CN114792960A - Vibration damper based on shape memory alloy - Google Patents
Vibration damper based on shape memory alloy Download PDFInfo
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- CN114792960A CN114792960A CN202210590329.2A CN202210590329A CN114792960A CN 114792960 A CN114792960 A CN 114792960A CN 202210590329 A CN202210590329 A CN 202210590329A CN 114792960 A CN114792960 A CN 114792960A
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- memory alloy
- shape memory
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- shaped
- rigid rod
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 43
- 238000013016 damping Methods 0.000 claims abstract description 62
- 238000005192 partition Methods 0.000 claims description 25
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 239000003190 viscoelastic substance Substances 0.000 claims description 6
- 238000000638 solvent extraction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 16
- 239000004020 conductor Substances 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
- H02G7/125—Damping spacers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration damper based on shape memory alloy, belonging to the technical field of a spacing rod of a power transmission line, comprising a plurality of fan-shaped annular box bodies arranged along the annular direction, wherein adjacent fan-shaped annular box bodies are connected through a rigid rod, a swing shaft is sleeved on the periphery of the rigid rod, and the swing shaft can slide and swing along the circumferential direction of the rigid rod; the fan-shaped box body is internally provided with a mass ball, and two sides of the mass ball are connected with the fan-shaped box body through shape memory alloy springs. The device can reduce the galloping phenomenon of power transmission line under the effect of external load, reaches the effect of high-efficient damping, guarantees power transmission line's safety.
Description
Technical Field
The invention belongs to the technical field of power transmission line spacers, and particularly relates to a vibration damper based on shape memory alloy.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Overhead transmission lines are the most important facilities for power transmission, and the safe operation of the overhead transmission lines is very important. The power transmission line is continuously developed towards the direction of high voltage and large span, and the normal work of the power transmission line is the basis for ensuring the normal production and life of people. While overhead transmission lines can cause various accidents under the action of natural conditions in the running process, waving is one of the more serious phenomena. The galloping is a large-amplitude self-excited vibration generated by the uneven ice-coated wire under the action of external loads such as wind, the galloping of the wire can generate a lot of harm, accidents such as large-area power failure and the like are easily caused, and the economic loss is huge.
At present, the most important means for solving conductor galloping in the power transmission line is to add equipment with an anti-galloping function to a line section with the possibility of galloping in the line design or operation stage, so as to prevent the conductor galloping in advance. The conductor anti-galloping device is arranged on the multi-split conductors, ensures that the multi-split conductors keep a certain distance under the influence of wind power, ice load, conductor galloping, short-circuit current and the like, and has the functions of inhibiting wind vibration and sub-span oscillation.
At present, the spacer mainly comprises two types of damping spacers and non-damping spacers, and the damping type spacer is characterized in that: rubber is used as damping material at the movable joint of the spacer to consume the vibration energy of the lead and generate damping effect on the vibration of the lead, but the vibration damping effect is very limited. In addition, most of the current spacers limit the degree of freedom of the twisting direction of the conductor, so that the conductor is easy to form uneven ice coating, and the probability of galloping is greatly improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vibration damper based on shape memory alloy, which can reduce the galloping phenomenon of a transmission line under the action of external load, achieve the effect of efficient vibration damping and ensure the safety of the transmission line.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a vibration damper based on shape memory alloy, which comprises a plurality of fan-shaped ring-shaped box bodies arranged along the circumferential direction, wherein adjacent fan-shaped ring-shaped box bodies are connected through a rigid rod; the fan-shaped box body is internally provided with a mass ball, and two sides of the mass ball are connected with the fan-shaped box body through shape memory alloy springs.
As a further technical scheme, the outer side of the swing shaft is fixedly connected with a damping spacing rod, the end part of the damping spacing rod is fixedly connected with a damping wire clamp, and the damping spacing rod and the damping wire clamp form a cantilever shape
As a further technical scheme, two sides of the swing shaft are connected with the fan-shaped annular box body through shape memory alloy springs.
As a further technical scheme, the two ends of the fan-shaped annular box body are respectively provided with a separation plate, and the separation plates separate the fan-shaped annular box body from the rigid rods.
As a further technical scheme, two ends of the rigid rod are connected with the partition plates at the end parts of two adjacent fan-shaped annular box bodies.
As a further technical scheme, a shape memory alloy spring connected with the mass ball is connected to the inner side of the partition plate.
As a further technical scheme, a shape memory alloy spring connected with the pendulum shaft is connected to the outer side of the partition plate.
As a further technical scheme, the rigid rod is arc-shaped, the partition plates are arranged along the radial direction of the fan-shaped annular box body, and the partition plates are vertically connected with the rigid rod.
As a further technical scheme, a viscoelastic material layer is adhered to the outer wall of the mass ball; the fan-shaped ring-shaped box bodies are uniformly distributed at intervals, and the fan-shaped ring-shaped box bodies and the rigid rods are sequentially arranged in a staggered manner.
As a further technical scheme, the inner side walls of the adjacent fan-shaped annular box bodies are connected into a whole through a semicircular wall.
The beneficial effects of the invention are as follows:
according to the damping device, the mass balls in the fan-shaped ring box body can vibrate along two directions respectively, the frequency of the damper is ensured to be consistent with the natural frequency of a circuit by adjusting the rigidity of the spring or the mass of the mass block, and the optimal damping effect is achieved; the characteristics of high elasticity and high damping of the shape memory alloy and the collision between the mass ball and the cylinder wall can effectively dissipate energy, reduce the large-amplitude vibration of the transmission line, realize the release of the torque of the transmission line after the installation of the spacer, reduce the possibility of the line waving and ensure the normal work of the transmission line to a great extent.
According to the vibration damper, the damping wire clamps are connected with the power transmission line, the swing shaft is connected with the damping spacing rod and the rigid rod, the damping spacing rod is allowed to swing and rotate in the axial direction of the rigid rod, the torque of the power transmission line is reduced, the probability of galloping is reduced, the swing shaft is connected with the partition plate through the memory alloy spring, the damping force provided by the shape memory alloy spring can efficiently reduce the vibration of the power transmission line, and the swing shaft can restore to the original shape after being deformed, so that the effects of energy consumption and vibration reduction are achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention.
FIG. 1 is a schematic illustration of a vibration damping device according to one or more embodiments of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1;
in the figure: the space or size between each other is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
the damping device comprises a ring-shaped box body 1, a rigid rod 2, a partition plate 3, a shape memory alloy spring 4, a damping spacer 5, a damping wire clamp 6, a mass ball 7, a viscoelastic material layer 8, a swing shaft 9 and a semicircular wall 10.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In a typical embodiment of the present invention, as shown in fig. 1, a vibration damping device based on a shape memory alloy is proposed, which is composed of a box, a rigid rod, a shape memory alloy spring, a mass ball and the like.
Specifically, this conductor spacer includes a plurality of fan ring shape boxes 1 that set up along ring circumference interval, connects through rigidity pole 2 between the adjacent fan ring shape box, and fan ring shape box 1 both ends are separated by division board 3, also the division board separates into two types of regions that set up crisscross in proper order with whole conductor spacer, and wherein rigidity pole portion is divided into open type structure region, and fan ring shape box is closed structure region, and two regions are crisscross in proper order and are set up whole ring structure.
The inner side walls of the adjacent fan-shaped ring-shaped box bodies are connected into a whole through a semicircular wall 10, and the outer side wall part between the fan-shaped ring-shaped box bodies is completely opened. The semicircular wall is semicircular along the radial section of the circular structure, and the semicircular wall is arc-shaped along the axial section of the circular structure; during specific processing, the annular box body is arranged, half of the side wall of the box body is removed in an open structure area, and then the partition plates are plugged at two ends of the fan-shaped annular box body.
In this embodiment, 4 fan-shaped box bodies are provided, 4 corresponding rigid rods are also provided, the 4 fan-shaped box bodies are uniformly distributed along the circumferential direction, and the two ends of each rigid rod are fixedly connected with the partition plates 3 connected to the end parts of the two adjacent fan-shaped box bodies.
The rigid rod 2 is arc-shaped, the partition plates are arranged along the radial direction of the fan-shaped box body, and the partition plates are vertically connected with the rigid rod.
In this embodiment, the rigid rod ends are welded at the center of the partition plate 3.
In the embodiment, the fan-shaped annular box body is made of Fiber Reinforced Plastic (FRP), is light and hard, is insulating, has high mechanical strength and is corrosion-resistant, and the load of a power transmission line can be lightened.
The partition plate is a metal plate, can partition the fan-shaped annular box body and the rigid rod, is well connected with the spring and plays a role in limiting the internal components of the area.
The periphery of the rigid rod 2 in the open type structure area is sleeved with a swing shaft 9, and the swing shaft 9 can slide and swing along the circumferential direction of the rigid rod 2; the outer side of the swing shaft 9 is fixedly connected with the damping spacing rod 5, the end part of the damping spacing rod 5 is fixedly connected with the damping wire clamp 6, and the damping spacing rod and the damping wire clamp form a cantilever shape.
The two sides of the swing shaft 9 are connected with the division plates 3 of the fan-shaped ring box body through the shape memory alloy springs 4, so that the swing of the swing shaft and the sliding along the rigid rods are realized, the torque of the power transmission line is released, and meanwhile, the reset effect is realized.
In this embodiment, the spacer damper 5 is located at 1/4 positions of the whole circular ring structure, and the damping wire clamp on the spacer damper is a circular hole-shaped damping wire clamp, and is rigidly connected to the spacer damper, so as to provide a part of damping force when the circuit vibrates.
The swing shaft needs to be evenly coated with lubricating oil, so that the friction resistance is reduced, and the rotation and the sliding of the spacer along the rigid rod can be ensured.
The mass ball 7 is arranged in the fan-shaped annular box body 1 of the closed structural area, two sides of the mass ball 7 are connected to the partition plate 3 of the fan-shaped annular box body 1 through the shape memory alloy spring 4, and the frequency modulation and vibration reduction effects can be achieved in two directions due to the collision of the mass ball and the side wall of the fan-shaped annular box body.
The shape memory alloy spring connected with the mass ball is connected with the inner side of the partition plate (namely, one side positioned in the fan-shaped annular box body), and the shape memory alloy spring connected with the swing shaft is connected with the outer side of the partition plate (namely, one side positioned outside the fan-shaped annular box body).
The outer wall of the mass ball 7 is pasted with a viscoelastic material layer 8, the mass ball can swing freely in the fan-shaped annular box body and can collide with the side wall, and the effects of energy absorption, energy dissipation and vibration reduction are achieved.
The viscoelastic material layer can be made of rubber, silica gel, latex or epoxy resin.
The mass ball can vibrate along two directions, and the damping control effect on the power transmission line system can be realized by adjusting the rigidity of the memory alloy spring, the radius of the mass ball and the like.
The shape memory alloy spring can provide stable damping force, can restore to the original shape after deformation, achieves the effect of energy consumption, and has the advantages of good durability and corrosion resistance, long service life, large deformation, repeated use and the like.
The vibration attenuation damping spacer rod can effectively control the galloping phenomenon of the transmission line, and greatly reduces the damage of the vibration of the transmission line to the structure; the characteristics of high elasticity and high damping of the shape memory alloy and the collision between the mass ball and the cylinder wall in the vibration damper can effectively dissipate energy to achieve the effect of energy dissipation and vibration damping, and meanwhile, the frequencies of the vibration damper in two directions can be adjusted, so that the vibration damper has strong adaptability. In addition, the damping spacer can swing and rotate along the rigid rod, the torque of the power transmission line is released, the probability of galloping can be greatly reduced, and the normal operation of the power transmission line is guaranteed. The vibration attenuation damping spacer has the advantages of simple structure, convenience in processing, strong durability and corrosion resistance, high cost performance and convenience in installation.
The specific use method of the spacer of the invention is as follows:
when the damping spacing rod is used, the damping wire clamp is connected with the power transmission line, the swing shaft is connected with the damping spacing rod and the rigid rod, and the damping spacing rod is allowed to axially swing and rotate on the rigid rod, so that the torque of the power transmission line is reduced, and the probability of galloping is reduced;
the pendulum shaft is connected with the partition plate through the memory alloy spring, the damping force provided by the shape memory alloy spring can efficiently reduce the vibration of the power transmission line, and the pendulum shaft can restore the original shape after being deformed, so that the effects of energy consumption and vibration reduction are achieved;
the mass balls in the fan-shaped ring box body can vibrate along two directions respectively, the frequency of the vibration absorber is ensured to be consistent with the natural frequency of a circuit by adjusting the rigidity of the spring or the mass of the mass block, and the optimal vibration absorption effect is achieved.
When mass ball and spring rate set up in this embodiment, the attention that needs is: firstly, the mass of the mass ball and the rigidity of the memory alloy spring are reasonably selected according to the frequency of the structure, so that the optimal effect is achieved; secondly, the surface of the rigid rod is lubricated to ensure that the pendulum shaft connected with the damping spacing rod can swing and slide normally; thirdly, the viscoelastic material is only arranged on the surface of the mass ball to reduce the manufacturing cost; fourthly, the device should be subjected to insulation treatment, so that the safety of the circuit in normal work is ensured.
Compared with the traditional device, the characteristics of high elasticity and high damping of the shape memory alloy and the collision between the mass ball and the side wall of the box body can effectively dissipate energy, reduce the large-amplitude vibration of the power transmission line, realize the release of the torque of the power transmission line after the spacer is installed, reduce the possibility of galloping of the line and ensure the normal work of the power transmission line to a great extent. The shape memory alloy spring type intelligent material with special novel functions has shape memory effect and high-efficiency damping performance, can overcome the characteristic of poor durability and corrosion resistance of the traditional material, and has long service cycle.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The vibration damper based on the shape memory alloy is characterized by comprising a plurality of fan-shaped ring-shaped box bodies arranged along the circumferential direction, wherein adjacent fan-shaped ring-shaped box bodies are connected through a rigid rod, a swing shaft is sleeved on the periphery of the rigid rod, and the swing shaft can slide and swing along the circumferential direction of the rigid rod; the fan-shaped box body is internally provided with a mass ball, and two sides of the mass ball are connected with the fan-shaped box body through shape memory alloy springs.
2. The vibration damping device based on shape memory alloy as claimed in claim 1, wherein the outside of the pendulum shaft is fixedly connected with a damping spacer, the end of the damping spacer is fixedly connected with a damping wire clamp, and the damping spacer and the damping wire clamp form a cantilever shape.
3. The vibration damping device based on shape memory alloy as claimed in claim 1 or 2, wherein both sides of the swing shaft are connected with the fan-ring shaped case through the shape memory alloy spring.
4. The vibration damping device based on shape memory alloy as claimed in claim 1, wherein the fan-shaped ring-shaped case is provided at both ends with partition plates, the partition plates partitioning the fan-shaped ring-shaped case and the rigid rod.
5. The vibration damping device based on a shape memory alloy as claimed in claim 4, wherein the rigid rod is connected at both ends to the partition plates of the two adjacent fan-ring box ends.
6. The vibration damping apparatus based on a shape memory alloy according to claim 4, wherein the shape memory alloy spring connected to the mass ball is connected to an inner side of the partition plate.
7. The vibration damping device based on shape memory alloy as claimed in claim 4, wherein the shape memory alloy spring connected to the pendulum shaft is connected to an outer side of the partition plate.
8. The vibration damping device based on a shape memory alloy as claimed in claim 1, characterized in that the rigid rod is in an arc shape, the partition plates are arranged along the radial direction of the fan-ring shaped box body, and the partition plates are perpendicularly connected with the rigid rod.
9. The vibration damping device based on a shape memory alloy as claimed in claim 1, wherein the mass ball outer wall is pasted with a viscoelastic material layer; the fan-shaped ring-shaped box bodies are uniformly distributed at intervals, and the fan-shaped ring-shaped box bodies and the rigid rods are sequentially arranged in a staggered manner.
10. The vibration damping device based on shape memory alloy as claimed in claim 1, wherein the inner sidewalls of the adjacent fan-shaped case bodies are integrally connected by a semicircular wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590329.2A CN114792960B (en) | 2022-05-27 | 2022-05-27 | Vibration damper based on shape memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210590329.2A CN114792960B (en) | 2022-05-27 | 2022-05-27 | Vibration damper based on shape memory alloy |
Publications (2)
| Publication Number | Publication Date |
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| CN114792960A true CN114792960A (en) | 2022-07-26 |
| CN114792960B CN114792960B (en) | 2023-11-21 |
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| CN202210590329.2A Active CN114792960B (en) | 2022-05-27 | 2022-05-27 | Vibration damper based on shape memory alloy |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159647A1 (en) * | 2012-04-24 | 2013-10-31 | 国家电网公司 | Five-rod lead-waving resistant power vibration absorber for transmission lines |
| CN204517335U (en) * | 2015-05-08 | 2015-07-29 | 国网河南省电力公司电力科学研究院 | A kind of multifunctional vibration damping anti-dance device |
| CN104836183A (en) * | 2015-05-08 | 2015-08-12 | 国网河南省电力公司电力科学研究院 | Annular multi-split vibration-damping galloping preventer |
| CN105552813A (en) * | 2016-01-26 | 2016-05-04 | 大连理工大学 | Collision energy-dissipation spacing rod |
| CN109149490A (en) * | 2018-09-30 | 2019-01-04 | 山东大学 | It is a kind of windy to anti-dance vibration absorber |
-
2022
- 2022-05-27 CN CN202210590329.2A patent/CN114792960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159647A1 (en) * | 2012-04-24 | 2013-10-31 | 国家电网公司 | Five-rod lead-waving resistant power vibration absorber for transmission lines |
| CN204517335U (en) * | 2015-05-08 | 2015-07-29 | 国网河南省电力公司电力科学研究院 | A kind of multifunctional vibration damping anti-dance device |
| CN104836183A (en) * | 2015-05-08 | 2015-08-12 | 国网河南省电力公司电力科学研究院 | Annular multi-split vibration-damping galloping preventer |
| CN105552813A (en) * | 2016-01-26 | 2016-05-04 | 大连理工大学 | Collision energy-dissipation spacing rod |
| CN109149490A (en) * | 2018-09-30 | 2019-01-04 | 山东大学 | It is a kind of windy to anti-dance vibration absorber |
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| Publication number | Publication date |
|---|---|
| CN114792960B (en) | 2023-11-21 |
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Inventor after: Gai Xia Inventor after: Wang Huisheng Inventor after: Liu Yanling Inventor after: Ma Ruisheng Inventor before: Gai Xia Inventor before: Wang Huisheng Inventor before: Liu Yanling Inventor before: Ma Ruisheng |
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