EP1715112A2 - Dämpfungseinheit mit Eigenschwingung - Google Patents

Dämpfungseinheit mit Eigenschwingung Download PDF

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Publication number
EP1715112A2
EP1715112A2 EP05103635A EP05103635A EP1715112A2 EP 1715112 A2 EP1715112 A2 EP 1715112A2 EP 05103635 A EP05103635 A EP 05103635A EP 05103635 A EP05103635 A EP 05103635A EP 1715112 A2 EP1715112 A2 EP 1715112A2
Authority
EP
European Patent Office
Prior art keywords
eigenfrequency
mass member
dampering
oscillation
unit
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.)
Withdrawn
Application number
EP05103635A
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English (en)
French (fr)
Other versions
EP1715112A3 (de
Inventor
Sören Find
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
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Filing date
Publication date
Application filed by SKF AB filed Critical SKF AB
Priority to EP05103635A priority Critical patent/EP1715112A3/de
Priority to PCT/SE2006/000512 priority patent/WO2006118525A1/en
Publication of EP1715112A2 publication Critical patent/EP1715112A2/de
Publication of EP1715112A3 publication Critical patent/EP1715112A3/de
Withdrawn legal-status Critical Current

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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
    • E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
    • 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

Definitions

  • the present invention relates to an eigenfrequency oscillation dampering unit.
  • a structural bearing unit comprising a pair of spaced members that have opposed bearing surfaces bearing surfaces, a movable pad element disposed between and coacting with the bearing surfaces of the members whereby the members may move parallel or angularly relative to each other when subjected to certain bearing load.
  • This bearing unit deals with how to accommodate movement between structural members, such as a bridge.
  • the invention disclosed in the document above does mention dampering an oscillation at an eigenfrequency.
  • a rocker-sliding bearing for bridges or similar structures and a method of lining the concave top side surface of a curved base plate of a rocker-slider bearing.
  • the rocker-slider bearing includes a flat top plate, an intermediate plate having a flat top side and a convex curved underside surface, a bedplate and a base plate having a correspondingly concave curved top side surface in turn secured to the bedplate, the curved surface on the top of the base plate including a lining of corrosion-resistant material and the curved surface of the intermediate plate including a lining with a low coefficient of friction relative to the highly corrosion-resistant material on the curved surface of the base plate wherein the lining on the curved surface of the base plate includes a preformed curved disc positioned on the base plate and secured to the concave top side thereof.
  • dampering an oscillation at an eigenfrequency does mention dampering an oscillation at an eigenfrequency.
  • a three-dimensional guiding apparatus capable of bearing large loads and suitable for use in a vibration isolating structure for buildings.
  • the three-dimensional guiding apparatus comprises a base, a first curved guiding apparatus disposed above the base and having an arcuate track, a second curved guiding apparatus disposed above the first curved guiding apparatus and having a plane of movement along an arcuate track which crosses the plane of movement of the first curved guiding apparatus, and an intermediate member positioned between the first curved guiding apparatus and the second curved guiding apparatus and interconnecting the first curved guiding apparatus and the second curved guiding apparatus.
  • Each of the first and second curved guiding apparatuses has a track rail, a bearing block, lids, and a number of balls.
  • the invention disclosed in the document above does mention dampering an oscillation at an eigenfrequency. Also, in order for the three-dimensional guiding apparatus to isolate a vibration, a movement along two arcuate tracks may be required.
  • the function of the invention disclosed in the document is to isolate a vibration by operating as an intermediate feature to decrease the vibration in the structure above the invention disclosed in the document.
  • a bi-directional sliding pendulum seismic isolation system for reducing seismic force acting on a structure by sliding pendulum movements.
  • Each system comprises a lower sliding plate forming a sliding path in a first direction, an upper sliding plate forming a sliding path in a second direction, and a sliding assembly for reducing the seismic force of the structure by performing a pendulum motion by sliding along the lower and upper sliding plates.
  • a movement along two arcuate tracks may be required.
  • the purpose of the present invention is to solve the problem of dampering an oscillation at an eigenfrequency of a tall construction.
  • This purpose is achieved by an eigenfrequency oscillation dampering unit that comprises a support structure placed under a mass member and that receives the mass member.
  • the support structure presents a first spherical feature.
  • the mass member presents a second spherical feature that matches the first spherical feature.
  • the relation f 1/T relates frequency and period, where f is an eigenfrequency of the tall construction.
  • the first and second spherical features are either identical or at least essentially identical.
  • the first spherical feature and the second spherical feature present an essentially common center point. This means that when viewing each one of the spherical features, it constitutes a part of a sphere.
  • the center points of the spheres of the first and second spherical features are essentially the same.
  • a contact means is on one of the mass member and the support structure, and between the first spherical feature and the second spherical feature, allowing the mass member to move in relation to the support structure for dampering an eigenfrequency oscillation.
  • the contact means may be constituted by one of a sliding means and a ball housing arrangement.
  • An effect of the present invention is that there is no need to actually use an actual pendulum to damper an eigenfrequency oscillation since this is, according to the present invention, accomplished by the mass member moving in relation to the support structure.
  • the movement of the first and second spherical features presents a function similar to a pendulum.
  • An advantage is that the dampering unit is significantly more compact.
  • the moving at least partly balances out the eigenfrequency oscillation.
  • the mass member moves in relation to the support structure.
  • the contact means in combination with the first and second spherical features allow similar moving capabilities regardless of direction, even including rotational moving.
  • the mass member is located at an upper portion of the tall construction.
  • At least one of the first spherical feature and the second spherical feature is constituted by a plurality of spherical partial surface elements. This means that the elements may be perceived as parts of a single sphere.
  • the mass member is unloaded from above, e.g. it does not support a part of a bridge or a building.
  • the contact means provides a friction coefficient in the interval of 0.03 to 0.07.
  • the contact means is constituted by a plurality of contact arrangements located between the spherical partial surface elements of the first and second spherical features.
  • a mass member movement limiting means is arranged on the support structure. This means limits the movement of the mass member in relation to the support structure.
  • the support structure presents cut outs to decrease its mass and to save material.
  • the mass member is a ring. This offers the advantage that the hole through the ring may be used for receiving a mechanical object.
  • a ring presents the advantage that dampering unit is space effective since it may be designed to quite low.
  • the mass member is a disk.
  • a disk presents the advantage that dampering unit will be space effective. It should be noted that a ring may be considered a disk provided with a hole.
  • the mass member comprises iron. In an embodiment, the mass member is constituted by a container comprising a fluid.
  • the mass member is made of cement or concrete.
  • the mass member is additionally provided in the tall construction, i.e. the mass member is intended to solely damper eigenfrequency oscillations. Also, the mass member is unloaded in the sense that it is not an original part of the tall construction.
  • the mass member is constituted by a plurality of smaller mass members.
  • the mass member is created. This leads to an easier mounting of the mass member since the need of transporting a high mass is more difficult than transporting a plurality of smaller masses. Also, the advantage that the mass of the mass member becomes a variable in e.g. installation, or calibrating since one or more of the smaller mass members may be added or removed.
  • At least one of the first and second spherical features presents at least one of an anticorrosion coating and a lubricant.
  • dampering units to an arrangement comprising a plurality of eigenfrequency oscillation dampering units according to the present invention.
  • One or more units comprised by the plurality may present different radii.
  • the eigenfrequency oscillation dampering units may be arranged at the same height of the tall construction.
  • the eigenfrequency oscillation dampering units may be arranged at different heights of the tall construction.
  • an embodiment of an eigenfrequency oscillation dampering unit 1 for a tall construction is given. It comprises a support structure 3 under a mass member 5 and the support structure 3 receives the mass member 5.
  • the support structure 3 presents a first spherical feature 7.
  • the mass member 5 presents a second spherical feature 9 matching the first spherical feature 7.
  • the first and second spherical features 7, 9 present a radius, R, corresponding to a length of a mathematical pendulum, wherein the radius is related to an eigenfrequency of the tall construction.
  • the first spherical feature 7 and the second spherical feature 9 present an essentially common center point.
  • the common center point is indicated with P.
  • a contact means here a sliding means 11, is arranged on one of the mass member 5 and the support structure 3 and between the first spherical feature 7 and the second spherical feature 9, allowing the mass member 5 to move in relation to the support structure 3 for dampering an eigenfrequency oscillation.
  • the sliding means presents a friction coefficient in the interval of 0.03 to 0.07.
  • a mass member movement limiting means 13 here in the form of a bumper, is arranged on the support structure 3.
  • the mass member 5 is a ring.
  • FIG 3 an embodiment of a dampering unit is disclosed.
  • the support structure 3 receives the mass member 5.
  • the mass member 5 and the support structure 3 present spherical features, that essentially matches. However, a difference between this embodiment and the above embodiment is the arrangement of the spherical features in relation to the tall construction.
  • the point P is below the mass dampering unit 1.
  • the mass member slides on sliding means 11.
  • Two mass member movement limiting means 13 are also present in Figure 3 in the form of taps, directed downwards, that in case the mass member is in the risk sliding too far, the tap will come into contact with the support structure 3 and accordingly limit the movement of the mass member 5.
  • the mass member 5 is additionally provided in the tall construction, i.e. the unit has been provided there with the sole purpose of dampering eigenfrequeny oscillations.
  • the eigenfrequency of the tall building is 0,2 Hz, and the frequency for the pendulum shall be the same.
  • T 2 pi ( L / g ) 1 / 2

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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)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP05103635A 2005-04-21 2005-05-02 Dämpfungseinheit mit Eigenschwingung Withdrawn EP1715112A3 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05103635A EP1715112A3 (de) 2005-04-21 2005-05-02 Dämpfungseinheit mit Eigenschwingung
PCT/SE2006/000512 WO2006118525A1 (en) 2005-05-02 2006-04-27 Eigenfrequency oscillation dampering unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05103223 2005-04-21
EP05103635A EP1715112A3 (de) 2005-04-21 2005-05-02 Dämpfungseinheit mit Eigenschwingung

Publications (2)

Publication Number Publication Date
EP1715112A2 true EP1715112A2 (de) 2006-10-25
EP1715112A3 EP1715112A3 (de) 2006-11-02

Family

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EP05103635A Withdrawn EP1715112A3 (de) 2005-04-21 2005-05-02 Dämpfungseinheit mit Eigenschwingung

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EP (1) EP1715112A3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071066A1 (en) * 2005-12-22 2007-06-28 Motioneering Inc. Long period pendulum arrangement
WO2009075003A1 (en) * 2007-12-13 2009-06-18 Alga S.P.A. Tuned mass damper
CN103243643A (zh) * 2013-05-20 2013-08-14 成都市新筑路桥机械股份有限公司 一种桥梁水平弹性阻尼装置
CN105275107A (zh) * 2014-05-27 2016-01-27 段永定 消能减振系统
CN109881809A (zh) * 2019-03-21 2019-06-14 大连民族大学 一种复合滚动隔震支座
DE102018218999A1 (de) * 2018-11-07 2020-05-07 Maurer Engineering Gmbh Massedämpfer zur Dämpfung von Schwingungen eines Bauwerks, Bauwerk mit einem solchen Massedämpfer und Verfahren zur Einstellung der natürlichen Frequenz eines Massedämpfers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329472A (en) 1963-08-13 1967-07-04 Ampep Ind Products Ltd Bearing units
US4320549A (en) 1978-07-04 1982-03-23 Glacier Gmbh-Deva Werke Rocker-sliding bearing assembly and a method of lining the assembly
US6085473A (en) 1997-02-05 2000-07-11 Thk Co., Ltd. Three-dimensional guiding apparatus
US6682849B2 (en) 1997-12-23 2004-01-27 Sri International Ion battery using high aspect ratio electrodes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414706A1 (de) * 1984-04-18 1985-10-31 Stock GmbH, 7500 Karlsruhe Schwingungsdaempfer fuer schlanke bauwerke
US4644714A (en) * 1985-12-02 1987-02-24 Earthquake Protection Systems, Inc. Earthquake protective column support
DD293164A5 (de) * 1990-03-29 1991-08-22 Bauakademie,Inst. F. Heizung, Lueftung U. Grundlagen D. Bautechnik,De Schwingungstilger zur verminderung von schwingungen an bauwerken
DD293162A5 (de) * 1990-03-29 1991-08-22 Bauakademie,Inst. F. Heizung, Lueftung U. Grundlagen D. Bautechnik,De Schwingungstilger zur verminderung von schwingungen an bauwerken
JP3337402B2 (ja) * 1996-10-22 2002-10-21 三菱重工業株式会社 自己同調型制振装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329472A (en) 1963-08-13 1967-07-04 Ampep Ind Products Ltd Bearing units
US4320549A (en) 1978-07-04 1982-03-23 Glacier Gmbh-Deva Werke Rocker-sliding bearing assembly and a method of lining the assembly
US6085473A (en) 1997-02-05 2000-07-11 Thk Co., Ltd. Three-dimensional guiding apparatus
US6682849B2 (en) 1997-12-23 2004-01-27 Sri International Ion battery using high aspect ratio electrodes

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071066A1 (en) * 2005-12-22 2007-06-28 Motioneering Inc. Long period pendulum arrangement
WO2009075003A1 (en) * 2007-12-13 2009-06-18 Alga S.P.A. Tuned mass damper
CN103243643A (zh) * 2013-05-20 2013-08-14 成都市新筑路桥机械股份有限公司 一种桥梁水平弹性阻尼装置
CN105275107A (zh) * 2014-05-27 2016-01-27 段永定 消能减振系统
DE102018218999A1 (de) * 2018-11-07 2020-05-07 Maurer Engineering Gmbh Massedämpfer zur Dämpfung von Schwingungen eines Bauwerks, Bauwerk mit einem solchen Massedämpfer und Verfahren zur Einstellung der natürlichen Frequenz eines Massedämpfers
WO2020094807A1 (en) * 2018-11-07 2020-05-14 Maurer Engineering Gmbh Mass damper for damping vibrations of a structure, structure with such a mass damper and method for adjusting the natural frequency of a mass damper
CN113167067A (zh) * 2018-11-07 2021-07-23 毛雷尔工程有限公司 用于对结构振动进行阻尼的质量阻尼器，具有这种质量阻尼器的结构以及用于调节质量阻尼器固有频率的方法
AU2019374991B2 (en) * 2018-11-07 2023-05-25 Maurer Engineering Gmbh Mass damper for damping vibrations of a structure, structure with such a mass damper and method for adjusting the natural frequency of a mass damper
CN109881809A (zh) * 2019-03-21 2019-06-14 大连民族大学 一种复合滚动隔震支座

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Publication number Publication date
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