WO2009043547A1 - Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion - Google Patents
Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion Download PDFInfo
- Publication number
- WO2009043547A1 WO2009043547A1 PCT/EP2008/008207 EP2008008207W WO2009043547A1 WO 2009043547 A1 WO2009043547 A1 WO 2009043547A1 EP 2008008207 W EP2008008207 W EP 2008008207W WO 2009043547 A1 WO2009043547 A1 WO 2009043547A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- air
- liquid damper
- vertical
- damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/1034—Vibration-dampers; Shock-absorbers using inertia effect of movement of a liquid
Definitions
- Fluid damper for reducing vertical and / or horizontal vibrations on a construction or machine construction
- the invention relates to a liquid damper for the reduction of vertical and / or horizontal vibrations on a construction or machine construction with at least two partially filled with liquid chambers communicating with each other at their lower ends, wherein at least one chamber is hermetically sealed at its upper end, so over the liquid a closed air space is formed and at least one other chamber is at least partially open at its upper end.
- Liquid damper consisting of a partially filled with liquid U-shaped pipe system.
- First theoretical investigations of the liquid damper were made for horizontal and vertical vibrations by Sun et al. (Sun, LM, Fujino, Y., Koga, K., (1995).
- Tuned liquid damper for suppressing vertical vibration. In: Proc. 45th JSCE annual meeting, Vol.1, p. 978-979 (in Japanese)).
- the document D1 describes a device for vibration damping, with a U-shaped tank, which is filled in the lower area with a liquid and above the liquid in each case only a single gas space (left or right side) has, the pressure of energy input on one / Outlet valves is controlled.
- the document D2 describes a liquid damper with two chambers, both of which are gas-tightly sealed from the environment or of which at least one is symmetrical to the vertical axis of the liquid damper, preferably symmetrical to the vertical axis of the first chamber.
- This document also discloses an adaptation of the desired eradication behavior by controlled supply and removal of gas in at least one of the gas chambers, which, however, makes practical problems from the side of the energy requirement for the control and for the supply and removal of gas.
- Document D3 describes a purely passive system, each with a located above the left and right side liquid surface air chamber. From the document D3 is further known a chamber in which at the upwardly open end a variable in its passage area outlet is arranged. _
- the document D4 also describes a purely passive system, where the chambers arranged above the liquid are sealed upwards via a valve.
- the valves lead directly to the outside and presumably serve to equalize the pressure in the event of temperature changes.
- Object of the present invention is to provide a liquid damper, the low energy consumption an unproblematic adjusting the
- the object is achieved in that only one of the two chambers is hermetically sealed in the aforementioned liquid damper and the second chamber has an air outlet opening towards the top.
- the closed air space is subdivided into at least two air part spaces, wherein an air part space is directly above the liquid and one or more air part spaces are connected via openings to the air part space directly above the liquid or with the respective adjacent air part space, these openings are sealingly closed independently of each other ,
- the air part spaces of the tightly sealed chamber in series one above the other or parallel can be designed as a rectangular or round tube chambers.
- the total volume of the immediately above the liquid located air compartment and communicating with this air part spaces can be changed and thus the natural frequency of the liquid damper can be changed.
- the present invention operates without the controlled supply and removal of gas.
- the absorber frequency is set with substantially less energy expenditure over the suitably selected size of the total volume above the liquid (sum of the parallel or series-connected open air chambers).
- the optimal absorber damping is at set the present invention on a suitable choice of adaptable in its passage area air outlet opening.
- Into the openings are preferably via a controller, e.g. installed via a microcontroller controllable valves.
- the chamber with the open-top end has a variable in its passage area outlet, which is preferably a controllable via a controller, such as the above-mentioned microcontroller Dossei worn.
- a controller such as the above-mentioned microcontroller Dossei worn.
- liquids with a density p> ⁇ 000kg / m 3 are advantageous.
- the natural frequency of the construction and machine design is calculated under an impending load, which determines optimum natural frequency of the liquid damper and the total volume of the immediately above the liquid located air compartment and communicating with this air part spaces to that resulting from the optimum natural frequency optimally approximates optimum volume by opening and / or closing openings between the air part spaces, preferably via valves controlled by a control.
- the optimum damping under an impending load is calculated and the area of exit of the at least partially open chamber is set for optimal damping, preferably via a throttle controlled by a controller.
- the data for adjusting the area of the exit to the optimal damping for different loads can be determined experimentally beforehand for each liquid damper.
- the weight of the loading elements, in particular via a dynamic balance is advantageously determined.
- FIG. 1 shows a liquid damper for vertical vibrations
- Figure 2 shows a liquid damper for horizontal vibrations
- Figure 3 shows a liquid damper for horizontal and vertical vibrations
- Figures 4 and 5 shows two possible embodiments of the hermetically sealed end of liquid damper according to the invention
- FIGS. 6 to 9 show cross sections through possible embodiments of the hermetically sealed end of liquid damper according to the invention
- FIG. 10 shows the cross section through a bridge construction with liquid samplers mounted therein.
- the design of the liquid damper for damping horizontal and / or vertical vibrations is characterized by the controlled via a microcontroller optimal natural frequency and attenuation adjustment.
- the liquid damper consists of a partially filled with liquid of density p pipe system with the cross section A of any shape.
- the following three types of fluid damper are distinguished in the description of the invention:
- the vertical liquid damper is used for damping of preferably vertical structural vibrations.
- the partially filled with liquid 3 pipe system consists of a hermetically sealed tube part 1, wherein the air space with the volume VQ above the liquid level in air part spaces with partial volumes VQ J to V Q "is divided.
- the overpressure P ] ⁇ Po + 2 / CgHo is impressed, where p 0 is the atmospheric pressure and 2Ho is the measure to which the liquid level 4 in the closed tube part 1 opposite the liquid level 5 is offset in the open tube part 2.
- the temporal change of the overpressure is monitored by means of a pressure sensor 6.
- the second pipe part 2 of the vertical liquid sampler is partially open.
- the liquid level 5 is offset by the dimension 2Ho with respect to the closed pipe part 1 in the vertical direction.
- Above the liquid level 5 there is an air volume which has impressed the natural atmospheric pressure p 0 .
- the air can flow upwards via a variable throttle device.
- the microcontroller 8 of the vertical liquid damper is coupled to a dynamic balance 10 and / or to any system for weight determination (eg Weigh-In-Motion system).
- a dynamic balance 10 e.g Weigh-In-Motion system
- any system for weight determination eg Weigh-In-Motion system.
- the weight-in-motion System is arranged, for example, in front of bridges and allows the determination of axle loads and thus the precalculation of the changed bridge natural frequency.
- the determination of the current weight on the dynamic scale 10 and passing the information to the microcontroller 8 allows the calculation of the optimum natural frequency and damping of the liquid damper.
- the optimum natural frequency and damping is then set via a suitable choice of the open air compartment number and the opening width of the throttle device 9.
- the linear natural frequency of the vertical liquid absorber is obtained by applying the transient Bernoulli equation in the moving frame along a relative incompressible streamline.
- H Q PQ / pg denote the liquid column equivalent to the atmospheric pressure P Q and 1 ⁇ n ⁇ 1.4 the exponent of the linearized polytropic gas compression.
- the total length of the liquid thread and the angle of inclination of the vertical pipe parts are denoted by L and ⁇ .
- the notional height of the air spring H a VV Q1 IA adjusting in the hermetically sealed tube part is the main influencing parameter on the natural frequency of the vertical liquid sampler.
- the active control of the natural frequency is achieved by activating an optimum number of series or parallel air sections through open valves 7.
- the second essential design parameter of the vertical fluid damper is fluid damping. This is defined by the linearized Lehr ' s attenuation measure ⁇ A.
- the active control of the liquid damping to the optimum value is also carried out with the aid of the microcontroller 8 via a throttle device 9.
- the size of the throttle opening associated with the linearized damping amount ⁇ A can be determined experimentally beforehand for each liquid damper.
- the horizontal liquid damper is used for damping preferably horizontal structural vibrations.
- the partially filled with liquid 3 pipe system consists of a hermetically sealed tube part 1, wherein the air space with the volume VQ above the liquid level in air part spaces with the sub-volumes
- Foi D ' s is subdivided by.
- the natural atmospheric pressure p 0 is imprinted on both sides, ie it does not act
- the pressure sensor 6 mounted inside the hermetically sealed pipe part 1 supplies the value of the pressure change at the onset of the liquid vibrations.
- the remaining details for the execution and control of the horizontal liquid damper are analogous to the vertical liquid damper.
- the largest possible horizontal length B in static rest position is therefore advantageous.
- the combined vertical and horizontal fluid damper is used to dampen vertical and / or horizontal structural vibrations.
- this is a combination of the two o.a. Fluid damper, where the geometry is chosen so that the best possible damping of vertical and / or horizontal vibrations is possible.
- the linear natural frequency and design is analogous to the vertical liquid damper, wherein the horizontal pipe part is extended.
- the optimal tuning of the liquid sampler is analogous to the conventional Tilger mass-spring damper, as described by Reiterer (Reiterer, M., Ziegler, F., (2006).) Control of Pedestrian-Induced Vibrations of Long Span Bridges, Journal of Structural Control & Health Monitoring, John Wiley & Sons, Ltd. ISSN 1545-2255, Vol 13, No. 6, pp. 1003-1027).
- the optimal design parameters for the mass-spring-damper absorber were first presented by Den Hartog (Den Hartog, JP, (1936): Mechanical Vibrations, published by Julius Springer, Berlin), f s * and M * denote the linear natural frequency and the modal mass of the structure,
- the side members of the bridge consist of I-profiles with a height of 1, 2m which are connected to each other by cross-members.
- the total height of the air spring in the hermetically sealed tube part is thus determined with the maximum value of 0.32m and the further subdivision of the air chambers is measured in stages 0.23m and 0.18m from the liquid surface mirror in static rest position.
- the associated optimum natural frequency of the liquid damper can thus be set via activation of the corresponding air volume.
- the optimum liquid damping is set via the variable throttle device on the open pipe section. The required size of the opening is determined experimentally.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Fluid-Damping Devices (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
Claims
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES08802658T ES2386041T3 (es) | 2007-09-27 | 2008-09-26 | Amortiguador de líquido para la reducción de oscilaciones verticales y/u horizontales en una estructura de edificio o de máquina |
| JP2010526213A JP2010540854A (ja) | 2007-09-27 | 2008-09-26 | 液体式制振装置 |
| HRP20120520AT HRP20120520T1 (hr) | 2007-09-27 | 2008-09-26 | Tekući amortizer za smanjenje vertikalnih i/ili horizontalnih vibracija u građevinskoj ili mašinskoj konstrukciji |
| US12/733,827 US20100200348A1 (en) | 2007-09-27 | 2008-09-26 | Liquid damper for reducing vertical and/or horizontal vibrations in a building or machine structure |
| CA2700298A CA2700298C (en) | 2007-09-27 | 2008-09-26 | Liquid damper for reducing vertical and/or horizontal vibrations in a building or machine structure |
| AT08802658T ATE551553T1 (de) | 2007-09-27 | 2008-09-26 | Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion |
| AU2008306161A AU2008306161B2 (en) | 2007-09-27 | 2008-09-26 | Liquid damper for reducing vertical and/or horizontal vibrations in a building or machine structure |
| NZ584143A NZ584143A (en) | 2007-09-27 | 2008-09-26 | Liquid damper for reducing vertical and/or horizontal vibrations in a building or machine structure |
| RU2010117257/11A RU2474738C2 (ru) | 2007-09-27 | 2008-09-26 | Гидравлический демпфер для уменьшения вертикальных и/или горизонтальных колебаний конструкции сооружения или механизма |
| EP08802658A EP2193285B1 (de) | 2007-09-27 | 2008-09-26 | Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion |
| PL08802658T PL2193285T3 (pl) | 2007-09-27 | 2008-09-26 | Amortyzator cieczowy do redukcji drgań pionowych i/lub poziomych w konstrukcji budowlanej albo maszynowej |
| SI200830678T SI2193285T1 (sl) | 2007-09-27 | 2008-09-26 | Tekočinski blažilnik za zmanjševanje navpičnih in/ali vodoravnih vibracij na gradbeni ali strojni konstrukciji |
| CN2008801089208A CN101932847B (zh) | 2007-09-27 | 2008-09-26 | 用于减小在建筑结构或机器结构上的竖直方向的和/或水平方向的振动的液体减振器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0153307A AT505862B1 (de) | 2007-09-27 | 2007-09-27 | Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion |
| ATA1533/2007 | 2007-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009043547A1 true WO2009043547A1 (de) | 2009-04-09 |
Family
ID=40104704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/008207 Ceased WO2009043547A1 (de) | 2007-09-27 | 2008-09-26 | Flüssigkeitstilger zur reduktion von vertikalen und/oder horizontalen schwingungen an einer bau- oder maschinenkonstruktion |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US20100200348A1 (de) |
| EP (1) | EP2193285B1 (de) |
| JP (1) | JP2010540854A (de) |
| KR (1) | KR20100090764A (de) |
| CN (1) | CN101932847B (de) |
| AT (2) | AT505862B1 (de) |
| AU (1) | AU2008306161B2 (de) |
| CA (1) | CA2700298C (de) |
| ES (1) | ES2386041T3 (de) |
| HR (1) | HRP20120520T1 (de) |
| NZ (1) | NZ584143A (de) |
| PL (1) | PL2193285T3 (de) |
| RU (1) | RU2474738C2 (de) |
| SI (1) | SI2193285T1 (de) |
| WO (1) | WO2009043547A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148647A1 (fr) * | 2016-03-02 | 2017-09-08 | IFP Energies Nouvelles | Systeme de stabilisation, en particulier pour un support flottant, avec au moins trois reserves de liquide reliees entre elles |
| FR3048408A1 (fr) * | 2016-03-02 | 2017-09-08 | Ifp Energies Now | Systeme de stabilisation, en particulier pour un support flottant, avec plusieurs dispositifs d'amortissement ayant une forme de u |
| US11993951B2 (en) * | 2017-02-28 | 2024-05-28 | Hummingbird Kinetics LLC | Tuned liquid damper with a membrane liquid-gas interface |
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| CN102493568A (zh) * | 2011-11-28 | 2012-06-13 | 武汉大学 | 一种环形可调液阻尼器 |
| CN102795073B (zh) * | 2012-05-28 | 2014-08-20 | 江苏大学 | 一种半主动空气悬架动控制系统的设计方法 |
| DE102013010595A1 (de) * | 2013-06-26 | 2014-12-31 | Rheinisch-Westfälische Technische Hochschule Aachen | Flüssigkeitssäulendämpfungssystem |
| DE102015000789A1 (de) * | 2015-01-26 | 2016-07-28 | Senvion Gmbh | Schwingungsdämpfer für eine Windenergieanlage, Verfahren zum Einbau eines Schwingungsdämpfers in einen Turm einer Windenergieanlage und Windenergieanlage |
| CN106703246A (zh) * | 2016-12-16 | 2017-05-24 | 中铁二十四局集团安徽工程有限公司 | 风力发电塔组合盆式混合调谐阻尼器 |
| CN108488024A (zh) * | 2018-04-23 | 2018-09-04 | 天津大学 | 一种用于振荡水柱阻尼器的发电装置 |
| US11619277B2 (en) * | 2018-05-17 | 2023-04-04 | United States Of America As Represented By The Administrator Of Nasa | Fluid-filled frequency-tunable vibration damper |
| CN111237133B (zh) * | 2020-01-13 | 2021-04-23 | 上海电气风电集团股份有限公司 | 一种可自动调节阻尼属性的风力发电机组塔架 |
| JP7473912B2 (ja) * | 2020-06-01 | 2024-04-24 | 株式会社Ihi | 浮体式免震システム |
| CN111636293B (zh) * | 2020-07-09 | 2024-12-31 | 同济大学 | 一种分布式液位平衡型竖向阻尼器 |
| DE102021107849A1 (de) | 2021-03-29 | 2022-09-29 | Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Körperschaft des öffentlichen Rechts | Breitband-Flüssigkeitssäulendämpfungssystem und Verfahren zur Abstimmung |
| CN114542658B (zh) * | 2022-03-04 | 2024-03-12 | 西安热工研究院有限公司 | 一种基于循环水泵的核电站减振系统 |
| CN119641851A (zh) * | 2024-12-17 | 2025-03-18 | 珠海格力电器股份有限公司 | 减振结构及制冷设备 |
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-
2008
- 2008-09-26 SI SI200830678T patent/SI2193285T1/sl unknown
- 2008-09-26 NZ NZ584143A patent/NZ584143A/en unknown
- 2008-09-26 RU RU2010117257/11A patent/RU2474738C2/ru active
- 2008-09-26 EP EP08802658A patent/EP2193285B1/de not_active Not-in-force
- 2008-09-26 CN CN2008801089208A patent/CN101932847B/zh not_active Expired - Fee Related
- 2008-09-26 PL PL08802658T patent/PL2193285T3/pl unknown
- 2008-09-26 HR HRP20120520AT patent/HRP20120520T1/hr unknown
- 2008-09-26 US US12/733,827 patent/US20100200348A1/en not_active Abandoned
- 2008-09-26 AT AT08802658T patent/ATE551553T1/de active
- 2008-09-26 CA CA2700298A patent/CA2700298C/en not_active Expired - Fee Related
- 2008-09-26 WO PCT/EP2008/008207 patent/WO2009043547A1/de not_active Ceased
- 2008-09-26 ES ES08802658T patent/ES2386041T3/es active Active
- 2008-09-26 JP JP2010526213A patent/JP2010540854A/ja active Pending
- 2008-09-26 AU AU2008306161A patent/AU2008306161B2/en not_active Ceased
- 2008-09-26 KR KR1020107009251A patent/KR20100090764A/ko not_active Ceased
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| JPH02278033A (ja) * | 1989-04-18 | 1990-11-14 | Mitsubishi Heavy Ind Ltd | 防振タンク |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148647A1 (fr) * | 2016-03-02 | 2017-09-08 | IFP Energies Nouvelles | Systeme de stabilisation, en particulier pour un support flottant, avec au moins trois reserves de liquide reliees entre elles |
| FR3048408A1 (fr) * | 2016-03-02 | 2017-09-08 | Ifp Energies Now | Systeme de stabilisation, en particulier pour un support flottant, avec plusieurs dispositifs d'amortissement ayant une forme de u |
| WO2017148648A1 (fr) * | 2016-03-02 | 2017-09-08 | IFP Energies Nouvelles | Systeme de stabilisation, en particulier pour un support flottant, avec plusieurs dispositifs d'amortissement ayant une forme de u |
| FR3048409A1 (fr) * | 2016-03-02 | 2017-09-08 | Ifp Energies Now | Systeme de stabilisation, en particulier pour un support flottant, avec au moins trois reserves de liquide reliees entre elles |
| US10683065B2 (en) | 2016-03-02 | 2020-06-16 | IFP Energies Nouvelles | Stabilization system, in particular for a floating support, comprising at least three interconnected liquid reserves |
| US11267543B2 (en) | 2016-03-02 | 2022-03-08 | IFP Energies Nouvelles | Stabilisation system, in particular for a floating support, comprising multiple u-shaped damping devices |
| US11993951B2 (en) * | 2017-02-28 | 2024-05-28 | Hummingbird Kinetics LLC | Tuned liquid damper with a membrane liquid-gas interface |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE551553T1 (de) | 2012-04-15 |
| CA2700298C (en) | 2012-07-10 |
| NZ584143A (en) | 2011-12-22 |
| EP2193285B1 (de) | 2012-03-28 |
| SI2193285T1 (sl) | 2012-09-28 |
| JP2010540854A (ja) | 2010-12-24 |
| PL2193285T3 (pl) | 2013-06-28 |
| AT505862B1 (de) | 2010-01-15 |
| CN101932847B (zh) | 2013-07-24 |
| ES2386041T3 (es) | 2012-08-07 |
| AU2008306161A1 (en) | 2009-04-09 |
| RU2474738C2 (ru) | 2013-02-10 |
| CN101932847A (zh) | 2010-12-29 |
| KR20100090764A (ko) | 2010-08-17 |
| US20100200348A1 (en) | 2010-08-12 |
| EP2193285A1 (de) | 2010-06-09 |
| AU2008306161B2 (en) | 2012-02-16 |
| AT505862A1 (de) | 2009-04-15 |
| HRP20120520T1 (hr) | 2012-08-31 |
| CA2700298A1 (en) | 2009-04-09 |
| RU2010117257A (ru) | 2011-11-10 |
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