CN105804266A - Rod-shaft type piezoelectric-SMA incorporated friction damper - Google Patents

Rod-shaft type piezoelectric-SMA incorporated friction damper Download PDF

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Publication number
CN105804266A
CN105804266A CN201610368150.7A CN201610368150A CN105804266A CN 105804266 A CN105804266 A CN 105804266A CN 201610368150 A CN201610368150 A CN 201610368150A CN 105804266 A CN105804266 A CN 105804266A
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CN
China
Prior art keywords
sma
baffle
plate
antivibrator
slide block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610368150.7A
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Chinese (zh)
Inventor
展猛
杨涛
王社良
赵云
黄鑫
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Filing date
Publication date
Application filed by Xian University of Architecture and Technology filed Critical Xian University of Architecture and Technology
Priority to CN201610368150.7A priority Critical patent/CN105804266A/en
Publication of CN105804266A publication Critical patent/CN105804266A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids

Abstract

A rod-shaft type piezoelectric-SMA incorporated friction damper comprises a damper box. A slider is arranged in the damper box and provided with four circular holes, and a piezoelectric ceramic driver with an upper gasket and a lower gasket is arranged in each circular hole. A left retaining plate is arranged on the left of the slider. A right retaining plate is arranged on the right of the slider. A first transverse slide groove is formed between the left lateral wall of the damper box and the left retaining plate to allow the left retaining plate to slide left and right in the first transverse slide groove. A second transverse slide groove is formed between the right lateral wall of the damper box and the right retaining plate to allow the right retaining plate slide left and right in the second transverse slide groove. A plurality of first SMA wires are arranged between the left lateral wall of the damper box and the slider. A plurality of second SMA wires are arranged between the right lateral wall of the damper box and the slider. A plurality of third SMA wires are arranged between the left retaining plate and the right retaining plate. A push-pull rod sequentially penetrates the left lateral wall of the damper box, the left retaining plate and the slider to contact with the right retaining plate in an unfixed manner. The right lateral wall of the damper box is provided with a connecting rod. The rod-shaft type piezoelectric-SMA incorporated friction damper with the resettable slider is high in adaptability and applicable to the field of structure vibration control.

Description

A kind of bar shaft type piezoelectric-SMA composite friction damper
Technical field
The invention belongs to structural vibration control technical field, multiple particularly to a kind of bar shaft type piezoelectric-SMA Close frcition damper.
Background technology
Marmem (SMA) material is the SMART METALS perception of a kind of function admirable, driving material, Utilize its super-elasticity and phase transformation pseudoelasticity performance can make SMA antivibrator, for structural vibration control, Singly it belongs to passive damping device, it is impossible to changes it in real time and controls power.Piezoceramic material be one just have, The functional material of inverse piezoelectric effect, utilizes its inverse piezoelectric effect, can make piezoelectric friction damper.But It is, in order to the deformation making piezoelectric ceramic actuator is the most restrained, to generally require and damp to piezoelectricity friction Device applies a bigger precompression, so likely results in initial frictional excessive, and piezoelectric ceramics drives Exerting oneself and not so good of dynamic device, now the adjustable control scope of frictional force is less, more like individual by dynamic friction Antivibrator;And apply precompression less when, piezoelectric ceramic actuator is exerted oneself the least, equally can not Play damping effect effectively.And the piezoelectric-SMA composite variable of the patent No.: CN101851963A design Friction intelligent damper size is relatively big, is relatively suitable for architecture basics shock insulation, and the scope of application is less.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of bar shaft type piezoelectricity -SMA composite friction damper, is combined SMA and piezoelectric friction damper in one apparatus, strengthens Its damping capacity and the scope of application.
To achieve these goals, the technical solution used in the present invention is:
A kind of bar shaft type piezoelectric-SMA composite friction damper, including antivibrator casing 1, antivibrator casing In have a slide block 2, slide block 2 has four circular hole 5, each circular hole 5 arranges about one band pad 6 Piezoelectric ceramic actuator 21, the left side of slide block 2 arranges right baffle-plate 3, and right side arranges right baffle plate 4, resistance Between left side wall and the right baffle-plate 3 of Buddhist nun's device casing 1, horizontal concrete chute 1 is set, for right baffle-plate 3 at groove In slide in left-right direction, between right side wall and the right baffle plate 4 of antivibrator casing 1, horizontal concrete chute two is set 20, slide in left-right direction in groove for right baffle plate 4, the left side wall of antivibrator casing 1 and slide block 2 Between many SMA silks 1 are set, arrange many between right side wall and the slide block 2 of antivibrator casing 1 SMA silk 2 10, is provided with many SMA silks 3 11, push-pull bar 15 between right baffle-plate 3 and right baffle plate 4 Sequentially pass through the left side wall of antivibrator casing 1, right baffle-plate 3 and slide block 2 to contact with right baffle plate 4 but not solid Fixed, the right side wall of antivibrator casing 1 arranges connecting rod 18.
The left side wall of described antivibrator casing 1 has two hexagonal flange band tooth bolts 1 with pad With fixing SMA silk 1, right side wall has two hexagonal flange band tooth bolts 2 14 with pad with solid Determine SMA silk 2 10.
Each corner of described slide block 2 is respectively arranged with an arcuate socket, and the most through, so that SMA silk 1 Or SMA silk 2 10 passes.
Before and after described antivibrator casing 1, sidewall is respectively arranged with two circular holes 1, and the sidewall of described circular hole 5 is each A circular hole 28, two of which circular hole 28 is had to be respectively communicated with two circular holes 1 of front side wall, another two Two circular holes 1 of individual circular hole 28 and rear wall are respectively communicated with, and the electric wire of piezoelectric ceramic actuator 21 is successively It is connected through circular hole 28, circular hole 1 with external power source.
There are two hexagonal flange band tooth bolts 3 12 on described right baffle-plate 3, right baffle plate 4 has two small sircle holes So that SMA silk 3 11 passes.
Described SMA silk 1 sequentially passes through right baffle-plate 3 and slide block 2 returns and is fixed on antivibrator casing 1 Left side wall on, SMA silk 2 10 sequentially passes through right baffle plate 4 and slide block 2 and returns and be fixed on antivibrator case On the right side wall of body 1, SMA silk 3 11 sequentially passes through slide block 2 and right baffle-plate 3 returns and is fixed on right gear On plate 4.
Baffle ring 1 is had with right baffle-plate 3 contact site, with right baffle plate 4 contact site on described push-pull bar 15 Position has baffle ring 2 17, baffle ring 1 to be positioned at the right side of right baffle-plate 3, and baffle ring 2 17 is positioned at right baffle plate 4 Left side.
Described connecting rod 18 is bolted on outside the right side wall of antivibrator casing 1.
In the present invention, when vibration occurs, first SMA silk 3 11 utilizes the phase transformation pseudoelasticity of self Can passively consume energy, when vibrating higher, SMA silk one 9 or SMA silk 2 10 and piezoelectric ceramics Driver 21 is started working, and now, three is consumed energy simultaneously, has stronger damping capacity.And SMA Silk may also function as reset function while power consumption.
In the present invention, precompressed can be changed by the hexagon socket head cap screw 23 on damping adjusting device lid 22 Power, and then change the initial frictional of slide block 2 and antivibrator lid 22.Regulation external voltage can change Exerting oneself of piezoelectric ceramic actuator 21, thus adjust the control power of antivibrator in real time to realize half actively control System.
When power is off, piezoelectric ceramic actuator 21 cisco unity malfunction, and SMA silk can continue passively Power consumption reaches the purpose of vibration damping.
Compared with prior art, the invention have the advantages that
1. compared to the use of single intellectual material, piezoelectric ceramics and SMA composite friction damper damping effect More preferably, performance is more stable, and adaptability is higher, it is possible to be preferably applied for field of vibration control for fruit.
2. it is designed to the piezoelectric-SMA composite friction damper of bar shaft type, can the direct bar in replacing structure Part or be arranged in diagonal brace position, easy for installation, the scope of application is wider.
3. efficiently solve the fixation problem of SMA silk, a silk is utilized hexagonal flange band through small sircle hole Tooth is bolted to same one end, effectively reduces the difficulty in antivibrator manufacturing process and complexity, reduces Cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the flat sectional drawing of bar shaft type piezoelectric-SMA composite friction damper of the present invention.
Fig. 2 is the side elevational view of bar shaft type piezoelectric-SMA composite friction damper.
Fig. 3 is the profilograph of bar shaft type piezoelectric-SMA composite friction damper.
Fig. 4 is the organigram of right baffle-plate.
Fig. 5 is the organigram of right baffle plate.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
Such as Fig. 1, shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of bar shaft type piezoelectric-SMA compound friction Antivibrator, including antivibrator casing 1, has a slide block 2, slide block 2 has four circular hole in antivibrator casing 5, piezoelectric ceramic actuator 21 is positioned in circular hole 5, is respectively arranged with a pad 6 up and down.The left side of slide block 2 sets Putting right baffle-plate 3, right side arranges right baffle plate 4.Arrange between left side wall and the right baffle-plate 3 of antivibrator casing 1 Horizontal concrete chute 1, slides in groove in left-right direction for right baffle-plate 3, the right side of antivibrator casing 1 Horizontal concrete chute 2 20 is set between wall and right baffle plate 4, slides in left-right direction in groove for right baffle plate 4. Between left side wall and the slide block 2 of antivibrator casing 1, many SMA silks 1, antivibrator casing 1 are set Right side wall and slide block 2 between many SMA silks 2 10 are set, set between right baffle-plate 3 and right baffle plate 4 There are many SMA silks 3 11.Push-pull bar 15 sequentially passes through the left side wall of antivibrator casing 1, right baffle-plate 3 Contact with right baffle plate 4 with slide block 2, but do not fix.The right side wall of antivibrator casing 1 arranges connecting rod 18, Can be fixed with structure by bolt.
Antivibrator casing about 1 sidewall has two hexagonal flange band tooth bolts 1 with pad respectively With hexagonal flange band tooth bolt 2 14, with fixing SMA silk one 9 or SMA silk 2 10, front-rear side walls It is respectively arranged with two circular holes 1.
The each corner of slide block 2 is respectively arranged with an arcuate socket, and the most through, so that SMA silk one 9 or SMA Silk 2 10 passes, and the sidewall of circular hole 5 is respectively arranged with a circular hole 28.
Piezoelectric ceramic actuator 21 is positioned in the circular hole 5 on slide block 2, its electric wire sequentially pass through circular hole 28, Circular hole 1 is connected with external power source.
There are two hexagonal flange band tooth bolts 3 12 on right baffle-plate 3 in antivibrator, right baffle plate 4 has two Small sircle hole is so that SMA silk 3 11 passes.
SMA silk 1 sequentially passes through right baffle-plate 3 and slide block 2 is fixed on the left side wall of antivibrator casing 1, SMA silk 2 10 sequentially passes through right baffle plate 4 and slide block 2 is fixed on the right side wall of antivibrator casing 1, SMA silk 3 11 sequentially passes through slide block 2 and right baffle-plate 3 is fixed on right baffle plate 4.So send out when vibration Time raw, the antivibrator in structure is subject to the pulling force along push-pull bar 15 axis direction or pressure, SMA silk three 11 are always at tension state, and SMA silk one 9 and SMA silk 2 10 always has one to be in tension State.
Specifically, when vibration occurs, first SMA silk 3 11 utilizes the phase transformation pseudoelasticity performance of self Passively consuming energy, when vibrating higher, SMA silk one 9 or SMA silk 2 10 drives with piezoelectric ceramics Dynamic device 21 is started working, and now, three is consumed energy simultaneously, has stronger damping capacity.And SMA silk Reset function is may also function as while power consumption.By the hexagon socket head cap screw on damping adjusting device lid 22 23 change precompression, and then change the initial frictional of slide block 2 and antivibrator lid 22.Outside regulation Portion's voltage can change exerting oneself of piezoelectric ceramic actuator 21, thus adjust in real time the control power of antivibrator with Realize semi-active control.
Baffle ring 1 is had with right baffle-plate 3 contact site, with right baffle plate 4 contact site on described push-pull bar 15 Position has baffle ring 2 17, baffle ring 1 to be positioned at the right side of right baffle-plate 3, and baffle ring 2 17 is positioned at right baffle plate 4 Left side.
When push-pull bar 15 is by pulling force the most to the left, now, right baffle plate 4 is by right rail The left end of 20 blocks transfixion, and right baffle-plate 3 moves under the effect of lattice baffle ring 1 to the left, SMA Silk 3 11 tensions start passively to consume energy.When push-pull bar 15 is subject to bigger pulling force, right baffle-plate 3 continues Slide to the left, when lattice baffle ring 2 17 moves to slide block 2 right-hand member, together with slide block 2 starts with right baffle-plate 3 To left movement, SMA silk 2 10 tension, now SMA silk 2 10, SMA silk 3 11 and piezoelectricity pottery Porcelain driver 21 consumes energy simultaneously, and can change exerting oneself of piezoelectric ceramic actuator 21 by applying voltage.
When push-pull bar 15 is by pressure the most to the right, now, right baffle-plate 3 is by left chute The right-hand member of 19 blocks transfixion, and the baffle ring 2 17 on push-pull bar 15 withstands right baffle plate 4 and moves to the right, SMA silk 3 11 tension starts passively to consume energy.When lattice baffle ring 1 moves to slide block 2 left end, slide block 2 start with right baffle plate 4 together with move right, SMA silk 1 tension, now SMA silk 1, SMA Silk 3 11 and piezoelectric ceramic actuator 21 consume energy simultaneously, and can drive by applying voltage change electroceramics Exerting oneself of dynamic device 21.
When power is off, piezoelectric ceramic actuator 21 cisco unity malfunction, and the SMA silk one in antivibrator 9, SMA silk 2 10, SMA silk 3 11 can continue passively to consume energy and reach the purpose of vibration damping.

Claims (9)

1. a bar shaft type piezoelectric-SMA composite friction damper, including antivibrator casing (1), resistance Buddhist nun's device casing has a slide block (2), it is characterised in that have four circular hole (5) on slide block (2), often Individual circular hole (5) arranges the piezoelectric ceramic actuator (21) of about one band pad (6), slide block (2) Left side right baffle-plate (3) is set, right side arranges right baffle plate (4), the left side wall of antivibrator casing (1) And horizontal concrete chute one (19) is set between right baffle-plate (3), for right baffle-plate (3) in groove along left and right Sliding in direction, arranges horizontal concrete chute two (20) between right side wall and the right baffle plate (4) of antivibrator casing (1), Slide in left-right direction in groove for right baffle plate (4), the left side wall of antivibrator casing (1) and slide block (2) many SMA silks one (9), the right side wall of antivibrator casing (1) and slide block (2) are set between Between many SMA silks two (10) are set, be provided with many between right baffle-plate (3) and right baffle plate (4) SMA silk three (11), push-pull bar (15) sequentially passes through the left side wall of antivibrator casing (1), left gear Plate (3) and slide block (2) contact with right baffle plate (4) but do not fix, the right side of antivibrator casing (1) Wall arranges connecting rod (18).
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that The left side wall of described antivibrator casing (1) has two hexagonal flange band tooth bolts one (13) with pad With fixing SMA silk one (9), right side wall has two hexagonal flange band tooth bolts two (14) with pad With fixing SMA silk two (10).
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Each corner of described slide block (2) is respectively arranged with an arcuate socket, and the most through, so that SMA silk one (9) Or SMA silk two (10) passes.
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Before and after described antivibrator casing (1), sidewall is respectively arranged with two circular holes one (7), the side of described circular hole (5) Wall is respectively arranged with a circular hole two (8), and two of which circular hole two (8) divides with two circular holes one (7) of front side wall Not connecting, two circular holes of another two circular hole two (8) and rear wall one (7) are respectively communicated with, piezoelectric ceramics The electric wire of driver (21) sequentially passes through circular hole two (8), circular hole one (7) is connected with external power source.
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Having two hexagonal flange band tooth bolts three (12) on described right baffle-plate (3), right baffle plate has two on (4) Small sircle hole is so that SMA silk three (11) passes.
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Described SMA silk one (9) sequentially passes through right baffle-plate (3) and slide block (2) returns and is fixed on antivibrator case On the left side wall of body (1), SMA silk two (10) sequentially passes through right baffle plate (4) and slide block (2) returns Returning and be fixed on the right side wall of antivibrator casing (1), SMA silk three (11) sequentially passes through slide block (2) Return with right baffle-plate (3) and be fixed on right baffle plate (4).
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Described push-pull bar (15) is upper and there is baffle ring one (16) right baffle-plate (3) contact site, with right baffle plate (4) Contact site has baffle ring two (17), baffle ring one (16) to be positioned at the right side of right baffle-plate (3), baffle ring two (17) It is positioned at the left side of right baffle plate (4).
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Described connecting rod (18) is bolted on outside the right side wall of antivibrator casing (1).
Bar shaft type piezoelectric-SMA composite friction damper the most according to claim 1, it is characterised in that Described antivibrator casing (1) is configured with antivibrator lid (22), and antivibrator lid has interior six on (22) Corner bolt (23), changes precompression by regulation hexagon socket head cap screw (23), and then changes slide block (2) Initial frictional with antivibrator lid (22).
CN201610368150.7A 2016-05-27 2016-05-27 Rod-shaft type piezoelectric-SMA incorporated friction damper Pending CN105804266A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107191046A (en) * 2017-06-23 2017-09-22 西京学院 A kind of friction-type quality runner damper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080065110A (en) * 2007-01-08 2008-07-11 안숙희 Frictional shape memory alloy damper
CN101851963A (en) * 2010-06-23 2010-10-06 湖南大学 Piezoelectric-SMA composite variable friction intelligent damper
CN104763069A (en) * 2015-03-27 2015-07-08 燕山大学 SMA-piezoelectric frictional combined damper
CN105201099A (en) * 2015-10-26 2015-12-30 西安建筑科技大学 SMA piezoelectric friction intelligent mixed damper
CN105350679A (en) * 2015-12-15 2016-02-24 西安建筑科技大学 Reset type SMA piezoelectricity-friction mixed damper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080065110A (en) * 2007-01-08 2008-07-11 안숙희 Frictional shape memory alloy damper
CN101851963A (en) * 2010-06-23 2010-10-06 湖南大学 Piezoelectric-SMA composite variable friction intelligent damper
CN104763069A (en) * 2015-03-27 2015-07-08 燕山大学 SMA-piezoelectric frictional combined damper
CN105201099A (en) * 2015-10-26 2015-12-30 西安建筑科技大学 SMA piezoelectric friction intelligent mixed damper
CN105350679A (en) * 2015-12-15 2016-02-24 西安建筑科技大学 Reset type SMA piezoelectricity-friction mixed damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107191046A (en) * 2017-06-23 2017-09-22 西京学院 A kind of friction-type quality runner damper
CN107191046B (en) * 2017-06-23 2019-04-02 西京学院 A kind of friction-type quality runner damper

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