JPH0356735A - Damper for structure - Google Patents
Damper for structureInfo
- Publication number
- JPH0356735A JPH0356735A JP18892889A JP18892889A JPH0356735A JP H0356735 A JPH0356735 A JP H0356735A JP 18892889 A JP18892889 A JP 18892889A JP 18892889 A JP18892889 A JP 18892889A JP H0356735 A JPH0356735 A JP H0356735A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- fluid
- outer tube
- piston
- hole
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000013016 damping Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001634822 Biston Species 0.000 description 1
- FFGPTBGBLSHEPO-UHFFFAOYSA-N carbamazepine Chemical compound C1=CC2=CC=CC=C2N(C(=O)N)C2=CC=CC=C21 FFGPTBGBLSHEPO-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利川分野）
本発明は構造物の、風，地震等の振動を低滅するための
制振用ダンパーに係るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field) The present invention relates to a damper for damping structures to reduce vibrations caused by wind, earthquakes, etc.
（従来の技術）
構造物がｉＩ！！震や凧等によって強１＋１１振動全受
けろ場合に、同構造物の滅哀抵抗が大きいほど、振動．
振幅が低滅さ刺る。(Prior art) The structure is iI! ! When a structure receives all of the strong 1+11 vibrations due to earthquakes, kites, etc., the greater the resistance of the same structure, the more vibrations it will receive.
The amplitude is low and it stings.
前記構造物の滅哀抵抗を増太さ仕るた１）ｂ，横造物制
振用ダンバーが取付けられるが、従；Ｋのこの種のダン
パーは、粘性流体を容れた容器内に、構造物に取付けた
抵抗体が、措造物の振動に伴って同澁体内を移動し、そ
の際に生起する同流体の粘性抵抗によって振動を減衰す
るようにｔ！威されている．
（発明が解決しようとずる課８）
しかしながら前記従来のダンパーは高度の精度を必要と
し、製作が容易でむ《、コスト高になるという問題点が
あった。In order to increase the damping resistance of the structure, a damper for damping vibrations of horizontal structures is installed. A resistor attached to t! moves inside the structure as the structure vibrates, and the vibration is damped by the viscous resistance of the fluid generated at that time. I'm being intimidated. (Question 8 that the invention seeks to solve) However, the conventional damper requires a high degree of precision, is not easy to manufacture, and has the problems of high cost.
本発明は前記従来技術のイ１する問題点に鑑みて提案さ
れたもので、その目的とする処は、簡単な構威で製作が
容易で安価で３，るにもかかわら１、優れた制振効果を
奏する構１ｊ＞物制振用ダンバーを提供する点にある。The present invention has been proposed in view of the above-mentioned problems of the prior art, and has the following objectives: 1. It has a simple structure, is easy to manufacture, is inexpensive, 3. Structure 1j that produces a vibration effect> Provides a damper for damping vibrations of objects.
（課題を解決するための手段）
前記の目的を達威するため、本発明に係る構造物制振用
ダンバーは、流体が充填された円筒状の外管内に上下動
自在に嵌挿されたシャフトの下端に、前記外管の内径よ
り僅かに小さな外径をイ１するピストンを装架するとと
もに、前記外管の上端部に、前記シャフトが遊挿される
透孔を有する蓋片を設置して構成されている。(Means for Solving the Problems) In order to achieve the above-mentioned object, a damper for structural vibration damping according to the present invention includes a shaft fitted into a cylindrical outer tube filled with fluid so as to be movable up and down. A piston having an outer diameter slightly smaller than the inner diameter of the outer tube is installed at the lower end of the outer tube, and a lid piece having a through hole into which the shaft is loosely inserted is installed at the upper end of the outer tube. It is configured.
（作用）
本発明は前記したように、円筒状の外管に充填された流
体中を、同外管の内１ビより僅かに小さな外径を有する
ピス１・ンを、前記外管に嵌挿されたシャフトを介して
上下動させることによって、前記外管内の流体に生しる
粘性抵抗によって構造物の減衰抵抗が得られるようにし
たものである。(Function) As described above, the present invention allows a piston having an outer diameter slightly smaller than the inner diameter of the cylindrical outer tube to be inserted into the fluid filled in the outer tube. By moving the structure up and down via an inserted shaft, damping resistance of the structure is obtained by the viscous resistance generated in the fluid within the outer tube.
而してこの際、前記外管の上端部に、前記シャフトが遊
挿される透孔を有する蓋片が設置されたことによって、
前記ピストンの上下運動によって外管内の流体の上面が
乱れるのが防止される．（実施例）
以下本発明を図示の実施例について説明する．（１）は
円筒状の外管で、水，オイル等の流体（２）が満たされ
ている。At this time, a lid piece having a through hole into which the shaft is loosely inserted is installed at the upper end of the outer tube.
The upper surface of the fluid in the outer tube is prevented from being disturbed by the vertical movement of the piston. (Example) The present invention will be explained below with reference to the illustrated example. (1) is a cylindrical outer tube filled with a fluid (2) such as water or oil.
同流体（２）内にはシャフト（３）が上下動自在に嵌挿
され、同シャフト（３）の下端には前記外管（１）の内
径より｛蓋かに小さな外径を有するピストン（４）が装
架され、１〕０記シャフト（３）の運動に｛゛［って、
同ピストン（４）が外管（１）内の疏体（２）内を上Ｆ
するように構成されている．
更に前記外管（１）の上部には、ピストン（４）の上下
運動によって流体（２）の上面が乱れるのを防止するた
めに蓋片（５）が設置され、同盟片（５）の中央にシャ
フト（３）の外径よりやや大径の透孔（６）が穿設され
、同透孔（６）にシャフト（３）が上下動自在なように
遊挿されている。A shaft (3) is fitted into the fluid (2) so as to be able to move up and down, and at the lower end of the shaft (3) there is a piston (with an outer diameter much smaller than the inner diameter of the outer tube (1)). 4) is mounted, and the movement of the shaft (3) of 1]
The piston (4) moves upward inside the canal (2) inside the outer tube (1).
It is configured to do so. Furthermore, a lid piece (5) is installed on the upper part of the outer tube (1) to prevent the upper surface of the fluid (2) from being disturbed by the vertical movement of the piston (4), and a lid piece (5) is installed at the center of the alliance piece (5). A through hole (6) having a diameter slightly larger than the outer diameter of the shaft (3) is bored in the through hole (6), and the shaft (3) is loosely inserted into the through hole (6) so as to be vertically movable.
図示の実施例は前記したように構威されているので、前
記シャフト（３）が外管（１）内を上下動ずるのに伴っ
て、同外管（１）内の流体（２）内を上下動するピスト
ン（４）により同流体（２）に生しる粘性抵抗によって
、構造物の減衰抵抗が得られろ。The illustrated embodiment is configured as described above, so that as the shaft (3) moves up and down inside the outer tube (1), the fluid (2) inside the outer tube (1) moves upward and downward. The damping resistance of the structure is obtained by the viscous resistance produced in the fluid (2) by the piston (4) moving up and down.
実験によれば、ピストン（４）の外径をｄ，長さをｌ、
外管（１）との隙間をＳ，ビス１・ン（４）の上下方向
の運動速度をＶとすると、図示の実施例に示すダンパー
の減衰抵抗Ｒは次式で表わされる。According to experiments, the outer diameter of the piston (4) is d, the length is l,
Assuming that the gap with the outer tube (1) is S, and the vertical movement speed of the screw (4) is V, the damping resistance R of the damper shown in the illustrated embodiment is expressed by the following equation.
ｄｌ
Ｒ−Ｃ Ｖ” （ただしａ〉１）Ｓ
Ｃ：比例定数
従って前記ピストン（４）の外径ｄ、長さｌ及び外管（
１）との隙間Ｓの値を選定することによって、所要の減
衰抵抗を得ることができる。dl R-C V” (where a>1) S C: proportionality constant Therefore, the outer diameter d, length l, and outer tube (
By selecting the value of the gap S with respect to 1), the required damping resistance can be obtained.
なおピストン（４）と外管（１）との隙間の寸法Ｓは、
流体が潤滑油の働きをするため、０．１閣程度の小さな
場合でもピストン（４）の運動を妨げることはない
第４図は前記ダンバーを本発明が量に特廟昭６３２５３
７６９号において提案した構造物における振動減衰増幅
装置に適用した実施例を示し、挺子（１０を下階床αつ
に固定した支持台θ幻上の支点Ｐで両端部の長さがλ・
ｌとなる水平挺子に形威し、その両端力点Ｑを前記床０
ηに設置した実施例に示すダンバーのシャフト（３）に
連結し、挺子（１１）における支点Ｐより長さｌなる上
方突出部の端部荷重点Ｓを上階床Ｇ〜にビンを介して連
結したものである。The dimension S of the gap between the piston (4) and the outer tube (1) is
Since the fluid acts as a lubricating oil, it does not interfere with the movement of the piston (4) even if it is as small as 0.1 mm.
An example of application to the vibration damping amplification device in a structure proposed in No. 769 is shown.
Shape it into a horizontal lever 1, and place the force points Q at both ends on the floor 0.
Connected to the shaft (3) of the damper shown in the example installed at This is a concatenation.
実験によれば図示の如き水を使用したダンパーの凍衰抵
抗力はＣｙ−ｔ”となり、実験ではａ″？１．６という
｛直を示している．
この場合、第５図から明らかなように
Ｃｘ− ｘ−２λ ・ｃｙ−ｙ”＝２λｌ ” ｌ
， Ｃｙ − ｘａ．’．ＣＩ＝２λ＋＊ａ −Ｃｙ
となり、ａ ＝１．６ 、λ一ｌＯとすれば、構造物の
振動減衰係数は約８００倍と更に大きな値を示す。According to experiments, the freezing resistance of a damper using water as shown in the figure is Cy-t'', and in experiments it is a''? It shows a direct value of 1.6. In this case, as is clear from FIG.
, Cy-xa. '． CI=2λ+*a −Cy
Therefore, if a = 1.6 and λ - lO, the vibration damping coefficient of the structure becomes approximately 800 times larger.
（発明の効果）
本発明に係る横造物制振用ダンパーは前記したように、
流体が充填された円筒状の外管内に上下動自在に嵌挿さ
れたシャフトの下・瑞に、前記外管の内径より僅かに小
さな外径を有するピストンを装架し、同ピストンを前記
シャフトの上下動に伴って外管内の流体内を上下動せし
めることによって生しる、流体の粘性抵抗を利用して、
減衰抵抗を得るようにしたものであり、ピストンの外径
、長さ、外管との隙間の１１法を適当に選定することに
よって、所要の減衰抵抗が得られるようにしたものであ
る。(Effects of the Invention) As described above, the damper for horizontal structure vibration control according to the present invention has the following features:
A piston having an outer diameter slightly smaller than the inner diameter of the outer tube is mounted below the shaft, which is fitted into a cylindrical outer tube filled with fluid so as to be able to move up and down, and the piston is attached to the shaft. Utilizing the viscous resistance of the fluid created by moving the fluid inside the outer tube up and down with the vertical movement of the
The desired damping resistance can be obtained by appropriately selecting the outside diameter of the piston, its length, and the gap between it and the outer tube.
更に本発明によれば、前記外管の上端部に荊記シャフト
が遊挿される透孔を有する蓋片を設置して、同シャフト
の上下運動を妨げることのないようにするとともに、同
シャフトの上下運動によって外管内の流体Ｆ面の乱れを
防止し、ダンバーの減衰作用が確実に発揮されるように
したものである。Furthermore, according to the present invention, a lid piece having a through hole into which the shaft is loosely inserted is installed at the upper end of the outer tube, so that the vertical movement of the shaft is not obstructed, and the shaft is The vertical movement prevents disturbance of the fluid F surface within the outer tube, and ensures that the damping effect of the damper is exerted.
このように本発明によれば、構造が簡単で情度をあまり
必要とせず、製作が容易で低コストであって、しかも構
逍物の減衰性能を確実に発揮することができる構造物制
振用ダンバーが構戒されるものであ？ｌ０As described above, according to the present invention, a structural vibration damper is provided which has a simple structure, does not require much consideration, is easy to manufacture, is low cost, and can reliably exhibit the damping performance of a structure. Isn't that what Dunbar is used for? l0
第ｌ図は本発明に係る構逍物制振用ダンパーの一実施例
を示ず沼断而図、第２図及びて０３図は夫々第１図Ｏ矢
視Ａ−Ａ図並に矢視Ｂ−［３図、第４図は構造物の振動
減衰増幅装置に適用し，た実施例を示す縦断面図、第５
図はその作用説明図である。
（１１・・・外管、 （２）・・・流体、（
３）・・・シャフト、 （４）・・・ビストノ
、（５）・・・４片、 （６）・・・透孔。Figure 1 shows an embodiment of the damper for structural vibration control according to the present invention; B- [Figures 3 and 4 are longitudinal cross-sectional views showing an embodiment applied to a vibration damping amplification device for structures, and Figure 5
The figure is an explanatory diagram of its operation. (11...outer tube, (2)...fluid, (
3)...Shaft, (4)...Biston, (5)...4 pieces, (6)...Through hole.
Claims (1)
れたシャフトの下端に、前記外管の内径より僅かに小さ
な外径を有するピストンを装架するとともに、前記外管
の上端部に、前記シャフトが遊挿される透孔を有する蓋
片を設置してなることを特徴とする構造物制振用ダンパ
ー。A piston having an outer diameter slightly smaller than the inner diameter of the outer tube is mounted on the lower end of a shaft that is fitted into a cylindrical outer tube filled with fluid so as to be able to move up and down, and at the upper end of the outer tube. A damper for damping vibrations of a structure, further comprising a lid piece having a through hole into which the shaft is loosely inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18892889A JPH0356735A (en) | 1989-07-24 | 1989-07-24 | Damper for structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18892889A JPH0356735A (en) | 1989-07-24 | 1989-07-24 | Damper for structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0356735A true JPH0356735A (en) | 1991-03-12 |
Family
ID=16232344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18892889A Pending JPH0356735A (en) | 1989-07-24 | 1989-07-24 | Damper for structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0356735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000074296A (en) * | 1999-05-19 | 2000-12-15 | 박장호 | An apparatus and method for preventing a building's collapse caused by earthquake |
| JP2002093530A (en) * | 2000-08-23 | 2002-03-29 | Fci | Stacked electric connector for use with filter insert |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138872A (en) * | 1974-09-30 | 1976-03-31 | Hitachi Ltd | Handotaisochi no seizohoho |
| JPS6332432U (en) * | 1986-08-19 | 1988-03-02 |
-
1989
- 1989-07-24 JP JP18892889A patent/JPH0356735A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138872A (en) * | 1974-09-30 | 1976-03-31 | Hitachi Ltd | Handotaisochi no seizohoho |
| JPS6332432U (en) * | 1986-08-19 | 1988-03-02 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000074296A (en) * | 1999-05-19 | 2000-12-15 | 박장호 | An apparatus and method for preventing a building's collapse caused by earthquake |
| JP2002093530A (en) * | 2000-08-23 | 2002-03-29 | Fci | Stacked electric connector for use with filter insert |
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