample, to drive mass block to return back to initial position, so that this
Invention can automatically restore to as former state after being deformed.
Claims (10)
1. a kind of band SMA Self-resetting cambered surface friction-changing dampers, which is characterized in that including friction babinet (456), quality
Block, first group SMA (7), second group SMA (7) and connecting rod (1)；
Mass block is located in friction babinet (456), and the inner wall phase of the upper surface of mass block, lower surface and friction babinet (456)
Fitting, mass block front surface and rear surface are bonded with friction babinet (456) inner wall section, on the left side of friction babinet (456)
It is fixed with left side fixed plate (21), right side fixed plate (22) is fixed on the right side of friction babinet (456), wherein first group
The one end of SMA each (7) is connected with the left side of mass block in SMA (7), in first group SMA (7) SMA each (7)
The other end is connected with the inner wall of friction babinet (456) left end；The one end of SMA each (7) and quality in second group SMA (7)
The right side of block is connected, the inner wall of the other end of SMA each (7) and friction babinet (456) right end in second group SMA (7)
Be connected, the end of connecting rod (1) across left side fixed plate (21) be inserted in friction babinet (456) after be fixed on mass block
On left side, otic placode (10) is fixed in right side fixed plate (22)；
By centre to both sides, the degree of roughness of friction babinet (456) inner wall gradually increases.
2. band SMA according to claim 1 Self-resetting cambered surface friction-changing dampers, which is characterized in that friction babinet
(456) by upper cambered surface friction plate (51), lower camber side friction plate (52), trailing flank friction plate 62), it is leading flank friction plate (61), left
Side end panel (41) and right side end plate (42) composition, wherein the upper surface of mass block and the inner wall of upper cambered surface friction plate (51) are affixed
It closes；The lower surface of mass block and the inner wall of lower camber side friction plate (52) fit；The front surface of mass block and leading flank friction plate
(61) inner wall section fitting；The rear surface of mass block is bonded with the inner wall section of trailing flank friction plate (62).
3. band SMA according to claim 1 Self-resetting cambered surface friction-changing dampers, which is characterized in that otic placode (10)
It is fixed on the center position of right side fixed plate (22).
4. band SMA according to claim 2 Self-resetting cambered surface friction-changing dampers, which is characterized in that mass block by
Sliding block (8) and rubber spring (9) composition being adhered on sliding block (8) surface, wherein rubber spring (9) and friction babinet (456)
Inner wall fit.
5. band SMA according to claim 4 Self-resetting cambered surface friction-changing dampers, which is characterized in that first is adjusted
Bolt (31) passes through left side fixed plate (21) and the left side for the babinet (456) that rubs that left side fixed plate (21) is fixed on friction case
On body (456)；Second adjusting bolt (32) passes through right side fixed plate (22) and the right side for the babinet (456) that rubs to fix right side
Plate (22) is fixed on friction babinet (456).
6. band SMA according to claim 5 Self-resetting cambered surface friction-changing dampers, which is characterized in that first group of SMA
The left end of SMA each (7) is fixed in the first adjusting bolt (31) in silk (7)；In second group SMA (7) SMA each (7)
Right end is fixed in the second adjusting bolt (32), and the number of SMA (7) is four in first group SMA (7), second group of SMA
The number of SMA (7) is four in silk (7), and four SMA (7) in first group SMA (7) are individually fixed in sliding block (8) left side
The position at four angles of side；Four SMA (7) in second group SMA (7) are individually fixed in the four of sliding block (8) right side
The position at a angle.
7. band SMA according to claim 1 Self-resetting cambered surface friction-changing dampers, which is characterized in that left side is fixed
The middle position of plate (21) is provided with the hole for being passed through for connecting rod (1), wherein the diameter of hole is than connecting rod (1)
The big 1-2mm of diameter.
8. band SMA according to claim 4 Self-resetting cambered surface friction-changing dampers, which is characterized in that rubber spring
(9) it is variable section structure, the adhesive surface of sliding block (8) and rubber spring (9) is male and fomale(M＆F) structure；
The inner wall of upper cambered surface friction plate (51), the inner wall of lower camber side friction plate (52), leading flank friction plate (61) inner wall and after
The inner wall of side friction plate (62) is divided into several friction areas, and from centre to the degree of roughness of each friction area in both sides according to
Secondary increase.
9. band SMA according to claim 1 Self-resetting cambered surface friction-changing dampers, which is characterized in that connecting rod (1)
End be connected with the center of mass block left side.
10. band SMA according to claim 4 Self-resetting cambered surface friction-changing dampers, which is characterized in that original state
Under, rubber spring (9) surface is identical as the curvature of upper cambered surface friction plate (51) inner wall and lower camber side friction plate (52) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437291.9A CN108397030A (en) | 2018-05-09 | 2018-05-09 | A kind of band SMA Self-resetting cambered surface friction-changing dampers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437291.9A CN108397030A (en) | 2018-05-09 | 2018-05-09 | A kind of band SMA Self-resetting cambered surface friction-changing dampers |
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| Publication Number | Publication Date |
|---|---|
| CN108397030A true CN108397030A (en) | 2018-08-14 |
Family
ID=63101825
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|---|---|---|---|
| CN201810437291.9A Pending CN108397030A (en) | 2018-05-09 | 2018-05-09 | A kind of band SMA Self-resetting cambered surface friction-changing dampers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024963A (en) * | 2018-08-27 | 2018-12-18 | 西安建筑科技大学 | A kind of sliding cartridge type SMA composite damper |
| CN109024963B (en) * | 2018-08-27 | 2024-05-03 | 西安建筑科技大学 | Sliding cylinder type SMA composite damper |
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| CN105804266A (en) * | 2016-05-27 | 2016-07-27 | 西安建筑科技大学 | Rod-shaft type piezoelectric-SMA incorporated friction damper |
| CN208184350U (en) * | 2018-05-09 | 2018-12-04 | 西安建筑科技大学 | A kind of band SMA Self-resetting cambered surface friction-changing dampers |
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| KR20080065110A (en) * | 2007-01-08 | 2008-07-11 | 양경택 | Frictional shape memory alloy damper |
| CN104763057A (en) * | 2015-03-26 | 2015-07-08 | 东南大学 | Shape Memory Alloy (SMA)-friction pendulum clearance compound isolation bearing |
| CN104763069A (en) * | 2015-03-27 | 2015-07-08 | 燕山大学 | SMA-piezoelectric frictional combined damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109024963A (en) * | 2018-08-27 | 2018-12-18 | 西安建筑科技大学 | A kind of sliding cartridge type SMA composite damper |
| CN109024963B (en) * | 2018-08-27 | 2024-05-03 | 西安建筑科技大学 | Sliding cylinder type SMA composite damper |
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