WO2010117068A1 - 制振構造 - Google Patents
制振構造 Download PDFInfo
- Publication number
- WO2010117068A1 WO2010117068A1 PCT/JP2010/056475 JP2010056475W WO2010117068A1 WO 2010117068 A1 WO2010117068 A1 WO 2010117068A1 JP 2010056475 W JP2010056475 W JP 2010056475W WO 2010117068 A1 WO2010117068 A1 WO 2010117068A1
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- WO
- WIPO (PCT)
- Prior art keywords
- vibration
- hollow body
- vibrating
- hollow
- vibrating body
- Prior art date
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- 238000013016 damping Methods 0.000 title claims abstract description 73
- 239000000843 powder Substances 0.000 claims abstract description 49
- 230000000694 effects Effects 0.000 abstract description 24
- 239000000463 material Substances 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 description 40
- 239000002245 particle Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
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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
Definitions
- the present invention relates to a damping structure that can be effectively used for a vibrating structure.
- Patent Document 1 attempts to reduce 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. We are trying to reduce noise by dampening vibration.
- the vibration control effect can surely be obtained.
- the damping effect of the granular material has a characteristic of having a non-linear characteristic, there is a problem that a certain damping effect cannot be obtained only by filling the hollow portion with the granular material. .
- the vibration damping effect by the granular material is manifested when the granular material moves by vibration and collides, deforms, and rubs with each other.
- a vibration acceleration of 1 G or more is necessary to obtain a vibration damping effect because the powder particles need to move while resisting gravity.
- the present invention has been made to solve these conventional problems. By promoting the movement of powder particles in a hollow body, a sufficient damping effect can be obtained even for vibrations having a small amplitude. It is an object to provide a vibration control structure that can be used.
- the present invention provides 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 the hollow body partially leaving a space.
- a granular material that moves in the hollow body when the structural body vibrates, and is attached to the hollow body and vibrates relative to the hollow body when the structural body vibrates into the granular body. It is characterized by comprising a vibrating body that touches and exerts a force.
- the vibrating body vibrates with a larger amplitude or a different phase than the hollow body.
- the vibrating body is attached to the hollow body so that the vibration direction of the vibrating body is different from the vibration direction of the structural body.
- the vibrating body passes through a point where the vibrating body is attached to the hollow body and has an asymmetric shape or mass distribution with respect to an axis parallel to the vibration direction of the structure. Is preferably provided.
- the inner wall surface of the hollow body is formed in a state inclined with respect to the vibration direction of the structure.
- a plurality of the vibrating bodies are provided in the hollow body, and that the plurality of vibrating bodies vibrate with different amplitudes when the structure vibrates. .
- the vibrating body is provided so that at least one end projects from the hollow body to the outside through the hollow body.
- the vibrating body provided so as to exert a force on the powder body vibrates in the hollow body, and promotes the movement of the powder body in the hollow body.
- the powder moves more intensely. In this way, the powder particles collide with each other, elastically deform, and rub, so that the vibration energy of the structure can be absorbed, and even if the vibration acceleration is a small vibration of less than 1G, the damping effect is ensured. Can be expressed.
- the granular material moves more vigorously due to the vibration of the vibrating body.
- the powder particles collide with each other, elastically deform, and rub, so that the vibration energy of the structure can be absorbed, and even if the vibration acceleration is a small vibration of less than 1G, the damping effect is ensured. Can be expressed.
- the vibrating body when the vibrating body is attached to the hollow body so that the vibration direction of the vibrating body is different from the vibration direction of the structural body, even if the direction in which the structural body vibrates is the vertical direction, It vibrates in a direction in which the granular material is less affected by gravity, that is, in a direction other than the vertical direction. Therefore, the motion of the powder particles in the hollow body can be surely promoted, and even if the vibration of the structure is small, the vibration damping effect can be expressed more reliably.
- the vibrating body when the vibrating body is provided so that the shape or mass distribution is asymmetric with respect to an axis passing through a point attached to the hollow body and parallel to the vibration direction of the structural body, The vibration body vibrates more reliably and greatly in a direction different from the vibration direction of the structure.
- the vibrating body since the vibrating body is provided so as to have an unbalanced structure with respect to the vibration direction axis of the structure, even if the vibration of the structure to be controlled is small, The vibration control effect can be surely exhibited.
- the powder particles vibrate and convect in the hollow body under the influence of the vibration of the vibration body.
- the body is in contact with the inclined inner wall surface, and the damping effect for the vibration direction of the structure is easily transmitted to the hollow body. As a result, even if the vibration of the structure to be damped is small, the damping effect can be expressed more reliably.
- a plurality of vibrating bodies are provided in the hollow body, and when the plurality of vibrating bodies vibrate with different amplitudes when the structure vibrates, the frequency characteristics of the vibration amplitude of each vibrating body are different. The damping effect can be surely exhibited even for small vibrations in a wider frequency range.
- the vibrating body when the vibrating body is provided so that at least one end projects through the hollow body and protrudes from the hollow body to the outside, the vibrating body is buried in the granular body in the hollow body, and the powder Even when it is difficult to vibrate due to the weight of the granules, the end of the vibrating body protruding into the space outside the hollow body vibrates reliably. As a result, since the vibrating body vibrates, the vibration damping effect can be surely exhibited.
- the damping member 2 is attached to the side surface parallel to the vibration direction of the structure 1 to be damping.
- the damping member 2 is provided in the exterior of the structure 1 used as the damping object, although embodiment which attached the damping member 2 to the side surface of the structure 1 is mainly demonstrated, the upper surface of the structure 1 is demonstrated.
- the structure 1 to be controlled is, for example, a motor or a stator of a generator, a frame structure of a building, or the like.
- the damping member 2 is filled with the granular material 3 leaving a space 4 in a hollow body 5 which is a rectangular parallelepiped container, and is also a rod-shaped or plate-shaped vibrating body 6. Is configured to protrude from the inner wall surface of the hollow body 5 in a cantilever manner.
- the vibrating body 6 is disposed so as to be covered with the powder body 3, and can exert a force in contact with the powder body 3 during vibration. Since the powder body 3 is partially filled in the hollow body 5 leaving the space 4, it can move within the hollow body 5.
- the granular material 3 and the hollow body 5 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. Moreover, the granular material 3 demonstrated by this invention has shown the thing of a granular material or a granular material, and is not only a mixture of a granular material and a granular material, but either a granular material or a granular material. There may be.
- the damping member 2 when vibration in the vertical direction as indicated by the white arrow in both directions occurs in the structure 1, the damping member 2 (hollow body 5) similarly vibrates up and down.
- the powder body 3 in the hollow body 5 also receives vibration from the vibrating body 6, and thus moves more intensely.
- the vibration energy of the structure 1 is converted into energy such as elastic deformation, friction and collision between the particles (powder particles 3) by the more intense movement of the powder particles 3. Therefore, since vibration energy is dissipated, a damping action is exhibited and vibration of the structure 1 is suppressed.
- the vibrating body 6 is configured to resonate in the vibration suppression target frequency band because the powder body 3 can be moved more intensely.
- the damping member 2 is filled with the powder body 3 while leaving the space 4 partially in the hollow body 5 that is a rectangular parallelepiped container, and the vibration body 6 that is a mass body. Is supported between the upper and lower inner wall surfaces of the hollow body 5 via a spring 7. The vibrating body 6 is disposed so as to be covered with the powder body 3.
- Other configurations are the same as those of the embodiment shown in FIG.
- the vibration damping member 2 (hollow body 5) similarly vibrates up and down.
- the vibrating body 6 supported on the wall surface by the spring 7 also vibrates greatly in the vertical direction.
- the powder body 3 in the hollow body 5 is further moved because the movement is promoted by the movement of the vibrating body 6.
- the vibration energy of the structure 1 is converted into energy such as elastic deformation, friction and collision between the particles (powder particles 3). That is, since vibration energy is dissipated, the vibration of the structure 1 is suppressed by the damping action.
- the vibrating body 6 is configured to resonate in the vibration control target frequency band because the powder body 3 can be moved more intensely.
- the spring 7 that supports the vibrating body 6 may be appropriately selected from a metal coil spring, a leaf spring, an elastic resin member such as a disc spring, rubber, and the like depending on the use environment of the damping member 2 and the like.
- the damping member 2 is filled with the granular material 3 while leaving the space 4 partially in the hollow body 5 which is a rectangular parallelepiped container, and is also a rod-shaped or plate-shaped vibrating body. 6 is configured to stand upright so that the bottom surface (inner wall surface) of the hollow body 5 is covered with the granular material 3.
- the vibration control member 2 when vibration in the vertical direction as indicated by the white arrow in both directions occurs in the structure 1 to be controlled, the vibration control member 2 (hollow body 5) similarly vibrates up and down, while the vibration body 6 Swings in the left and right directions starting from the mounting part (lower part).
- the powder body 3 in the hollow body 5 receives lateral vibration due to the lateral movement of the vibrating body 6, so that it is easy to move without being affected by gravity. It will move more violently depending on the direction.
- the motion of the granular material 3 that has become more intense promotes that the vibration energy of the structure 1 is converted into energy such as elastic deformation, friction, and collision between the particles (the granular material 3).
- the vibration of the body 1 is suppressed by the damping action.
- the vibrating body 6 is configured to resonate in the vibration control target frequency band because the powder body 3 can be moved more intensely.
- the rod-like or plate-like vibrating body 6 is erected on the bottom surface orthogonal to the vibration direction of the structure 1, and the vibration body 6 is orthogonal to the vibration direction of the structure 1. Vibrate in the direction.
- the vibration direction of the vibration body 6 may be a direction different from the vibration direction of the structure 1.
- the vibration body 6 may be attached to an inclined bottom surface.
- the hollow body 5 which is a rectangular parallelepiped container, is partially filled with the powder body 3 leaving the space 4, and the rod-like or plate-like vibrating body 6 is made up of the powder grain. It is suspended from the upper surface (inner wall surface) of the hollow body 5 so as to be covered with the body 3.
- the vibration damping member 2 (hollow body 5) similarly vibrates up and down, while the vibration body 6 has its mounting portion (upper part). ) Swings in both the left and right directions. Therefore, the granular material 3 in the hollow body 5 moves more vigorously as in the embodiment shown in FIG. 3, and the vibration damping effect is further increased.
- the upper portion of the vibrating body 6 exists in the space 4 inside the hollow body 5, not in the granular material 3. Therefore, the pressure of the granular material 3 that hinders the movement of the vibrating body 6 to the left and right sides is smaller than that of the embodiment shown in FIG. 3, and even when the structure 1 vibrates further smaller, It will vibrate reliably.
- the vibrating body 6 is configured to resonate in the vibration control target frequency band because the powder body 3 can be moved more intensely. Moreover, the vibrating body 6 may be attached to the inclined upper surface.
- the vibration damping member 2 is a granular material that partially leaves the space 4 in the hollow body 5 that is a rectangular parallelepiped container. 3 is filled, and a rod-like or plate-like vibrating body 6 is erected such that the bottom surface (inner wall surface) of the hollow body 5 is covered with the granular material 3.
- the shape of the vibrating body 6 is asymmetric with respect to an axis that passes through the attachment portion of the vibrating body 6 (the base point of vibration of the vibrating body 6) and is parallel to the vibration direction of the structure 1. Yes.
- the vibrating body 6 is provided so that it may become asymmetrical in the left-right direction of a figure. That is, in the embodiment shown in FIG. 5, the vibrating body 6 has a shape that is inclined with respect to the vibration direction of the structure 1 even when the vibrating body 6 is not vibrating. In the embodiment shown in FIG. 6, the vibrating body 6 has a shape in which the upper end is bent at a right angle.
- the vibrating body 6 is provided so as to have an asymmetric shape in the left-right direction in the figure, and therefore the vibration of the structure 1 to be controlled is in the vertical direction as indicated by the white arrow in both directions.
- the vibration in the lateral direction of the vibrating body 6 is likely to be excited, and the vibrating body 6 vibrates in the lateral direction.
- a greater vibration damping effect can be obtained.
- the vibrating body 6 is configured to resonate in the vibration control target frequency band because the powder body 3 can be moved more intensely.
- FIGS. 7 and 8 The embodiment shown in FIGS. 7 and 8 is similar to the embodiment shown in FIG. 3 in that the damping member 2 is filled with the granular material 3 while leaving the space 4 partially in the hollow body 5 and is in the form of a rod.
- the plate-like vibrating body 6 is configured to stand so as to be covered with the powder body 3 on the bottom surface (inner wall surface) of the hollow body 5.
- the vibrating body 6 does not necessarily have a rod shape or a plate shape, and may be a mass body supported by springs between inner wall surfaces on both sides of the hollow body 5, for example.
- the side surface (inner wall surface) of the hollow body 5 is formed in a state inclined with respect to the vibration direction of the structure 1.
- the inner wall surface of the hollow body 5 is inclined in one direction, and the longitudinal section of the hollow body 5 is a trapezoid with a short lower side.
- the inner wall surface is inclined while changing the inclination direction in the middle, and the vertical cross section of the hollow body 5 is a hourglass shape with a narrowed middle (hourglass shape).
- the vertical cross-sectional shape of the hollow body 5 is such that the side surface (inner wall surface) of the hollow body 5 is inclined with respect to the vibration direction of the structure 1, such as a trapezoid with a short upper side, a parallelogram, and a drum shape with an expanded middle. As long as it is formed, any shape may be sufficient and the side surface (inner wall surface) of the hollow body 5 may be a curved surface.
- the damping member 2 (hollow body 5) is attached to the upper surface of the structure 1.
- the vibrator 6 swings in the left and right directions as shown by the two-way black arrow. Due to the movement of the vibrating body 6, the movement in the left-right direction of the powder body 3 in the hollow body 5 is particularly promoted as in the embodiment shown in FIGS. 3 to 6.
- the vibration of the structure 1 is dissipated as the energy of elastic deformation, friction, collision, etc. between the particles (powder 3) due to the accelerated movement of the powder 3 and the vibration of the structure 1 is suppressed. It will be.
- the powder body 3 convects in the hollow body 5 as indicated by, for example, the unidirectional black arrows shown in FIGS. 7 and 8 (note that convection is shown in FIGS. 6 can also occur in the embodiment shown in FIG.
- Convection causes dissipation of vibration energy due to elastic deformation, friction, collision, etc. between the granular material 3 descending along the inner wall surface of the hollow body 5 and the inner wall surface, but the inner wall surface is inclined.
- the energy dissipation is increased because the descending due to the convection of the granular material 3 and the inclined inner wall surface come into contact with each other at an angle.
- the vibration damping member 2 can more reliably exhibit a large vibration damping effect.
- the vibrating body 6 is configured to resonate in the vibration suppression target frequency band because the powder body 3 can be moved more intensely.
- the vibration damping member 2 is filled with the powder body 3 while leaving the space 4 partially in the hollow body 5 which is a rectangular parallelepiped container, and also has a rod-like or plate-like vibration.
- the body 6 is configured to protrude from the inner wall surface of the hollow body 5 in a cantilever manner.
- the hollow body 5 that is a rectangular parallelepiped container is partially filled with the granular material 3 leaving the space 4, and the vibrating body 6 that is a mass body is a hollow body. 5 is configured to be supported between upper and lower inner wall surfaces via a spring 7.
- a spring 7 Similar to the embodiment shown in FIGS.
- the vibrating body 6 is provided so as to be covered with the granular material 3, but the embodiment shown in FIGS. 1 and 2 is different from the embodiment shown in FIGS. 1 and 2. Differently, a plurality of vibrating bodies 6 are provided in the hollow body 5.
- the plurality of vibrating bodies 6 are configured to vibrate with different amplitudes. Specifically, in the embodiment shown in FIG. 9, the length of the vibrating body 6 is different, and in the embodiment shown in FIG. 10, the mass of the vibrating body 6 is different. By configuring in this way, the frequency characteristics of the vibration amplitude of the vibrating body 6 are different from each other. Compared to the case where only one vibrating body 6 is provided or a plurality of vibrating bodies 6 having the same configuration are provided, A more reliable damping effect can be exhibited even for small vibrations in a wider frequency range.
- the vibrating body 6 is configured to resonate in the vibration suppression target frequency band because the powder body 3 can be moved more intensely.
- the damping member 2 is filled with the granular material 3 while leaving the space 4 partially in the hollow body 5 which is a rectangular parallelepiped container, and is also a rod-shaped or plate-shaped vibrating body.
- 6 is configured so as to penetrate the bottom surface (inner wall surface) of the hollow body 5.
- One end of the vibrating body 6 is covered with the granular material 3 inside the hollow body 5, and the other end protrudes to the outside of the hollow body 5.
- a through-hole that is slightly larger than the cross section of the vibrating body 6 is formed on the bottom surface of the hollow body 5, and a flange (not shown) is formed around the vibrating body 6. Can be provided.
- the dropping of the granular material 3 from the gap between the vibrating body 6 and the through hole can be achieved by making the width of the gap between the vibrating body 6 and the through hole smaller than the diameter of the granular body 3, This can be prevented by covering the gap between the through hole with an elastic body such as rubber.
- the end portion of the vibrating body 6 protruding from the hollow body 5 to the external space is not directly affected by the pressure of the granular material 3. Therefore, even if the vibrating body 6 is completely buried in the hollow body 5 so as to be covered with the powder body 3 and is difficult to vibrate due to the pressure of the powder body, the vibrating body 6 is reliably Can vibrate. Therefore, according to the damping member 2 of this embodiment, the damping effect can be exhibited even when the vibration of the structure 1 is small.
- FIG. 11 corresponds to the embodiment in which the vibrating body 6 of the embodiment shown in FIG. 3 penetrates the inner wall surface of the hollow body 5, but the other embodiment in which the vibrating body 6 is rod-shaped or plate-shaped.
- the present invention can also be applied to the vibrating body 6 having a configuration. Further, both end portions of the vibrating body 6 may protrude into the space outside the hollow body 5 so that the vibrating body 6 pierces both side surfaces (inner wall surfaces on both sides) of the hollow body 5.
- the vibrating body 6 is configured to resonate in the vibration control target frequency band because the powder body 3 can be moved more intensely.
- the structure 1 to be controlled is a stator (stator) of the motor.
- the hollow body 5 (damping member 2) filled with the powder body 3 is not attached to the structure 1 but is built in the stator (structure 1).
- the stator is cylindrical, and a plurality of arc-shaped hollow bodies 5 having the same size and filled with the powder particles 3 are formed at equal intervals in the circumferential direction.
- the plurality of hollow bodies 5 may not necessarily be the same size and may not be formed at equal intervals. .
- each hollow body 5 only one rod-like or plate-like vibrating body 6 is provided inside each hollow body 5.
- inside each hollow body 5. A plurality of rod-like or plate-like vibrating bodies 6 are provided.
- the plurality of vibrating bodies 6 are provided in a so-called radial shape, even when the vibration direction of the stator (structure 1) changes as the rotor (rotor) rotates, the vibration body 6 is stable. A damping effect can be exhibited.
- this invention is applicable also when the structure 1 is a rotor (rotor), a gearwheel, etc.
- the hollow body 5 (damping member 2) filled with the powder particles 3 is accommodated in a rotor (rotor), a gear, or the like. It is possible. Since the rotor and the gear rotate, it is preferable to provide a plurality of rod-like or plate-like vibrating bodies 6 radially as in the embodiment shown in FIG.
- the above embodiment has shown only the case where the vibration direction of the structure 1 is the vertical direction.
- the vibration damping structure according to the present invention works effectively even when vibrating in the direction or rotational vibration.
- the granular material 3 is filled in the closed space is shown in the above-described embodiment, it may not be a complete closed space as long as the granular material 3 does not leak.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
Description
2…制振部材
3…粉粒体
4…空間
5…中空体
6…振動体
7…バネ
Claims (7)
- 制振対象である構造体に制振部材が設けられる制振構造であって、
前記制振部材は、中空体と、前記中空体内に部分的に空間を残して充填されると共に前記構造体が振動する際に前記中空体内で運動する粉粒体と、前記中空体に取り付けられると共に前記構造体が振動する際に前記中空体に対し相対的に振動して前記粉粒体に接して力を及ぼす振動体と、から構成されることを特徴とする制振構造。 - 前記振動体は、前記中空体より大きな振幅または異なる位相で振動することを特徴とする請求項1記載の制振構造。
- 前記振動体の振動方向が前記構造体の振動方向とは異なるように、前記振動体が前記中空体に取り付けられていることを特徴とする請求項1または2記載の制振構造。
- 前記振動体は、前記振動体が前記中空体に取り付けられた点を通ると共に前記構造体の振動方向と平行な軸に対して、形状または質量分布が非対称となるように設けられていることを特徴とする請求項1から3のいずれかに記載の制振構造。
- 前記中空体の内壁面は、前記構造体の振動方向に対して傾いた状態で形成されていることを特徴とする請求項1から4のいずれかに記載の制振構造。
- 前記振動体は前記中空体に複数設けられており、前記構造体が振動する際に前記複数の振動体がそれぞれ異なる振幅で振動するように構成されていることを特徴とする請求項1から5のいずれかに記載の制振構造。
- 前記振動体は、前記中空体を遊貫して少なくとも一方の端部が前記中空体から外部へ突出するように設けられることを特徴とする請求項1から6のいずれかに記載の制振構造。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US13/138,861 US20120024646A1 (en) | 2009-04-09 | 2010-04-09 | Damping structure |
CN201080015832.0A CN102388235B (zh) | 2009-04-09 | 2010-04-09 | 阻尼结构体 |
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JP2009-095081 | 2009-04-09 | ||
JP2009095081A JP5244018B2 (ja) | 2009-04-09 | 2009-04-09 | 制振構造 |
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WO2010117068A1 true WO2010117068A1 (ja) | 2010-10-14 |
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PCT/JP2010/056475 WO2010117068A1 (ja) | 2009-04-09 | 2010-04-09 | 制振構造 |
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US (1) | US20120024646A1 (ja) |
JP (1) | JP5244018B2 (ja) |
CN (1) | CN102388235B (ja) |
WO (1) | WO2010117068A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102319457A (zh) * | 2011-08-25 | 2012-01-18 | 苏州同心医疗器械有限公司 | 一种自阻尼抑制振动的磁悬浮人工心脏血泵转子及制备方法 |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5457918B2 (ja) * | 2009-04-09 | 2014-04-02 | 株式会社神戸製鋼所 | 制振構造 |
DE102012108098A1 (de) | 2012-08-31 | 2014-03-06 | Sandvik Intellectual Property Ab | Schwingungsgedämpftes Werkzeug |
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Also Published As
Publication number | Publication date |
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JP2010242940A (ja) | 2010-10-28 |
CN102388235B (zh) | 2014-06-25 |
US20120024646A1 (en) | 2012-02-02 |
CN102388235A (zh) | 2012-03-21 |
JP5244018B2 (ja) | 2013-07-24 |
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