JPS5989847A - Vibration limiter - Google Patents

Vibration limiter

Info

Publication number
JPS5989847A
JPS5989847A JP19767582A JP19767582A JPS5989847A JP S5989847 A JPS5989847 A JP S5989847A JP 19767582 A JP19767582 A JP 19767582A JP 19767582 A JP19767582 A JP 19767582A JP S5989847 A JPS5989847 A JP S5989847A
Authority
JP
Japan
Prior art keywords
shaft rod
protrusion
cylindrical body
protrusions
shaft
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
Application number
JP19767582A
Other languages
Japanese (ja)
Inventor
Hiroshi Niwa
博志 丹羽
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP19767582A priority Critical patent/JPS5989847A/en
Publication of JPS5989847A publication Critical patent/JPS5989847A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/12Vibration-dampers; Shock-absorbers using plastic deformation of members
    • F16F7/125Units with a telescopic-like action as one member moves into, or out of a second member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE:To obtain a larger limiting effect of vibration when a response becomes large amplitude at occurrence of an earthquake, by arranging a shaft rod disc moving in the shaft direction in a cylindrical body, both ends of which are closed, further providing protrusions, deformed by movement of the disc, in end faces of the cylindrical body. CONSTITUTION:Cylindrical protrusions 7, with a smaller yield load as compared with that of a shaft rod 3, are provided in the internal faces of end walls of a cylindrical body 1, and suitable clearances 8 are provided between a plate shaped end 5 provided in the internal end of the shaft rod 3 and said protrusions. When the shaft rod 3 is largely moved in either the left or the right direction, the plate shaped end 5 collides against the protrusion 7 to cause the protrusion 7 to generate elastic deformation. From this condition, if the shaft rod 3 is further moved in the same direction, the protrusion 7 yields to generate plastic deformation.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 本発明は地震時における配管その他の構築物の振動を抑
制する制振装置に係る。
DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a vibration damping device that suppresses vibrations of piping and other structures during an earthquake.

〔従来技術とその問題点〕[Prior art and its problems]

配管等のダンピングの小さい構造物は、地震時に大きな
振動を生じる。それを防止するため油圧制振装置を取付
けることが行なわれている。しかしながら、従来の制振
装置は、大振幅に対しても、小振幅に対しても制振特性
の変化はあまシな(、他界入力が大きヴれば、応答の振
幅も大きくなる欠点があった。
Structures with low damping, such as piping, generate large vibrations during an earthquake. To prevent this, hydraulic vibration damping devices are installed. However, with conventional damping devices, the damping characteristics do not change much for large amplitudes or small amplitudes (there is a drawback that the larger the other-world input is, the larger the response amplitude is). Ta.

〔発明の目的〕  ・ 本発明は上記の事情に基づきなされたもので、地震時に
応答が大振幅となつたとき、より大きな割振効果を有す
る割振装置を得ることを目的としている。
[Object of the Invention] - The present invention was made based on the above circumstances, and an object of the present invention is to obtain an allocation device that has a greater allocation effect when the response becomes large amplitude during an earthquake.

〔発明の概要〕[Summary of the invention]

本発明は、両端が閉塞された筒体内に、軸方向に移動す
る軸棒の内端に設けた円板を配し、かつ円板の移動によ
り変形する突起を筒体の端面に設けた制振装置である。
The present invention provides a control system in which a disk provided at the inner end of a shaft rod that moves in the axial direction is disposed inside a cylinder whose both ends are closed, and a protrusion deformed by the movement of the disk is provided on the end surface of the cylinder. It is a shaking device.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、配管等の構造物が振動するとき、取付
けられた軸棒が構造物の動きにしたがって移動し、軸棒
と対向−して設けられた突起に力を伝える。構造物の振
巾が大きくなると突起を塑性ルギは大きくなシ、したが
って、減衰が太きくなる効果を有する。
According to the present invention, when a structure such as a pipe vibrates, the attached shaft rod moves according to the movement of the structure and transmits force to the protrusion provided opposite to the shaft rod. As the amplitude of the structure increases, the plasticity of the protrusion increases, which has the effect of increasing damping.

〔発明の実施例〕[Embodiments of the invention]

以下、図面に基づき本発明の詳細な説明する。 Hereinafter, the present invention will be described in detail based on the drawings.

第1図において、制振装置の筒体1は、中空円筒状とさ
れ、その一方の端壁1aには、取付用のアイ2が設けら
れ、他方の端壁1bの中心には、軸棒3を貫通させる孔
」が設けられている。軸棒の内端には、軸棒よシ大径の
板状端5が設けられ、外端には取付用スイ6が設けられ
ている。
In FIG. 1, a cylinder 1 of the vibration damping device has a hollow cylindrical shape, and one end wall 1a thereof is provided with an eye 2 for attachment, and the other end wall 1b is provided with a shaft rod in the center. 3 is provided with a hole that passes through the hole. The inner end of the shaft rod is provided with a plate-shaped end 5 having a larger diameter than the shaft rod, and the outer end is provided with a mounting switch 6.

筒体1の端壁内面には、軸棒3に比べて降伏荷重の小さ
い円筒状の突起7が設けられており、軸棒の内端に設け
られた板状端5との間には、適度な隙間8が設けられて
いる。
A cylindrical projection 7 having a smaller yield load than the shaft rod 3 is provided on the inner surface of the end wall of the cylinder 1, and between it and a plate-shaped end 5 provided at the inner end of the shaft rod, A suitable gap 8 is provided.

上記構成の本発明において、軸棒3が左右何れかの方向
に大きく動かされた時、板状端5は、突起7と衝突し、
突起7に弾性変形を生じさせる。
In the present invention having the above configuration, when the shaft rod 3 is moved largely in either the left or right direction, the plate-like end 5 collides with the protrusion 7,
The protrusion 7 is caused to undergo elastic deformation.

この“状態からさらに軸棒3が同方向に動くと、突起7
は降伏し、塑性変形が生ずる。
If the shaft 3 further moves in the same direction from this state, the protrusion 7
yields and plastic deformation occurs.

次に、第2図に示し汚水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9は筒体1の端部のアイ2を壁面
10.床面11に設けたプラケッ) 12 、13に可
回動に取付けた本発明装置によって支持、されている。
Next, the functions and effects of the actual usage example of the sewage inventive device shown in FIG. 2 will be explained. In FIG. 2, the pipe 9, which has a vertical part and a horizontal part, connects the eye 2 at the end of the cylinder 1 to the wall surface 10. It is supported by the device of the present invention rotatably attached to plaques (12, 13) provided on the floor surface (11).

すなわち、前記のごとくして壁面、床面に取付けた本発
明装置の軸棒3の先端のアイ6をそれぞれ配管9の垂直
部、水平部に取付けた支持具14 、1.5に結合する
That is, the eye 6 at the tip of the shaft 3 of the apparatus of the present invention, which is attached to the wall and floor as described above, is connected to the supports 14 and 1.5 which are attached to the vertical and horizontal parts of the pipe 9, respectively.

地震時のゆれによって配管9が動かされる時、その振幅
が間隙8よシ小て5ければ、軸棒3は何ら拘束されず、
配管9は地震の振動につれ自由に動く。一方、振幅が間
隙8よシ大きく、突起7の変形が弾性範囲に留まるよう
な範囲にあれば、軸棒3の板状端5と突起7との衝突に
よって振動エネルギが消費されることによって減衰効果
が得られる。さらに配管9の振幅が大きくなり、突起7
が降伏する。このとき、突起7に生ずる変イビと力の関
係は、第3図に示すようになる。第3図において、軸棒
3の変位Jに従い、突起7に生ずる力Fは、初め中立点
16から接触点17に突起7が弾性変形することによっ
て降伏点18に、また、降伏することによって除荷点1
91で移行し、除荷によって再び20において非接触状
態となる。一般に構造材が第3図に示すような履歴を描
くときは、四角形゛17 、18 、19 、20の面
積で表わされるエネルギが消費されることが知られてい
る。したがって配管9の振幅が大きくなると突起7が降
伏することによって減衰効果が得られる。
When the piping 9 is moved by shaking during an earthquake, if the amplitude is smaller than the gap 8 by 5, the shaft rod 3 is not restrained at all,
The pipe 9 moves freely as the earthquake vibrates. On the other hand, if the amplitude is larger than the gap 8 and the deformation of the protrusion 7 remains within the elastic range, vibration energy is consumed by the collision between the plate-like end 5 of the shaft rod 3 and the protrusion 7, resulting in damping. Effects can be obtained. Furthermore, the amplitude of the pipe 9 increases, and the protrusion 7
surrenders. At this time, the relationship between the force and the deflection generated on the protrusion 7 is as shown in FIG. In FIG. 3, according to the displacement J of the shaft rod 3, the force F generated on the protrusion 7 is first elastically deformed from the neutral point 16 to the contact point 17 to reach the yield point 18, and then removed by yielding. Loading point 1
The state shifts to 91 and returns to the non-contact state at 20 due to unloading. It is generally known that when a structural material traces a history as shown in FIG. 3, energy represented by the areas of rectangles 17, 18, 19, and 20 is consumed. Therefore, when the amplitude of the pipe 9 increases, the protrusion 7 yields and a damping effect is obtained.

以上、本発明をその具体例について説明したが、本発明
は、これら特定の実施例に限定されるものでなく、本発
明の精神を逸脱しないで幾多の変化、変形がなし得るこ
とは勿論である。
Although the present invention has been described above with reference to specific examples, the present invention is not limited to these specific examples, and it goes without saying that many changes and modifications can be made without departing from the spirit of the present invention. be.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一笑施例を示す断面図、第2図は本発
明の使用状態を示す正面図、第3図は本発明の詳細な説
明するためのカー変位関係を示す図である。 1・・・筒体、3・・・軸棒、5・・・板状端、7・・
・突起。
FIG. 1 is a cross-sectional view showing a simple embodiment of the present invention, FIG. 2 is a front view showing the usage state of the present invention, and FIG. 3 is a diagram showing the Kerr displacement relationship for explaining the present invention in detail. . DESCRIPTION OF SYMBOLS 1... Cylindrical body, 3... Shaft rod, 5... Plate-shaped end, 7...
·protrusion.

Claims (1)

【特許請求の範囲】[Claims] 一端に取付部材を有する筒体と、この筒体の他端を貫通
し、外端に取付部材を有し、かつ、内端に円板を有する
軸棒と、この軸棒の移動量が予め定めた値より大となり
た時、軸棒と接触し、軸棒によって加えられる力によっ
て変形する突起とを上表えたことを特徴とする割振装置
A cylindrical body having a mounting member at one end, a shaft rod that passes through the other end of the cylinder body, has a mounting member at the outer end, and has a disc at the inner end, and the amount of movement of this shaft rod is determined in advance. An allocation device characterized by having a protrusion on the top that contacts the shaft rod and deforms due to the force applied by the shaft rod when the value exceeds a predetermined value.
JP19767582A 1982-11-12 1982-11-12 Vibration limiter Pending JPS5989847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19767582A JPS5989847A (en) 1982-11-12 1982-11-12 Vibration limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19767582A JPS5989847A (en) 1982-11-12 1982-11-12 Vibration limiter

Publications (1)

Publication Number Publication Date
JPS5989847A true JPS5989847A (en) 1984-05-24

Family

ID=16378464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19767582A Pending JPS5989847A (en) 1982-11-12 1982-11-12 Vibration limiter

Country Status (1)

Country Link
JP (1) JPS5989847A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795793A1 (en) * 1999-07-01 2001-01-05 Snecma Energy absorbing linkage for gas turbine mounting in aircraft has female casing defining chamber traversed by rod
EP1291545A1 (en) * 2001-09-11 2003-03-12 Eurocopter Energy absorbing connecting link and helicopter with such connecting links used as suspending links of a transmission unit
WO2009074777A1 (en) * 2007-12-12 2009-06-18 Cellbond Limited Damper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795793A1 (en) * 1999-07-01 2001-01-05 Snecma Energy absorbing linkage for gas turbine mounting in aircraft has female casing defining chamber traversed by rod
EP1291545A1 (en) * 2001-09-11 2003-03-12 Eurocopter Energy absorbing connecting link and helicopter with such connecting links used as suspending links of a transmission unit
FR2829546A1 (en) * 2001-09-11 2003-03-14 Eurocopter France ENERGY ABSORPTION CONNECTION BAR, AND ITS APPLICATION AS A TRANSMISSION BOX SUSPENSION BAR FOR A GIRAVION
US6776370B2 (en) 2001-09-11 2004-08-17 Eurocopter Energy-absorbing connecting strut for use as a gearbox suspension strut for rotary wing aircraft
WO2009074777A1 (en) * 2007-12-12 2009-06-18 Cellbond Limited Damper

Similar Documents

Publication Publication Date Title
KR100269034B1 (en) Self tuning type vibration damper
JPS6235537B2 (en)
JPS5989847A (en) Vibration limiter
RU2546379C1 (en) Kochetov's bumper with dry friction
JPS62220734A (en) Vibrational energy absorbing device
JPH06159897A (en) Anti-vibration supporting device for compressor used in refrigerator
JPH028528A (en) Vibration damper device
EP0118887A3 (en) Supporting device for elastically supporting a mass and for damping vibrations
JPH0316737Y2 (en)
JPH03249440A (en) Vibration isolator
JPS61201946A (en) Vibration insulator
JPH0323004Y2 (en)
JPH0316739Y2 (en)
JPH0222513Y2 (en)
KR100243594B1 (en) Dynamic damper for absorbing engine vibration
JPH0346126Y2 (en)
JPH057908Y2 (en)
JPH0649036Y2 (en) Anti-vibration structure of microphone
JPH10196716A (en) Active damping device
KR20020012787A (en) Restrained Stroke Active Tuned Mass Damper Device in Structures
Fujita et al. Fundamental study of active-passive mass damper using XY-motion mechanism and hydraulic actuator for vibration control of tall buildings.
JP2553360Y2 (en) Liquid-filled mount
SU1163072A1 (en) Vibration damper
JPH09210123A (en) Base isolation device for light load
JPH0515631Y2 (en)