JP2012082880A - Vibration damping structure - Google Patents

Vibration damping structure Download PDF

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Publication number
JP2012082880A
JP2012082880A JP2010228137A JP2010228137A JP2012082880A JP 2012082880 A JP2012082880 A JP 2012082880A JP 2010228137 A JP2010228137 A JP 2010228137A JP 2010228137 A JP2010228137 A JP 2010228137A JP 2012082880 A JP2012082880 A JP 2012082880A
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hollow body
vibration
vibration damping
promoting member
motion promoting
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Kazuki Tsugibashi
一樹 次橋
Akio Sugimoto
明男 杉本
Koichi Honke
浩一 本家
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Kobe Steel Ltd
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Kobe Steel Ltd
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Priority to JP2010228137A priority Critical patent/JP2012082880A/en
Priority to PCT/JP2011/073185 priority patent/WO2012046834A1/en
Priority to CN201180037217.4A priority patent/CN103038539B/en
Publication of JP2012082880A publication Critical patent/JP2012082880A/en
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    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/363—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
    • F16F7/015—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand the particles being spherical, cylindrical or the like
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a vibration damping structure capable of obtaining sufficient vibration damping effect even for vibration having small amplitude by promoting movement of powder bodies in a hollow body when vibration occurs.SOLUTION: The vibration damping structure is configured by providing a vibration damping member 2 to a structure 1 to be a vibration damping target. The vibration damping member 2 includes: the hollow body 3; the powder bodies 4 filled into the hollow body 3 with a space 6 left therein partially and moving within the hollow body 3 when the structure 1 vibrates; and a movement promotion member 5 provided within the hollow body 3 and having a protruding curved surface 5a for promoting the movement of the powder bodies 4 when the structure vibrates.

Description

本発明は、モータや発電機のステータやロータ、或いは減速機などの歯車や回転シャフト、自動車等輸送機器の梁部材、更には、建築物の躯体構造、大型機械構造やその固定構造物等の振動が発生する構造体等に有効に用いることができる制振構造に関するものである。   The present invention relates to gears and rotating shafts of motors and generators, stators and rotors of speed reducers, beam members of transportation equipment such as automobiles, and further to building structures of buildings, large machine structures and their fixed structures, etc. The present invention relates to a damping structure that can be effectively used for a structure or the like that generates vibration.

モータや発電機のステータやロータ、或いは減速機などの歯車や回転シャフト、自動車等輸送機器の梁部材、更には、建築物の躯体構造、大型機械構造やその固定構造物等の振動が発生する構造体に、粒状や粉状の粉粒体を中空状の閉空間に充填した制振部材を設けることで、構造体が振動することを抑止しようとする制振技術は既に開発されている。この技術は、従来から幅広く用いられていた粘弾性体等の制振材や動吸振器などを用いる技術では対処できない分野で、実際に採用されている。また、このような技術は、特許文献１、特許文献２等としても提案されている。   Vibrations occur in the stators and rotors of motors and generators, gears and rotating shafts of speed reducers, beam members of transportation equipment such as automobiles, as well as building frame structures, large machine structures and their fixed structures. A damping technology for suppressing vibration of the structure has already been developed by providing the structure with a damping member in which a granular or powdery granular material is filled in a hollow closed space. This technique is actually employed in a field that cannot be dealt with by a technique using a vibration damping material such as a viscoelastic body or a dynamic vibration absorber that has been widely used. Such a technique is also proposed as Patent Document 1, Patent Document 2, and the like.

特許文献１記載の技術は、モータに、粉粒体材料を充填した制振部材を固定することで、様々な周波数やレベル特性のモータ振動の低減に適用しようとした技術である。また、特許文献２記載の技術は、タイミングベルトと噛み合って動力を伝達するタイミングプーリに空洞を設け、その空洞内に粉粒体を移動可能に配設することで、タイミングベルトとプーリの噛み合いによる振動を減衰させ、それによって発生する騒音を低減させようという技術である。   The technique described in Patent Document 1 is a technique that is intended to be applied to the reduction of motor vibration of various frequencies and level characteristics by fixing a damping member filled with a granular material to a motor. The technique described in Patent Document 2 is based on the meshing of the timing belt and the pulley by providing a cavity in the timing pulley that meshes with the timing belt and transmits power, and disposes the powder particles in the cavity. This is a technique for attenuating vibration and reducing noise generated thereby.

これらの技術を採用することで、確かに制振効果を得ることはできるが、粉粒体による制振効果は非線形特性を有するという特徴があり、単に粉粒体を中空部に充填するだけでは、条件によれば確実に制振効果を得ることができないという問題を併せ持っていた。   By adopting these technologies, it is possible to surely obtain the vibration damping effect, but the vibration damping effect by the granular material has a characteristic that it has non-linear characteristics. Simply filling the granular material into the hollow part In addition, according to the conditions, there was a problem that the vibration control effect could not be obtained reliably.

その問題は、小さい振幅に対しては十分な制振効果を得ることができないという問題である。粉粒体による制振効果は、粉粒体が振動により運動し、粉粒体同士、或いは、粉粒体が中空部の内面に、衝突、変形、摩擦することによって発現されるのであるが、特に鉛直方向の振動を対象にする場合、粉粒体が運動するには重力に抵抗する必要があり、制振効果を得るためには１Ｇ以上の振動加速度が必要という問題があった。   The problem is that a sufficient damping effect cannot be obtained for a small amplitude. The damping effect by the granular material is expressed when the granular material moves by vibration, and the granular materials collide, deform, or rub against the inner surface of the hollow part, In particular, when the vibration in the vertical direction is targeted, there is a problem that it is necessary to resist gravity in order for the granular material to move, and vibration acceleration of 1 G or more is necessary to obtain the vibration damping effect.

特開２０００−４６１０３号公報JP 2000-46103 A 特開平６−２８８４６３号公報JP-A-6-288463

本発明は、これら従来の問題を解決せんとしてなされたもので、振動発生時の中空体内での粉粒体の運動を促進することで、振幅が小さい振動に対しても、十分な制振効果を得ることができる制振構造を提供することを課題とするものである。   The present invention has been made as a solution to these conventional problems, and by promoting the movement of the granular material in the hollow body at the time of vibration generation, a sufficient damping effect even for vibration with a small amplitude. It is an object of the present invention to provide a vibration control structure that can obtain the above.

請求項１記載の発明は、制振対象となる構造体に制振部材を設けてなる制振構造であって、前記制振部材は、中空体と、前記中空体内に一部空間を残して充填され前記構造体が振動を受けた際に前記中空体内で運動する粉粒体と、前記中空体内に設けられ振動時に前記粉粒体の運動を促進する凸状の曲面を有する運動促進部材とから構成されることを特徴とする制振構造である。   The invention according to claim 1 is a vibration damping structure in which a vibration damping member is provided on a structure to be a vibration damping object, and the vibration damping member includes a hollow body and a part of the hollow body leaving a space. A powder granule that is filled and moves in the hollow body when the structure is vibrated, and a motion promoting member that is provided in the hollow body and has a convex curved surface that promotes the movement of the powder during vibration. It is a vibration control structure characterized by comprising.

請求項２記載の発明は、前記運動促進部材は、円形断面を有することを特徴とする請求項１記載の制振構造である。   The invention according to claim 2 is the vibration damping structure according to claim 1, wherein the motion promoting member has a circular cross section.

請求項３記載の発明は、前記運動促進部材は、球状或いは半球状であることを特徴とする請求項２記載の制振構造である。   The invention according to claim 3 is the vibration damping structure according to claim 2, wherein the motion promoting member is spherical or hemispherical.

請求項４記載の発明は、前記運動促進部材は中空状であり、その内部にも粉粒体が充填されていることを特徴とする請求項１乃至３のいずれかに記載の制振構造である。   According to a fourth aspect of the present invention, in the vibration damping structure according to any one of the first to third aspects, the motion promoting member has a hollow shape and is filled with powder particles. is there.

請求項５記載の発明は、前記運動促進部材は、前記中空体の内部に固定されていることを特徴とする請求項１乃至４のいずれかに記載の制振構造である。   A fifth aspect of the present invention is the vibration damping structure according to any one of the first to fourth aspects, wherein the motion promoting member is fixed inside the hollow body.

請求項６記載の発明は、制振対象となる前記構造体は円筒形状のステータであって、前記中空体は前記ステータの端面に設けられた円環状で且つ扁平形状の中空体であり、複数に区切られた各中空空間内に、夫々前記粉粒体が充填されていると共に前記運動促進部材が設けられていることを特徴とする請求項１乃至５のいずれかに記載の制振構造である。   According to a sixth aspect of the present invention, the structure to be controlled is a cylindrical stator, and the hollow body is an annular and flat hollow body provided on an end surface of the stator. The vibration damping structure according to any one of claims 1 to 5, wherein each of the hollow spaces divided into two is filled with the powder and the motion promoting member is provided. is there.

本発明の請求項１記載の制振構造によると、振動を受けた際に粉粒体が運動すると、それら粉粒体は運動促進部材の凸状の曲面に衝突して、夫々の粉粒体は様々な方向の力を受け、様々な方向に向けて跳ね返るので、運動を更に促進させられる。その結果、中空体内部に単に粉粒体を充填した場合と比較して、粉粒体同士、或いは、粉粒体と中空部の内面の衝突、弾性変形、摩擦がより激しくなり、その振動エネルギーの吸収もより大きくなる。従って、振動加速度が１Ｇ未満の小さな振動であっても、制振効果を確実に発現することができる。   According to the vibration damping structure of the first aspect of the present invention, when the powder particles move when subjected to vibration, the powder particles collide with the convex curved surface of the motion promoting member, and the respective powder particles. Because it receives forces in various directions and bounces back in various directions, it can further accelerate the movement. As a result, compared to the case where the powder is simply filled inside the hollow body, the collision, elastic deformation, friction between the powder particles or between the powder and the inner surface of the hollow part becomes more intense, and the vibration energy The absorption of is also greater. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.

本発明の請求項２記載の制振構造によると、運動促進部材は円形断面を有するため、振動を受けた際の、粉粒体同士、或いは、粉粒体と中空部の内面の衝突、弾性変形、摩擦がより激しくなり、その振動エネルギーの吸収もより大きくなる。従って、振動加速度が１Ｇ未満の小さな振動であっても、制振効果を確実に発現することができる。   According to the vibration damping structure of the second aspect of the present invention, since the motion promoting member has a circular cross section, when subjected to vibration, collision between the powder particles or between the powder particles and the inner surface of the hollow portion, elasticity Deformation and friction become more intense, and the absorption of vibration energy becomes larger. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.

本発明の請求項３記載の制振構造によると、運動促進部材の形状が球状或いは半球状であるため、中空体内部に充填された粉粒体に対して、構造体の振動方向とは異なる更に様々な方向に確実に振動を伝達することができ、より確実に安定した制振効果を発現することができる。   According to the vibration damping structure of the third aspect of the present invention, since the shape of the motion promoting member is spherical or hemispherical, the vibration direction of the structure is different from the granular material filled in the hollow body. Furthermore, vibrations can be reliably transmitted in various directions, and a more stable vibration control effect can be exhibited.

本発明の請求項４記載の制振構造によると、中空状の運動促進部材の内部にも粉粒体が充填されているので、その粉粒体が運動促進部材の内面にも衝突してより激しく運動することになり、より確実に安定した制振効果を発現することができる。   According to the vibration damping structure of the fourth aspect of the present invention, since the powder body is filled in the hollow motion promoting member, the powder body also collides with the inner surface of the motion promoting member. It will exercise violently, and a more stable vibration control effect can be expressed.

本発明の請求項５記載の制振構造によると、運動促進部材が中空体の内部に固定されているため、運動促進部材が制振効果を中空体に伝える働きをし、より安定した制振効果を発現することができる。   According to the vibration damping structure according to claim 5 of the present invention, since the motion promoting member is fixed inside the hollow body, the motion promoting member functions to transmit the vibration damping effect to the hollow body, thereby achieving more stable vibration damping. An effect can be expressed.

本発明の請求項６記載の制振構造によると、モータや発電機のステータで発生する振動に対して、確実に制振効果を発現させることができる。   According to the vibration damping structure of the sixth aspect of the present invention, the vibration damping effect can be surely expressed with respect to the vibration generated in the stator of the motor or the generator.

本発明の実施形態を示すもので、構造体の側面に制振部材を取り付けた一実施形態の縦断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a longitudinal sectional view of an embodiment in which a damping member is attached to a side surface of a structure. 本発明の実施形態を示すもので、構造体の側面に制振部材を取り付けた異なる実施形態の縦断面図である。The embodiment of the present invention is shown and it is a longitudinal section of a different embodiment which attached a damping member to the side of a structure. 本発明の実施形態を示すもので、構造体の内部に制振部材を内蔵した一実施形態の縦断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is a longitudinal sectional view of an embodiment in which a damping member is built in a structure. 本発明の実施形態を示すもので、構造体の内部に制振部材を内蔵した異なる実施形態の縦断面図である。The embodiment of the present invention is shown and it is a longitudinal section of a different embodiment in which a damping member is built in the structure. 本発明の実施形態を示すもので、ステータの端面に制振部材を取り付けた一実施形態の制振部材を示す縦断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a longitudinal sectional view showing a vibration damping member of an embodiment in which a vibration damping member is attached to an end face of a stator. 本発明の実施形態を示すもので、ステータの端面に制振部材を取り付けた状態を示す斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, showing an embodiment of the present invention, is a perspective view showing a state where a damping member is attached to an end face of a stator.

以下、本発明を添付図面に示す実施形態に基づいて更に詳細に説明する。   Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.

まず、制振対象となる構造体１の振動方向と平行する側面に制振部材２を取り付けた実施形態について、図１および図２に基づいて説明する。尚、本明細書では、制振対象となる構造体１の外部に制振部材２を設ける実施形態については、構造体１の側面に制振部材２を取り付けた実施形態についてのみ詳細に説明するが、制振部材２を、構造体１の上面等その他の部位に取り付けても制振効果を発現できることは勿論である。   First, an embodiment in which a damping member 2 is attached to a side surface parallel to the vibration direction of the structure 1 to be controlled will be described with reference to FIGS. 1 and 2. In the present specification, the embodiment in which the damping member 2 is provided outside the structure 1 to be damped will be described in detail only for the embodiment in which the damping member 2 is attached to the side surface of the structure 1. However, it is needless to say that the damping effect can be exhibited even if the damping member 2 is attached to other parts such as the upper surface of the structure 1.

図１に示す実施形態に係る制振部材２は、直方体形状の容器でなる中空体３と、その中空体３内に一部空間６を残して充填され、構造体１が振動を受けた際に中空体３内で運動する粉粒体４と、中空体３内に粉粒体４で被覆されるようにして設けられ、振動時に粉粒体４の運動を促進する断面円形で中空状の運動促進部材５を有して構成されている。   The vibration damping member 2 according to the embodiment shown in FIG. 1 is filled with a hollow body 3 formed of a rectangular parallelepiped container, and leaving a partial space 6 in the hollow body 3, and the structure 1 is subjected to vibration. And a granular body 4 that moves in the hollow body 3 and a hollow body 3 that is provided so as to be covered with the granular body 4 in the hollow body 3 and that promotes the movement of the granular body 4 during vibration. The movement promoting member 5 is provided.

これら制振部材２を構成する中空体３、粉粒体４および運動促進部材５は、鋼、アルミニウムなどの金属、プラスチック、ゴムなどの樹脂、ガラス、焼結体などのセラミックス等で形成されている。制振対象である構造体１がモータのような磁力を発するものである場合には、粉粒体４は非磁性体で形成されていることが望ましい。また、粉粒体４は、粉状体或いは粒状体のいずれであっても良い。この粉粒体４は、中空体３内に一部空間６を残して充填されているため、中空体３内で運動可能であるが、中空体３内の容積の７５％前後を占めるようにして充填することが、粉粒体４を中空体３内でより効率良く運動させることができる点で好ましい。   The hollow body 3, the granular material 4 and the motion promoting member 5 constituting the vibration damping member 2 are formed of a metal such as steel or aluminum, a resin such as plastic or rubber, a ceramic such as glass or a sintered body, or the like. Yes. In the case where the structure 1 that is the object of vibration suppression is one that generates a magnetic force such as a motor, it is desirable that the granular material 4 be formed of a non-magnetic material. The powder body 4 may be either a powder body or a granular body. Since this granular material 4 is filled in the hollow body 3 leaving a part of the space 6, it can move in the hollow body 3, but occupies about 75% of the volume in the hollow body 3. It is preferable that the powder particles 4 can be moved more efficiently in the hollow body 3.

図１に示す実施形態では、運動促進部材５は断面円形で中空状であると説明したが、その形状は、表面に凸状の曲面５ａが形成されておれば、球形、円筒形のいずれであっても良く、更には、半球形、円錐形等の形状とすることも可能である。また、運動促進部材５の断面形状は必ずしも真円形でなくても良く、例えば楕円形、或いは、多面体であっても球形に近い形状であればサッカーボールのような形状のものであれば構わない。本発明では、サッカーボールのような形状の多面体も凸状の曲面５ａを有するものとする。尚、運動促進部材５は中空のものには限らず、内部空間を有さない中実のものであっても構わない。   In the embodiment shown in FIG. 1, the motion promoting member 5 has been described as having a circular cross section and a hollow shape. However, the shape of the motion promoting member 5 may be either spherical or cylindrical as long as the convex curved surface 5a is formed on the surface. Further, it may be a hemispherical shape, a conical shape, or the like. Further, the cross-sectional shape of the motion promoting member 5 does not necessarily have to be a perfect circle. For example, an elliptical shape or a polyhedron shape having a shape close to a spherical shape may be used as long as the shape is a soccer ball. . In the present invention, a polyhedron shaped like a soccer ball also has a convex curved surface 5a. The motion promoting member 5 is not limited to a hollow member, and may be a solid member having no internal space.

この運動促進部材５は、中空体３の内部に固定されていることが好ましく、また、運動促進部材５が半球形や円錐形の場合は、中空体３の内面から内側に***するような中空体３の内壁面と一体のもの、すなわち、中空体３の内壁面を構成しているものであっても構わない。尚、図１に示す実施形態は、運動促進部材５が中空体３に固定された実施形態を示しているが、運動促進部材５は粉粒体４と同様に、構造体１が振動を受けた際に中空体３内で運動するもの、すなわち、中空体３に固定されていないものであっても構わない。   The motion promoting member 5 is preferably fixed inside the hollow body 3, and when the motion promoting member 5 has a hemispherical shape or a conical shape, it is a hollow that protrudes inward from the inner surface of the hollow body 3. It may be integrated with the inner wall surface of the body 3, that is, may constitute the inner wall surface of the hollow body 3. The embodiment shown in FIG. 1 shows an embodiment in which the motion promoting member 5 is fixed to the hollow body 3, but the motion promoting member 5 is subjected to vibration as in the case of the granular material 4. It may be one that moves in the hollow body 3 at the time, that is, one that is not fixed to the hollow body 3.

この図１に示す実施形態の場合、制振対象となる構造体１に両方向矢印で示すような上下方向の振動が発生すると、中空体３および運動促進部材５も、構造体１と同様に上下に振動する。運動促進部材５の凸状の曲面５ａに衝突した粉粒体４は、中空体３内で様々な方向に運動するようになり、更には、中空体３の内面および運動促進部材５の曲面５ａに繰り返し衝突した粉粒体４の運動はより激しくなる。   In the case of the embodiment shown in FIG. 1, when vertical vibrations as indicated by double-headed arrows occur in the structure 1 to be controlled, the hollow body 3 and the motion promoting member 5 are also Vibrate. The granular material 4 that has collided with the convex curved surface 5 a of the motion promoting member 5 moves in various directions within the hollow body 3, and further, the inner surface of the hollow body 3 and the curved surface 5 a of the motion promoting member 5. The movement of the granular material 4 that repeatedly collided with each other becomes more intense.

中空体３内で様々な方向に激しく動く粉粒体４の運動により、構造体１の振動エネルギーは、粒子（粉粒体４）、中空体３、運動促進部材５の弾性変形や、それらの互いの摩擦、衝突などにより散逸され、制振作用が発現して、構造体１の振動は抑制されることとなる。   Due to the motion of the granular material 4 that moves violently in various directions in the hollow body 3, the vibration energy of the structure 1 becomes elastic deformation of the particles (the granular material 4), the hollow body 3, and the motion promoting member 5, They are dissipated due to mutual friction, collision, etc., and a damping action is developed, so that the vibration of the structure 1 is suppressed.

尚、図１に示す実施形態は、運動促進部材５が断面円形で中空状であるが、表面に凸状の曲面５ａさえ形成されておれば、運動促進部材５は中空状ではなく、断面円弧状、断面Ｓ字状のいわゆる薄片状であっても構わない。運動促進部材５がこのような形状であっても、衝突した粉粒体４が様々な方向に運動するようになり、制振作用を効率的に発現することができる。   In the embodiment shown in FIG. 1, the motion promoting member 5 has a circular cross section and is hollow. However, as long as the convex curved surface 5a is formed on the surface, the motion promoting member 5 is not hollow and has a circular cross section. A so-called flake shape having an arc shape or an S-shaped cross section may be used. Even if the movement promoting member 5 has such a shape, the collided powder particles 4 move in various directions, and the vibration damping action can be efficiently expressed.

図２に示す実施形態は、図１に示す実施形態と同様に、直方体形状の容器でなる中空体３と、その中空体３内に一部空間６を残して充填され、構造体１が振動を受けた際に中空体３内で運動する粉粒体４と、中空体３内に粉粒体３で被覆されるようにして設けられ、振動時に粉粒体４の運動を促進する断面円形で中空状の運動促進部材５を有して構成されているが、図２に示す実施形態では、更に、断面円形の運動促進部材５の内部空間にも、粉粒体４が充填されている。   The embodiment shown in FIG. 2 is filled with a hollow body 3 made of a rectangular parallelepiped container and leaving a partial space 6 in the hollow body 3 in the same manner as the embodiment shown in FIG. The granular material 4 that moves in the hollow body 3 when it receives, and the circular shape that is provided so as to be covered with the granular material 3 in the hollow body 3 and promotes the movement of the granular material 4 during vibration However, in the embodiment shown in FIG. 2, the internal space of the motion promoting member 5 having a circular cross section is also filled with the granular material 4. .

尚、運動促進部材５の内部が、中空体３の内部と連通している場合、例えば、中空体３が円筒形で一端側が中空体３の内面と接触していない場合等、いわゆる開放形の場合は、粉粒体４は、中空体３内に一部空間６を残して充填されておれば、振動時に粉粒体４が、中空体３内と同時に運動促進部材５の内部でも運動できる。しかし、運動促進部材５の内部が、中空体３の内部と連通していない場合、例えば、運動促進部材５が球形の場合等、いわゆる閉鎖形の場合は、運動促進部材５の内部は、中空体３の内部とは仕切られるため、粉粒体４を運動促進部材５の内部でも運動させるためには粉粒体４は、運動促進部材５の内部に一部空間６ａを残して充填する必要がある。   In addition, when the inside of the motion promoting member 5 communicates with the inside of the hollow body 3, for example, when the hollow body 3 is cylindrical and one end side is not in contact with the inner surface of the hollow body 3, a so-called open type In this case, if the granular material 4 is filled in the hollow body 3 leaving a part of the space 6, the granular material 4 can move in the movement promoting member 5 simultaneously with the hollow body 3 during vibration. . However, when the inside of the motion promoting member 5 is not in communication with the inside of the hollow body 3, for example, when the motion promoting member 5 is a so-called closed type or the like, the inside of the motion promoting member 5 is hollow. Since it is partitioned from the inside of the body 3, in order to move the granular material 4 even inside the motion promoting member 5, the granular material 4 needs to be filled while leaving a partial space 6 a inside the motion promoting member 5. There is.

この図２に示す実施形態では、粉粒体４が、中空体３内部に加え、運動促進部材５の内部でも激しく様々な方向に運動するため、制振作用をより効率的に発現することができる。   In the embodiment shown in FIG. 2, the powder body 4 vigorously moves in various directions not only inside the hollow body 3 but also inside the motion promoting member 5, so that the vibration damping action can be expressed more efficiently. it can.

図３および図４に示す実施形態は、図１および図２に示す実施形態のように、制振部材２を制振対象となる構造体１に取り付けた実施形態ではなく、制振対象となる構造体１の内部に制振部材２を内蔵した実施形態である。   The embodiment shown in FIG. 3 and FIG. 4 is not the embodiment in which the damping member 2 is attached to the structure 1 that is the damping target, like the embodiment shown in FIGS. This is an embodiment in which a damping member 2 is built in the structure 1.

図３に示す実施形態に係る制振部材２は、円柱状の空間が内部に形成された中空体３と、その中空体３内に一部空間６を残して充填され、構造体１が振動を受けた際に中空体３内で運動する粉粒体４と、中空体３内に粉粒体３で被覆されるようにして設けられ、振動時に粉粒体４の運動を促進する断面円形で中空状の運動促進部材５を有して構成されている。   The vibration damping member 2 according to the embodiment shown in FIG. 3 is filled with a hollow body 3 in which a cylindrical space is formed, and the hollow body 3 leaving a partial space 6 so that the structure 1 vibrates. The granular material 4 that moves in the hollow body 3 when it receives, and the circular shape that is provided so as to be covered with the granular material 3 in the hollow body 3 and promotes the movement of the granular material 4 during vibration And has a hollow motion promoting member 5.

これら制振部材２を構成する中空体３、粉粒体４および運動促進部材５は、中空体３が構造体１に内蔵され、その形状が円柱状であることを除き、材質、構成等は、図１に示す実施形態の制振部材２と同一である。   The hollow body 3, the granular material 4, and the motion promoting member 5 constituting the vibration damping member 2 have the same materials, configurations, etc. except that the hollow body 3 is built in the structure 1 and the shape thereof is a columnar shape. This is the same as the damping member 2 of the embodiment shown in FIG.

この実施形態の場合、制振対象となる構造体１に振動が発生すると、中空体３および運動促進部材５も構造体１と同じ方向に振動する。運動促進部材５の凸状の曲面５ａに衝突した粉粒体４は、中空体３内で様々な方向に運動するようになり、更には、中空体３の内面および運動促進部材５の曲面５ａに繰り返し衝突した粉粒体４は、中空体３内部でより激しく運動する。   In the case of this embodiment, when vibration is generated in the structure 1 to be controlled, the hollow body 3 and the motion promoting member 5 also vibrate in the same direction as the structure 1. The granular material 4 that has collided with the convex curved surface 5 a of the motion promoting member 5 moves in various directions within the hollow body 3, and further, the inner surface of the hollow body 3 and the curved surface 5 a of the motion promoting member 5. The granular material 4 that repeatedly collided with each other moves more intensely inside the hollow body 3.

中空体３内部で様々な方向に激しく動く粉粒体４の運動によって、構造体１の振動エネルギーは、粒子（粉粒体４）、中空体３、運動促進部材５の弾性変形や、それらの互いの摩擦、衝突などにより散逸され、制振作用が発現して、構造体１の振動は抑制されることとなる   Due to the motion of the granular material 4 that moves violently in various directions inside the hollow body 3, the vibration energy of the structure 1 becomes elastic deformation of the particles (the granular material 4), the hollow body 3, and the motion promoting member 5, They are dissipated due to mutual friction, collision, etc., and a damping action is exhibited, and vibration of the structure 1 is suppressed.

この図３に示す実施形態の場合、中空体３の内面も曲面であるため、制振対象となる構造体１に、上下、左右、斜め等、あらゆる方向の振動が起こった場合や、振動方向が刻々変化する場合にも、安定して効果を発現する。   In the case of the embodiment shown in FIG. 3, since the inner surface of the hollow body 3 is also a curved surface, vibrations in all directions such as up and down, left and right, and diagonal directions occur in the structure 1 to be controlled, and the vibration direction Even when changes continuously, the effect is stably exhibited.

図４に示す実施形態は、図３に示す実施形態と同様に、構造体１に内蔵され、円柱状の空間が内部に形成された中空体３と、その中空体３内に一部空間６を残して充填され、構造体１が振動を受けた際に中空体３内で運動する粉粒体４と、中空体３内に粉粒体４で被覆されるようにして設けられ、振動時に粉粒体４の運動を促進する断面円形で中空状の運動促進部材５を有して構成されているが、図４に示す実施形態では、更に、断面円形の運動促進部材５の内部にも、粉粒体４が充填されている。   The embodiment shown in FIG. 4 is similar to the embodiment shown in FIG. 3. The hollow body 3 is built in the structure 1 and has a cylindrical space formed therein, and the partial space 6 is formed in the hollow body 3. And the granular material 4 that moves in the hollow body 3 when the structure 1 is vibrated, and is provided so as to be covered with the granular material 4 in the hollow body 3. In the embodiment shown in FIG. 4, the movement promoting member 5 having a circular cross section that promotes the movement of the granular material 4 is also provided inside the movement promoting member 5 having a circular cross section. The granular material 4 is filled.

これら制振部材２を構成する中空体３、粉粒体４および運動促進材５は、中空体３が構造体１に内蔵され、その形状が円柱状であることを除き、材質、構成等は、図２に示す実施形態の制振部材２と同一である。   The hollow body 3, the granular material 4, and the motion promoting material 5 constituting the vibration damping member 2 are made of the same material, configuration, etc. except that the hollow body 3 is built in the structure 1 and the shape thereof is a columnar shape. This is the same as the damping member 2 of the embodiment shown in FIG.

この図４に示す実施形態では、図２に示す実施形態と同様に、粉粒体４が、中空体３内部に加え、運動促進材５の内部でも激しく様々な方向に運動するため、制振作用をより効率的に発現することができる。   In the embodiment shown in FIG. 4, as in the embodiment shown in FIG. 2, the powder body 4 vigorously moves in various directions not only inside the hollow body 3 but also inside the motion promoting material 5. The effect can be expressed more efficiently.

図５および図６に示す実施形態は、本発明をモータのステータ（固定子）に適用した実施形態である。この実施形態の場合、制振対象となる構造体１は円筒形状のステータ１ａであり、制振部材２は、ステータ１ａの両端面のうち、振動振幅のより大きい側の端面に取り付けられている。   The embodiment shown in FIGS. 5 and 6 is an embodiment in which the present invention is applied to a stator (stator) of a motor. In the case of this embodiment, the structure 1 that is the object of vibration damping is a cylindrical stator 1a, and the vibration damping member 2 is attached to the end face of the stator 1a having the larger vibration amplitude among the both end faces. .

中空体３は、円筒形状のステータ１ａと略同一径（外径、内径とも）の円環状であって、厚みがステータ１ａの厚み（長さ）より十分に薄い扁平形状である。その中空体３の中空空間は、複数の仕切り壁７で例えば等間隔に仕切られており、仕切られた各中空空間内には、夫々粉粒体４が一部空間６を残して充填されていると共に、断面円形の運動促進部材５が設けられており、また、運動促進部材５の内部には、必要に応じて、粉粒体４が一部空間６ａを残して充填されている。   The hollow body 3 is an annular shape having substantially the same diameter (both outer diameter and inner diameter) as the cylindrical stator 1a, and has a flat shape that is sufficiently thinner than the thickness (length) of the stator 1a. The hollow space of the hollow body 3 is partitioned by a plurality of partition walls 7 at regular intervals, for example, and each of the partitioned hollow spaces is filled with the granular material 4 leaving a partial space 6. In addition, a motion promoting member 5 having a circular cross section is provided, and the inside of the motion promoting member 5 is filled with a granular material 4 leaving a partial space 6a as necessary.

尚、図５に示す実施形態は、運動促進部材５の内部に粉粒体４が一部空間６ａを残して充填された実施形態であるが、運動促進部材５の内部に粉粒体４が充填されていなくても良い。また、図５に示す実施形態では、中空体３の円環状の中空空間６は、１２枚の仕切り壁７で等間隔に仕切られているが、必ずしも等間隔に仕切られている必要はなく、また、仕切り壁７の枚数も１２枚でなくても良い。   The embodiment shown in FIG. 5 is an embodiment in which the granular material 4 is filled inside the motion promoting member 5 leaving a part of the space 6a. It does not need to be filled. In the embodiment shown in FIG. 5, the annular hollow space 6 of the hollow body 3 is partitioned at equal intervals by twelve partition walls 7, but is not necessarily partitioned at equal intervals, Further, the number of partition walls 7 may not be twelve.

更には、特に図示はしないが、仕切り壁７と運動促進部材５の機能を兼ね備えた断面波形の円環状の部材を中空体３の円環状の中空空間６に設けても良い。   Further, although not particularly illustrated, an annular member having a corrugated cross section having the functions of the partition wall 7 and the motion promoting member 5 may be provided in the annular hollow space 6 of the hollow body 3.

この実施形態では、ステータ１ａの端面に設けられた中空体３の各中空空間内部で様々な方向に激しく動く粉粒体４の運動によって、ステータ１ａの振動エネルギーは、粒子（粉粒体４、中空体３、運動促進部材５の弾性変形や、それらの互いの摩擦、衝突などにより散逸され、制振作用が発現して、構造体１の振動は抑制されることとなる。   In this embodiment, the vibration energy of the stator 1a is changed to particles (powder particles 4,...) By the movement of the powder particles 4 that move vigorously in various directions inside the hollow spaces of the hollow body 3 provided on the end face of the stator 1a. The hollow body 3 and the motion accelerating member 5 are dissipated by elastic deformation, friction and collision with each other, and a damping action is exhibited, and vibration of the structure 1 is suppressed.

１…構造体
１ａ…ステータ
２…制振部材
３…中空体
４…粉粒体
５…運動促進部材
５ａ…曲面
６…空間
６ａ…空間
７…仕切り壁 DESCRIPTION OF SYMBOLS 1 ... Structure 1a ... Stator 2 ... Damping member 3 ... Hollow body 4 ... Granule 5 ... Motion promotion member 5a ... Curved surface 6 ... Space 6a ... Space 7 ... Partition wall

Claims (6)

制振対象となる構造体に制振部材を設けてなる制振構造であって、前記制振部材は、中空体と、前記中空体内に一部空間を残して充填され前記構造体が振動を受けた際に前記中空体内で運動する粉粒体と、前記中空体内に設けられ振動時に前記粉粒体の運動を促進する凸状の曲面を有する運動促進部材とから構成されることを特徴とする制振構造。   A damping structure in which a damping member is provided on a structure to be damped, and the damping member is filled with a hollow body and a part of the hollow body leaving a space, and the structure vibrates. It is composed of a granular material that moves in the hollow body when received, and a motion promoting member that is provided in the hollow body and has a convex curved surface that promotes the movement of the granular material during vibration. Damping structure to do. 前記運動促進部材は、円形断面を有することを特徴とする請求項１記載の制振構造。   The vibration control structure according to claim 1, wherein the motion promoting member has a circular cross section. 前記運動促進部材は、球状或いは半球状であることを特徴とする請求項２記載の制振構造。   3. The vibration damping structure according to claim 2, wherein the motion promoting member is spherical or hemispherical. 前記運動促進部材は中空状であり、その内部にも粉粒体が充填されていることを特徴とする請求項１乃至３のいずれかに記載の制振構造。   4. The vibration damping structure according to claim 1, wherein the motion promoting member is hollow and filled therein with powder particles. 5. 前記運動促進部材は、前記中空体の内部に固定されていることを特徴とする請求項１乃至４のいずれかに記載の制振構造。   The vibration suppression structure according to any one of claims 1 to 4, wherein the motion promoting member is fixed inside the hollow body. 制振対象となる前記構造体は円筒形状のステータであって、前記中空体は前記ステータの端面に設けられた円環状で且つ扁平形状の中空体であり、複数に区切られた各中空空間内に、夫々前記粉粒体が充填されていると共に前記運動促進部材が設けられていることを特徴とする請求項１乃至５のいずれかに記載の制振構造。   The structure to be controlled is a cylindrical stator, and the hollow body is an annular and flat hollow body provided on an end surface of the stator, and is divided into a plurality of hollow spaces. The vibration damping structure according to any one of claims 1 to 5, wherein each of the powder particles is filled and the motion promoting member is provided.
JP2010228137A 2010-10-08 2010-10-08 Vibration damping structure Pending JP2012082880A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196944A (en) * 2014-08-27 2014-12-10 武汉科技大学 Semi-active particle damping rubber suspension device for power assembly
JP2015530268A (en) * 2012-08-31 2015-10-15 サンドビック インテレクチュアル プロパティー アクティエボラーグ Vibration damping tool
JP2017042863A (en) * 2015-08-26 2017-03-02 京セラ株式会社 Holder for cutting tool and cutting tool, and method for manufacturing cut work-piece by use thereof
EP3579388A1 (en) * 2018-06-05 2019-12-11 Siemens Aktiengesellschaft Electrical machine with sheet metal frame, the cavities of which are filled with sand
CN113153947A (en) * 2021-02-03 2021-07-23 厦门振为科技有限公司 Shafting hoop type particle damping shock absorber and design method
KR20210152302A (en) * 2020-06-08 2021-12-15 엘지전자 주식회사 Vibration absorber

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9903434B2 (en) 2013-08-21 2018-02-27 General Electric Company Components having vibration dampers enclosed therein and methods of forming such components
CN108049402B (en) * 2018-01-25 2023-06-16 西南科技大学 Prestressed anchor rod
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02286934A (en) * 1989-04-27 1990-11-27 Hitachi Ltd Vibration proofing structure
JPH06288463A (en) * 1993-03-31 1994-10-11 Brother Ind Ltd Timing pulley
JP2002067945A (en) * 2000-08-29 2002-03-08 Hitachi Ltd Railway rolling stock
JP2005265108A (en) * 2004-03-19 2005-09-29 Daiwarashi Co Ltd Vibration isolation pad

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610844A (en) * 1979-07-02 1981-02-03 Toyota Motor Corp Feedback control system vibration absorbing suspension
JP4546751B2 (en) * 2004-03-22 2010-09-15 株式会社鷺宮製作所 Rotating motorized valve
JP2005351446A (en) * 2004-06-14 2005-12-22 Honda Motor Co Ltd Vibration reducing device
CN101082360B (en) * 2006-06-01 2012-08-01 株式会社神户制钢所 Damping component
CN201053149Y (en) * 2007-05-25 2008-04-30 黄秀云 Composite ring type damper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02286934A (en) * 1989-04-27 1990-11-27 Hitachi Ltd Vibration proofing structure
JPH06288463A (en) * 1993-03-31 1994-10-11 Brother Ind Ltd Timing pulley
JP2002067945A (en) * 2000-08-29 2002-03-08 Hitachi Ltd Railway rolling stock
JP2005265108A (en) * 2004-03-19 2005-09-29 Daiwarashi Co Ltd Vibration isolation pad

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015530268A (en) * 2012-08-31 2015-10-15 サンドビック インテレクチュアル プロパティー アクティエボラーグ Vibration damping tool
US9855610B2 (en) 2012-08-31 2018-01-02 Sandvik Intellectual Property Ab Vibration-damped tool
CN104196944A (en) * 2014-08-27 2014-12-10 武汉科技大学 Semi-active particle damping rubber suspension device for power assembly
JP2017042863A (en) * 2015-08-26 2017-03-02 京セラ株式会社 Holder for cutting tool and cutting tool, and method for manufacturing cut work-piece by use thereof
EP3579388A1 (en) * 2018-06-05 2019-12-11 Siemens Aktiengesellschaft Electrical machine with sheet metal frame, the cavities of which are filled with sand
KR20210152302A (en) * 2020-06-08 2021-12-15 엘지전자 주식회사 Vibration absorber
KR102421853B1 (en) 2020-06-08 2022-07-18 엘지전자 주식회사 Vibration absorber
CN113153947A (en) * 2021-02-03 2021-07-23 厦门振为科技有限公司 Shafting hoop type particle damping shock absorber and design method

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CN103038539A (en) 2013-04-10
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