CN115324408A - Stretching vibration isolation device based on super-elastic shape memory alloy - Google Patents
Stretching vibration isolation device based on super-elastic shape memory alloy Download PDFInfo
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- CN115324408A CN115324408A CN202210250910.XA CN202210250910A CN115324408A CN 115324408 A CN115324408 A CN 115324408A CN 202210250910 A CN202210250910 A CN 202210250910A CN 115324408 A CN115324408 A CN 115324408A
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- connecting frame
- base
- vibration isolation
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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
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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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- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application discloses a stretching vibration isolation device based on superelastic shape memory alloy, and relates to the technical field of vibration isolation devices. The tensioning vibration isolation device based on the superelasticity shape memory alloy is characterized by comprising a base, a top seat, a lower connecting frame, an upper connecting frame, a first tensioning assembly and a second tensioning assembly; the base and the top seat are opposite in the vertical direction; the upper connecting frames are respectively connected to the lower surfaces of the two opposite sides of the top seat; the lower connecting frames are respectively connected to the upper surfaces of the bases on the same side as the upper connecting frames; two ends of the first tensioning assembly are respectively connected to the adjacent sides of the upper connecting frame of the top seat and the adjacent sides of the lower connecting frame of the base; the two end brackets of the second tensioning assembly are respectively connected to the bottom of the upper connecting frame and the top of the lower connecting frame. The first and second tensioning assemblies of embodiments of the present invention are always simultaneously, and act in opposition. The first tensioning assembly and the second tensioning assembly are arranged between the base and the top seat at intervals, so that the stability and the shock resistance of the device are enhanced.
Description
Technical Field
The application relates to the technical field of vibration isolation devices, in particular to a stretching vibration isolation device based on superelastic shape memory alloy.
Background
Shape Memory Alloys (SMA) are materials composed of two or more metal elements having a Shape Memory Effect (SME) by thermo-elastic and martensitic phase transformations and inversions thereof. Shape memory alloys are among the best shape memory materials. To date, over 50 alloys with shape memory effects have been found. There are many successful paradigms for application in the aerospace field.
An important property of shape memory alloys is pseudoelasticity (also known as superelasticity), which means that under an external force, the shape memory alloy has a much greater deformation recovery capacity than a normal metal, i.e. the large strains generated during loading are recovered with unloading. This property is commonly used in medicine and in building cushioning and daily life.
Disclosure of Invention
The embodiment of the application provides a stretching vibration isolation device based on superelastic shape memory alloy for solve the technical problems that spring vibration isolation device fatigue resistance and corrosion resistance are poor and hydraulic vibration isolation device is large in size in the prior art, and the stability and the shock resistance of a small-size reinforcing device are realized.
The embodiment of the invention provides a tensioning vibration isolation device based on superelastic shape memory alloy, which comprises a base, a top seat, a lower connecting frame, an upper connecting frame, a first tensioning assembly and a second tensioning assembly, wherein the first tensioning assembly is arranged on the top seat; the base and the top seat are opposite in the vertical direction; the upper connecting frames comprise two lower surfaces which are respectively connected to two opposite sides of the top seat; the two lower connecting frames are respectively connected to the upper surface of the base, which is on the same side as the upper connecting frame; the lower connecting frame can be clamped in the upper connecting frame; two ends of the first tensioning assembly are respectively connected to the adjacent sides of the upper connecting frame of the top seat and the adjacent sides of the lower connecting frame of the base; the two ends of the second tensioning assembly are respectively connected to the bottom of the upper connecting frame and the top of the lower connecting frame.
In a possible implementation manner, one end of the lower connecting frame far away from the base horizontally protrudes outwards; one end of the upper connecting frame, which is far away from the top seat, horizontally protrudes outwards and inwards; one end of the lower connecting frame, which is far away from the base, and one end of the upper connecting frame, which is far away from the top seat, are overlapped in the vertical direction.
In a possible implementation manner, two ends of the second tensioning assembly are respectively connected to the protrusion of the end of the lower connecting frame far away from the base and the protrusion of the end of the upper connecting frame far away from the top seat, and are vertically connected.
In a possible implementation manner, the first tensioning assembly and the second tensioning assembly comprise a plurality of SMA wires, and the SMA wires are uniformly arranged between the top seat and the base or between the upper connecting frame and the lower connecting frame at intervals.
In one possible implementation, the lengths of the upper connection frame and the lower connection frame are adapted to the height of the tensioned vibration isolation device based on superelastic shape memory alloy, and the end of the upper connection frame away from the top seat is located below the end of the lower connection frame away from the base seat.
One or more technical schemes provided in the embodiments of the present invention have at least the following technical effects or advantages:
according to the embodiment of the invention, the first tensioning assembly is connected between the base and the top seat, and the second tensioning assembly is connected between the lower connecting frame and the upper connecting frame. When the device vibrates, if the device is compressed in the vertical direction, the first tensioning assembly is compressed, and the second tensioning assembly is stretched; if the device is stretched in the vertical direction, the first tensioning assembly is stretched and the second tensioning assembly is compressed. The first and second tensioning assemblies are always simultaneously, and oppositely, acting. Meanwhile, the first tensioning assembly and the second tensioning assembly are arranged between the base and the top seat at intervals, so that the stability and the shock resistance of the device are enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tensioned vibration isolation device based on superelastic shape memory alloy according to an embodiment of the present disclosure.
Reference numerals: 11-a base; 12-a lower link; 21-a top seat; 22-upper connecting frame; 3-a first tensioning assembly; 4-a second tensioning assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
The present embodiment provides a tensioned vibration isolation device based on superelastic shape memory alloy, please refer to fig. 1 in the drawings of the specification.
Referring to fig. 1, a tensioning vibration isolation device based on superelastic shape memory alloy comprises a base 11, a top seat 21, a lower connecting frame 12, an upper connecting frame 22, a first tensioning assembly 3 and a second tensioning assembly 4; the base 11 and the top seat 21 are vertically opposed; the upper connection frames 22 include two lower surfaces respectively connected to opposite sides of the top base 21; the two lower connecting frames 12 are respectively connected to the upper surfaces of the base 11 on the same side as the upper connecting frame 22; the lower connecting frame 12 can be clamped in the upper connecting frame 22; both ends of the first tensioning member 3 are respectively connected to the adjacent sides of the upper connecting frame 22 of the top base 21 and the adjacent sides of the lower connecting frame 12 of the base 11; the two ends of the second tensioning member 4 are respectively connected to the bottom of the upper connecting frame 22 and the top of the lower connecting frame 12.
The tensioning vibration isolation device based on the superelastic shape memory alloy is arranged in a building or a device needing vibration isolation, and the base 11 and the top seat 21 are respectively connected to the lower surface and the upper surface in the building or the device. The first tension assembly 3 is connected between the base 11 and the top base 21, and the second tension assembly 4 is connected between the lower link frame 12 and the upper link frame 22. When the device vibrates and is compressed in the vertical direction, the first tensioning assembly 3 is compressed, and the second tensioning assembly 4 is stretched; when the apparatus is stretched in the vertical direction, the first tensioning assembly 3 is stretched and the second tensioning assembly 4 is compressed. The first tensioning assembly 3 and the second tensioning assembly 4 are always simultaneously and oppositely acting. Meanwhile, the first tensioning assembly 3 and the second tensioning assembly 4 are arranged between the base 11 and the top seat 21 at intervals, so that the stability and the shock resistance of the device can be enhanced.
According to the embodiment provided by the invention, due to the superelasticity of the SMA, compared with a spring vibration isolation device in the prior art, the SMA has better fatigue resistance and corrosion resistance, and meanwhile, compared with a hydraulic vibration isolation device in the prior art, the SMA has a small volume and a wider application range.
One end of the lower connecting frame 12 far away from the base 11 horizontally protrudes outwards; one end of the upper connecting frame 22 far away from the top seat 21 horizontally protrudes outwards and inwards; there is a coincidence in the vertical direction between the end of the lower link 12 remote from the base 11 and the end of the upper link 22 remote from the top base 21. Both ends of the second tension assembly 4 are respectively connected to the protrusion of one end of the lower link 12 far from the base 11 and the protrusion of one end of the upper link 22 far from the top base 21, and are vertically connected.
The lower and upper attachment brackets 12, 22 are used to attach the second tensioning assembly 4. The lower connecting frame 12 is clamped in the upper connecting frame 22, or the upper connecting frame 22 is clamped in the lower connecting frame 12, as long as the upper connecting frame 22 and the lower connecting frame 12 have overlapped parts on a vertical surface and move relatively in the vertical direction. When the apparatus is compressed, the upper 22 and lower 12 attachment frames end away and the second tensioning assembly 4 is tensioned; as the apparatus is stretched, the upper 22 and lower 12 attachment frames come into close end proximity and the second tension assembly 4 is compressed.
The first tensioning assembly 3 and the second tensioning assembly 4 comprise a plurality of SMA wires which are uniformly arranged between the top seat 21 and the base 11 or between the upper connecting frame 22 and the lower connecting frame 12 at intervals.
The tensioning assembly has better anti-seismic effect by means of strong superelasticity restoring capacity of the SMA, and particularly has the effect which cannot be achieved by the prior art when the tensioning assembly is integrally tensioned.
The lengths of the upper connecting frame 22 and the lower connecting frame 12 are adapted to the height of the tension vibration isolation device based on the superelastic shape memory alloy, and one end of the upper connecting frame 22, which is far away from the top seat 21, is located below one end of the lower connecting frame 12, which is far away from the base seat 11.
The overall dimensions of the device need to be adapted to the building in which it is used. Generally, the greater the distance between the top seat 21 and the bottom seat 11, the longer the first tensioning assembly 3; the upper and lower attachment brackets 22, 12 are about the greater the length, the longer the second tension assembly 4 is attached. The longer the tension assembly, the greater the tensile pull range.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (5)
1. A tensioning vibration isolation device based on superelastic shape memory alloy is characterized by comprising a base (11), a top seat (21), a lower connecting frame (12), an upper connecting frame (22), a first tensioning assembly (3) and a second tensioning assembly (4);
the base (11) and the top seat (21) are opposite in the vertical direction;
the upper connecting frames (22) comprise two lower surfaces which are respectively connected to two opposite sides of the top seat (21);
the two lower connecting frames (12) are respectively connected to the upper surface of the base (11) on the same side as the upper connecting frame (22);
the lower connecting frame (12) can be clamped in the upper connecting frame (22);
two ends of the first tensioning component (3) are respectively connected to the adjacent sides of the upper connecting frame (22) of the top seat (21) and the adjacent sides of the lower connecting frame (12) of the base (11);
the two ends of the second tensioning assembly (4) are respectively connected to the bottom of the upper connecting frame (22) and the top of the lower connecting frame (12).
2. A tensioned vibration isolation mounting based on superelastic shape memory alloy according to claim 1, wherein the end of said lower attachment frame (12) remote from said base (11) projects horizontally outwardly;
one end of the upper connecting frame (22) far away from the top seat (21) horizontally protrudes outwards and inwards;
one end of the lower connecting frame (12) far away from the base (11) and one end of the upper connecting frame (22) far away from the top seat (21) are overlapped in the vertical direction.
3. A tensioned vibration isolation mounting based on superelastic shape memory alloy according to claim 2, wherein both ends of the second tensioning assembly (4) are connected to the protrusion of the end of the lower connecting frame (12) distal from the base (11) and the protrusion of the end of the upper connecting frame (22) distal from the top base (21), respectively, and are connected vertically.
4. A superelastic shape memory alloy-based tensile vibration isolation device according to claim 1, wherein said first and second tension assemblies (3, 4) comprise a plurality of SMA wires arranged at even intervals between said top base (21) and said bottom base (11), or said upper and lower attachment frames (22, 12).
5. A tensioned vibration isolation mounting based on superelastic shape memory alloy according to claim 1, wherein the lengths of the upper connection bracket (22) and the lower connection bracket (12) are adapted to the height of the tensioned vibration isolation mounting based on superelastic shape memory alloy, and the end of the upper connection bracket (22) remote from the top seat (21) is located below the end of the lower connection bracket (12) remote from the base seat (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210250910.XA CN115324408A (en) | 2022-03-15 | 2022-03-15 | Stretching vibration isolation device based on super-elastic shape memory alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210250910.XA CN115324408A (en) | 2022-03-15 | 2022-03-15 | Stretching vibration isolation device based on super-elastic shape memory alloy |
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| CN115324408A true CN115324408A (en) | 2022-11-11 |
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| CN202210250910.XA Pending CN115324408A (en) | 2022-03-15 | 2022-03-15 | Stretching vibration isolation device based on super-elastic shape memory alloy |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615225Y (en) * | 2003-04-25 | 2004-05-12 | 北京工业大学 | Shape memory alloy damper for construction structure |
| CN206468079U (en) * | 2017-01-16 | 2017-09-05 | 西京学院 | A kind of viscous damping liquid composite S MA dampers |
| CN109707103A (en) * | 2019-01-24 | 2019-05-03 | 同济大学 | The replaceable coupling beam of Self-resetting shear energy dissipation type |
| KR102310952B1 (en) * | 2021-04-09 | 2021-10-08 | 한국이미지시스템(주) | Seismic isolation device |
-
2022
- 2022-03-15 CN CN202210250910.XA patent/CN115324408A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615225Y (en) * | 2003-04-25 | 2004-05-12 | 北京工业大学 | Shape memory alloy damper for construction structure |
| CN206468079U (en) * | 2017-01-16 | 2017-09-05 | 西京学院 | A kind of viscous damping liquid composite S MA dampers |
| CN109707103A (en) * | 2019-01-24 | 2019-05-03 | 同济大学 | The replaceable coupling beam of Self-resetting shear energy dissipation type |
| KR102310952B1 (en) * | 2021-04-09 | 2021-10-08 | 한국이미지시스템(주) | Seismic isolation device |
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