CN115162815A - Shape memory alloy damper - Google Patents
Shape memory alloy damper Download PDFInfo
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- CN115162815A CN115162815A CN202210834862.9A CN202210834862A CN115162815A CN 115162815 A CN115162815 A CN 115162815A CN 202210834862 A CN202210834862 A CN 202210834862A CN 115162815 A CN115162815 A CN 115162815A
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 135
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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 shape memory alloy damper, which comprises an upper cylinder and a lower cylinder, wherein the top of the upper cylinder and the bottom of the lower cylinder are fixedly provided with an upper end plate and a lower end plate, and the middle parts of the upper end plate and the lower end plate are respectively provided with an upper screw and a lower screw in a penetrating way; an upper sliding plate and a lower sliding plate are respectively arranged in the upper barrel body and the lower barrel body in a sliding manner, one end of an upper screw rod extending into the upper barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner through an inverted U-shaped connecting rod, one end of a lower screw rod extending into the lower barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner, and blocking blocks positioned above the upper sliding plate and below the lower sliding plate are fixedly arranged on the connecting rod and the lower screw rod; two upper shape memory alloy components and two lower shape memory alloy components are respectively arranged between the upper end plate and the upper sliding plate and between the lower end plate and the lower sliding plate. The spring damper can realize that the upper and lower shape memory alloy components can be in a stretching state when the upper and lower screw rods are simultaneously pulled or pressed, thereby playing the roles of vibration reduction and energy consumption.
Description
Technical Field
The invention relates to the technical field of dampers, in particular to a shape memory alloy damper.
Background
Earthquake is a very destructive natural disaster, and seriously threatens production, life and development of human beings. The earthquake-resistant design becomes an important link for improving the earthquake-resistant performance of buildings, and most of the traditional earthquake-resistant design methods mainly increase the ductility of materials and the integral rigidity of the structure, so that structural members are easily damaged, and the difficulty is brought to the repair of the structure after the earthquake. In view of the damage mechanism of the mechanism when the actual earthquake occurs, the structure control technology dissipates part of energy transferred to the upper structure under the action of earthquake motion through a damper or other energy dissipation components in a dredging mode so as to reduce the dynamic response of the structure, and the structure control technology is an effective means for improving the building structure to reach the expected fortification requirement under the action of earthquake, wind load and the like.
In the passive control of the structure, the damper can reduce the response of earthquake motion to the structure, dissipate partial energy, play a role in controlling the displacement between the structural layers, has a certain self-resetting function and reduces the residual deformation of the structure under the action of the earthquake. In recent years, shape memory alloy as a novel intelligent material has the advantages of high damping, high corrosion resistance and the like besides the shape memory effect and the superelasticity effect, has great progress and development in the field of structural vibration control, and has been proved to have not only good energy dissipation and shock absorption functions but also a self-resetting function in building structures in various researches. However, in engineering practice, the shape memory alloy damper has many problems to be solved, for example, in a structure with a large span, the strain generated by the shape memory alloy inhaul cable between the columns is small, so that the energy consumption effect of the shape memory alloy is not ideal; and the shape memory alloy needs external excitation to achieve a certain stress condition when generating energy consumption, so that the shape memory alloy is insensitive to medium and small earthquakes and has limited effects of damping and energy consumption.
Disclosure of Invention
In order to solve the technical problems, the invention provides the shape memory alloy damper which can realize that the upper shape memory alloy part and the lower shape memory alloy part can be in a stretching state when the upper screw rod and the lower screw rod are simultaneously under tension or pressure, so that the effects of vibration reduction and energy consumption are achieved.
The technical solution adopted by the invention is as follows:
the invention provides a shape memory alloy damper, which comprises an upper cylinder and a lower cylinder, wherein the bottom of the upper cylinder is fixedly connected with the top of the lower cylinder;
an upper end plate and a lower end plate are fixedly arranged at the top of the upper cylinder and the bottom of the lower cylinder respectively, and an upper screw and a lower screw are arranged in the middle of the upper end plate and the lower end plate respectively in a penetrating manner;
an upper sliding plate and a lower sliding plate are respectively arranged in the upper barrel body and the lower barrel body in a sliding manner, one end of the upper screw rod extending into the upper barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner through an inverted U-shaped connecting rod, one end of the lower screw rod extending into the lower barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner, and blocking blocks positioned above the upper sliding plate and below the lower sliding plate are fixedly arranged on the connecting rod and the lower screw rod;
and two upper shape memory alloy parts and two lower shape memory alloy parts are respectively arranged between the upper end plate and the upper sliding plate and between the lower end plate and the lower sliding plate.
Furthermore, the upper sliding plate and the lower sliding plate are respectively connected with the inner walls of the upper barrel body and the lower barrel body in a sliding manner; the outer ends of the upper sliding plate and the lower sliding plate are respectively provided with a sliding block, and the inner walls of the upper barrel body and the lower barrel body are respectively provided with a sliding groove matched with the sliding block.
In the technical scheme, the shape memory alloy component can stretch along with the movement of the upper sliding plate and the lower sliding plate by arranging the upper sliding plate and the lower sliding plate which are in sliding connection with the inner wall of the cylinder body.
Further, the inverted U-shaped connecting rods are positioned on two sides of the lower screw rod.
Furthermore, the two upper shape memory alloy springs and the two lower shape memory alloy springs are respectively positioned on two sides of the upper screw rod and the lower screw rod and are symmetrically arranged relative to the upper screw rod and the lower screw rod respectively.
Further, the upper shape memory alloy member and the lower shape memory alloy member are shape memory alloy wires or shape memory alloy springs.
When the upper shape memory alloy component and the lower shape memory alloy component are shape memory alloy wires, two ends of the upper shape memory alloy component respectively penetrate through the upper end plate and the upper sliding plate, two ends of the lower shape memory alloy component respectively penetrate through the lower end plate and the lower sliding plate, and two ends of the upper shape memory alloy component and two ends of the lower shape memory alloy component are respectively fixed through an anchorage device;
when going up shape memory alloy part and shape memory alloy part down and be the shape memory alloy spring, go up the both ends of shape memory alloy part and be connected with upper header plate, upper slide plate through the spring holder respectively, the both ends of shape memory alloy part are connected with lower header plate, lower slide plate through the spring holder respectively down.
Furthermore, when the upper screw and the lower screw are simultaneously pulled, the upper shape memory alloy part and the lower shape memory alloy part are in a stretching state; when the upper screw and the lower screw are simultaneously pressed, the upper shape memory alloy part and the lower shape memory alloy part are in a stretching state. The method comprises the following specific steps: when the upper screw and the lower screw of the damper are simultaneously pulled, the upper screw drives the lower sliding plate to move upwards through the inverted U-shaped connecting rod, and the lower screw drives the upper sliding plate to move downwards, so that the upper shape memory alloy part and the lower shape memory alloy part are driven to be pulled simultaneously, and the effects of vibration attenuation and energy consumption are achieved; when the upper screw and the lower screw of the damper are simultaneously pressed, the upper screw drives the upper sliding plate to move downwards through the inverted U-shaped connecting rod, and the lower screw drives the lower sliding plate to move upwards, so that the upper shape memory alloy part and the lower shape memory alloy part are driven to be simultaneously pulled, and the effects of vibration attenuation and energy consumption are achieved.
The invention has the beneficial effects that:
(1) The two ends of the shape memory alloy damper are provided with two groups of shape memory alloy components, and when the upper screw and the lower screw are simultaneously tensioned or stressed, the two groups of shape memory alloy components can be in a stretching state, so that the shape memory alloy components at the two ends of the damper can play a role in vibration reduction and energy consumption; the shape memory alloy components are arranged at the two ends of the damper, so that the structure connected with the upper screw and the lower screw can be subjected to vibration damping and buffering respectively, and displacement formed by the structure connected with the upper screw and the lower screw is dispersed, so that the situation that a single shape memory alloy component reaches the strain limit is avoided, and the damper is suitable for the situation of large driving displacement, such as the situation that a building structure generates large displacement due to strong earthquake, super strong wind and the like;
(2) The shape memory alloy damper provided by the invention can adjust the prestress of the shape memory alloy part to enable the shape memory alloy part to have certain initial deformation, and when the structure connected with the upper screw rod and the lower screw rod generates micro displacement, the shape memory alloy part can generate a hysteresis loop to achieve the effect of energy dissipation, so that the shape memory alloy damper is suitable for the condition of small displacement, such as the condition of small displacement of a building structure caused by small and medium-sized earthquakes.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention in the prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic view of the overall structure of embodiment 2 of the present invention.
The drawing is marked with: 1. an upper cylinder body; 2. a lower cylinder body; 3. an upper end plate; 4. a lower end plate; 5. an upper screw rod; 6. a lower screw rod; 7. an upper slide plate; 8. a lower slide plate; 9. a connecting rod; 10. a blocking block; 11. an upper shape memory alloy spring; 12. a lower shape memory alloy spring; 13. a spring seat; 14. pre-tightening the bolts; 15. pre-tightening the nut; 16. putting a shape memory alloy wire; 17. a lower shape memory alloy wire; 18. an anchorage device.
Detailed Description
The invention provides a shape memory alloy damper, which is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The invention is described in detail below with reference to the accompanying drawings:
example 1
Referring to fig. 1 and 2, the present embodiment provides a shape memory alloy damper, which includes an upper cylinder 1 and a lower cylinder 2, wherein the bottom of the upper cylinder 1 is fixedly connected to the top of the lower cylinder 2.
Wherein, the top of the upper cylinder 1 and the bottom of the lower cylinder 2 are respectively fixedly provided with an upper end plate 3 and a lower end plate 4, and the middle parts of the upper end plate 3 and the lower end plate 4 are respectively provided with an upper screw 5 and a lower screw 6 in a penetrating way; specifically, through holes are formed in the middle parts of the upper end plate 3 and the lower end plate 4, and the upper screw 5 and the lower screw 6 penetrate through the through holes in the middle parts of the upper end plate 3 and the lower end plate 4, that is, the upper screw 5 and the lower screw 6 penetrate through the upper barrel 1 and the lower barrel 2 respectively; and the end parts of the upper screw rod 5 and the lower screw rod 6, which extend out of the upper cylinder body 1 and the lower cylinder body 2, are provided with thread sections for connecting with the actual construction engineering structure and the like, and the other parts are not provided with threads, so that the upper screw rod and the lower screw rod can move along the through hole directions of the upper end plate and the lower end plate when being pulled or pressed, thereby driving the upper sliding plate 7 and the lower sliding plate 8 to move, and further driving the upper shape memory alloy spring 11 and the lower shape memory alloy spring 12 to stretch and retract.
An upper sliding plate 7 and a lower sliding plate 8 are respectively arranged in the upper barrel 1 and the lower barrel 2 in a sliding way; specifically, the upper sliding plate 7 and the lower sliding plate 8 are respectively connected with the inner walls of the upper barrel 1 and the lower barrel 2 in a sliding manner, the upper sliding plate 7 and the lower sliding plate 8 can adopt disc-shaped structures, the diameters of the upper sliding plate 7 and the lower sliding plate 8 are respectively smaller than the inner diameters of the upper barrel 1 and the lower barrel 2, the outer end portions of the upper sliding plate 7 and the lower sliding plate 8 are respectively provided with a plurality of sliding blocks, the inner walls of the upper barrel 1 and the lower barrel 2 are respectively provided with vertical sliding grooves matched with the sliding blocks, the sliding connection of the upper sliding plate 7 and the lower sliding plate 8 with the upper barrel 1 and the lower barrel 2 is realized through the sliding blocks and the vertical sliding grooves, so that the following upper shape memory alloy spring and the lower shape memory alloy spring can stretch along with the movement of the upper sliding plate 7 and the lower sliding plate 8, and the sliding process of the upper sliding plate and the lower sliding plate can be kept horizontal without deflection through the matching of the sliding blocks and the vertical sliding grooves.
Two upper shape memory alloy springs 11 and two lower shape memory alloy springs 12 are respectively arranged between the upper end plate 3 and the upper sliding plate 7 and between the lower end plate 4 and the lower sliding plate 8, and the two upper shape memory alloy springs 11 and the two lower shape memory alloy springs 12 are respectively positioned at two sides of the upper screw 5 and the lower screw 6 and are respectively symmetrically arranged relative to the upper screw 5 and the lower screw 6; specifically, spring seats 13 are respectively arranged at two end portions of the upper shape memory alloy spring 11 and the lower shape memory alloy spring 12, wherein the spring seats 13 at one end of the upper shape memory alloy spring 11 and one end of the lower shape memory alloy spring 12 are respectively and fixedly connected with the corresponding upper sliding plate 7 and the corresponding lower sliding plate 8, the spring seats 13 at the other end are connected with the corresponding upper end plate 3 and the corresponding lower end plate 4 through pretightening bolts 14 and pretightening nuts 15, wherein one end of each pretightening bolt 14 is fixedly connected with the spring seat 13, and the other end penetrates through the upper end plate and the lower end plate and is in threaded connection with the pretightening nuts 15. The stretching amount of the shape memory alloy spring can be adjusted by adjusting the pre-tightening bolt and the pre-tightening nut, so that the shape memory alloy spring has certain initial elongation, namely, the shape memory alloy has certain initial prestress, and in the using process, when a building structure connected with the upper screw rod and the lower screw rod and the like displace in a small distance, the damper can play a role in damping and energy dissipation.
In addition, in this embodiment, one end of the upper screw 5 extending into the upper cylinder 1 is slidably connected to the upper sliding plate 7 and the lower sliding plate 8 through an inverted U-shaped connecting rod 9, one end of the lower screw 6 extending into the lower cylinder 2 is slidably connected to the upper sliding plate 7 and the lower sliding plate 8, and the upper sliding plate 7 and the lower sliding plate 8 are respectively provided with a sliding hole matched with the connecting rod 9 and the lower screw 6, the connecting rod 9 and the lower screw 6 can slide in the sliding hole, and the connecting rod 9 and the lower screw 6 are both fixedly provided with a blocking block 10 located above the upper sliding plate 7 and below the lower sliding plate 8; specifically, the inverted U-shaped connecting rod 9 is located on two sides of the lower screw 6, that is, the connecting rod 9 actually includes two connecting struts, and the two connecting struts are located on two sides of the lower screw and symmetrically arranged with respect to the lower screw, that is, the two connecting struts of the connecting rod 9 are both fixedly provided with the blocking blocks 10 located above the upper sliding plate 7 and below the lower sliding plate 8. By means of the structure, the upper shape memory alloy spring and the lower shape memory alloy spring can be in a stretching state when the upper screw rod and the lower screw rod are in a stretched state and a pressed state at the same time, and therefore the upper shape memory alloy spring and the lower shape memory alloy spring can play a role in damping and dissipating energy.
In the shape memory alloy damper provided by the embodiment, in the use process, when the upper screw 5 and the lower screw 6 are simultaneously pulled, the upper screw 5 drives the lower sliding plate 8 to move upwards through the inverted U-shaped connecting rod 9, so that the lower shape memory alloy spring 12 is driven to move upwards to be in a pulled state, the lower screw 6 drives the upper sliding plate 7 to move downwards, so that the upper shape memory alloy spring 11 is driven to move downwards to be in a pulled state, namely, the upper shape memory alloy spring and the lower shape memory alloy spring are simultaneously pulled, so that the vibration and energy consumption effects are achieved; when the upper screw rod 5 and the lower screw rod 6 of the spring damper are simultaneously pressed, the upper screw rod 5 drives the upper sliding plate 7 to move downwards through the inverted U-shaped connecting rod 9, so that the upper shape memory alloy spring 11 is moved downwards to be in a tension state, the lower screw rod 6 drives the lower sliding plate 8 to move upwards, so that the lower shape memory alloy spring 12 is driven to move upwards to be in a tension state, namely, the upper shape memory alloy spring and the lower shape memory alloy spring are simultaneously pulled, and the effects of vibration reduction and energy consumption are achieved.
Example 2
Referring to fig. 3, the present embodiment 2 differs from embodiment 1 in that: in this embodiment, an upper shape memory alloy spring and a lower shape memory alloy spring are not disposed between the upper end plate 3 and the upper sliding plate 7, and between the lower end plate 4 and the lower sliding plate 8, but two upper shape memory alloy wires 16 and two lower shape memory alloy wires 17 are disposed respectively, two ends of the upper shape memory alloy wire 16 respectively penetrate through the upper end plate 3 and the upper sliding plate 7 and are fixed to the upper end plate 3 and the upper sliding plate 7 through an anchorage 18, two ends of the lower shape memory alloy wire 17 respectively penetrate through the lower end plate 4 and the lower sliding plate 8 and pass through the anchorage 18 and the lower end plate 4 and the lower sliding plate 8, and the elongation of the upper shape memory alloy wire and the lower shape memory alloy wire can be adjusted to have a certain initial prestress, that is, when a structure connected by the upper screw and the lower screw is subjected to a small displacement, a hysteresis loop can be generated by the shape memory alloy component, so that an energy dissipation effect is achieved, and the shape memory alloy wire is suitable for a small displacement.
In the use process of the shape memory alloy damper provided by the embodiment, when the upper screw 5 and the lower screw 6 are simultaneously pulled, the upper screw 5 drives the lower sliding plate 8 to move upwards through the inverted U-shaped connecting rod 9, so that the lower shape memory alloy wire 17 is driven to move upwards to be in a pulled state, the lower screw 6 drives the upper sliding plate 7 to move downwards, so that the upper shape memory alloy wire 16 is driven to move downwards to be in a pulled state, namely, the upper shape memory alloy wire and the lower shape memory alloy wire are simultaneously pulled, and the vibration and energy consumption effects are achieved; when the upper screw rod 5 and the lower screw rod 6 of the spring damper are simultaneously pressed, the upper screw rod 5 drives the upper sliding plate 7 to move downwards through the inverted U-shaped connecting rod 9, so that the upper shape memory alloy wire 16 is moved downwards to be in a tensioned state, the lower screw rod 6 drives the lower sliding plate 8 to move upwards, so that the lower shape memory alloy wire 17 is driven to move upwards to be in a tensioned state, namely the upper shape memory alloy wire and the lower shape memory alloy wire are simultaneously tensioned, and the effects of vibration reduction and energy consumption are achieved.
It should be noted that the parts not described in the present invention can be implemented by using or referring to the existing technology.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The shape memory alloy damper is characterized by comprising an upper cylinder body and a lower cylinder body, wherein the bottom of the upper cylinder body is fixedly connected with the top of the lower cylinder body;
an upper end plate and a lower end plate are fixedly arranged at the top of the upper cylinder body and the bottom of the lower cylinder body respectively, and an upper screw and a lower screw are arranged in the middle of the upper end plate and the lower end plate respectively in a penetrating manner;
an upper sliding plate and a lower sliding plate are respectively arranged in the upper barrel body and the lower barrel body in a sliding manner, one end of the upper screw rod extending into the upper barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner through an inverted U-shaped connecting rod, one end of the lower screw rod extending into the lower barrel body is connected with the upper sliding plate and the lower sliding plate in a sliding manner, and blocking blocks positioned above the upper sliding plate and below the lower sliding plate are fixedly arranged on the connecting rod and the lower screw rod;
and two upper shape memory alloy parts and two lower shape memory alloy parts are respectively arranged between the upper end plate and the upper sliding plate and between the lower end plate and the lower sliding plate.
2. The shape memory alloy damper according to claim 1, wherein the upper and lower slide plates are slidably connected to inner walls of the upper and lower cylinders, respectively; the outer ends of the upper sliding plate and the lower sliding plate are respectively provided with a sliding block, and the inner walls of the upper barrel body and the lower barrel body are respectively provided with a sliding groove matched with the sliding block.
3. A shape memory alloy damper according to claim 1, wherein the inverted U-shaped connecting rods are located on both sides of the lower screw.
4. The shape memory alloy damper of claim 1, wherein the two upper and lower shape memory alloy members are respectively disposed on two sides of the upper and lower screws and are respectively disposed symmetrically with respect to the upper and lower screws.
5. A shape memory alloy damper according to claim 1, wherein said upper and lower shape memory alloy members are shape memory alloy wires.
6. The shape memory alloy damper of claim 5, wherein two ends of the upper shape memory alloy member respectively penetrate through the upper end plate and the upper sliding plate, two ends of the lower shape memory alloy member respectively penetrate through the lower end plate and the lower sliding plate, and two ends of the upper shape memory alloy member and the lower shape memory alloy member are respectively fixed through an anchorage.
7. A shape memory alloy damper of claim 1, wherein said upper and lower shape memory alloy members are shape memory alloy springs.
8. A shape memory alloy damper according to claim 7, wherein both ends of said upper shape memory alloy member are connected to the upper end plate and the upper slide plate via spring seats, respectively, and both ends of said lower shape memory alloy member are connected to the lower end plate and the lower slide plate via spring seats, respectively.
9. A shape memory alloy damper according to any one of claims 1 to 8, wherein said upper and lower shape memory alloy members are in tension when said upper and lower screws are simultaneously under tension.
10. A shape memory alloy damper according to any one of claims 1 to 8, wherein said upper and lower shape memory alloy members are in tension when said upper and lower screws are simultaneously under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210834862.9A CN115162815A (en) | 2022-07-15 | 2022-07-15 | Shape memory alloy damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210834862.9A CN115162815A (en) | 2022-07-15 | 2022-07-15 | Shape memory alloy damper |
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| Publication Number | Publication Date |
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| CN115162815A true CN115162815A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210834862.9A Withdrawn CN115162815A (en) | 2022-07-15 | 2022-07-15 | Shape memory alloy damper |
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| Country | Link |
|---|---|
| CN (1) | CN115162815A (en) |
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2022
- 2022-07-15 CN CN202210834862.9A patent/CN115162815A/en not_active Withdrawn
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Application publication date: 20221011 |
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