WO2012046834A1 - Vibration damping structure - Google Patents
Vibration damping structure Download PDFInfo
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- WO2012046834A1 WO2012046834A1 PCT/JP2011/073185 JP2011073185W WO2012046834A1 WO 2012046834 A1 WO2012046834 A1 WO 2012046834A1 JP 2011073185 W JP2011073185 W JP 2011073185W WO 2012046834 A1 WO2012046834 A1 WO 2012046834A1
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- hollow body
- vibration
- promoting member
- motion promoting
- granular material
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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
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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
- 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
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- 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
Definitions
- 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 structures of buildings, large machine structures, and fixed structures thereof.
- the present invention relates to a damping structure that can be effectively used for a structure or the like that generates vibration.
- Examples of structures that generate vibration include gears and rotating shafts of motors and generators, stators and rotors of speed reducers, beam members of transportation equipment such as automobiles, and further, frame structures of buildings, large machine structures, There are such fixed structures.
- a damping member configured by filling a hollow closed space with granular or powdery granular material in a structure that generates such vibrations, vibration suppression of the structural body is suppressed.
- Vibration technology has already been developed. 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.
- Patent Document 1 is a technique intended to be applied to the reduction of motor vibration of various frequencies and level characteristics by fixing a vibration 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 technology attenuates vibrations. Thereby, the generated noise can be reduced.
- the present invention has been made to solve these conventional problems. By promoting the movement of the granular material in the hollow body at the time of the occurrence of vibration, a sufficient damping effect even for vibration having a small amplitude. It is an object of the present invention to provide a vibration control structure capable of obtaining the above.
- the present invention is a damping structure configured by providing a damping member on a structure to be damped, and the damping member is filled with a hollow body, leaving a partial space in the hollow body, A granular material that moves in the hollow body when the structure vibrates, 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 the vibration. It is characterized by.
- the motion promoting member has a circular cross section.
- the motion promoting member is spherical or hemispherical.
- the motion promoting member is hollow and the inside of the motion promoting member is filled with powder particles.
- the motion promoting member is fixed inside the hollow body.
- the structure is a cylindrical stator
- the hollow body is an annular and flat hollow body provided on an end surface of the stator, and is formed by dividing the inside of the hollow body into a plurality of parts. It is preferable that each of the hollow spaces is filled with the powder and the movement promoting member is provided.
- the granular material moves when subjected to vibration, and the granular material collides with the convex curved surface of the motion promoting member.
- Each powder body receives forces in various directions and rebounds in various directions, so that the movement is further promoted.
- the elastic deformation and friction due to the collision between the powder particles or the collision between the powder particles and the inner surface of the hollow portion become more intense and the vibrations compared to the case where the powder is simply filled inside the hollow body.
- the energy absorption effect is also increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
- the motion promoting member has a circular cross section, elastic deformation and friction due to collision between the powder particles when subjected to vibration or collision between the powder particles and the inner surface of the hollow portion become more intense, and the vibration energy The absorption effect is further increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
- the vibration is reliably transmitted to the powder particles filled in the hollow body in various directions different from the vibration direction of the structure. Therefore, a stable damping effect can be expressed more reliably.
- the granular material when the granular material is filled in the hollow motion promoting member, the granular material also collides with the inner surface of the motion promoting member and moves more violently. A vibration effect can be expressed.
- the motion promoting member when 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, so that a more stable vibration damping effect can be exhibited.
- the structure to be controlled is a stator
- a damping effect can be surely exerted against vibrations generated in the stator of the motor or generator.
- FIGS. 1 and 2 an embodiment in which a damping member 2 is attached to a side surface parallel to the vibration direction of the structure 1 that is a damping target will be described with reference to FIGS. 1 and 2.
- 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.
- 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.
- a vibration damping member 2 according to the embodiment shown in FIG. 1 includes a hollow body 3 formed of a rectangular parallelepiped container, a powder body 4 filled with a partial space 6 in the hollow body 3, and a hollow body 3 And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 4.
- the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
- the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
- 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.
- the structure 1 that is the object of vibration damping generates a magnetic force like a motor
- the granular material 4 is formed of a non-magnetic material.
- the powder body 4 may be either a powder body or a granular body. Since the granular material 4 is filled in the hollow body 3 leaving a partial space 6, it can move in the hollow body 3. Filling so that the powder particles 4 occupy around 75% of the volume in the hollow body 3 is preferable in that the powder particles 4 can be moved more efficiently in the hollow body 3.
- the motion promoting member 5 has been described as having a circular cross section. However, if the convex surface 5a is formed on the surface of the motion promoting member 5, the motion promoting member 5 is spherical or cylindrical. Etc. Furthermore, the motion promoting member 5 may have 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, and may be an ellipse, for example, or may be a polyhedron or a shape like a soccer ball as long as the shape is close to a sphere. Absent. 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.
- the motion promoting member 5 is preferably fixed inside the hollow body 3.
- the motion promoting member 5 may be formed so as to protrude from the inner surface of the hollow body 3 to be integrated with the inner wall surface of the hollow body 3. . That is, the motion promoting member 5 may constitute the inner wall surface of the hollow body 3. 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 similar to the powder body 4 when the structure 1 is subjected to vibration. Alternatively, it may move within the hollow body 3. That is, the motion promoting member 5 may not be fixed to the hollow body 3.
- 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. Furthermore, when the granular material 4 repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5a of the movement promoting member 5, the movement of the granular material 4 becomes more intense.
- 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, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
- the motion promoting member 5 has a circular cross section and is hollow.
- the motion promoting member 5 is hollow. Instead, it may be a so-called flake shape having a circular arc cross section or an S-shaped cross section. 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.
- FIG. 2 The embodiment shown in FIG. 2 is similar to FIG. 1 in that the hollow body 3 is a rectangular parallelepiped container, the powder body 4 is filled in the hollow body 3 leaving a partial space 6, and the hollow body 3. And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 3 therein.
- the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
- the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
- the powder body 4 is also filled in the internal space of the motion promoting member 5 having a circular cross section.
- the motion promoting member 5 communicates with the inside of the hollow body 3, that is, when the motion promoting member 5 is a so-called open type, the granular material 4 forms a partial space 6 in the hollow body 3. If left and filled, the granular material 4 moves in the hollow body 3 during vibration and can also move in the movement promoting member 5.
- open type motion promoting member 5 include a cylindrical motion promoting member 5 whose one end is not in contact with the inner surface of the hollow body 3.
- the inside of the motion promoting member 5 is not in communication with the inside of the hollow body 3, that is, when the motion promoting member 5 is a so-called closed shape such as a spherical shape, the inside of the motion promoting member 5 is the hollow body 3. It is partitioned from the inside. Therefore, in order to move the granular material 4 even inside the motion promoting member 5, it is necessary to fill the granular material 4 while leaving a partial space 6 a inside the motion promoting member 5.
- 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.
- FIGS. 3 and 4 is different from the embodiment shown in FIGS. 1 and 2 in which the damping member 2 is attached to the outside of the structure 1 to be damped, and the structure 1 to be damped.
- the damping member 2 is built in the interior of the housing.
- the vibration damping member 2 according to the embodiment shown in FIG. 3 includes a hollow body 3 in which a cylindrical space is formed, and a powder body 4 that is filled in the hollow body 3 leaving a partial space 6.
- the hollow body 3 is provided with a motion promoting member 5 having a circular cross section and being provided so as to be covered with the powder body 3 in the hollow body 3.
- the granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration.
- the motion promoting member 5 promotes the motion of the powder body 4 during vibration.
- the vibration damping member 2 shown in FIG. 3 is the same as the vibration damping member 2 shown in FIG. 1 in terms of the material, configuration and the like of the hollow body 3, the granular material 4 and the motion promoting member 5. 1 differs from the vibration damping member 2 shown in FIG. 1 only in that it is built in and the shape of the hollow body 3 is cylindrical.
- the hollow body 3 and the motion promoting member 5 when vibration occurs 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. Furthermore, the granular material 4 that repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5 a of the motion promoting member 5 moves more intensely 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, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
- 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 A stable effect is exhibited even when the value changes from moment to moment.
- the vibration damping member 2 is built in the structure 1 similarly to FIG. 3, and includes a hollow body 3 in which a cylindrical space is formed, and a single hollow body 3.
- the granular material 4 is also filled inside the motion promoting member having a circular cross section.
- the vibration damping member 2 shown in FIG. 4 is the same as the vibration damping member 2 shown in FIG. 2 in terms of the material, configuration and the like of the hollow body 3, the granular material 4, and the motion promoting member 5. 2 differs from the vibration damping member 2 shown in FIG. 2 only in that the hollow body 3 has a cylindrical shape.
- the powder body 4 vigorously moves in various directions not only inside the hollow body 3 but also inside the motion promoting material 5. Can be expressed more efficiently.
- FIGS. 5 and 6 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.
- the structural body 1 to be controlled is a cylindrical stator 1a.
- the damping member 2 is attached to the end face having the larger vibration amplitude.
- the hollow body 3 has a circular shape having substantially the same diameter as the cylindrical stator 1a.
- the hollow body 3 has a flat shape, and the thickness of the hollow body 3 is sufficiently smaller than the thickness (axial length) of the stator 1a.
- the hollow space of the hollow body 3 is partitioned by, for example, a plurality of partition walls 7 at equal intervals.
- Each of the partitioned hollow spaces is filled with a granular material 4 leaving a partial space 6 and provided with a motion promoting member 5 having a circular cross section.
- the inside of the motion promotion member 5 is filled with the granular material 4 leaving the partial space 6a as needed.
- the granular material 4 is filled inside the motion promoting member 5 leaving a part of the space 6 a, but the granular material 4 is filled inside the movement promoting member 5. It is not necessary.
- the annular hollow space 6 of the hollow body 3 is partitioned at equal intervals by 12 partition walls 7, but is not necessarily partitioned at equal intervals, The number of partition walls 7 may not be twelve.
- 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 of the hollow body 3.
- the granular material 4 moves violently in various directions inside the hollow space of the hollow body 3 provided on the end face of the stator 1a.
- the vibration energy of the stator 1a is dissipated by the elastic deformation of the granular material 4, the hollow body 3, and the motion promoting member 5 accompanying such movement of the granular material 4, and their mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
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Abstract
The purpose of the present invention is to provide a vibration damping structure capable of sufficiently damping even vibration having a small amplitude. The present invention is a vibration damping structure configured by providing a vibration damping member (2) to a structure (1), the vibration of which is to be damped. The vibration damping member (2) is provided with: a hollow body (3); powder bodies (4) filled into the hollow body (3) with a space (6) left therein 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 (1) vibrates.
Description
本発明は、モータや発電機のステータやロータ、また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。
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 structures of buildings, large machine structures, and fixed structures thereof. The present invention relates to a damping structure that can be effectively used for a structure or the like that generates vibration.
振動が発生する構造体として、例えば、モータや発電機のステータやロータ、また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がある。このような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て構成された制振部材を設けることで、構造体の振動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。
Examples of structures that generate vibration include gears and rotating shafts of motors and generators, stators and rotors of speed reducers, beam members of transportation equipment such as automobiles, and further, frame structures of buildings, large machine structures, There are such fixed structures. By providing a damping member configured by filling a hollow closed space with granular or powdery granular material in a structure that generates such vibrations, vibration suppression of the structural body is suppressed. Vibration technology has already been developed. 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への適用が意図された技術である。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る技術である。これにより、発生する騒音を低減することが可能である。
The technique described in Patent Document 1 is a technique intended to be applied to the reduction of motor vibration of various frequencies and level characteristics by fixing a vibration 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 technology attenuates vibrations. Thereby, the generated noise can be reduced.
上記した技術を採用することで、制振効果を得ることはできる。しかしながら、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るため、単に粉粒体を中空部に充填するだけでは、条件によっては確実に制振効果を得ることができないという問題もあった。
By adopting the above-mentioned technology, it is possible to obtain a vibration control effect. However, since the damping effect of the granular material has a non-linear characteristic, there is also a problem that the damping effect cannot be reliably obtained depending on the conditions simply by filling the hollow portion with the granular material. It was.
すなわち、粉粒体が振動により運動すると、粉粒体同士が衝突、変形、摩擦することによって、または、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、粉粒体による制振効果が発現する。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なる。したがって、小さい振幅に対しては十分な制振効果が得られないという問題がある。
That is, when the granular material moves due to vibration, the granular material collides, deforms, and rubs with each other, or the granular material collides with, deforms, and rubs against the inner surface of the hollow portion, thereby controlling by the granular material. A vibration effect appears. In particular, in the case of subjecting to vibration in the vertical direction, it is necessary to resist gravity in order for the granular material to move, and vibration acceleration of 1 G or more is required to obtain a vibration damping effect. Therefore, there is a problem that a sufficient damping effect cannot be obtained for a small amplitude.
本発明は、これら従来の問題を解決するためになされたもので、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によって、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。
The present invention has been made to solve these conventional problems. By promoting the movement of the granular material in the hollow body at the time of the occurrence of vibration, a sufficient damping effect even for vibration having a small amplitude. It is an object of the present invention to provide a vibration control structure capable of obtaining the above.
本発明は、制振対象の構造体に制振部材を設けて構成される制振構造であって、前記制振部材が、中空体と、前記中空体内に一部空間を残して充填され、前記構造体の振動時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、前記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、を備えることを特徴とする。
The present invention is a damping structure configured by providing a damping member on a structure to be damped, and the damping member is filled with a hollow body, leaving a partial space in the hollow body, A granular material that moves in the hollow body when the structure vibrates, 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 the vibration. It is characterized by.
前記運動促進部材が、円形断面を有することが好ましい。
It is preferable that the motion promoting member has a circular cross section.
さらに、前記運動促進部材が、球状または半球状であることが好ましい。
Furthermore, it is preferable that the motion promoting member is spherical or hemispherical.
また、前記運動促進部材が中空状であり、前記運動促進部材の内部にも粉粒体が充填されていることが好ましい。
Further, it is preferable that the motion promoting member is hollow and the inside of the motion promoting member is filled with powder particles.
また、前記運動促進部材が、前記中空体の内部に固定されていることが好ましい。
Further, it is preferable that the motion promoting member is fixed inside the hollow body.
また、前記構造体が円筒形状のステータであり、前記中空体が前記ステータの端面に設けられた円環状且つ扁平形状の中空体であり、前記中空体の内部を複数に区切ることにより形成された中空空間内のそれぞれに、前記粉粒体が充填され、且つ前記運動促進部材が設けられていることが好ましい。
Further, the structure 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 formed by dividing the inside of the hollow body into a plurality of parts. It is preferable that each of the hollow spaces is filled with the powder and the movement promoting member is provided.
本発明によると、振動を受けた際に粉粒体が運動し、粉粒体が運動促進部材の凸状の曲面に衝突する。それぞれ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、運動は更に促進される。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、粉粒体同士の衝突、または粉粒体と中空部の内面の衝突による弾性変形、摩擦がより激しくなり、その振動エネルギーの吸収効果もより大きくなる。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 present invention, the granular material moves when subjected to vibration, and the granular material collides with the convex curved surface of the motion promoting member. Each powder body receives forces in various directions and rebounds in various directions, so that the movement is further promoted. As a result, the elastic deformation and friction due to the collision between the powder particles or the collision between the powder particles and the inner surface of the hollow portion become more intense and the vibrations compared to the case where the powder is simply filled inside the hollow body. The energy absorption effect is also increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
運動促進部材は円形断面を有する場合には、振動を受けた際の粉粒体同士の衝突、または粉粒体と中空部の内面の衝突による弾性変形、摩擦がより激しくなり、その振動エネルギーの吸収効果がさらに大きくなる。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。
When the motion promoting member has a circular cross section, elastic deformation and friction due to collision between the powder particles when subjected to vibration or collision between the powder particles and the inner surface of the hollow portion become more intense, and the vibration energy The absorption effect is further increased. Therefore, even if the vibration acceleration is a small vibration of less than 1 G, the vibration damping effect can be surely exhibited.
さらに、運動促進部材の形状が球状または半球状である場合には、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るため、より確実に安定した制振効果を発現することができる。
Furthermore, when the shape of the motion promoting member is spherical or hemispherical, the vibration is reliably transmitted to the powder particles filled in the hollow body in various directions different from the vibration direction of the structure. Therefore, a stable damping effect can be expressed more reliably.
また、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場合には、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ため、より確実に安定した制振効果を発現することができる。
In addition, when the granular material is filled in the hollow motion promoting member, the granular material also collides with the inner surface of the motion promoting member and moves more violently. A vibration effect can be expressed.
また、運動促進部材が中空体の内部に固定されている場合には、運動促進部材が制振効果を中空体に伝える働きをするため、より安定した制振効果を発現することができる。
Further, when 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, so that a more stable vibration damping effect can be exhibited.
また、制振対象の構造体がステータである場合には、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。
In addition, when the structure to be controlled is a stator, a damping effect can be surely exerted against vibrations generated in the stator of the motor or generator.
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、構造体1の上面等その他の部位に制振部材2を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 that is a damping target 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、中空体3内に一部空間6を残して充填される粉粒体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る断面円形で中空状の運動促進部材5と、を備える。粉粒体4は、構造体1が振動を受けた際に中空体3内で運動する。運動促進部材5は、振動時に粉粒体4の運動を促進する。
A vibration damping member 2 according to the embodiment shown in FIG. 1 includes a hollow body 3 formed of a rectangular parallelepiped container, a powder body 4 filled with a partial space 6 in the hollow body 3, and a hollow body 3 And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 4. The granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration. The motion promoting member 5 promotes the motion of the powder body 4 during vibration.
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がモータのように磁力を発する場合には、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、粉状体および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。粉粒体4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. When the structure 1 that is the object of vibration damping generates a magnetic force like a motor, it is desirable that the granular material 4 is formed of a non-magnetic material. Further, the powder body 4 may be either a powder body or a granular body. Since the granular material 4 is filled in the hollow body 3 leaving a partial space 6, it can move in the hollow body 3. Filling so that the powder particles 4 occupy around 75% of the volume in the hollow body 3 is preferable in 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は断面円形であると説明したが、運動促進部材5の表面に凸状の曲面5aが形成されていれば、運動促進部材5が球形、円筒形等であっても良い。更には、運動促進部材5が半球形、円錐形等の形状であっても良い。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、例えば楕円形であっても良く、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も構わない。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れず、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. However, if the convex surface 5a is formed on the surface of the motion promoting member 5, the motion promoting member 5 is spherical or cylindrical. Etc. Furthermore, the motion promoting member 5 may have 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, and may be an ellipse, for example, or may be a polyhedron or a shape like a soccer ball as long as the shape is close to a sphere. Absent. 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.
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い。また、運動促進部材5が半球形や円錐形の場合は、運動促進部材5が中空体3の内面から内側に隆起するような形成されて中空体3の内壁面と一体となっていても良い。すなわち、運動促進部材5は、中空体3の内壁面を構成していても良い。尚、図1には、運動促進部材5が中空体3に固定された実施形態が示されているが、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内で運動するものであっても良い。すなわち、運動促進部材5は、中空体3に固定されていなくても良い。
The motion promoting member 5 is preferably fixed inside the hollow body 3. When the motion promoting member 5 is hemispherical or conical, the motion promoting member 5 may be formed so as to protrude from the inner surface of the hollow body 3 to be integrated with the inner wall surface of the hollow body 3. . That is, the motion promoting member 5 may constitute the inner wall surface of the hollow body 3. 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 similar to the powder body 4 when the structure 1 is subjected to vibration. Alternatively, it may move within the hollow body 3. That is, the motion promoting member 5 may not be 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る。更には、粉粒体4が中空体3の内面および運動促進部材5の曲面5aに繰り返し衝突することにより、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. Furthermore, when the granular material 4 repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5a of the movement promoting member 5, the movement of the granular material 4 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る。このようにして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, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
尚、図1に示す実施形態では、運動促進部材5が断面円形で中空状であるが、運動促進部材5の表面に凸状の曲面5aさえ形成されていれば、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 surface 5a is formed on the surface of the motion promoting member 5, the motion promoting member 5 is hollow. Instead, it may be a so-called flake shape having a circular arc cross section or an S-shaped cross section. 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る断面円形で中空状の運動促進部材5と、を備える。粉粒体4は、構造体1が振動を受けた際に中空体3内で運動する。運動促進部材5は、振動時に粉粒体4の運動を促進する。更に、図2に示す実施形態では、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 similar to FIG. 1 in that the hollow body 3 is a rectangular parallelepiped container, the powder body 4 is filled in the hollow body 3 leaving a partial space 6, and the hollow body 3. And a motion promoting member 5 having a circular cross section and a hollow shape provided so as to be covered with the granular material 3 therein. The granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration. The motion promoting member 5 promotes the motion of the powder body 4 during vibration. Furthermore, in the embodiment shown in FIG. 2, the powder body 4 is also filled in the internal space of the motion promoting member 5 having a circular cross section.
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、すなわち、運動促進部材5がいわゆる開放形の場合は、粉粒体4が中空体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内で運動すると共に、運動促進部材5の内部でも運動できる。このような開放形の運動促進部材5としては、例えば、一端側が中空体3の内面と接触していない円筒形の運動促進部材5等がある。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、すなわち、運動促進部材5が例えば球形等のいわゆる閉鎖形の場合は、運動促進部材5の内部が中空体3の内部とは仕切られる。そのため、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、運動促進部材5の内部に一部空間6aを残して粉粒体4を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, that is, when the motion promoting member 5 is a so-called open type, the granular material 4 forms a partial space 6 in the hollow body 3. If left and filled, the granular material 4 moves in the hollow body 3 during vibration and can also move in the movement promoting member 5. Examples of such an open type motion promoting member 5 include a cylindrical motion promoting member 5 whose one end is not in contact with the inner surface of the hollow body 3. However, when the inside of the motion promoting member 5 is not in communication with the inside of the hollow body 3, that is, when the motion promoting member 5 is a so-called closed shape such as a spherical shape, the inside of the motion promoting member 5 is the hollow body 3. It is partitioned from the inside. Therefore, in order to move the granular material 4 even inside the motion promoting member 5, it is necessary to fill the granular material 4 while leaving a partial space 6 a inside the motion promoting member 5.
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、制振対象となる構造体1の外部に制振部材2が取り付けられる図1および図2に示す実施形態とは異なり、制振対象となる構造体1の内部に制振部材2が内蔵される。
The embodiment shown in FIGS. 3 and 4 is different from the embodiment shown in FIGS. 1 and 2 in which the damping member 2 is attached to the outside of the structure 1 to be damped, and the structure 1 to be damped. The damping member 2 is built in the interior of the housing.
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る断面円形で中空状の運動促進部材5と、を備える。粉粒体4は、構造体1が振動を受けた際に中空体3内で運動する。運動促進部材5は、振動時に粉粒体4の運動を促進する。
The vibration damping member 2 according to the embodiment shown in FIG. 3 includes a hollow body 3 in which a cylindrical space is formed, and a powder body 4 that is filled in the hollow body 3 leaving a partial space 6. The hollow body 3 is provided with a motion promoting member 5 having a circular cross section and being provided so as to be covered with the powder body 3 in the hollow body 3. The granular material 4 moves in the hollow body 3 when the structural body 1 receives vibration. The motion promoting member 5 promotes the motion of the powder body 4 during vibration.
図3に示す制振部材2は、中空体3、粉粒体4および運動促進部材5の材質、構成等は図1に示す制振部材2と同一であるが、中空体3が構造体1に内蔵される点と、中空体3の形状が円柱状である点でのみ図1に示す制振部材2と異なる。
The vibration damping member 2 shown in FIG. 3 is the same as the vibration damping member 2 shown in FIG. 1 in terms of the material, configuration and the like of the hollow body 3, the granular material 4 and the motion promoting member 5. 1 differs from the vibration damping member 2 shown in FIG. 1 only in that it is built in and the shape of the hollow body 3 is cylindrical.
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る。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 occurs 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. Furthermore, the granular material 4 that repeatedly collides with the inner surface of the hollow body 3 and the curved surface 5 a of the motion promoting member 5 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る。このようにして制振作用が発現して、構造体1の振動は抑制される事となる。
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, Dissipated by mutual friction and collision. In this way, the damping action is expressed and the 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、安定した効果が発現される。
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 A stable effect is exhibited even when the value changes from moment to moment.
図4に示す実施形態に係る制振部材2は、図3と同様に構造体1に内蔵されており、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る断面円形で中空状の運動促進部材5と、を備える。更に、図4に示す実施形態では、断面円形の運動促進部材の内部にも、粉粒体4が充填されている。
The vibration damping member 2 according to the embodiment shown in FIG. 4 is built in the structure 1 similarly to FIG. 3, and includes a hollow body 3 in which a cylindrical space is formed, and a single hollow body 3. A granular material 4 that is filled leaving the partial space 6, and a hollow-shaped motion promoting member 5 having a circular cross section provided so as to be covered with the granular material 4 in the hollow body 3. Furthermore, in the embodiment shown in FIG. 4, the granular material 4 is also filled inside the motion promoting member having a circular cross section.
図4に示す制振部材2は、中空体3、粉粒体4および運動促進部材5の材質、構成等は図2に示す制振部材2と同一であるが、中空体3が構造体1に内蔵される点と、中空体3の形状が円柱状である点でのみ図2に示す制振部材2と異なる。
The vibration damping member 2 shown in FIG. 4 is the same as the vibration damping member 2 shown in FIG. 2 in terms of the material, configuration and the like of the hollow body 3, the granular material 4, and the motion promoting member 5. 2 differs from the vibration damping member 2 shown in FIG. 2 only in that the hollow body 3 has a cylindrical shape.
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、中空体3内部に加えて運動促進材5の内部でも粉粒体4が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. Can be expressed more efficiently.
図5および図6に示す実施形態は、本発明がモータのステータ(固定子)に適用された実施形態である。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である。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、制振部材2が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 structural body 1 to be controlled is a cylindrical stator 1a. Of the both end faces of the stator 1a, the damping member 2 is attached to the end face having the larger vibration amplitude.
中空体3は、円筒形状のステータ1aと外径、内径とも略同一径である円状である。また、中空体3は扁平形状であり、中空体3の厚みはステータ1aの厚み(軸方向長さ)より十分に薄い。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いる。仕切られた中空空間のそれぞれの内部には、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が設けられている。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 has a circular shape having substantially the same diameter as the cylindrical stator 1a. The hollow body 3 has a flat shape, and the thickness of the hollow body 3 is sufficiently smaller than the thickness (axial length) of the stator 1a. The hollow space of the hollow body 3 is partitioned by, for example, a plurality of partition walls 7 at equal intervals. Each of the partitioned hollow spaces is filled with a granular material 4 leaving a partial space 6 and provided with a motion promoting member 5 having a circular cross section. Moreover, the inside of the motion promotion member 5 is filled with the granular material 4 leaving the partial space 6a as needed.
尚、図5に示す実施形態では、運動促進部材5の内部に粉粒体4が一部空間6aを残して充填されているが、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が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。
In the embodiment shown in FIG. 5, the granular material 4 is filled inside the motion promoting member 5 leaving a part of the space 6 a, but the granular material 4 is filled inside the movement promoting member 5. It is not necessary. In the embodiment shown in FIG. 5, the annular hollow space 6 of the hollow body 3 is partitioned at equal intervals by 12 partition walls 7, but is not necessarily partitioned at equal intervals, 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が、中空体3の円環状の中空空間に設けられても良い。
Furthermore, 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 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の中空空間の内部で、粉粒体4が様々な方向に激しく動く。ステータ1aの振動エネルギーは、このような粉粒体4の運動に伴う粉粒体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る。このようにして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 granular material 4 moves violently in various directions inside the hollow space of the hollow body 3 provided on the end face of the stator 1a. The vibration energy of the stator 1a is dissipated by the elastic deformation of the granular material 4, the hollow body 3, and the motion promoting member 5 accompanying such movement of the granular material 4, and their mutual friction and collision. In this way, the damping action is expressed and the vibration of the structure 1 is suppressed.
以上、本発明の実施形態および実施例について説明したが、本発明は上述の実施の形態に限られるものではなく、特許請求の範囲に記載した限りにおいて様々に変更して実施することが可能なものである。本出願は2010年10月8日出願の日本特許出願(特願2010-228137)に基づくものであり、その内容はここに参照として取り込まれる。
The embodiments and examples of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. Is. This application is based on a Japanese patent application filed on October 8, 2010 (Japanese Patent Application No. 2010-228137), the contents of which are incorporated herein by reference.
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 OFSYMBOLS 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
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
Claims (6)
- 制振対象の構造体に制振部材を設けて構成される制振構造であって、
前記制振部材が、
中空体と、
前記中空体内に一部空間を残して充填され、前記構造体の振動時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、前記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、を備えることを特徴とする制振構造。 A damping structure configured by providing a damping member on a structure to be damped,
The damping member is
A hollow body,
Filled with leaving some space in the hollow body, and a granular material that moves in the hollow body when the structure vibrates,
And a motion promoting member provided in the hollow body and having a convex curved surface that promotes the motion of the granular material during the vibration. - 前記運動促進部材が、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.
- 前記運動促進部材が、球状また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.
- 前記運動促進部材が中空状であり、前記運動促進部材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に記載の制振構造。 2. The vibration damping structure according to claim 1, wherein the motion promoting member is hollow, and the inside of the motion promoting member is filled with a granular material.
- 前記運動促進部材が、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に記載の制振構造。 The vibration control structure according to claim 1, wherein the motion promoting member is fixed inside the hollow body.
- 前記構造体が円筒形状のステータであり、
前記中空体が前記ステータの端面に設けられた円環状且つ扁平形状の中空体であり、
前記中空体の内部を複数に区切ることにより形成された中空空間内のそれぞれに、前記粉粒体が充填され、且つ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に記載の制振構造。 The structure is a cylindrical stator,
The hollow body is an annular and flat hollow body provided on the end face of the stator,
2. The motion promoting member according to claim 1, wherein each of the hollow spaces formed by dividing the inside of the hollow body into a plurality is filled with the powder and the motion promoting member is provided. Damping structure.
Priority Applications (1)
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CN201180037217.4A CN103038539B (en) | 2010-10-08 | 2011-10-07 | Vibration damping structure |
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JP2010228137A JP2012082880A (en) | 2010-10-08 | 2010-10-08 | Vibration damping structure |
JP2010-228137 | 2010-10-08 |
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WO2012046834A1 true WO2012046834A1 (en) | 2012-04-12 |
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PCT/JP2011/073185 WO2012046834A1 (en) | 2010-10-08 | 2011-10-07 | Vibration damping structure |
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JP (1) | JP2012082880A (en) |
CN (1) | CN103038539B (en) |
WO (1) | WO2012046834A1 (en) |
Cited By (2)
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WO2015027064A1 (en) * | 2013-08-21 | 2015-02-26 | General Electric Company | Components having vibration dampers enclosed therein and method of forming such components |
JP2020131318A (en) * | 2019-02-15 | 2020-08-31 | 株式会社豊田中央研究所 | Boring bar and manufacturing method therefor |
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KR102421853B1 (en) * | 2020-06-08 | 2022-07-18 | 엘지전자 주식회사 | Vibration absorber |
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Citations (3)
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 |
JP2005265108A (en) * | 2004-03-19 | 2005-09-29 | Daiwarashi Co Ltd | Vibration isolation pad |
Family Cites Families (6)
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 |
JP3863358B2 (en) * | 2000-08-29 | 2006-12-27 | 株式会社日立製作所 | Railway vehicle |
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 |
-
2010
- 2010-10-08 JP JP2010228137A patent/JP2012082880A/en active Pending
-
2011
- 2011-10-07 CN CN201180037217.4A patent/CN103038539B/en not_active Expired - Fee Related
- 2011-10-07 WO PCT/JP2011/073185 patent/WO2012046834A1/en active Application Filing
Patent Citations (3)
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 |
JP2005265108A (en) * | 2004-03-19 | 2005-09-29 | Daiwarashi Co Ltd | Vibration isolation pad |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015027064A1 (en) * | 2013-08-21 | 2015-02-26 | General Electric Company | Components having vibration dampers enclosed therein and method of forming such components |
US9903434B2 (en) | 2013-08-21 | 2018-02-27 | General Electric Company | Components having vibration dampers enclosed therein and methods of forming such components |
EP3604739A1 (en) * | 2013-08-21 | 2020-02-05 | General Electric Company | Components having vibration dampers enclosed therein and method of forming such components |
JP2020131318A (en) * | 2019-02-15 | 2020-08-31 | 株式会社豊田中央研究所 | Boring bar and manufacturing method therefor |
JP7052754B2 (en) | 2019-02-15 | 2022-04-12 | 株式会社豊田中央研究所 | Bowling bar and its manufacturing method |
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JP2012082880A (en) | 2012-04-26 |
CN103038539B (en) | 2015-04-08 |
CN103038539A (en) | 2013-04-10 |
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