JPH08277874A - Highly viscous damper - Google Patents
Highly viscous damperInfo
- Publication number
- JPH08277874A JPH08277874A JP8220495A JP8220495A JPH08277874A JP H08277874 A JPH08277874 A JP H08277874A JP 8220495 A JP8220495 A JP 8220495A JP 8220495 A JP8220495 A JP 8220495A JP H08277874 A JPH08277874 A JP H08277874A
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- inner cylinder
- fixed
- vibration
- viscosity
- 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.)
- Granted
Links
Landscapes
- Fluid-Damping Devices (AREA)
- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は斜張橋のケーブル制振用
などに使用される高粘性ダンパに係り、特に、簡単な構
造で高くかつ安定した効果を得られるようにした高粘性
ダンパに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-viscosity damper used for cable damping of cable-stayed bridges, and more particularly to a high-viscosity damper capable of obtaining a high and stable effect with a simple structure. It is a thing.
【０００２】[0002]
【従来の技術】一般に、斜張橋は図４に示すように、塔
Ｔから多数のケーブルｃを介して橋桁ｂを吊す構成を採
るが、近年における斜張橋は長径間化し、ケーブルが長
大化すると共にポリエチレン管被覆の大径ケーブルが採
用され、これに伴い風や雨滴等に起因するケーブルの振
動が問題となっている。尚ケーブルの振動は３Ｈｚ程度
の低い周波数のものである。2. Description of the Related Art Generally, as shown in FIG. 4, a cable-stayed bridge has a structure in which a bridge girder b is hung from a tower T via a number of cables c. However, cable-stayed bridges in recent years have a long span and long cables. In addition, a large-diameter cable covered with polyethylene pipes has been adopted, and along with this, the vibration of the cable caused by wind, raindrops, etc. has become a problem. The vibration of the cable has a low frequency of about 3 Hz.
【０００３】特開平３−９６５０６号公報には、このケ
ーブルの制振を行うための制振装置即ちダンパが報告さ
れている。図５乃至図７に示すように、このダンパａ
は、橋桁ｂ上においてこれとケーブルｃとをケーブルｃ
の長手方向に対し直角に掛け渡して設置される。ダンパ
ａは、ケーブルｃ側に固定される上部構造体ｄと、橋桁
ｂ側に固定される下部構造体ｅとから主に構成される。
上部構造体ｄは、その蓋板ｆの下面に互いに平行となる
よう溶接固定された抵抗板ｇを有し、これら抵抗板ｇ
は、下部構造体ｅの箱体ｈと隔壁ｉとによって区画され
た独立室ｊにそれぞれ挿入される。独立室ｊには高粘性
体ｋが充填され、これに抵抗板ｇが没入され、これによ
りケーブルｃの振動に伴う抵抗板ｇの振動を高粘性体ｋ
の粘性せん断抵抗を利用して減衰させるようになってい
る。特にケーブルｃ振動時にあって、下部構造体ｅは橋
桁ｂ側に固定されるため不動とみなされ、よって抵抗板
ｇは独立室ｊ内で相対運動を行うことになり、かつその
運動は高粘性体ｋにより減衰される。尚高粘性体は高分
子化合物で、常温で数百万ストークス程度の動粘度を有
するものである。Japanese Unexamined Patent Publication (Kokai) No. 3-96506 reports a vibration damping device, that is, a damper for damping the cable. As shown in FIGS. 5 to 7, the damper a
On the bridge girder b and the cable c
Will be installed at right angles to the longitudinal direction. The damper a is mainly composed of an upper structure d fixed to the cable c side and a lower structure e fixed to the bridge girder b side.
The upper structure d has resistance plates g welded and fixed to the lower surface of the cover plate f so as to be parallel to each other.
Are inserted into independent chambers j defined by the box h of the lower structure e and the partition wall i. The independent chamber j is filled with a high-viscosity material k, and a resistance plate g is immersed in the high-viscosity material k.
The viscous shear resistance of is used for damping. Especially when the cable c is vibrating, the lower structure e is fixed because it is fixed to the bridge girder b side, so that the resistance plate g makes relative movement in the independent chamber j, and the movement is highly viscous. Attenuated by body k. The high-viscosity substance is a polymer compound, and has a kinematic viscosity of about several million Stokes at room temperature.
【０００４】ケーブルｃの振動は、主に上下方向、即ち
長手方向と直交する方向の成分が支配的であり、従って
抵抗板ｇの下方には充分な隙間が設けられ、そのストロ
ーク量を十分確保できるようになっている。また抵抗板
ｇの振動を実質的に減衰させるのは、これの対向面、即
ち箱体ｈの内壁及び隔壁ｉとの間に存在する高粘性体ｋ
の粘性せん断抵抗であり、この抵抗は二面間の間隔に密
接に関係するので、抵抗板ｇを蓋板ｆに正確に位置決め
すると共に、抵抗板ｇと箱体ｈの内壁及び隔壁ｉとが平
行かつ一定間隔となるよう注意を払う必要がある。The vibration of the cable c is mainly dominated in the vertical direction, that is, in the direction orthogonal to the longitudinal direction. Therefore, a sufficient gap is provided below the resistance plate g, and a sufficient stroke amount is secured. You can do it. Further, the vibration of the resistance plate g is substantially damped by the highly viscous material k existing between the opposing surfaces thereof, that is, the inner wall of the box h and the partition wall i.
Viscous shear resistance, which is closely related to the distance between the two surfaces. Therefore, the resistance plate g is accurately positioned on the lid plate f, and the resistance plate g and the inner wall of the box h and the partition wall i are separated. Care must be taken to ensure parallel and uniform spacing.
【０００５】またケーブルｃの振動は、僅かではあるが
上下方向以外の成分もあり、即ち三次元的に振動するた
め、これを許容すべく抵抗板ｇの側方にも隙間が設けら
れている。つまり抵抗板ｇは三次元的な運動が許容され
ており、かつそのあらゆる方向の運動は高粘性体ｋによ
って減衰されることになる。Further, the vibration of the cable c has a small component other than the vertical direction, that is, it vibrates three-dimensionally. Therefore, a gap is also provided on the side of the resistance plate g to allow this. . That is, the resistance plate g is allowed to move three-dimensionally, and the motion in all directions is damped by the highly viscous body k.
【０００６】[0006]
【発明が解決しようとする課題】ところで、ダンパの設
置時、抵抗板ｇを蓋板ｆに対し完全に直角とし、かつ互
いの抵抗板ｇが完全に平行となるよう正確に位置決めし
なければならず、抵抗板ｇがある程度の長さを持つ平板
であることからそれが面倒であり、設置に手間がかかる
欠点がある。By the way, when the damper is installed, the resistance plate g must be perfectly perpendicular to the cover plate f, and the resistance plates g must be accurately positioned so as to be completely parallel to each other. However, since the resistance plate g is a flat plate having a certain length, it is troublesome and has a drawback that the installation is troublesome.
【０００７】また抵抗板ｇは平板状であるため上下以外
の振動たとえば抵抗板ｇの面に直角方向の振動や抵抗板
ｇが回転するような捩り振動に対しては、高粘性体ｋは
上下振動のような純粋の粘性せん断抵抗を生じないので
振動を効果的に抑制する能力が低い。Further, since the resistance plate g is a flat plate, the high viscous body k moves up and down with respect to vibrations other than up and down, for example, vibrations in a direction perpendicular to the surface of the resistance plate g and torsional vibrations such that the resistance plate g rotates. Since it does not generate pure viscous shear resistance such as vibration, its ability to suppress vibration effectively is low.
【０００８】一方、粘性せん断抵抗力Ｆは速度勾配（Ｖ
／Ｄ）の関数で表される。即ち Ｆ＝ｆ（Ｖ／Ｄ） ここでＶは図８に示されるように固定板と抵抗板との間
の相対速度でありＤは固定板と抵抗板との間の距離であ
る。従ってＦを大きくするためにはＤを小さくせねばな
らない。On the other hand, the viscous shearing resistance force F is the velocity gradient (V
/ D) function. That is, F = f (V / D) where V is the relative speed between the fixed plate and the resistance plate and D is the distance between the fixed plate and the resistance plate as shown in FIG. Therefore, in order to increase F, D must be decreased.
【０００９】ところが図６および図７に示される従来の
ダンパでは抵抗板ｇは一部が高粘性体内に没入し、一部
は空気中に露出しているので、抵抗板ｇの表面と固定板
の表面（箱体ｈの内壁または隔壁ｉの表面）との間には
図７に示すように高粘性体の自由表面ｍが存在する。こ
の自由表面ｍは固定板近傍では停止しているのに対し、
抵抗板ｇ近傍では抵抗板ｇの運動に引きづられて同じ運
動をする。従って自由表面ｍは抵抗板ｇの振動の一周期
毎に、図９に示すように固定板側を起点としてｍ、ｍ′
の間でαの角度で揺動する。ところで抵抗板ｇが大きな
速度で振動すると、抵抗板ｇの近傍で自由表面ｍが抵抗
板ｇから剥離し、剥離した部分から空気を巻き込み、剥
離部分が増々拡大することになる。そうすると抵抗板ｇ
と高粘性体ｋとの接触面積が低下し、ダンパの制振能力
が低下する。この傾向は角度αが大きいほど、また速度
Ｖが大きいほど著しいので、先に述べたようにＤが小さ
く、振巾Ｘ周波数の数値が大きいときに特に問題とな
る。However, in the conventional damper shown in FIGS. 6 and 7, a part of the resistance plate g is immersed in the highly viscous body and a part thereof is exposed in the air. Therefore, the surface of the resistance plate g and the fixing plate are fixed. As shown in FIG. 7, there is a free surface m of a highly viscous material between the surface of the above (the inner wall of the box h or the surface of the partition wall i). While this free surface m stops near the fixed plate,
In the vicinity of the resistance plate g, the same motion is performed by the motion of the resistance plate g. Therefore, the free surface m is m, m ′ for each cycle of the vibration of the resistance plate g, starting from the fixed plate side as shown in FIG.
Rocks at an angle of α between. When the resistance plate g vibrates at a high speed, the free surface m is separated from the resistance plate g in the vicinity of the resistance plate g, air is entrained from the separated part, and the separated part is further expanded. Then the resistance plate g
The contact area between the high-viscosity material k and the high-viscosity material k is reduced, and the damping capability of the damper is reduced. This tendency becomes more remarkable as the angle α becomes larger and the speed V becomes larger, so that it becomes a particular problem when D is small and the amplitude X frequency is large as described above.
【００１０】本発明は従来技術のかかる問題点に鑑み案
出されたもので、製作据付が容易で、振動体の捩り振動
にも対応でき、かつ制振能力の安定した高粘性ダンパを
提供しようとするものである。The present invention has been devised in view of the above problems of the prior art, and it is an object of the present invention to provide a highly viscous damper which is easy to manufacture and install, can cope with torsional vibration of a vibrating body, and has stable vibration damping capability. It is what
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するた
め、本発明の高粘性ダンパは振動体と固定体との間に介
設されて上記振動体の制振を行う高粘性ダンパであっ
て、上記固定体に固定される有底の外円筒と、振動体側
より上記外円筒に向って延出されるロッドと、上記ロッ
ド先端側に設けられ上記外円筒内に挿入される内円筒
と、上記ロッドと上記内円筒とを連結するリブと、上記
外円筒内に充填される高粘性体とよりなり、上記外円
筒、ロッド、および内円筒とは略同心に設けられてお
り、かつ上記外円筒はダンパの傾斜した取付角度に対応
して上記内円筒が高粘性体内に全体が没入した状態で作
動し得る量の高粘性体を収容し得る形状を有している。In order to achieve the above object, a high-viscosity damper according to the present invention is a high-viscosity damper which is interposed between a vibrating body and a fixed body and which damps the vibrating body. A bottomed outer cylinder fixed to the fixed body, a rod extending from the vibrating body side toward the outer cylinder, an inner cylinder provided on the rod tip side and inserted into the outer cylinder, A rib connecting the rod and the inner cylinder, and a high-viscosity body filled in the outer cylinder, wherein the outer cylinder, the rod, and the inner cylinder are provided substantially concentrically, and the outer cylinder. Has a shape capable of accommodating a high-viscosity body in an amount capable of operating in a state where the inner cylinder is wholly immersed in the high-viscosity body, corresponding to the inclined mounting angle of the damper.
【００１２】[0012]
【作用】上記構成によれば、振動体の振動に伴い外円筒
と内円筒が相対運動を行い、この運動は外円筒内に充填
される高粘性体の粘性せん断抵抗ｈより減衰される。特
に減衰力を生じさせる面が同心状の２つの円筒体の内外
面なので円筒体の軸心方向の振動減衰は勿論のことその
回転方向の振動も効果的に減衰させることができる。According to the above construction, the outer cylinder and the inner cylinder make a relative motion as the vibrating body vibrates, and this motion is damped by the viscous shear resistance h of the highly viscous body filled in the outer cylinder. In particular, since the surfaces that generate the damping force are the inner and outer surfaces of the two concentric cylinders, not only the vibrations in the axial direction of the cylinders but also the vibrations in the rotation direction can be effectively damped.
【００１３】さらに内円筒は高粘性体内に全体が完全に
没入した状態で振動しているので振動に伴って高粘性体
内に空気を巻き込むことがなく、ダンパは安定した制振
能力を発揮する。Further, since the inner cylinder vibrates in a state where the whole is completely immersed in the high-viscosity body, air is not entrained in the high-viscosity body due to the vibration, and the damper exhibits a stable vibration damping capability.
【００１４】[0014]
【実施例】以下本発明の一実施例について図面を参照し
つつ説明する。図１は本発明の高粘性ダンパの正面断面
図であり図２は図１のＡ−Ａ矢視図である。図において
１は斜張橋のケーブル等の振動体である。２は橋桁など
の固定体である。振動体１と固定体２との間に高粘性ダ
ンパ３が介設されていて、振動体の制振を行う。固定体
２には有底の外円筒が、底を兼ねる盲フランジ４ａによ
り固定されている。振動体１には取付金物１０を介して
ロッド５が振動体１の軸心に対して、略直角方向に取り
つけられている。ロッド５は上記外円筒４に向かって延
出しており、その先端側には内円筒６がリブ７を介して
取り付けられている。尚ロッド５と内円筒６とを連結す
るリブ７は本例では３枚である。内円筒６は外円筒４内
に挿入されている。外円筒４内には高粘性体８が充填さ
れている。高粘性体８は高分子有機化合物である。外円
筒４、ロッド５および内円筒６は略同心に設けられてい
る。９はそれらの軸心である。図に示すように内円筒６
は全体が高粘性体８中に没入している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front sectional view of a high-viscosity damper of the present invention, and FIG. 2 is a view taken along the line AA of FIG. In the figure, 1 is a vibrator such as a cable of a cable-stayed bridge. 2 is a fixed body such as a bridge girder. A high-viscosity damper 3 is provided between the vibrating body 1 and the fixed body 2 to suppress the vibration of the vibrating body. An outer cylinder having a bottom is fixed to the fixed body 2 by a blind flange 4a which also serves as a bottom. A rod 5 is attached to the vibrating body 1 via a mounting hardware 10 in a direction substantially perpendicular to the axis of the vibrating body 1. The rod 5 extends toward the outer cylinder 4, and an inner cylinder 6 is attached to the tip end side thereof via a rib 7. The number of ribs 7 connecting the rod 5 and the inner cylinder 6 is three in this example. The inner cylinder 6 is inserted into the outer cylinder 4. A highly viscous body 8 is filled in the outer cylinder 4. The highly viscous substance 8 is a high molecular weight organic compound. The outer cylinder 4, the rod 5, and the inner cylinder 6 are provided substantially concentrically. Reference numeral 9 is their axis. Inner cylinder 6 as shown
Is totally immersed in the high-viscosity body 8.
【００１５】図３は高粘性ダンパを傾斜して取り付けた
場合を示す正面断面図である。図に示すように高粘性体
８の自由表面は水平面なので、高粘性体８が外円筒４か
ら流出じないように、外円筒４はその直径との関係で十
分な長さとしなければならない。尚斜張橋のケーブルｃ
は塔Ｔに近いものほど立ち上がり角が大きいので高粘性
ダンパ３は大きく斜いた状態で使用することになるが、
実際には垂直から６０°（即ち水平から３０°）まで傾
けて使用する場合がある。FIG. 3 is a front sectional view showing a case where the high-viscosity damper is installed while being inclined. As shown in the figure, the free surface of the high-viscosity body 8 is a horizontal plane, so the outer cylinder 4 must be of a sufficient length in relation to its diameter so that the high-viscosity body 8 does not flow out of the outer cylinder 4. Cable of cable stayed bridge c
Since the closer to the tower T is, the larger the rising angle is, so the high-viscosity damper 3 will be used in a largely inclined state.
Actually, it may be used by inclining from the vertical to 60 ° (that is, from the horizontal to 30 °).
【００１６】以下本実施例の作用を説明する。振動体１
が斜張橋のケーブルｃである場合に、ケーブルｃは風等
に起用して振動する。この場合振動の方向はケーブル軸
心に対して直角方向即ちロッド５の軸心方向であるが、
わずかではあるがロッド５の回転方向の振動成分も存在
する。振動体１の振動にともないロッド５、リブ７を介
して振動が内円筒６に伝わり、内円筒６が振動する。一
方外円筒４は固定体２に固定されており不動であるので
外円筒４と内円筒６との間に主に軸方向の相対運動を行
うことになる。外円筒４内には高粘性体８が充填されて
いるので、内円筒６は高粘性体８の粘性せん断抵抗を受
ける。即ち内円筒６の外周面と外円筒４の内周面との面
で、先に図８を参照して説明した粘性せん断抵抗力Ｆが
発生し、振動体１の振動を減衰させる。回転方向の振動
も同様である。尚振動力Ｆは内円筒６の外周面の面積に
比例する。The operation of this embodiment will be described below. Vibrating body 1
Is the cable c of the cable-stayed bridge, the cable c oscillates by being applied to wind or the like. In this case, the direction of vibration is the direction perpendicular to the cable axis, that is, the axis of the rod 5,
There is also a slight vibration component in the rotation direction of the rod 5. With the vibration of the vibrating body 1, the vibration is transmitted to the inner cylinder 6 via the rod 5 and the rib 7, and the inner cylinder 6 vibrates. On the other hand, since the outer cylinder 4 is fixed to the fixed body 2 and is immovable, the outer cylinder 4 and the inner cylinder 6 mainly perform relative movement in the axial direction. Since the high-viscosity body 8 is filled in the outer cylinder 4, the inner cylinder 6 receives the viscous shear resistance of the high-viscosity body 8. That is, the viscous shearing resistance force F described above with reference to FIG. The same applies to vibration in the rotation direction. The vibration force F is proportional to the area of the outer peripheral surface of the inner cylinder 6.
【００１７】この際外円筒４と内円筒６とは同心になっ
ているので軸方向および回転方向の振動に対して両円筒
間の間隔の変化がなく一定の粘性せん断抵抗力を生じ
る。そしてダンパ据付時に両円筒の周方向の相対変位は
全く問題ないので、図５ないし図７に示す従来の平板状
のダンパに比して据付けが楽である。At this time, since the outer cylinder 4 and the inner cylinder 6 are concentric with each other, a constant viscous shearing resistance force is generated with no change in the distance between the two cylinders against vibrations in the axial direction and the rotational direction. Since there is no problem in the relative displacement of the two cylinders in the circumferential direction when the damper is installed, the installation is easier than that of the conventional flat damper shown in FIGS.
【００１８】さらに内円筒６は高粘性体８内に完全に没
入しているので、内円筒６が軸方向に振動しても、高粘
性体８内に空気を巻き込むおそれがなく、安定した減衰
効果が得られる。Further, since the inner cylinder 6 is completely immersed in the high-viscosity body 8, even if the inner cylinder 6 vibrates in the axial direction, there is no possibility of entraining air in the high-viscosity body 8 and stable damping. The effect is obtained.
【００１９】[0019]
【発明の効果】以上述べたように本発明の高粘性ダンパ
ば内外両円筒間の相対変位により、減衰作用が行われる
と共に内筒が高粘性体内に没入した状態で作用するので
以下の如き優れた効果がある。 （１）組立てや据付けが容易である。 （２）捩り振動も効果的に抑制できる。 （３）高粘性体内に空気の巻き込みがないので安定した
制振能力を発揮する。As described above, the high-viscosity damper of the present invention has a damping effect by the relative displacement between the inner and outer cylinders and acts in a state where the inner cylinder is immersed in the high-viscosity body. There is an effect. (1) Easy to assemble and install. (2) Torsional vibration can also be effectively suppressed. (3) Since there is no air entrapped in the highly viscous body, stable damping performance is exhibited.
【図１】本発明の高粘性ダンパの正面断面図である。FIG. 1 is a front sectional view of a high-viscosity damper of the present invention.
【図２】図１のＡ−Ａ矢視図である。FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;
【図３】本発明の高粘性ダンパを斜めに据付けた状態を
示す正面断面図である。FIG. 3 is a front sectional view showing a state in which the high-viscosity damper of the present invention is obliquely installed.
【図４】斜張橋を示す側面図である。FIG. 4 is a side view showing a cable-stayed bridge.
【図５】従来例を示し、ダンパの設置状態を示す側面図
である。FIG. 5 is a side view showing a conventional example and showing a damper installation state.
【図６】従来例を示し、ダンパの平断面図である。FIG. 6 is a plan sectional view of a damper showing a conventional example.
【図７】従来例を示し、ダンパの側断面図である。FIG. 7 is a side sectional view of a damper showing a conventional example.
【図８】粘性せん断抵抗力の発生メカニズムを示す説明
図である。FIG. 8 is an explanatory diagram showing a mechanism of generation of a viscous shearing resistance force.
【図９】固定板と振動板との間の高粘性体の自由表面の
動きを示す説明図である。FIG. 9 is an explanatory diagram showing the movement of the free surface of the high-viscosity body between the fixed plate and the vibration plate.
１ 振動体 ２ 固定体 ３ 高粘性ダンパ ４ 外円筒 ５ ロッド ６ 内円筒 ７ リブ ８ 高粘性体 1 Vibrating body 2 Fixed body 3 High viscosity damper 4 Outer cylinder 5 Rod 6 Inner cylinder 7 Rib 8 High viscosity body
フロントページの続き (72)発明者 吉永 俊一郎 東京都江東区毛利１丁目19番10号 石川島 播磨重工業株式会社江東事務所内Front page continuation (72) Inventor Shunichiro Yoshinaga 1-19-10 Mori, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Ltd. Koto Office
Claims (1)
振動体の制振を行う高粘性ダンパであって、上記固定体
に固定される有底の外円筒と、振動体側より上記外円筒
に向って延出されるロッドと、上記ロッド先端側に設け
られ上記外円筒内に挿入される内円筒と、上記ロッドと
上記内円筒とを連結するリブと、上記外円筒内に充填さ
れる高粘性体とよりなり、上記外円筒、ロッド、および
内円筒とは略同心に設けられており、かつ上記外円筒は
ダンパの傾斜した取付角度に対応して上記内円筒が高粘
性体内に全体が没入した状態で作動し得る量の高粘性体
を収容し得る形状を有していることを特徴とする高粘性
ダンパ。1. A highly viscous damper interposed between a vibrating body and a fixed body for damping the vibrating body, the outer cylinder having a bottom fixed to the fixed body, and a vibrating body side. A rod extending toward the outer cylinder, an inner cylinder provided on the tip side of the rod and inserted into the outer cylinder, a rib connecting the rod and the inner cylinder, and filling the outer cylinder. The outer cylinder, the rod, and the inner cylinder are provided substantially concentrically with each other, and the outer cylinder corresponds to the inclined mounting angle of the damper. A high-viscosity damper having a shape capable of accommodating a high-viscosity body in an amount capable of operating in a state where the whole is immersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08220495A JP3644510B2 (en) | 1995-04-07 | 1995-04-07 | High viscosity damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08220495A JP3644510B2 (en) | 1995-04-07 | 1995-04-07 | High viscosity damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08277874A true JPH08277874A (en) | 1996-10-22 |
| JP3644510B2 JP3644510B2 (en) | 2005-04-27 |
Family
ID=13767902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08220495A Expired - Fee Related JP3644510B2 (en) | 1995-04-07 | 1995-04-07 | High viscosity damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3644510B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334608B1 (en) * | 1996-07-26 | 2002-01-01 | Freyssinet International (Stup) | Device for damping vibration in a cable |
| FR2859260A1 (en) * | 2003-09-03 | 2005-03-04 | Freyssinet Int Stup | Vibrations damping device for e.g. guy wire, has piston type dampers around cable to absorb vibratory energy of stands and having ball and socket joints articulated respectively with collar and ball socket integrated with anchor tube |
| CN105765264A (en) * | 2013-10-23 | 2016-07-13 | 索列丹斯-弗莱西奈公司 | Device for damping vibrations in a cable |
-
1995
- 1995-04-07 JP JP08220495A patent/JP3644510B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334608B1 (en) * | 1996-07-26 | 2002-01-01 | Freyssinet International (Stup) | Device for damping vibration in a cable |
| FR2859260A1 (en) * | 2003-09-03 | 2005-03-04 | Freyssinet Int Stup | Vibrations damping device for e.g. guy wire, has piston type dampers around cable to absorb vibratory energy of stands and having ball and socket joints articulated respectively with collar and ball socket integrated with anchor tube |
| EP1512794A1 (en) * | 2003-09-03 | 2005-03-09 | Freyssinet International (STUP) | Device for damping of vibrations in cables and method therefor |
| CN105765264A (en) * | 2013-10-23 | 2016-07-13 | 索列丹斯-弗莱西奈公司 | Device for damping vibrations in a cable |
| CN105765264B (en) * | 2013-10-23 | 2018-01-12 | 索列丹斯-弗莱西奈公司 | Damp the device of rope vibrations |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3644510B2 (en) | 2005-04-27 |
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