JPH06264646A - Fluid damper - Google Patents

Fluid damper

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Publication number
JPH06264646A
JPH06264646A JP5434493A JP5434493A JPH06264646A JP H06264646 A JPH06264646 A JP H06264646A JP 5434493 A JP5434493 A JP 5434493A JP 5434493 A JP5434493 A JP 5434493A JP H06264646 A JPH06264646 A JP H06264646A
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Prior art keywords
tank
controller
floor
motor
installed
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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.)
Granted
Application number
JP5434493A
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Japanese (ja)
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JP2909987B2 (en )
Inventor
Akira Teramura
Kazuo Yoshida
和夫 吉田
彰 寺村
Original Assignee
Ohbayashi Corp
Kazuo Yoshida
和夫 吉田
株式会社大林組
Priority date (The priority date 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 date listed.)
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Abstract

PURPOSE: To rapidly shift the gravity center by tilting a tank to the swinging direction to generate a large inertia, by holding the tank retaining a liquid on the installed race or a structure through a support and providing a driving motor for swinging motion at the side of the tank, a sensor detecting vibrations, and a controller instructing the drive timing of the motor.
CONSTITUTION: A tank 14 is installed on the uppermost floor to store water for controlling. A fixed supporter 18 is positioned at the bottom center of the tank 14 to support the tank to be see-saw-like. A pair of damping members 20 are interposed between both sides of the bottom of the tank and the floor 10. In this state, the tank is kept horizontal and the shock between the floor and the tank is prevented. Further, a motor 24 is arranged to swing the tank by its drive to both sides of the supporting member 18. And a sensor 30 is connected to a controller 32 to detect vibrations and output the strength and the direction to the controller 32. In this way, a large inertia is transferred to the structure and the vibration can be rapidly attenuated.
COPYRIGHT: (C)1994,JPO&Japio

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】この発明は、アクティブ流体方式の制振装置において、小さなマス比(流体重量/構造物重量)で大きな制振効果を得るようにした構造物の制振装置に関するものである。 BACKGROUND OF THE INVENTION This invention is a vibration damping device of the active fluid system, relates damping device of a structure in which to obtain a large vibration damping effect with a small mass ratios (fluid weight / structure weight) is there.

【0002】 [0002]

【従来の技術】アクティブ流体方式の制振装置は、例えば特開昭63−181868号公報に示すように、高層建築物の屋上などの所定の位置に貯留タンクを往復移動可能に設け、このタンクの内部に水などの液体を貯留したものであって、構造物が静止状態にあるときは、タンクは中央に位置して静止状態を保持し、また建物が地震や強風などによって水平振動するとこれに同期して同一位相でタンクを水平方向に往復移動させ、内部の液体がこの動きとは90°の位相差で揺動することによって建物の揺れとは逆方向の慣性力を与え、建物の振動の減衰力を生じさせ、建物の制振に寄与する。 The vibration damping apparatus of the Related Art Active fluid system, for example as shown in JP-63-181868, JP-provided storage tank in a predetermined position, such as the roof of a tall building for reciprocal movement, the tank be those which stores a liquid such as water inside the, when the structure is at rest, the tank holding the stationary state located at the center, also the building horizontally vibrated by an earthquake or strong wind which is reciprocated in the horizontal direction the tank with the same phase in synchronization with, giving an inertial force in a reverse direction inside the liquid and shaking buildings by swinging with a phase difference of 90 ° from this movement, the building cause the damping force of the vibration, it contributes to the damping of the building.

【0003】 [0003]

【発明が解決しようとする課題】しかし、従来の制振装置を構成するタンクは、従来は建物の固有振動数と同一の振動周期で横方向に移動可能に設けられただけのものであるため、タンク内の流体の重心移動が緩慢で、慣性力が小さく、したがって制振効果が小さい。 [0006] However, since the tank constituting a conventional vibration damping device it is conventionally is merely provided movably in the horizontal direction at the natural frequency and the same vibration period of the building , slow the movement of the center of gravity of the fluid in the tank, the inertial force is small, thus damping effect is small. 逆に言えば大きな制振力を与えるためには大容量のタンク,流体を必要とし、装置全体の建物に対する占有空間が大掛かりなものとなっていた。 Tank large capacity in order to provide greater damping force Conversely, the fluid requires, the space occupied for the entire building system had become a large-scale.

【0004】この発明は以上の問題を解決するものであって、その目的は、構造物の揺れに応じた最適タイミングでタンクを強制的に揺れ方向に傾けることによって、 [0004] By tilting a INVENTION The present invention is to solve the above problems, its object is a tank forcibly swinging direction at the optimum timing according to the shake of the structure,
小型のタンクであっても液体の重心移動を迅速に行わせて大きな慣性力を生じさせることができるようにした構造物の制振装置を提供するものである。 There is provided a damping device of a structure in which to be able to produce a large inertial force even small tank was performed rapidly the center of gravity movement of the liquid.

【0005】 [0005]

【課題を解決するための手段】前記目的を達成するため、この発明は、構造物の所定の位置に貯留タンクを設け、該タンクの内部に液体を貯留した制振装置において、前記タンクを前記構造物の設置面に支点部を介して揺動可能に保持するとともに、前記タンクの一側部に連結されてこれを強制的に揺動操作するための駆動機構と、前記構造物の振動を検出するセンサーと、該センサーの検出力に応じて前記駆動機構の駆動タイミングを指令する制御手段とを設けたものである。 To achieve the above object, according to an aspect of this invention, provided the storage tank at a predetermined position of the structure, the vibration damping device which stores the liquid inside of the tank, the said tank thereby swingably held via a fulcrum on the installation surface of the structure, a drive mechanism for forcibly swinging operation it is connected to one side of the tank, the vibration of the structure a sensor for detecting, is provided with a control means for commanding the drive timing of the drive mechanism in accordance with the detected power of the sensor.

【0006】 [0006]

【作用】以上の構成によれば、構造物が静止状態であると、貯留タンクの揺動支点と流体の重心位置は一致し静止している。 According to the above structure, when the structure is in a stationary state, the center of gravity of the rocking fulcrum and the fluid of the storage tank is matched stationary. この状態から構造物が振動するとその振動の強さ,方向をセンサーが検出し、制御部ではこのデータに基づいて最適駆動タイミングを演算し、そのタイミングを駆動機構に指令する。 When the structure of this state vibrates the vibration strength, direction sensor is detected, the control unit calculates the optimum drive timing based on this data, it instructs the timing to the drive mechanism. 駆動機構が貯留タンクを強制的に傾斜させると、液体がその傾斜方向に急速に揺動変位し、重心位置を変えて流体の流れは加速され、タンク壁面を通じてより大きな慣性力を構造物に伝える。 When the drive mechanism is forcibly tilted to the storage tank, the liquid is rapidly swings in its inclination direction, the fluid flow by changing the center-of-gravity position is accelerated, convey to the structure a greater inertial force through the tank wall .

【0007】 [0007]

【実施例】以下、この発明の実施例を図面を用いて詳細に説明する。 EXAMPLES Hereinafter, will be described in detail with reference to the drawings an embodiment of the present invention.

【0008】図1はこの発明の第一実施例を示すものである。 [0008] Figure 1 shows a first embodiment of the present invention. 図において、高層建築物の屋上の床10上にはU In FIG, U is on the roof of the floor 10 of the high-rise building
字管形をした貯留タンク14が配置され、内部に制御用の水16を蓄えている。 Storage tank 14 in which the shaped tube shape is disposed, are stored water 16 for control inside.

【0009】このタンク14の下面中心位置には床10 [0009] The lower surface center position of the tank 14 Floor 10
上に固定された支点部18が配置され、タンク14をシーソー式に揺動可能に保持しているとともに、タンク1 Fulcrum portion 18 which is fixed to the upper is arranged, together with the holding swingably tank 14 to seesaw, tank 1
4の下部両側と床10との間には圧縮コイルバネなどからなる一対のダンパー部材20が介在されている。 A pair of damper members 20 made of a compression coil spring is interposed between the lower sides and the floor 10 of 4.

【0010】ダンパー部材20は、タンク14が図の想像線に示す静止状態でタンク14を水平に支持するとともに、図の実線で示す揺動時においてタンク14の底面の両角部が床10に衝突することを防止するためのクッションとしての機能を兼用している。 [0010] The damper member 20, the collision tank 14 with horizontally supported in a stationary state shown by the imaginary line of the tank 14 in FIG., The two corners floor 10 of the bottom surface of the tank 14 during swinging indicated by the solid line in FIG. also it serves the function as a cushion to prevent the.

【0011】タンク14の一側部において、床10上には駆動モ―タ24が配置されている。 [0011] In one side portion of the tank 14, on the floor 10 is driven motor - motor 24 is arranged. 駆動モータ24の出力軸26はモータ本体の駆動に伴い出没するもので、 The output shaft 26 of the drive motor 24 by way infested with the driving of the motor body,
この出力軸26はリンク28を介してタンク14の一側部に連結され、駆動モータ24の駆動に伴いタンク14 The output shaft 26 is connected to one side of the tank 14 via a link 28, with the driving of the driving motor 24 tank 14
を支点部18を中心として強制的に左右に揺動操作させる。 Forcibly swung to the left and right around the fulcrum portion 18 a.

【0012】また床10上の適宣の位置には建物の振動の強さ及びその方向を検出する振動検出センサー30が配置されている。 [0012] the position of a suitable declaration on the floor 10 is the vibration detecting sensor 30 for detecting the intensity and direction of the vibration of the building is located. このセンサー30はタンク14の近傍の適宣位置に配置された制御部32に接続されている。 The sensor 30 is connected to a control unit 32 disposed Tekisen position near the tank 14.

【0013】制御部32は、前記タンク14の容積,水16の総重量,全体の質量,回転モーメントなどのデータが予め記憶されているとともに、センサー30の検出出力を受け、現在の振動の強さ及び方向から前記データに基づいてタンク14の最適な傾きの方向及びタイミングを即時演算し、駆動モータ24にその駆動方向,タイミングを指令する。 The control unit 32, the volume of the tank 14, the total weight of the water 16, the total mass, together with data such as the rotational moment is stored in advance, it receives the detection output of the sensor 30, the intensity of the current vibration and an optimum direction and timing of the gradient of the tank 14 immediately calculated based on the data from the direction, the drive direction to the drive motor 24, instructs the timing.

【0014】したがって、建物が静止状態にあるときは、駆動モータ24はタンク14を中立位置に保持したままの状態で静止し、タンク14は支点部18を支点として水平に位置し、その支点Oと水の重心G0 は一致した状態にある。 [0014] Therefore, when the building is in a quiescent state, the driving motor 24 is at rest in a state of holding the tank 14 to the neutral position, the tank 14 is located horizontally fulcrum portion 18 as a fulcrum, the fulcrum O the center of gravity G0 of the water is in a matched state.

【0015】この状態から振動が建物に伝わると、センサー30がこれを検出し、その振動の強さ及び方向を制御部32に出力する。 [0015] Vibration from this state when transferred to the building, the sensor 30 detects this and outputs the intensity and direction of the vibration to the control unit 32.

【0016】制御部32では得られたデータに基づいて駆動モータ24に対する駆動方向及び駆動タイミングを即時演算し、この演算結果により駆動モータ24はそのタイミングに応じて駆動され、タンク14を左右いずれかに傾ける。 The driving direction and a driving timing for driving the motor 24 based on the data obtained in the control unit 32 immediately operational, the drive motor 24 by the calculation result is driven according to the timing, either the tank 14 horizontally cant. この結果、水16が傾き方向に加速されつつ移動し、その揺動変位±xがタンク14の壁面により大きな慣性力Fとして作用して建物に伝わることになる。 As a result, the water 16 is inclined to move while being accelerated in the direction, the swinging displacement ± x is being transmitted to the building acts as a large inertial force F by the wall of the tank 14.

【0017】図2は、ある構造物モデルに振動を与えたときの振幅の時刻歴の実験例を示すものであって、 [0017] Figure 2, there is shown an experimental example of the amplitude time histories when vibrated to a structure model,
(a)に示すようにある特定の振幅の入力波を構造物モデルに与えた場合、制振のための制御が行われていない場合には、(b)に示すように構造物モデルは順次減衰しつつも振動が持続する。 When given an input wave of a specific amplitude in as shown in (a) the structure model, if a control for damping not performed sequentially the structure model as shown in (b) while damping the vibration is sustained.

【0018】これに対し、水の重心移動のみによってタンクが傾く方式を採用した場合、すなわち駆動モータによる傾き制御を行っていない場合には、(c)に示すように振幅は急激に減衰するが、長い間小さな振動が持続する。 [0018] By contrast, the case of adopting the method that the tank is inclined only by movement of the center of gravity of the water, that is, when not subjected to tilt control by the drive motor, the amplitude is rapidly attenuated as shown in (c) , long a small vibration is sustained.

【0019】また、これに加え駆動モータを最適タイミングで駆動した場合には同一のモデルであっても、 Further, even in the case of driving at the optimum timing drive motor additionally it is the same model,
(d)に示すように振幅は急激に減衰し、しかも振動も短時間の間に消滅することになる。 Amplitude as shown in (d) is rapidly attenuated, yet vibration will disappear in a short time.

【0020】図3はこの発明の第二実施例を示すもので前記実施例と同一箇所には同一記号を付し、異なる点にのみ異なる符号を用いて説明を行う。 [0020] Figure 3 are denoted by the same symbols in the Examples and the same place in one showing a second embodiment of the present invention is described with reference to only different codes at different points.

【0021】図において水16を内部に蓄えたU字管形の貯留タンク14の両側の起立部14aの間には支持バー34が掛け渡され、この支持バー34の中心部は支点ピン36を介して床面10上に立設された支持ブラケット38の上端に連結し、前記タンク14をやじろべえ式にバランス保持している。 [0021] Figure support bar 34 between the opposite sides of the upright portions 14a of the storage tank 14 of the U-shaped tube form the water 16 accumulated inside is passed over at the center pivot pin 36 of the support bars 34 through and connected to the upper end of the support bracket 38 which is erected on the floor surface 10, it is balanced holding the tank 14 to the balancing toy type.

【0022】支点ピン36は、駆動モータ24にクランク等を介して連結され、駆動モータの駆動によってタンク14は支点ピン36を中心に左右に強制的に揺動操作される。 The fulcrum pin 36 is connected via a crank or the like to the drive motor 24, the tank 14 by the driving of the driving motor is forcibly swung to the right and left about the support pins 36. また、この駆動モータ24もセンサー30の検出出力に応じた制御部32からの指令による駆動方向, Further, the driving direction by the instruction from the control unit 32 according to the detection output of the drive motor 24 is also a sensor 30,
タイミングで駆動され、その作用は第一実施例と同様である。 Is driven at a timing, its action is similar to the first embodiment.

【0023】また、この実施例ではタンク14をやじろべえ式にバランス支持するため、水平を保持するためのダンパー部材が不要となる。 Further, in this embodiment in order to balance supporting the tank 14 to the balancing toy type, the damper member for holding the horizontal unnecessary.

【0024】なお、各実施例では貯留タンクとしてU字管形のものを用いたが、矩形状のタンク、その他の適宜な形状とすることができる。 [0024] Although used as a U-shaped tube form as a storage tank in each embodiment, can be rectangular tanks, and other suitable shape.

【0025】 [0025]

【発明の効果】以上各実施例によって詳細に説明したように、この発明による流体式制振装置にあっては、構造物が振動するとその振動の強さ,方向をセンサーが検出し、制御部ではこのデータに基づいて最適な駆動タイミングを演算し、そのタイミングを駆動機構に指令する。 [Effect of the Invention] As described above respective Examples in detail, in the fluid type vibration damping device according to the present invention, the vibration intensity when the structure vibrates, the direction sensor is detected, the control unit in calculating the optimum driving timing based on this data, it instructs the timing to the drive mechanism.
そして駆動機構が貯留タンクを強制的に傾斜させると、 When the drive mechanism is forcibly tilted to the storage tank,
液体がその傾斜方向に急速に揺動変位し、重心位置を変えて流体の流れは加速され、タンク壁面を通じてより大きな慣性力を構造物に伝えるため、従来に比べて小さなマス比で大きな制振力が得られ、早期に構造物の振動を減衰できる。 Liquid is rapidly swings in its inclination direction, the fluid flow is accelerated by changing the position of the center of gravity to convey to the structure a greater inertial force through the tank wall, a large damping small mass ratio as compared to conventional force can be obtained, damping vibrations of the structure at an early stage. また小型にできるため安価で、占有空間も小さくて済む利点がある。 The inexpensive because it can compact, there is an advantage that only a small also occupy space.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】この発明の第一実施例による制振装置の説明図である。 FIG. 1 is an explanatory view of a vibration damping device according to the first embodiment of the present invention.

【図2】(a)〜(d)はある構造物モデルに振動を与えたときの振幅の時刻歴の実験例を示すグラフである。 Figure 2 (a) ~ (d) is a graph showing an experimental example of the amplitude time histories when vibrated to a structure model.

【図3】この発明の第二実施例による制振装置の説明図である。 3 is an explanatory view of a vibration damping device according to the second embodiment of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

10 床 14 貯留タンク 16 水(液体) 18 支点部 24 駆動モータ(駆動機構) 30 振動検出センサー 32 制御部(制御手段) 36 支点ピン(支点部) 10 Floor 14 storage tank 16 water (liquid) 18 fulcrum 24 driving motor (driving mechanism) 30 vibration detecting sensor 32 control unit (control means) 36 fulcrum pin (fulcrum portion)

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 構造物の所定の位置に貯留タンクを設け、該タンクの内部に液体を貯留した制振装置において、 前記タンクを前記構造物の設置面に支点部を介して揺動可能に保持するとともに、前記タンクの一側部に連結されてこれを強制的に揺動操作するための駆動機構と、前記構造物の振動を検出するセンサーと、該センサーの検出力に応じて前記駆動機構の駆動タイミングを指令する制御手段とを設けたことを特徴とする流体式制振装置。 1. A provided storage tank at a predetermined position of the structure, the vibration damping device which stores the liquid inside of the tank, the tank swingably via a fulcrum on the installation surface of the structure holds, the drive mechanism of forced to swing operation this is connected to one side of the tank, a sensor for detecting vibration of the structure, the drive in accordance with the detected power of the sensor hydraulic damping device, characterized in that a control means for commanding the drive timing of the mechanism.
JP5434493A 1993-03-15 1993-03-15 Hydraulic damping device Expired - Fee Related JP2909987B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5434493A JP2909987B2 (en) 1993-03-15 1993-03-15 Hydraulic damping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5434493A JP2909987B2 (en) 1993-03-15 1993-03-15 Hydraulic damping device

Publications (2)

Publication Number Publication Date
JPH06264646A true true JPH06264646A (en) 1994-09-20
JP2909987B2 JP2909987B2 (en) 1999-06-23

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Family Applications (1)

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JP5434493A Expired - Fee Related JP2909987B2 (en) 1993-03-15 1993-03-15 Hydraulic damping device

Country Status (1)

Country Link
JP (1) JP2909987B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8001734B2 (en) * 2004-05-18 2011-08-23 Simpson Strong-Tie Co., Inc. Moment frame links wall
WO2014046549A1 (en) * 2012-09-21 2014-03-27 Universitetet I Stavanger Pendulum type liquid column damper (plcd) for controlling the vibration of a building structure
KR101702763B1 (en) * 2015-07-28 2017-02-03 강원대학교산학협력단 Vibration Control Apparatus using Magnetic Force

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03137368A (en) * 1989-10-20 1991-06-11 Shimizu Corp Vibration isolating device for structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03137368A (en) * 1989-10-20 1991-06-11 Shimizu Corp Vibration isolating device for structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8001734B2 (en) * 2004-05-18 2011-08-23 Simpson Strong-Tie Co., Inc. Moment frame links wall
US8763319B2 (en) 2004-05-18 2014-07-01 Simpson Strong-Tie Company Inc. Moment frame links wall
WO2014046549A1 (en) * 2012-09-21 2014-03-27 Universitetet I Stavanger Pendulum type liquid column damper (plcd) for controlling the vibration of a building structure
KR101702763B1 (en) * 2015-07-28 2017-02-03 강원대학교산학협력단 Vibration Control Apparatus using Magnetic Force

Also Published As

Publication number Publication date Type
JP2909987B2 (en) 1999-06-23 grant

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