JPS622036A - Device for absorbing vibration energy - Google Patents
Device for absorbing vibration energyInfo
- Publication number
- JPS622036A JPS622036A JP13890685A JP13890685A JPS622036A JP S622036 A JPS622036 A JP S622036A JP 13890685 A JP13890685 A JP 13890685A JP 13890685 A JP13890685 A JP 13890685A JP S622036 A JPS622036 A JP S622036A
- Authority
- JP
- Japan
- Prior art keywords
- shaft rod
- vibration energy
- cylindrical body
- plastic material
- energy absorbing
- 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
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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
- F16F1/44—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in compression
- F16F1/445—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in compression the spring material being contained in a generally closed space
-
- 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
- F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
- F16F2236/04—Compression
- F16F2236/045—Compression the spring material being generally enclosed
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、地震時等における構造物の振動を抑制するた
めｌこ材料の塑性特性を利用した振動エネルギ吸収装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a vibration energy absorbing device that utilizes the plastic properties of a material to suppress vibrations of a structure during an earthquake or the like.
地震力によって構造物が破壊されるのを防止するために
、従来より各種の振動エネルギ吸収装置が考えられてい
る。In order to prevent structures from being destroyed by seismic force, various types of vibration energy absorbing devices have been considered.
これらの振動エネルギ吸収装置は大別すると、流体ある
いは粘弾性体の粘性を利用した粘性ダンパ、材料同士の
摩擦を利用した摩擦ダンパ及び材料の塑性変形を利用し
た塑性ダンパなどがある。These vibration energy absorbing devices can be broadly classified into viscous dampers that utilize the viscosity of fluids or viscoelastic bodies, friction dampers that utilize friction between materials, and plastic dampers that utilize plastic deformation of materials.
これらのダンパにおいて、塑性ダンパは金属材料の塑性
変形を利用したものが多く、他のダンパに比べ、構造的
には簡素化されつるため、コストは小さくなると考えら
れている。塑性ダンパに使用される金属材としては、鉄
材、鉛あるいは鉛系合金などが用いられているが、特に
鉛系の材料は回層性にすぐれており、大変位をともなう
振動においても十分な追ずい性を有しており、有力な塑
性ダンパ部材である。Among these dampers, many plastic dampers utilize plastic deformation of metal materials, and are thought to be structurally simpler and simpler than other dampers, resulting in lower costs. The metal materials used in plastic dampers include iron, lead, and lead-based alloys. Lead-based materials in particular have excellent radial properties, and can be used to sufficiently suppress vibrations that involve large displacements. It has stiffness and is an effective plastic damper member.
塑性ダンパにおいて鉛系の材料のせん断変形による外層
性特性を利用したものの基本構造は第５図（ａ）に示す
様な部材間に固定した各固定板内に上記弾塑性材を埋め
込み連結したものがある。The basic structure of a plastic damper that utilizes the outer layer properties of lead-based materials due to shear deformation is as shown in Figure 5 (a), in which the above-mentioned elastic-plastic material is embedded and connected within each fixed plate fixed between members. There is.
これらの塑性ダンパは地震などにより構造物が振動し、
構造物のある部材間に相対変位が生じると、部材間に取
り付けられた塑性ダンパが強制変位を受ける事になる。These plastic dampers are used when structures vibrate due to earthquakes, etc.
When a relative displacement occurs between certain members of a structure, a plastic damper installed between the members is forced to undergo displacement.
この時、弾塑性材料が塑性変形をすると、その塑性変形
に必要な仕事量に等しいエネルギ損失が生じるため、結
果として部材間の振動エネルギを吸収し、構造物全体の
振動応答を減少させる。At this time, when the elastoplastic material undergoes plastic deformation, an energy loss equal to the amount of work required for the plastic deformation occurs, and as a result, the vibration energy between the members is absorbed, reducing the vibration response of the entire structure.
しかし、第５図（ａ）の様な構造であると、振動時に第
５図（ｂ）に示す様な変形をくりかえし受けると、弾塑
性材の固定金共面付近と中央部付近の曲げ、引張りの状
態が異るため、弾塑性材の形状はしだいに第５図（Ｃ）
の様に固定金共面根元付近かくびへ中間部がふくらむ様
になり、このため塑性変形に要する抵抗力がしだいに小
さくなり、エネルギ吸収能力が失われ来、最終的にはダ
ンパは破断に至る。この様な場合には塑性ダンパは機能
を失い、構造物の振動応答は再び増加し、ひいては構造
物の破損につながりかねない。However, if the structure shown in Fig. 5(a) is repeatedly subjected to deformation as shown in Fig. 5(b) during vibration, the elastoplastic material will bend near the coplanarity of the fixing metal and near the center. Due to the different tension conditions, the shape of the elastoplastic material gradually changes to that shown in Figure 5 (C).
As shown in the figure, the middle part bulges near the coplanar root of the fixed metal, and as a result, the resistance force required for plastic deformation gradually decreases, energy absorption ability is lost, and eventually the damper breaks. reach. In such a case, the plastic damper loses its function and the vibration response of the structure increases again, which can lead to damage to the structure.
第６図はこの欠点を無くすために弾塑性材料を容器内に
密封したものである。この様な構造であると、上記塑性
ダンパの様なくり返し荷重をうけても弾塑性材の破断は
起こらない。しかし、一方向の振動に対してしか、ダン
パ効果を期待できない。FIG. 6 shows a container in which an elastoplastic material is sealed in order to eliminate this drawback. With such a structure, the elastic-plastic material will not break even if it is subjected to repeated loads like the above-mentioned plastic damper. However, a damping effect can only be expected for vibrations in one direction.
本発明は上記の事情に鑑みてなされたもので、塑性ダン
パに取付けられた弾塑性材の周期的な塑性変形による弾
塑性材の破断をふせぎ、ダンパとしての機能をより長く
持続する事ができ、しかも水平、上下３方向の振動に対
して効果のある構造物の振動エネルギ吸収能力を提供す
ることにある。The present invention has been made in view of the above circumstances, and is capable of preventing the elastoplastic material attached to the plastic damper from breaking due to periodic plastic deformation, thereby maintaining its function as a damper for a longer period of time. Moreover, it is an object of the present invention to provide a vibration energy absorbing ability of a structure that is effective against vibrations in three directions, horizontal and vertical.
本発明によれば、相対変位が生じうる２つの構造物にお
いて、一方に取付られた容器の中に回層性を有する弾塑
性材を充填し、その中央に弾塑性材中の端部が軸径より
大きく、他端をもう一方の構造物に取付けられた軸棒を
設ける。According to the present invention, in two structures in which relative displacement may occur, a container attached to one is filled with an elastoplastic material having a circular layer property, and an end of the elastoplastic material is placed in the center of the container. A shaft rod is provided which is larger than the diameter and whose other end is attached to the other structure.
上記構成であると、地震時に構造物が振動し、構造物間
に水平、上下いずれの方向でも相対変位が生ずると本発
明の振動エネルギ吸収装置は、塑性変形をくり返し受け
る。この時、弾塑性材は容器によって囲まれているため
、変形を起こすことはない。With the above configuration, when the structure vibrates during an earthquake and relative displacement occurs between the structures in both the horizontal and vertical directions, the vibration energy absorbing device of the present invention repeatedly undergoes plastic deformation. At this time, since the elastoplastic material is surrounded by the container, no deformation occurs.
以下、本発明を図示の実施例を用いて説明する。 Hereinafter, the present invention will be explained using illustrated embodiments.
第１図において、振動エネルギ吸収装置の筒体１は、中
空円筒状とされ、その一方の端壁２には取付用のフラン
ジ３が設けられ、他端近傍の側壁からはその中央に位置
する軸棒４を取り囲むように適度の間隙５をおいてリン
グ上の突起６が設けられている。軸棒の内端には、軸棒
より大径の球状端７が設けられ、外端には取付用フラン
ジ８が設けられている。筒体１の内部には、筒体や軸棒
の材質より降伏応力の小さい弾塑性材９が充填されてい
る。In Fig. 1, a cylinder 1 of the vibration energy absorbing device is shaped like a hollow cylinder, and one end wall 2 thereof is provided with a mounting flange 3, and a side wall near the other end is located at the center of the cylinder. A protrusion 6 on a ring is provided so as to surround the shaft rod 4 with an appropriate gap 5 therebetween. The inner end of the shaft rod is provided with a spherical end 7 having a larger diameter than the shaft rod, and the outer end is provided with a mounting flange 8. The inside of the cylindrical body 1 is filled with an elastic-plastic material 9 having a lower yield stress than the materials of the cylindrical body and the shaft rod.
上記構成の本発明において、軸棒４が左右上下いずれか
の方向に動かされた時、球状端７は外層 □部材９
に塑性変形を生じさせながら移動する。In the present invention having the above configuration, when the shaft rod 4 is moved in any of the left, right, up and down directions, the spherical end 7 becomes the outer layer □ Member 9
It moves while causing plastic deformation.
次に、第２図に示した本発明装置の実際使用例について
、その作用、効果を説明する。第２図において、垂直部
、水平部を有する配管１０は、筒体１の端部のフランジ
２を建屋の壁面１１、床面に支持され、軸棒４の取付フ
ランジは、配管１０ ′の垂直部、水平部に取付け
た支持具１３．１４に結合する。地震時のゆれによって
配管１０が動かされると、軸棒４の球状端７は、弾塑性
材９に塑性変形を生じさせながら移動する。このとき、
弾 □塑性材は筒体１によって拘束されているため
に、変形、破断を起こすことはない。また、振動の方向
によらず、弾塑性材の塑性変形を生ずるため、振動のエ
ネルギを吸収することができる。Next, the operation and effects of an example of actual use of the device of the present invention shown in FIG. 2 will be explained. In FIG. 2, the piping 10 having a vertical part and a horizontal part has a flange 2 at the end of the cylinder 1 supported by the wall surface 11 and floor of the building, and the mounting flange of the shaft rod 4 is attached to the vertical part of the piping 10'. 13.14, which is attached to the horizontal part. When the piping 10 is moved due to shaking during an earthquake, the spherical end 7 of the shaft rod 4 moves while causing the elastic-plastic material 9 to undergo plastic deformation. At this time,
Elastic □Since the plastic material is restrained by the cylinder 1, it will not deform or break. Furthermore, since plastic deformation of the elastoplastic material occurs regardless of the direction of vibration, the energy of vibration can be absorbed.
本発明は上記の実施例に限定されるものではない。例え
ば、第３図、第４図に示すように、軸棒４の端部を角柱
状の端部１５としたり、球状端７に突起１６を設けるな
ど非軸対称な端部形状とすれば、軸棒回りの回転振動に
対しても同様の効果をあげることができる。The invention is not limited to the above embodiments. For example, as shown in FIGS. 3 and 4, if the end of the shaft 4 is made into a prismatic end 15 or the spherical end 7 is provided with a protrusion 16, the end shape is non-axisymmetric. A similar effect can be achieved with respect to rotational vibration around the shaft.
第１図は本発明の一実施例を示す断面図、第２図は、本
発明の使用状態を示す正面図、第３図。
第４図は本発明の他の実施例の主要部を示す図、第５図
、第６図は従来例を示す断面図である。
１・・・筒体、２・・・端壁、３・・・取付フランジ、
４・・・軸棒、５・・・間隙、６・・・リング状突起、
７・・・球状端、８・・・取付用フランジ、９・・・外
型性材、１０・・・配管、１１・・・壁面、１２・・・
床面、１３．１４・・・支持具、１５・・・角柱状端、
１６・・・突起、１７．１８・・・構造物、１９・・・
円筒、２０・・・軸棒。
代理人 弁理士 則 近 憲 佑（ほか１名）？
第１図
第２図
ど’７ 、−＋ 、−”ｆ７
（Ｃ）
第５図 −
第６図FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a front view showing the state of use of the invention, and FIG. FIG. 4 is a diagram showing the main parts of another embodiment of the present invention, and FIGS. 5 and 6 are sectional views showing a conventional example. 1... Cylindrical body, 2... End wall, 3... Mounting flange,
4... Shaft rod, 5... Gap, 6... Ring-shaped projection,
7... Spherical end, 8... Mounting flange, 9... Outer shape material, 10... Piping, 11... Wall surface, 12...
Floor surface, 13.14... Support, 15... Prismatic end,
16...Protrusion, 17.18...Structure, 19...
Cylinder, 20... shaft rod. Agent Patent attorney Kensuke Chika (and 1 other person)? Figure 1 Figure 2 Do'7, -+, -''f7 (C) Figure 5 - Figure 6
Claims (5)
、この筒体の開放端を貫通し、外端に取付部材を有し、
かつ内端に軸棒より外に広がった塊を有する軸棒と、筒
体および軸棒の材質より低い降伏応力を有する弾塑性材
を筒体と軸棒の間に充填したことを特徴とする振動エネ
ルギ吸収装置。(1) A cylindrical body that is open at one end and has a mounting member at the other end, and a cylindrical body that penetrates the open end of the cylindrical body and has a mounting member at the outer end,
The shaft rod has a mass extending outward from the shaft rod at the inner end, and an elastoplastic material having a lower yield stress than the materials of the cylinder and shaft rod is filled between the cylinder and the shaft. Vibration energy absorption device.
称物を有することを特徴とする特許請求の範囲第１項記
載の振動エネルギ吸収装置。(2) The vibration energy absorbing device according to claim 1, characterized in that the shaft rod has an axially symmetrical object such as a sphere, an ellipsoid, or a cylinder at the inner end thereof.
を特徴とする特許請求の範囲第１項記載の振動エネルギ
吸収装置。(3) The vibration energy absorbing device according to claim 1, characterized in that the shaft rod has a non-axisymmetric object such as a prism at the inner end thereof.
とした塊を有する特許請求の範囲第１項記載の振動エネ
ルギ吸収装置。(4) The vibration energy absorbing device according to claim 1, which has a non-axisymmetric mass by attaching a protrusion to an axially symmetrical object on the inner end of the shaft rod.
有する特許請求の範囲第１項記載の振動エネルギ吸収装
置。(5) The vibration energy absorbing device according to claim 1, which has at least one ring-shaped projection from the inner wall of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13890685A JPS622036A (en) | 1985-06-27 | 1985-06-27 | Device for absorbing vibration energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13890685A JPS622036A (en) | 1985-06-27 | 1985-06-27 | Device for absorbing vibration energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS622036A true JPS622036A (en) | 1987-01-08 |
Family
ID=15232896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13890685A Pending JPS622036A (en) | 1985-06-27 | 1985-06-27 | Device for absorbing vibration energy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622036A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785029A1 (en) * | 1998-10-23 | 2000-04-28 | Polyresine | Vibrating equipment is fixed on a support structure of a ship, oil drilling platform or industrial site using mineral-filled thermosetting epoxy resin between an anchoring system and the structure |
| KR101170988B1 (en) * | 2007-06-04 | 2012-08-08 | 삼성전자주식회사 | Vibration isolator for pipeline system |
| KR20190035015A (en) * | 2017-09-25 | 2019-04-03 | 주식회사 포스코건설 | Rack frame system using ball type isolation device |
| JP2019183981A (en) * | 2018-04-11 | 2019-10-24 | 住友ゴム工業株式会社 | Damping device |
-
1985
- 1985-06-27 JP JP13890685A patent/JPS622036A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785029A1 (en) * | 1998-10-23 | 2000-04-28 | Polyresine | Vibrating equipment is fixed on a support structure of a ship, oil drilling platform or industrial site using mineral-filled thermosetting epoxy resin between an anchoring system and the structure |
| KR101170988B1 (en) * | 2007-06-04 | 2012-08-08 | 삼성전자주식회사 | Vibration isolator for pipeline system |
| KR20190035015A (en) * | 2017-09-25 | 2019-04-03 | 주식회사 포스코건설 | Rack frame system using ball type isolation device |
| JP2019183981A (en) * | 2018-04-11 | 2019-10-24 | 住友ゴム工業株式会社 | Damping device |
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