CN106567591B - A kind of multilayer tuned liquid damper, TLD, tuned sloshing damper - Google Patents
A kind of multilayer tuned liquid damper, TLD, tuned sloshing damper Download PDFInfo
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- CN106567591B CN106567591B CN201610956248.4A CN201610956248A CN106567591B CN 106567591 B CN106567591 B CN 106567591B CN 201610956248 A CN201610956248 A CN 201610956248A CN 106567591 B CN106567591 B CN 106567591B
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- damper
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- blade
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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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- 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
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention proposes a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper, is made of damper cavity unit, liquid, blade and connecting node.The Cavity unit of damper is annular structure, liquid is injected in cavity, the fixed several blades of inside cavity, upper end is hinged, and lower end is connect by connecting node with damper cavity unit.Multiple damper cavity units are vertically stacked together, and form an entirety, are placed on the top on offshore wind turbine spar formula floating basis.At sea the effects of surface wave under, pitching inclination angle is reduced by the shaking of liquid in each damper cavity unit, achievees the purpose that passive energy dissipation.
Description
Technical field
The present invention proposes a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper, by damper cavity unit, liquid, blade, connecting node
Composition.At sea the effects of surface wave under, pitching inclination angle is reduced by the shaking of liquid in each damper cavity, reaches energy consumption
The purpose of vibration damping belongs to civil structure (including skyscraper, tall and slender structure and bridge structure etc.) vibration control field.
Background technique
Interest sustainable growth to renewable energy promotes the continuous growth in wind turbine market.The whole world is mounted
Wind-power electricity generation capacity reached about 318GW in 2013.However, environment as such as noise and visual impact to landform
Problem hinders the wide-scale distribution of inland wind turbine.As a kind of alternative selection, Wind Power Plant at Sea is just obtained
Concern.As next-generation offshore wind turbine, it is a kind of by a buoyant foundation and it above turbine set at floatation type
Blower has received increasing concern, but still to solve there are many technical problem before commercialization.One of them is most
Important problem is that the floating blower blower more fixed than bottom is easier by external excitation, as wind, wave and ocean current.These
Excitation causes the translation and rotation of buoyant foundation, this has an adverse effect to the blower operating on top.
A kind of method is the extension based on pitching control strategy, pitching control strategy be initially be used to control blower by
Aerodynamic load, thus weaken its to floating platform movement influence.Larsen and Hanson(2007) propose a kind of controlling party
Method, this method have used frequency modulation method, therefore, to assure that obtained control frequency be lower than tower minimum critical frequency, this frequency with
The rigid motion of spar formula foundation structure is related.Namik and Stol(2010) have developed a kind of space control under periodic state
Device, it is generated asymmetric aerodynamic load using the pitching of single blade, so increases the righting moment of platform.Li
Et al. (2014) adjustable output feedback ontrol be applied to total pitching control and load cut down.The performance of this control is demonstrate,proved
It is bright to be better than gain scheduling PI control methods and disturbance suitable solution.However, these methods requirements based on pitching control are more complicated
Control strategy, inevitably require tradeoff power performance and load cut down between relationship.Another method is based on direct
Vibration control strategy is realized by using so-called bump leveller.Li et al. (2012) passes through a kind of offshore wind turbine of experimental study
Spherical bump leveller performance.The use of tuned mass damper, TMD is by Murtagh(2008) et al. and Si(2014) et al. propose.
Colwell and Basu uses a kind of pillar tuned liquid damper, TLD, tuned sloshing damper as bump leveller.However, all these researchs are devoted to
Weaken the movement of bottom fixing offshore wind turbine by using bump leveller.
Traditional Tuned Liquid can play certain effectiveness in vibration suppression, but this effect needs further enhance.
Therefore, now with Tuned Liquid (TLD) on the basis of improved, reached using the TLD of multilayer better
Effect.
Summary of the invention
In order to which the TLD effectiveness in vibration suppression for solving the problems, such as common is lesser, it is an object of the invention to propose a kind of tune of multilayer
Humorous liquid condenser.The device stacks multiple damper cavity units in vertical direction, reaches better effectiveness in vibration suppression.
To achieve the goals above, the present invention adopts the following technical scheme that.
A kind of multilayer tuned liquid damper, TLD, tuned sloshing damper is made of damper cavity unit 1, liquid 2, blade 3 and connecting node 4,
Wherein: damper cavity unit 1 is annular structure, and liquid 2 is injected in damper cavity unit 1, several blades 3 uniformly divide
In cloth damper cavity unit 1, the top and 1 top of damper cavity unit of each blade are hinged, bottom and damper cavity
Unit 1 is connected by connecting node 4；Several damper cavity units 1 are vertically stacked together, and formation one is whole
Body；It is placed on the top on offshore wind turbine spar formula floating basis.At sea the effects of surface wave under, pass through each damper cavity list
The shaking of liquid reduces pitching inclination angle in member, achievees the purpose that passive energy dissipation.
In the present invention, damper cavity unit 1 is made of 5mm-10mm stainless steel.
In the present invention, liquid 2 uses water, and liquid 2 accounts for a part of 1 volume of damper cavity unit (for total volume
30%-60%), the height of liquid 2 is determined according to desired natural frequency of damper.
In the present invention, the quantity that stacks of damper cavity unit 1 is 2 to 20, between adjacent damper cavity unit 1
Using welding or being bolted, can be determined according to the requirement for effectiveness in vibration suppression, it is desirable that higher, the damper cavity unit needed
More than 1.
In the present invention, connecting node 4 is cylindrical structure, and blade 3 is cube structure, and blade 3 is inserted into connecting node 4
Interior, blade 3 is surrounded by viscous damping unit 5, and the viscous damping unit 5 is located in connecting node 4, when liquid 2 shakes
Blade 3 can be pushed, so that viscous damping unit 5 be driven to consume energy.
Compared with prior art, advantages of the present invention is as follows:
(1) can be as needed, multiple damper cavity units are superimposed, to reach the effectiveness in vibration suppression of requirement.
(2) annular structure can the effectively vibration damping in any horizontal direction.
(3) connecting node under blade can play the effect of energy consumption.
Detailed description of the invention
Fig. 1 is a kind of front elevation view of multilayer tuned liquid damper, TLD, tuned sloshing damper of the present invention.
Fig. 2 is a kind of perspective view of one damper cavity unit of multilayer tuned liquid damper, TLD, tuned sloshing damper of the present invention.
Fig. 3 is a kind of top view of multilayer tuned liquid damper, TLD, tuned sloshing damper of the present invention.
Fig. 4 is a kind of top view of multilayer tuned liquid damper, TLD, tuned sloshing damper connecting node of the present invention.
Figure label: 1 is damper cavity unit, and 2 be liquid, and 3 be blade, and 4 be connecting node, and 5 be viscous damping list
Member.
Specific embodiment
Below with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 specific embodiment that the present invention will be described in detail.
Embodiment 1: a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper, including damper cavity unit 1, liquid 2, blade 3, connection section
Point 4.Damper cavity unit 1 is annular structure, injects liquid 2 in cavity, and upper end is hinged, and lower end is by connecting node 4 and resistance
The connection of Buddhist nun's device Cavity unit.
Damper cavity unit 1 is made of 5mm-10mm stainless steel, and internal liquid 2 uses water.Liquid 2 is full of damper
A part (for the 30%-60% of total volume) of 1 volume of Cavity unit, the height of liquid 2 is according to desired natural frequency of damper
It determines.
The quantity that stacks of damper cavity unit 1 is 2 to 20, and welding is used between each cavity or is bolted.It can root
It is determined according to the requirement for effectiveness in vibration suppression, it is desirable that higher, the Cavity unit needed is more.
There are four viscous damping unit 5 in connecting node 4, liquid 2 can push blade 3 to drive viscous damping unit when shaking
5 energy consumptions.
Multiple damper cavity units 1 are vertically stacked together, and form an entirety, are placed on offshore wind turbine
The top on spar formula floating basis.At sea the effects of surface wave under, by the shaking of liquid in each damper cavity unit come
Reduce pitching inclination angle, achievees the purpose that passive energy dissipation.
Claims (4)
1. a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper, by damper cavity unit (1), liquid (2), blade (3) and connecting node (4)
Composition, it is characterised in that: damper cavity unit (1) is annular structure, injects liquid (2) in damper cavity unit (1),
Several blades (3) are uniformly distributed in damper cavity unit (1), and the top and damper cavity unit (1) of each blade are pushed up
Portion is hinged, and bottom is connect with damper cavity unit (1) by connecting node (4)；Several damper cavity units (1) are along vertical
Histogram forms an entirety to being stacked together；It is placed on the top on offshore wind turbine spar formula floating basis, at sea surface wave etc.
Under effect, pitching inclination angle is reduced by the shaking of liquid in each damper cavity unit, achievees the purpose that passive energy dissipation；Even
Connecing node (4) is cylindrical structure, and blade (3) is cube structure, and blade (3) is inserted into connecting node (4), blade (3)
It is surrounded by viscous damping unit (5), the viscous damping unit (5) is located in connecting node (4), and liquid (2) can when shaking
It pushes blade (3), so that viscous damping unit (5) be driven to consume energy.
2. a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper according to claim 1, it is characterised in that: damper cavity unit (1)
It is made of 5mm-10mm stainless steel.
3. a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper according to claim 1, it is characterised in that: liquid (2) uses water, liquid
(2) 30%-60% of damper cavity unit (1) total volume is accounted for, the height of liquid (2) is true according to desired natural frequency of damper
It is fixed.
4. a kind of multilayer tuned liquid damper, TLD, tuned sloshing damper according to claim 1, it is characterised in that: damper cavity unit (1)
The quantity that stacks be 2 to 20, using welding or be bolted between adjacent damper cavity unit (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956248.4A CN106567591B (en) | 2016-10-28 | 2016-10-28 | A kind of multilayer tuned liquid damper, TLD, tuned sloshing damper |
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| CN201610956248.4A CN106567591B (en) | 2016-10-28 | 2016-10-28 | A kind of multilayer tuned liquid damper, TLD, tuned sloshing damper |
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| Publication Number | Publication Date |
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| CN106567591A CN106567591A (en) | 2017-04-19 |
| CN106567591B true CN106567591B (en) | 2019-03-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373994B (en) * | 2019-08-22 | 2020-11-24 | 台州佳沃科技有限公司 | Assembled pier with damping function |
| CN110439348B (en) * | 2019-08-26 | 2020-10-02 | 上海电气风电集团股份有限公司 | Composite liquid damper and use method thereof |
| CN112443616B (en) * | 2019-09-02 | 2023-04-14 | 新疆金风科技股份有限公司 | Damper, damping device and wind generating set |
| CN111173683A (en) * | 2020-01-03 | 2020-05-19 | 国电联合动力技术有限公司 | Flexible tower wind damper control device and method for wind turbine generator and wind turbine generator |
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| CN105133743A (en) * | 2015-09-24 | 2015-12-09 | 同济大学 | Nonlinear tunable mass and liquid damper |
| CN105507446A (en) * | 2016-01-25 | 2016-04-20 | 河北建筑工程学院 | Tuned liquid damper |
| CN105569206A (en) * | 2016-02-26 | 2016-05-11 | 苏州云白环境设备制造有限公司 | Annular liquid damper |
| CN105672514A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Vortex vibration energy consumption type tuned liquid damper |
| CN205475804U (en) * | 2016-03-10 | 2016-08-17 | 苏州科技学院 | Whirlpool power consumption formula tuned liquid damper that shakes |
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- 2016-10-28 CN CN201610956248.4A patent/CN106567591B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103993774A (en) * | 2014-05-21 | 2014-08-20 | 苏州云白环境设备制造有限公司 | Inner and outer barrel self-erected self-adaptive shake resistance steel chimney |
| CN105133743A (en) * | 2015-09-24 | 2015-12-09 | 同济大学 | Nonlinear tunable mass and liquid damper |
| CN105507446A (en) * | 2016-01-25 | 2016-04-20 | 河北建筑工程学院 | Tuned liquid damper |
| CN105569206A (en) * | 2016-02-26 | 2016-05-11 | 苏州云白环境设备制造有限公司 | Annular liquid damper |
| CN105672514A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Vortex vibration energy consumption type tuned liquid damper |
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