CN107834481A - Suppression aerial cable aeolian vibration method based on high damping alloy material damper - Google Patents
Suppression aerial cable aeolian vibration method based on high damping alloy material damper Download PDFInfo
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- CN107834481A CN107834481A CN201711075912.5A CN201711075912A CN107834481A CN 107834481 A CN107834481 A CN 107834481A CN 201711075912 A CN201711075912 A CN 201711075912A CN 107834481 A CN107834481 A CN 107834481A
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- elastic rod
- elastic
- high damping
- alloy material
- wire
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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
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of suppression aerial cable aeolian vibration method based on high damping alloy material damper, with composite material integral formed processing technology wire clamp and connecting plate be formed integrally structure and with made of high damping alloy material elastic rod be sequentially connected, its line card is arranged on wire, line card shakes with wire and drives the vibrations of the elastic rod connected by connecting plate, two tup vertical tremors at elastic rod both ends, using connecting rod to the reinforcement point of elastic rod as boundary, two tups are divided into two independent anti-shock systems；The elastic rod being connected with the tup then alternating bending in the presence of tup vertical tremor produces alternation moment of flexure, during alternating bending, elastic rod relatively moves with thermo elastic martensite boundary by parent phase with thermo elastic martensite twins sub-structure when elastic rod vibrates makes the structural damping of elastic rod absorb vibrational energy；By the present invention in that with fibre reinforced composites, solve existing vibration hammer absorb vibrational energy ability it is weak, it is oxidizable, the problem of resistance to corrosion difference.
Description
Technical field：
The present invention relates to a kind of electric power repair field, more particularly to a kind of suppression frame based on high damping alloy material damper
Ceases to be busy cable aeolian vibration method.
Background technology：
Aeolian vibration is very big to aerial cable especially large span high voltage electricity transmission conductive wire security and aging effects, and gentle breeze is encouraged
The vibration control of lower aerial cable can improve the wire life-span and prevent line-outage contingency.Vibration control technology is divided into passively
Control and active control, due to the requirement of controller operating position and environment, passive passive control is that wire main at present is micro-
Wind shake flowing control method, is implemented as stockbridge damper.
Current existing stockbridge damper is mainly made up of metal material, based on steel；Structure type have steel strand wires stockbridge damper,
Damping spring stockbridge damper etc..Although steel shockproof hammer can play a part of vibration control effect, its own damping is small, absorbs
The ability of vibrational energy is weak, oxidizable, and resistance to corrosion is poor, short life, and maintaining cost is high.Conventional metals stockbridge damper hammer body
Material is cast iron, is easily got rusty；And hammer body has space, easy ponding accumulated snow, influences damper vibrationproof performance；Wire clamp uses local pressing plate
Clamped design, because clamping plate is metallic conductor, closed-loop path can be formed, eddy-current loss can be produced, increase circuit energy consumption.
With the development of material technology, Mn-Cu alloy materials are found in has very high Internal friction at room temperature.With γ
The physical essence that the Mn-Cu alloys of phase constitution obtain high-damping is that antiferromagnetic transition forms larger lattice distortion, triggers
The formation of a large amount of microtwinnings.If this lattice distortion induces martensitic traoformation, martensitic twin will be formed.Such alloy
Belong to twin type damping alloy, it is organized as unstable thermo elastic martensite, and substructure is feather organization, by parent phase and heat
The movement of elastic martensite interface and the mobile consumed energy of thermo elastic martensite twins sub-structure, produce high-damping phenomenon.
The content of the invention：
The technical problems to be solved by the invention are：Overcome the deficiencies in the prior art, there is provided it is a kind of it is simple in construction, be easy to carry,
By using fibre reinforced composites, solve existing vibration hammer absorb vibrational energy ability it is weak, oxidizable, anticorrosive energy
The problem of power difference, and eliminate the suppression aerial cable aeolian vibration side based on high damping alloy material damper caused by vortex
Method.
The technical scheme is that：A kind of suppression aerial cable aeolian vibration based on high damping alloy material damper
Method, its step are：
A, with composite material integral formed processing technology wire clamp and connecting plate be formed integrally structure and with by high damping alloy
Elastic rod is sequentially connected made of material, and its line card is arranged on wire；
B, line card shakes with wire and drives the vibrations of the elastic rod connected by connecting plate；
C, two tup vertical tremors at elastic rod both ends, using connecting rod to the reinforcement point of elastic rod as boundary, two tups are divided into
Two independent anti-shock systems；
D, the elastic rod being connected with the tup then alternating bending in the presence of tup vertical tremor produces alternation moment of flexure；
E, during alternating bending, elastic rod is sub- with thermo elastic martensite twin with thermo elastic martensite boundary by parent phase
Structure relatively moves when elastic rod vibrates makes the structural damping of elastic rod absorb vibrational energy so that the amplitude of wire subtracts
It is small.
The wire clamp and connecting plate are made with composite material integral formed processing technology.The composite increases for fiber
Strong composite, the high damping alloy material are Mn-Cu alloy materials.
The beneficial effects of the invention are as follows：
1st, by the present invention in that with fibre reinforced composites and high damping alloy material, solve existing vibration hammer and absorb vibration
The ability of energy is weak, oxidizable, the problem of resistance to corrosion difference, and eliminates vortex and produces, reduces circuit energy consumption.
2nd, present invention uses Mn-Cu alloy material elastic rods, this alloy material to rely on parent phase and thermo elastic martensite
The movement of boundary and the mobile consumed energy of thermo elastic martensite twins sub-structure, macro manifestations are with high-damping, are being shaken
More energy are absorbed when dynamic, the effect for suppressing conductor vibration is more obvious.
3rd, the present invention has the relatively low natural frequency of vibration, with blowing air over Karman vortex street vortex shedding frequency phase-difference caused by wire
It is larger, it is not easy to produce resonance, the intensity of Mn-Cu alloy material elastic rods is larger, reaches the feelings of energy-absorbing requirement in tup displacement
Elastic rod still possesses enough intensity under condition..
4th, the composite that the present invention uses has insulating properties, is avoided that near wire and produces vortex increase transmission of electricity damage
Consumption.
5th, the present invention has very strong inoxidizability and corrosion resistance, adapts to the severe chemical environment such as coastal area,
Also the life-span of stockbridge damper can be improved.
6th, the present invention has good mechanical performance and resist chemical performance, and cost is extremely low on care and maintenance, several
Any later maintenance is not needed.
Brief description of the drawings：
Fig. 1 is the structural representation of high damping alloy material damper.
Fig. 2 is the mechanical model of high damping alloy material damper.
Fig. 3 is Fig. 1 left view.
Embodiment：
Embodiment：Referring to Fig. 1, Fig. 2 and Fig. 3, in figure, 1- wire clamps, 2- elastic rods, 3- tups, 4- connecting plates.
Suppression aerial cable aeolian vibration method based on high damping alloy material damper, its step are：
A, wire clamp 1 and connecting plate 4 are formed integrally structure and with being closed by high-damping with composite material integral formed processing technology
Elastic rod 2 is sequentially connected made of golden material, and its line card is arranged on wire；
B, line card shakes with wire and drives the vibrations of the elastic rod 2 connected by connecting plate 4；
C, two vertical tremors of tup 3 at the both ends of elastic rod 2, using connecting rod to the reinforcement point of elastic rod 2 as boundary, two tups 3
It is divided into two independent anti-shock systems；
D, the elastic rod 2 being connected with the tup 3 then alternating bending in the presence of the vertical tremor of tup 3 produces alternation moment of flexure；
E, during alternating bending, elastic rod 2 is by parent phase and thermo elastic martensite boundary and thermo elastic martensite twin
Substructure relatively moves when elastic rod 2 vibrates makes the structural damping of elastic rod 2 absorb vibrational energy so that wire shakes
Width reduces.
Wire clamp 1 and connecting plate 4 are made with composite material integral formed processing technology.Composite is fiber-reinforced composite
Material, high damping alloy material are Mn-Cu alloy materials.
As shown in figure 1, from amechanical angle, due to the clamping effect of rigidity of wire clamp 1 and connecting plate 4 to elastic rod 2, folder
Head both sides are substantially independent of each other, thus damper can be divided into two subsystems, each subsystem list using clamping point as boundary
Solely consider.Further simplification can be made to subsystem：Tup 3 is considered by rigidity, i.e., only counts its quality and inertia, and disregards its bullet
Property；To elastic rod 2, its elasticity is only counted, disregards its inertia.
As shown in Fig. 2 wherein Y (t) is excitation of the wire to stockbridge damper, m is the quality of tup 3, and L is elastic rod 2 from line
Folder 1 is exported to the length with the tie point of tup 3.Under Y (t) excitation, tup 3 will up-down vibration, and elastic rod 2 is then being handed over
Alternating bending in the presence of change moment of flexure, in vibration processes, the structural damping of elastic rod 2 can constantly absorb vibrational energy, make
The amplitude for obtaining wire reduces, and reaches the purpose of vibration control.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (3)
1. a kind of suppression aerial cable aeolian vibration method based on high damping alloy material damper, its step are：
A, with composite material integral formed processing technology wire clamp and connecting plate be formed integrally structure and with by high damping alloy
Elastic rod is sequentially connected made of material, and its line card is arranged on wire；
B, line card shakes with wire and drives the vibrations of the elastic rod connected by connecting plate；
C, two tup vertical tremors at elastic rod both ends, using connecting rod to the reinforcement point of elastic rod as boundary, two tups are divided into
Two independent anti-shock systems；
D, the elastic rod being connected with the tup then alternating bending in the presence of tup vertical tremor produces alternation moment of flexure；
E, during alternating bending, elastic rod is sub- with thermo elastic martensite twin with thermo elastic martensite boundary by parent phase
Structure relatively moves when elastic rod vibrates makes the structural damping of elastic rod absorb vibrational energy so that the amplitude of wire subtracts
It is small.
2. the suppression aerial cable aeolian vibration method according to claim 1 based on high damping alloy material damper,
It is characterized in that：The wire clamp and connecting plate are made with composite material integral formed processing technology.
3. the suppression aerial cable aeolian vibration side based on high damping alloy material damper according to claim 1 and 2
Method, it is characterized in that：The composite is fibre reinforced composites, and the high damping alloy material is Mn-Cu alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075912.5A CN107834481A (en) | 2017-11-06 | 2017-11-06 | Suppression aerial cable aeolian vibration method based on high damping alloy material damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075912.5A CN107834481A (en) | 2017-11-06 | 2017-11-06 | Suppression aerial cable aeolian vibration method based on high damping alloy material damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834481A true CN107834481A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711075912.5A Pending CN107834481A (en) | 2017-11-06 | 2017-11-06 | Suppression aerial cable aeolian vibration method based on high damping alloy material damper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552038A (en) * | 2013-11-08 | 2014-02-05 | 重庆天之道科技发展有限公司 | Tool hammer |
| CN103789597A (en) * | 2014-01-17 | 2014-05-14 | 西安交通大学 | High-damping shape memory alloy and preparation method for same |
| CN104630562A (en) * | 2015-01-16 | 2015-05-20 | 西安交通大学 | Application of high-damping shape memory alloy |
| CN205863864U (en) * | 2016-06-20 | 2017-01-04 | 国网山西省电力公司经济技术研究院 | A kind of integral prefabricated composite damper |
| CN106300197A (en) * | 2016-09-14 | 2017-01-04 | 西安交通大学 | A kind of damper |
-
2017
- 2017-11-06 CN CN201711075912.5A patent/CN107834481A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552038A (en) * | 2013-11-08 | 2014-02-05 | 重庆天之道科技发展有限公司 | Tool hammer |
| CN103789597A (en) * | 2014-01-17 | 2014-05-14 | 西安交通大学 | High-damping shape memory alloy and preparation method for same |
| CN104630562A (en) * | 2015-01-16 | 2015-05-20 | 西安交通大学 | Application of high-damping shape memory alloy |
| CN205863864U (en) * | 2016-06-20 | 2017-01-04 | 国网山西省电力公司经济技术研究院 | A kind of integral prefabricated composite damper |
| CN106300197A (en) * | 2016-09-14 | 2017-01-04 | 西安交通大学 | A kind of damper |
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Application publication date: 20180323 |
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