CN201635210U - Viscoelastic compound-shaped memory alloy damper - Google Patents

Viscoelastic compound-shaped memory alloy damper Download PDF

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Publication number
CN201635210U
CN201635210U CN 201020110154 CN201020110154U CN201635210U CN 201635210 U CN201635210 U CN 201635210U CN 201020110154 CN201020110154 CN 201020110154 CN 201020110154 U CN201020110154 U CN 201020110154U CN 201635210 U CN201635210 U CN 201635210U
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China
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plate
damper
viscoelastic
rectangle
urceolus
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Expired - Fee Related
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CN 201020110154
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Chinese (zh)
Inventor
孙香红
樊燕军
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Changan University
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Changan University
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Publication of CN201635210U publication Critical patent/CN201635210U/en
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Abstract

The utility model discloses a viscoelastic compound-shaped memory alloy damper, comprising a traditional plate type two-layer viscoelastic damper composed of a rectangular outer cylinder, two constrained plate pieces, a middle plate piece and a viscoelastic damping plate. The middle part of the traditional plate type two-layer viscoelastic damper is preinstalled with hole sites, and the preinstalled hole sites are respectively positioned on the rectangular outer cylinder, the constrained plate pieces, the middle plate piece and the viscoelastic damping plate, wherein the diameters of the hole sites on the constrained plate pieces are larger than the diameters of the hole sites on the middle plate piece and the rectangular outer cylinder. A vertical guide rod is arranged in the preinstalled hole sites. Parallel two groups of SMA alloy wires are respectively arranged between the two constrained plate pieces and the rectangular outer cylinder, and each group of alloy wires is connected between the side wall of the rectangular outer cylinder and the vertical guide rod. The damper has the characteristics of multistage energy consumption, adaptivity, strong energy-dissipating capacity and stable working performance, the parameters of the damper can be convenient regulated, the mode is simple, and the damper can be promoted and used in the new construction and reconstruction of buildings with bottom-part frames and upper-part brick houses, and the like.

Description

Viscoelastic Composite type marmem damper
Technical field
The utility model relates to a kind of passive energy-dissipating device, especially a kind of Viscoelastic Composite type marmem (SMA) damper with adaptive ability.
Background technology
At present, existing passive energy-dissipating device mainly comprises: several classes such as viscous type, viscoelastic sexual type, metal yield type, friction-type.Traditional board-like two-layer viscoelastic damper, generally comprise a shell, be provided with two blocks of constraint plates and a middle plate in the shell, between constraint plate and the middle plate two-layer viscoelastic damping plate is arranged, there is connecting hole extending part at constraint plate and middle plate, under the effect of axial force repeatedly, and constraint plate and middle plate generation relative motion, make the viscoelastic damping plate produce reciprocal shear strain, thereby with the heat absorption mode kinergety that dissipates.
Dissimilar dampers has different Energy Dissipation Mechanism: viscous type and viscoelastic sexual type energy-dissipating device mainly utilize the characteristic power consumption of material and velocity correlation, then mainly utilize material at the seismic energy that dissipates of the hysteretic energy under the large deformation for metal yield type, friction-type energy-dissipating device.A large amount of research all shows the anti-seismic performance of reasonably selecting for use damper can improve structure effectively, yet present existing damping unit ubiquity some shortcomings: affected by environment bigger as the material of viscoelastic damper; The maintenance of viscous damper is constant and use comprehensive cost higher; Frcition damper its reliability in the prolonged application process can descend; Metal damper can produce excessive plastic strain and problem such as can't recover.
Marmem is as a kind of intellectual material, because of it has superelastic properties and shape memory effect, for civil engineering vibration isolation field provides new research direction, it is strong that yet superelastic properties how to utilize marmem is developed out a kind of energy dissipation capacity, have simultaneously from reset function, form of structure is simple, and the passive energy-consumption damper of being convenient to the engineering application is still a challenging problem that faces at present.
Summary of the invention
In order to utilize shape memory alloy material and to overcome the unfavorable problem of existing energy-dissipating device energy dissipation capacity, the purpose of this utility model is, a kind of Viscoelastic Composite type marmem damper is provided, this damper adopts two kinds of dissipative cell co-operation, have stronger energy dissipation capacity, can be applied to easily in the brick house structural vibrations control of under(-)chassis top.
In order to realize above-mentioned task, the utility model solves the technical scheme that its technical problem adopts and is:
A kind of Viscoelastic Composite type marmem damper, comprise rectangle urceolus, two traditional board-like two-layer viscoelastic dampers that constraint plate, middle plate and viscoelastic damping plate constitute, it is characterized in that, in traditional default position, hole, board-like two-layer viscoelastic damper middle part, should lay respectively on rectangle urceolus, constraint plate, middle plate and the viscoelastic damping plate default position, hole, wherein, the diameter of the position, default hole on the constraint plate is greater than the diameter of the position, default hole on middle plate and the rectangle urceolus; Establish a vertical guide rod in default position, hole, be respectively equipped with two groups of parallel SMA (Shape Memory Alloy) alloy silk between two blocks of constraint plates up and down and rectangle urceolus, every group of SMA alloy silk is connected in the rectangle outer tube side wall and vertically between the guide rod.
Other characteristics of the present utility model are:
The end is provided with L type connector around the described rectangle urceolus inboard;
One in described every group of SMA alloy silk is born pulling force, and another root bears pressure.
Described every group of SMA alloy silk is connected in the L type connector of end around the rectangle urceolus with vertically between the guide rod.
Described every group of SMA alloy silk is symmetric arrangement.
Viscoelastic Composite type marmem damper of the present utility model has adopted the thinking of grading control.Only by the viscoplasticity dissipation energy, and next by viscoelastic damping power consumption and the SMA alloy silk hysteretic energy seismic energy that dissipates jointly under little shake and middle shake effect in big shake effect.Damper has the characteristics of multistage power consumption, and adaptivity is strong, and its main performance comprises that equivalent damping, rigidity etc. can change with the different distortion situation in the structural vibration process; And energy dissipation capacity is strong, stable work in work, and form of structure is simple, and its parameter can be regulated easily, the convenient manufacturing and installation, two kinds of energy consume mechanism actings in conjunction have stronger energy dissipation capacity.Can in the newly-built of buildings such as under(-)chassis top brick house and reconstruction, be applicable.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is that Fig. 1 is a vertical view.
Fig. 3 is the I-I sectional view of Fig. 1.
Label among the figure is represented respectively: 1, rectangle urceolus, 2, marmem (SMA) alloy silk, 3, vertical guide rod, 4, default position, hole, 5, the viscoelastic damping plate, 6, L shaped connector, 7, the M12 bolt, 8, the constraint steel plate, 9, middle steel plate.
Below in conjunction with accompanying drawing the utility model is described in further detail.
The specific embodiment
Referring to Fig. 1~3, Viscoelastic Composite type marmem damper of the present utility model, comprise rectangle urceolus 1, two blocks of constraint plates 8, the traditional board-like two-layer viscoelastic damper that middle plate 9 and viscoelastic damping plate 5 constitute, in traditional default position, hole 4, board-like two-layer viscoelastic damper middle part, should lay respectively at rectangle urceolus 1 in default position, hole 4, constraint plate 8, on middle plate 9 and the viscoelastic damping plate 5, establish a vertical guide rod 3 in the default position, hole 4, wherein, the diameter of the position, default hole 4 on the constraint plate 8 is greater than the position, default hole 4 on middle plate 9 and the rectangle urceolus 1; Be respectively equipped with two groups of parallel SMA alloy silks 2 between two blocks of constraint plates 8 up and down and rectangle urceolus 1, every group of SMA alloy silk 2 is connected in rectangle urceolus 1 sidewall and vertically between the guide rod 3.
Be provided with L type connector 6 around inboard, L shaped connector 6 is connected firmly by the end all around of M12 bolt 7 with rectangle urceolus 1.The position, default hole 4 that two-layer constraint plate 8 is offered is identical with position, default hole 4 diameters on the two-layer viscoelastic damping plate 5 up and down, and it is measure-alike all by elastoplasticity interlayer maximum displacement value of current specifications regulation; Position, default hole 4 on the middle plate 9 is identical with the position on rectangle urceolus 1, constraint plate 8, the viscoelastic damping plate 5, but its size difference, concrete numerical value can be by maximum displacement value between the elastic layer of current specifications regulation.Default 4 places, position, hole establish vertical guide rod 3, and SMA alloy silk 2 two ends are connected with the L shaped connector 6 of guide rod 3 and rectangle urceolus 1 end respectively, and every group of SMA alloy silk is symmetric arrangement.
As shown in Figure 2, position, default hole 4 vertical, horizontal of viscoelastic damping plate are all put middle layout.Constraint plate 8 is provided with connecting hole with middle plate 9 sponsons and can be connected with external bracing.
Sectional drawing as shown in Figure 3, viscoelastic damping plate 5 adopts double-deck viscoelastic material; L shaped connector 6 connects around the inboard of rectangle urceolus 1.
In the above-mentioned example, the material selection Q235 steel of rectangle urceolus 1, middle plate 9 and constraint plate 8, the thickness of inner viscoelastic damping plate 5 is 13mm, the thickness of middle plate 9 and constraint plate 8 is 8mm.
The utility model adopts viscoelastic damping plate and two kinds of dissipative cells of SMA alloy silk, utilizes the characteristics of the super-elasticity hysteretic energy of SMA alloy silk, can apply different prestrain to marmem by the screw of regulating the L shaped connector of anchor portion place.Damper in the course of the work, upper and lower constraint plate bottom is fixed, and can think that it does not participate in motion, the motion of plate in the middle of only considering; Only the viscoelastic damping plate produces damping energy dissipation under little shake and middle shake effect, under big shake effect, middle plate 9 moving displacements strengthen and touch vertical guide rod 3, SMA alloy silk then moves with guide rod, thereby has one to bear pulling force and another root alloy silk bears pressure and forms tension and compression type SMA alloy silk composite buffer in every combination spun gold.
Position, default hole 4 diameters of rectangle urceolus 1 and middle plate 9 are less than the diameter dimension of constraint plate 8, viscoelastic damping plate 5, under little shake and middle shake effect, the moving displacement of middle plate 9 is less than the size of the position, default hole 4 of constraint plate 8 and viscoelastic damping plate 5, can't touch vertical guide rod 3, at this moment only be the viscoplasticity power consumption; And under big shake effect, when the moving displacement of middle plate 3 surpasses a certain numerical value, thereby then touching default 4 edges, position, hole drives guide rod 3 motions, and guide rod 3 motions will drive SMA alloy silk and move back and forth the realization hysteretic energy.

Claims (5)

1. Viscoelastic Composite type marmem damper, comprise rectangle urceolus (1), two blocks of constraint plates (8), the traditional board-like two-layer viscoelastic damper that middle plate (9) and viscoelastic damping plate (5) constitute, it is characterized in that, in traditional default position, hole (4), board-like two-layer viscoelastic damper middle part, should lay respectively at rectangle urceolus (1) in default position, hole (4), constraint plate (8), on middle plate (9) and the viscoelastic damping plate (5), wherein, the diameter of the position, default hole (4) on the constraint plate (8) is greater than the diameter of the position, default hole (4) on middle plate (9) and the rectangle urceolus (1); Establish a vertical guide rod (3) in the default position, hole (4), be respectively equipped with parallel two groups of SMA alloy silks (2) between two blocks of constraint plates (8) up and down and rectangle urceolus (1), every group of SMA alloy silk (2) is connected in rectangle urceolus (1) sidewall and vertically between the guide rod (3).
2. Viscoelastic Composite type marmem damper as claimed in claim 1 is characterized in that, the inboard end all around of described rectangle urceolus (1) is provided with L type connector (6).
3. Viscoelastic Composite type marmem damper as claimed in claim 1 is characterized in that, one in described every group of SMA alloy silk (2) is born pulling force, and another root bears pressure.
4. Viscoelastic Composite type marmem damper as claimed in claim 2 is characterized in that, described every group of SMA alloy silk (2) is connected in rectangle urceolus (1) all around between the L type connector (6) and vertical guide rod (3) of end.
5. Viscoelastic Composite type marmem damper as claimed in claim 1 is characterized in that, described every group of SMA alloy silk (2) symmetric arrangement.
CN 201020110154 2010-02-05 2010-02-05 Viscoelastic compound-shaped memory alloy damper Expired - Fee Related CN201635210U (en)

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Application Number Priority Date Filing Date Title
CN 201020110154 CN201635210U (en) 2010-02-05 2010-02-05 Viscoelastic compound-shaped memory alloy damper

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Application Number Priority Date Filing Date Title
CN 201020110154 CN201635210U (en) 2010-02-05 2010-02-05 Viscoelastic compound-shaped memory alloy damper

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425246A (en) * 2011-10-19 2012-04-25 沈阳建筑大学 Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space
CN102720283A (en) * 2012-06-21 2012-10-10 河北工业大学 Superelastic shape memory alloy and friction cascade combined damper
CN104947825A (en) * 2015-06-12 2015-09-30 云南震安减震科技股份有限公司 Viscoelastic damper and preparing method thereof
CN105178471A (en) * 2015-09-25 2015-12-23 郑州大学 Self-reset viscous-elastic damping wall
CN105625599A (en) * 2016-03-25 2016-06-01 大连理工大学 Reset shape memory alloy-extrusion type lead composite energy consumption damper
CN109372141A (en) * 2018-11-22 2019-02-22 东南大学 Variable damping viscoplasticity band type damper
CN112538906A (en) * 2020-10-28 2021-03-23 四川极速衍生科技发展有限公司 Pure bending moment yielding damper device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425246A (en) * 2011-10-19 2012-04-25 沈阳建筑大学 Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space
CN102425246B (en) * 2011-10-19 2014-04-23 沈阳建筑大学 Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space
CN102720283A (en) * 2012-06-21 2012-10-10 河北工业大学 Superelastic shape memory alloy and friction cascade combined damper
CN104947825A (en) * 2015-06-12 2015-09-30 云南震安减震科技股份有限公司 Viscoelastic damper and preparing method thereof
CN105178471A (en) * 2015-09-25 2015-12-23 郑州大学 Self-reset viscous-elastic damping wall
CN105625599A (en) * 2016-03-25 2016-06-01 大连理工大学 Reset shape memory alloy-extrusion type lead composite energy consumption damper
CN109372141A (en) * 2018-11-22 2019-02-22 东南大学 Variable damping viscoplasticity band type damper
CN112538906A (en) * 2020-10-28 2021-03-23 四川极速衍生科技发展有限公司 Pure bending moment yielding damper device
CN112538906B (en) * 2020-10-28 2021-11-02 四川极速衍生科技发展有限公司 Pure bending moment yielding damper device

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20101117

Termination date: 20130205