JP2011202768A - Magnetic multiple dynamic vibration absorber - Google Patents

Magnetic multiple dynamic vibration absorber Download PDF

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JP2011202768A
JP2011202768A JP2010072507A JP2010072507A JP2011202768A JP 2011202768 A JP2011202768 A JP 2011202768A JP 2010072507 A JP2010072507 A JP 2010072507A JP 2010072507 A JP2010072507 A JP 2010072507A JP 2011202768 A JP2011202768 A JP 2011202768A
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JP5178763B2 (en
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Yasuhiko Aida
安彦 相田
Yuji Maeda
祐治 前田
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Toshiba Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a magnetic multiple dynamic vibration absorber which is reduced in size and exhibits a high freedom degree in design by eliminating part of a back yoke constituting a magnetic circuit.SOLUTION: The magnetic multiple dynamic vibration absorber includes a fixed part structure body 3 fixed on a vibration control target 1, upper and lower fixed part magnet rows 9 fixed to the upper part and the lower part of the fixed part structure body 3 through a fixed part back york 8, a first movable part structure body 15 constituted by a non-magnetic body arranged inside the fixed part structure body 3, upper and lower first movable part magnet rows 19 fixed on the upper part and the lower part of the first movable part structure body 15 to confront the fixed part magnet row 9, a second movable part structure body 18 constituted of a non-magnetic body arranged inside the first movable part structure body 15, a second movable part magnet row 20 fixed to the second movable part structure body 18 to confront the upper and lower first movable part magnet rows 19, and a conductor plate 25 arranged in a gap between the upper and lower first movable part magnet rows 19 and the second movable part magnet row 20.

Description

本発明は構造物や各種機器の制振装置に関し、特に、可動重量と永久磁石と導体板を用いた磁気式多重動吸振器に関する。   The present invention relates to a vibration damping device for structures and various devices, and more particularly, to a magnetic multiple motion vibration absorber using a movable weight, a permanent magnet, and a conductor plate.

従来の動吸振器の構造を図９乃至図１１により説明する。
図９に示す従来の動吸振器は、制振対象物となるばね要素ｋ、減衰要素ｃで振動している主系質量体Ｍに付加質量体ｍ２をばね要素ｋ２と減衰要素ｃ２を介して直接取り付けたうえ、付加するパラメータｍ２,ｋ２,ｃ２を制振対象物に対して最適に選択することにより振動抑制効果を得るものである。 The structure of a conventional dynamic vibration absorber will be described with reference to FIGS.
Conventional dynamic vibration absorber shown in FIG. 9, the spring elements become damping object k, attenuate additional mass body m 2 in the main system mass M which is vibrating in damping element c and the spring element k 2 elements c 2 In addition, a vibration suppression effect is obtained by optimally selecting parameters m 2, k 2, and c 2 to be added to the object to be controlled.

また、図１０に示す直列二重動吸振器では、主系質量体Ｍと第一動吸振器の付加質量体ｍ１の間にはばね要素ｋ１で減衰要素を設けず、付加質量体ｍ２、ばね要素ｋ２、減衰要素ｃ２からなる第二動吸振器を取り付けることにより減衰を得るものであり、この直列二重動吸振器は特許文献１に示されるように従来の直列二重動吸振器と比べて振動抑制効果が高いことが知られている。ただし、図１０に示す直列二重動吸振器は、大型建造物を対象としており、小型の機械構造物や機器に適用することは想定していない。 Further, in the series double dynamic vibration absorber shown in FIG. 10, no damping element is provided by the spring element k 1 between the main mass M and the additional mass m 1 of the first dynamic vibration absorber, and the additional mass m 2 , damping is obtained by attaching a second dynamic vibration absorber comprising a spring element k 2 and a damping element c 2 , and this series double dynamic vibration absorber is a conventional series double vibration absorber as disclosed in Patent Document 1. It is known that the vibration suppressing effect is higher than that of the dynamic vibration absorber. However, the series double dynamic vibration absorber shown in FIG. 10 is intended for a large building and is not assumed to be applied to a small mechanical structure or device.

一方、小型の機械構造物や機器に適用できる動吸振器として、複数の永久磁石と導体板と可動重量とを用いてばね要素ｋ２と減衰要素ｃ２を構成した磁気式動吸振器が提案されている（特許文献２、３）。 On the other hand, as a dynamic vibration absorber that can be applied to small mechanical structures and devices, a magnetic dynamic vibration absorber is proposed in which a spring element k 2 and a damping element c 2 are configured using a plurality of permanent magnets, a conductor plate, and a movable weight. (Patent Documents 2 and 3).

この磁気式動吸振器は、図１１に示すように、複数の磁石４を隣接する磁石が異磁極となるように縦横に配置し、磁性材である可動部バックヨーク５に固定することで可動部磁石列６を構成し、非磁性材からなる可動部構造体２の上下両側に固定している。複数の磁石７も隣接する磁石が異磁極となるように、可動部磁石列６と同一配置にて磁性材である固定部バックヨーク８に固定することで固定部磁石列９を構成し、一定の隙間１０を介して全ての可動磁石４と固定磁石７が異磁極となるように可動部磁石列６に対向させ、固定部構造体３に固定している。また、固定部構造体３は制振対象物１に直接固定されている。   As shown in FIG. 11, this magnetic dynamic vibration absorber is movable by arranging a plurality of magnets 4 vertically and horizontally so that adjacent magnets have different magnetic poles and fixing them to a movable part back yoke 5 which is a magnetic material. The partial magnet row 6 is configured and fixed on both upper and lower sides of the movable part structure 2 made of a nonmagnetic material. A plurality of magnets 7 are also fixed to a fixed portion back yoke 8 that is a magnetic material in the same arrangement as the movable portion magnet row 6 so that adjacent magnets have different magnetic poles, thereby constituting a fixed portion magnet row 9 and fixed. The movable part magnet array 6 is opposed to the movable part magnet array 6 so that all the movable magnets 4 and the fixed magnets 7 have different magnetic poles through the gap 10 and fixed to the fixed part structure 3. Further, the fixed portion structure 3 is directly fixed to the vibration control object 1.

さらに、上下の隙間１０にそれぞれ導体板１１を配置するとともに、可動部構造体２と固定部構造体３の間には、ベアリング球１２が受け座１３からなるベアリング機構３３が設置されている。なお、図１１の矢印１４は磁束の流れである。   Furthermore, the conductor plates 11 are disposed in the upper and lower gaps 10, and a bearing mechanism 33 including a bearing ball 12 and a receiving seat 13 is installed between the movable part structure 2 and the fixed part structure 3. In addition, the arrow 14 of FIG. 11 is the flow of magnetic flux.

このように構成された磁気式動吸振器は、可動部構造体２が固定部構造体３に対し相対移動する場合、すなわち対向する可動部磁石列６と固定部磁石列９の位置がずれる場合、対向する磁石間に作用する磁気吸引力と磁気反発力が図１のばね要素ｋ２になる。さらに、対向磁石どうしのずれ運動にともない、隙間の磁束１４が導体板１１に対し相対運動することで減衰要素ｃ２になっている。 In the magnetic dynamic vibration absorber configured as described above, when the movable part structure 2 moves relative to the fixed part structure 3, that is, when the positions of the movable part magnet row 6 and the fixed part magnet row 9 which are opposed to each other shift. magnetic attraction force acting between opposing magnets and magnetic repulsion force is a spring element k 2 of FIG. Further, with the shift movement of each other facing the magnet, which is the damping element c 2 by the magnetic flux 14 of the gap is relative motion with respect to the conductive plate 11.

このように永久磁石と導体板と可動重量からなる単純な構成により、動吸振器に必要な復元力と減衰力が同時に得られるため、コイルばね、オイルダンパ等の機械要素を各々配置していた方式に比べ、動吸振器の小型化が可能となっている。   As described above, since a simple configuration including a permanent magnet, a conductive plate, and a movable weight can simultaneously obtain a restoring force and a damping force necessary for the dynamic vibration absorber, mechanical elements such as a coil spring and an oil damper have been arranged. Compared with the method, the dynamic vibration absorber can be downsized.

特開２００４−２３９３２３号公報JP 2004-239323 A 特許第３７１８３０７号公報Japanese Patent No. 3718307 特許第４０４０１２３号公報Japanese Patent No. 4040123

上述した複数の永久磁石と導体板と可動重量を用いてばね要素と減衰要素を構成する磁気式動吸振器は一段構成の動吸振方式であるが、これを多重動吸振器構成にする場合、従来の動吸振方式をそのまま多重化すると、複数の磁石を全てバックヨークに固定して磁気回路を構成しているため、バックヨークの物量が膨大となる。そのため、設計自由度が制限され、小型の機械構造物等に適用可能な動吸振器を構成する際に、第１動吸振器の付加質量体ｍ１、ばね要素ｋ１及び第２動吸振器の付加質量体ｍ２、ばね要素ｋ２、減衰要素ｃ２を最適に設定することが困難となる場合がある。 The magnetic dynamic vibration absorber that constitutes the spring element and the damping element using the plurality of permanent magnets, the conductive plate, and the movable weight described above is a single-stage dynamic vibration absorption system. If the conventional dynamic vibration absorption method is multiplexed as it is, a plurality of magnets are all fixed to the back yoke to constitute a magnetic circuit, so that the amount of the back yoke becomes enormous. Therefore, when a dynamic vibration absorber that can be applied to a small mechanical structure or the like is configured with a limited degree of design freedom, the additional mass body m 1 , the spring element k 1, and the second dynamic vibration absorber of the first dynamic vibration absorber It may be difficult to optimally set the additional mass body m 2 , the spring element k 2 , and the damping element c 2 .

本発明は上記課題を解決するためになされたものであり、第１動吸振器のばね要素となる磁石と第二動吸振器のばね要素となる磁石を一部共用することで、磁気回路を構成するバックヨークの一部を省略し、これにより、小型で設計自由度の高い磁気式多重動吸振器を提供することを目的とする。   The present invention has been made in order to solve the above-described problems, and by partially sharing a magnet that is a spring element of the first dynamic vibration absorber and a magnet that is a spring element of the second dynamic vibration absorber, a magnetic circuit is provided. It is an object of the present invention to provide a magnetic multi-acting vibration absorber that is small and has a high degree of design freedom by omitting a part of the configured back yoke.

本発明は上記課題を解決するためになされたもので、制振対象物に固定された固定部構造体と、前記固定部構造体の上部及び下部に固定部バックヨークを介して固定された上部及び下部の固定部磁石列と、前記固定部構造体の内部に設置された非磁性体からなる第１可動部構造体と、前記固定部磁石列と対向するように前記第１可動部構造体の上部及び下部に固定された上部及び下部の第１可動部磁石列と、前記第１可動部構造体の内部に設置された非磁性体からなる第２可動部構造体と、前記上部及び下部の第１可動磁石列と対向するように前記第２可動部構造体に固定された第２可動部磁石列と、前記上部及び下部の第１可動部磁石列と前記第２可動部磁石列との間の隙間に配置された導体板と、を有することを特徴とする。   The present invention has been made to solve the above-described problems, and includes a fixed portion structure fixed to an object to be damped, and an upper portion fixed to an upper portion and a lower portion of the fixed portion structure via a fixed portion back yoke. And a lower fixed portion magnet row, a first movable portion structure made of a non-magnetic material installed inside the fixed portion structure, and the first movable portion structure so as to face the fixed portion magnet row. Upper and lower first movable part magnet arrays fixed to the upper and lower parts of the first movable part structure, a second movable part structure made of a non-magnetic material installed inside the first movable part structure, and the upper and lower parts A second movable portion magnet row fixed to the second movable portion structure so as to face the first movable magnet row, an upper and lower first movable portion magnet row, and a second movable portion magnet row, And a conductor plate disposed in a gap between the two.

また、本発明は、制振対象物に固定された固定部構造体と、前記固定部構造体の上部及び下部に固定部バックヨークを介して固定された上部及び下部の固定部磁石列と、前記固定部構造体の内部に設置され、上部及び下部に導体板が設けられた第１可動部構造体と、前記固定部磁石列と対向するように前記導体板に固定された上部及び下部の第１可動部磁石列と、前記第１可動部構造体の内部に設置された非磁性体からなる第２可動部構造体と、前記上部及び下部の第１可動磁石列に対向するよう前記第２可動部構造体に固定された第２可動部磁石列と、を有することを特徴とする。   The present invention also includes a fixed part structure fixed to a vibration control object, and upper and lower fixed part magnet rows fixed to an upper part and a lower part of the fixed part structure via a fixed part back yoke, A first movable part structure installed inside the fixed part structure and provided with conductor plates on the upper and lower sides; an upper part and a lower part fixed to the conductor plate so as to face the fixed part magnet row; The first movable part magnet array, the second movable part structure made of a non-magnetic material installed inside the first movable part structure, and the first movable magnet structure facing the upper and lower first movable magnet arrays. And a second movable part magnet row fixed to the two movable part structures.

また、本発明は、制振対象物に固定部バックヨークを介して固定された固定部磁石列と、第２可動部構造体に第２可動部バックヨークを介して固定された第１可動部磁石列と、前記制振対象物と前記第２可動部構造体の間に配置された非磁性体からなる第１可動部構造体と、前記固定部磁石列及び前記第２可動部磁石列に対向するように第１可動部構造体に固定された第１可動部磁石列と、前記第１可動部磁石列と前記第２可動部磁石列との間の隙間に配置された導体板と、を有することを特徴とする。   The present invention also provides a fixed part magnet array fixed to the object to be controlled via the fixed part back yoke, and a first movable part fixed to the second movable part structure via the second movable part back yoke. A magnet row, a first movable portion structure made of a non-magnetic material disposed between the vibration suppression object and the second movable portion structure, and the fixed portion magnet row and the second movable portion magnet row. A first movable part magnet row fixed to the first movable part structure so as to oppose, a conductor plate disposed in a gap between the first movable part magnet row and the second movable part magnet row, It is characterized by having.

本発明によれば、第１動吸振器のばね要素となる磁石と第２動吸振器のばね要素となる磁石を一部共用することで、磁気回路を構成するバックヨークの一部を省略し、これにより、小型で設計自由度の高い磁気式多重動吸振器を提供することができる。   According to the present invention, the magnet serving as the spring element of the first dynamic vibration absorber and the magnet serving as the spring element of the second dynamic vibration absorber are partially shared, thereby omitting a part of the back yoke constituting the magnetic circuit. Thus, it is possible to provide a magnetic multi-motion vibration absorber that is small and has a high degree of design freedom.

本発明の第１の実施形態に係る磁気式多重動吸振器の縦断面図。1 is a longitudinal sectional view of a magnetic multiple motion vibration absorber according to a first embodiment of the present invention. 本発明の第２の実施形態に係る磁気式多重動吸振器の縦断面図。The longitudinal cross-sectional view of the magnetic multiple dynamic vibration absorber which concerns on the 2nd Embodiment of this invention. 本発明の第２の実施形態に係る磁気式多重動吸振器の変形例の縦断面図。The longitudinal cross-sectional view of the modification of the magnetic type multi-motion vibration absorber which concerns on the 2nd Embodiment of this invention. （ａ）は本発明の第３の実施形態に係る磁気式多重動吸振器の縦断面図、（ｂ）は横断面図。(A) is a longitudinal cross-sectional view of the magnetic multiple dynamic vibration absorber which concerns on the 3rd Embodiment of this invention, (b) is a cross-sectional view. （ａ）は本発明の第３の実施形態に係る磁気式多重動吸振器の変形例の縦断面図、（ｂ）は横断面図。(A) is a longitudinal cross-sectional view of the modification of the magnetic multi-acting vibration absorber which concerns on the 3rd Embodiment of this invention, (b) is a cross-sectional view. 本発明の第４実施形態に係る磁気式多重動吸振器の縦断面図。The longitudinal cross-sectional view of the magnetic multiple dynamic vibration absorber which concerns on 4th Embodiment of this invention. 本発明の第５の実施形態に係る磁気式多重動吸振器の縦断面図。The longitudinal cross-sectional view of the magnetic multiple dynamic vibration absorber which concerns on the 5th Embodiment of this invention. 本発明の第５の実施形態に係る磁気式多重動吸振器の変形例の縦断面図。The longitudinal cross-sectional view of the modification of the magnetic type multi-motion vibration absorber which concerns on the 5th Embodiment of this invention. 従来の動吸振器の概念図。The conceptual diagram of the conventional dynamic vibration absorber. 従来の直列二重動吸振器の概念図。The conceptual diagram of the conventional series double dynamic vibration absorber. 従来の磁気式動吸振器の縦断面図。The longitudinal cross-sectional view of the conventional magnetic type dynamic vibration absorber.

以下、本発明に係る磁気式多重動吸振器の実施形態を、図面を参照して説明する。
［第１の実施形態］
（構成）
本発明の第１の実施形態に係る磁気式多重動吸振器を、図１を用いて説明する。
第１の実施形態に係る磁気式多重動吸振器は、制振対象物１に直接固定された固定部構造体３と、この固定部構造体３の内部に設置された非磁性材からなる第１可動部構造体１５と、この第１可動部構造体１５の内部に設置された非磁性材からなる第２可動部構造体１８とから構成される。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a magnetic multi-motion vibration absorber according to the present invention will be described below with reference to the drawings.
[First Embodiment]
(Constitution)
A magnetic multiple motion vibration absorber according to a first embodiment of the present invention will be described with reference to FIG.
The magnetic multi-motion vibration absorber according to the first embodiment includes a fixed part structure 3 directly fixed to the vibration control object 1 and a nonmagnetic material that is installed inside the fixed part structure 3. The first movable part structure 15 and the second movable part structure 18 made of a nonmagnetic material and installed inside the first movable part structure 15 are configured.

第１可動部構造体１５の上部及び下部には、隣接する磁石が異磁極となるように複数の磁石１６を図中上方向から見て縦横に配列された上部及び下部の第１可動部磁石列１７が配置固定され、この上部及び下部の第１可動部磁石列１７に対向して、第２可動部構造体１８には、複数の磁石１９を隣接する磁石が異磁極となるように縦横に配列された第２可動部磁石列２０が配置されている。また、固定部構造体３の上部及び下部には、固定部バックヨーク８を介して複数の磁石７を隣接する磁石が異磁極となるように図中上方向から見て縦横に配列された上部及び下部の固定部磁石列９が配置固定されている。   The upper and lower first movable part magnets in which the plurality of magnets 16 are arranged vertically and horizontally as viewed from above in the figure so that adjacent magnets have different magnetic poles on the upper and lower parts of the first movable part structure 15. A row 17 is arranged and fixed, facing the upper and lower first movable portion magnet rows 17, the second movable portion structure 18 has a plurality of magnets 19 arranged vertically and horizontally so that adjacent magnets have different magnetic poles. 2nd movable part magnet row | line | column 20 arranged in this is arrange | positioned. Further, an upper portion and a lower portion of the fixed portion structure 3 are arranged with a plurality of magnets 7 arranged vertically and horizontally as viewed from above in the figure so that adjacent magnets have different magnetic poles via the fixed portion back yoke 8. And the fixed part magnet row 9 at the bottom is arranged and fixed.

そして、固定部磁石列９に対向する第１可動部磁石列１７、及び第１可動部磁石列１７に対向する第２可動部磁石列１８は、それぞれ同一配置とし、所定の隙間２１、２２を挟んで同一形状を持つ異磁極が対向する構成となっている。   The first movable portion magnet row 17 facing the fixed portion magnet row 9 and the second movable portion magnet row 18 facing the first movable portion magnet row 17 are arranged in the same manner, and predetermined gaps 21 and 22 are formed. The different magnetic poles having the same shape are opposed to each other.

また、固定部構造体３と第１可動部構造体１５の間には、ベアリング球２３と受け座２４からなるベアリング機構３４が設置され、これにより隙間２１を保持している。同様に、第１可動部構造体１５と第２可動部構造体１８の間には、ベアリング球２６と受け座２７からなるベアリング機構３５が設置され、これにより隙間２２を保持している。また、この隙間２２には導体板２５が配置されている。なお、図１の矢印２８は磁束の流れを示している。   Further, a bearing mechanism 34 including a bearing ball 23 and a receiving seat 24 is installed between the fixed portion structure 3 and the first movable portion structure 15, thereby holding the gap 21. Similarly, a bearing mechanism 35 including a bearing ball 26 and a receiving seat 27 is installed between the first movable part structure 15 and the second movable part structure 18, thereby holding the gap 22. A conductor plate 25 is disposed in the gap 22. An arrow 28 in FIG. 1 indicates the flow of magnetic flux.

（作用）
上記のように構成された磁気式多重動吸振器において、第１可動部構造体１５が固定部構造体３に対し相対移動する場合、すなわち対向する第１可動部磁石列１７と固定部磁石列９の磁石の位置がずれる場合、対向する磁石１６、７間に作用する磁気吸引力と磁気反発力が図１０のばね要素ｋ１になり、第１動吸振器を構成する。また、第２可動部構造体１８が第１可動部構造体１５に対し相対移動する場合、すなわち対向する第２可動部磁石列１８の磁石１９と第１可動部磁石列１７の磁石１６の位置がずれる場合、対向する磁石１６、１９間に作用する磁気吸引力と磁気反発力が図１０のばね要素ｋ２になるとともに、対向磁石どうしのずれ運動に伴い、隙間２２の磁束２８が導体板２５に対し相対運動することで減衰要素ｃ２になっている。これにより第２動吸振器を構成する。 (Function)
In the magnetic multiple dynamic vibration absorber configured as described above, when the first movable part structure 15 moves relative to the fixed part structure 3, that is, the first movable part magnet row 17 and the fixed portion magnet row that face each other. If 9 position of magnet is shifted, the magnetic attractive force acting between the opposed magnets 16, 7 and the magnetic repulsion force is a spring element k 1 in FIG. 10, constituting the first dynamic vibration absorber. When the second movable part structure 18 moves relative to the first movable part structure 15, that is, the positions of the magnets 19 of the second movable part magnet row 18 and the magnets 16 of the first movable part magnet row 17 that face each other. When the two magnets deviate from each other, the magnetic attractive force and the magnetic repulsive force acting between the opposing magnets 16 and 19 become the spring element k2 in FIG. It has become damping element c 2 by relative movement with respect to 25. This constitutes a second dynamic vibration absorber.

このように、第１可動部磁石列１７と第２可動部磁石列２０はいずれも非磁性材である第１可動部構造体１５と第２可動部構造体１８に固定することにより、第１可動部磁石列１７は固定部磁石列９と対向することでばね要素ｋ１を構成すると同時に、第２可動部磁石列２０と対向することでばね要素ｋ２を構成している。これにより、第１動吸振器のばね要素となる複数の磁石と第２動吸振器のばね要素となる複数の磁石を一部共用することで、磁束の流れを効率化し、磁気回路を構成するバックヨークの一部を省略することができる。すなわち、第２可動部磁石列２０の両側の第１可動構造体１５に第一可動部磁石列１７を配置することで、バックヨークを省略して磁束の流れを効率化し、限られたスペースにて並列化してより大きなばね要素ｋ２が得られる。 As described above, the first movable part magnet array 17 and the second movable part magnet array 20 are both fixed to the first movable part structure 15 and the second movable part structure 18 which are non-magnetic materials, so that the first The movable part magnet row 17 constitutes the spring element k 1 by facing the fixed part magnet row 9 and at the same time constitutes the spring element k 2 by facing the second movable part magnet row 20. Thereby, the flow of magnetic flux is made more efficient by partially sharing the plurality of magnets serving as the spring elements of the first dynamic vibration absorber and the plurality of magnets serving as the spring elements of the second dynamic vibration absorber, thereby configuring a magnetic circuit. A part of the back yoke can be omitted. That is, by arranging the first movable part magnet row 17 on the first movable structure 15 on both sides of the second movable part magnet row 20, the back yoke is omitted and the flow of magnetic flux is made efficient, and the space is limited. large spring element k 2 more in parallel Te is obtained.

（効果）
以上説明したように、本第１の実施形態によれば、上部及び下部の第一可動部磁石列１７を固定部磁石列９に対向させるとともに、導体板２５を介して第２可動部磁石列２０に対向させることで第１及び第２動吸振器を構成し、これにより、第１動吸振器の付加質量体ｍ１、ばね要素ｋ１および、第２動吸振器の付加質量体ｍ２、ばね要素ｋ２、減衰要素ｃ２を最適設定することが可能となり、小型の機械構造物等に適用可能な小型で設計自由度の高い磁気式多重動吸振器を提供することができる。 (effect)
As described above, according to the first embodiment, the upper and lower first movable portion magnet rows 17 are opposed to the fixed portion magnet row 9 and the second movable portion magnet row is disposed via the conductor plate 25. The first and second dynamic vibration absorbers are configured to face each other, and thereby, the additional mass body m 1 of the first dynamic vibration absorber, the spring element k 1, and the additional mass body m 2 of the second dynamic vibration absorber. The spring element k 2 and the damping element c 2 can be optimally set, and a small-sized magnetic multi-acting vibration absorber that can be applied to a small mechanical structure or the like can be provided.

［第２の実施形態］
本発明の第２の実施形態に係る磁気式多重動吸振器を、図２及び図３を用いて説明する。
本第２の実施形態では、第１可動部磁石列１７を構成する磁石１６の断面形状を固定部磁石列９側と第２可動部磁石列２０側で変化させた上、隙間２１を介して固定部磁石列９の磁石７と対向する部分は磁石７と同一形状とし、隙間２２を介して第２可動部磁石列の磁石１９と対向する部分は磁石１９と同一形状としている。第１可動部磁石列１７の磁石１６の断面形状の変化が傾斜状の場合と階段状の場合を図２及び図３に各々図示している。 [Second Embodiment]
A magnetic multiple motion vibration absorber according to a second embodiment of the present invention will be described with reference to FIGS.
In the second embodiment, the cross-sectional shape of the magnets 16 constituting the first movable part magnet row 17 is changed on the fixed portion magnet row 9 side and the second movable portion magnet row 20 side, and the gap 21 is interposed. The portion of the fixed portion magnet row 9 facing the magnet 7 has the same shape as the magnet 7, and the portion of the second movable portion magnet row facing the magnet 19 through the gap 22 has the same shape as the magnet 19. FIGS. 2 and 3 respectively show the case where the change in the cross-sectional shape of the magnet 16 of the first movable portion magnet row 17 is an inclined shape and a step shape.

本第２の実施形態によれば、磁気復元力を得るための可動磁石の断面形状を調整することにより、第１動吸振器のばね要素ｋ１と第２動吸振器のばね要素ｋ２のばね定数及び減衰要素ｃ２をさらに最適設定することが可能となる。 According to the second embodiment, by adjusting the cross-sectional shape of the movable magnet for obtaining the magnetic restoring force, the spring element k 1 of the first dynamic vibration absorber and the spring element k 2 of the second dynamic vibration absorber are adjusted. can be further optimized set the spring constant and damping element c 2 become.

［第３の実施形態］
本発明の第３の実施形態に係る磁気式多重動吸振器を、図４（ａ）、（ｂ）及び図５（ａ）、（ｂ）を用いて説明する。 [Third Embodiment]
A magnetic multiple motion vibration absorber according to a third embodiment of the present invention will be described with reference to FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) and 5 (b).

上記第１の実施形態では、第１可動部磁石列１７と第２可動部磁石列２０はバックヨークを用いずに、全て非磁性材である第１可動部構造体１５と第２可動部構造体１８に固定しているのに対し、本第３の実施形態では、第１可動部磁石列１７の磁石１６の一部を第１可動部バックヨーク２９に固定するとともに、他の磁石１６は非磁性材である第１可動部構造体１５に固定している。ここで、図４（ａ）、（ｂ）に示す実施形態では第１可動部バックヨーク２９は第１可動部磁石列１７の周辺部に、図５（ａ）、（ｂ）に示す実施形態では第１可動部磁石列１７の中央部に配置されているが、これに限定されず周辺部と中央部の両方または必要に応じて他の位置に配置してもよい。
また、第２可動部磁石列２０は、第１可動部構造体１５に固定した磁石１６に対向する位置にのみ磁石１９を配置し、第２可動部構造体１８に固定している。 In the first embodiment, the first movable portion magnet row 17 and the second movable portion magnet row 20 do not use a back yoke, and the first movable portion structure 15 and the second movable portion structure, which are all non-magnetic materials. In the third embodiment, a part of the magnet 16 of the first movable part magnet row 17 is fixed to the first movable part back yoke 29 and the other magnets 16 are fixed to the body 18. It is fixed to the first movable part structure 15 which is a nonmagnetic material. Here, in the embodiment shown in FIGS. 4A and 4B, the first movable part back yoke 29 is arranged around the first movable part magnet row 17 in the embodiment shown in FIGS. 5A and 5B. Then, although arrange | positioned in the center part of the 1st movable part magnet row | line | column 17, it is not limited to this, You may arrange | position to other positions as needed both in a periphery part and a center part.
In the second movable part magnet row 20, the magnet 19 is arranged only at a position facing the magnet 16 fixed to the first movable part structure 15, and is fixed to the second movable part structure 18.

本第３の実施形態によれば、第２動吸振器のばね要素ｋ２に用いる磁石物量を調整することにより、より広い範囲でばね要素ｋ２のばね定数を自由に設定することができる。 According to the third embodiment, by adjusting the magnet amount to be used for the spring element k 2 of the second dynamic vibration absorber, the spring constant of the spring element k 2 can be freely set in a wider range.

［第４の実施形態］
本発明の第４の実施形態に係る磁気式多重動吸振器を、図６を用いて説明する。
本第４の実施形態では、第１可動部磁石列１７の磁石１６を導体板３０に直接固定し、第１可動部磁石列１７を構成するとともに、導体板３０を非磁性材である支持柱３１に結合することで、第１可動部構造体１５を構成している。 [Fourth Embodiment]
A magnetic multiple motion vibration absorber according to a fourth embodiment of the present invention will be described with reference to FIG.
In the fourth embodiment, the magnet 16 of the first movable part magnet row 17 is directly fixed to the conductor plate 30 to form the first movable portion magnet row 17 and the conductor plate 30 is a support column made of a nonmagnetic material. The first movable part structure 15 is configured by being coupled to 31.

本第４の実施形態によれば、導体板３０が第１可動部構造体１５の構造部材を兼用することで、構造部材をさらに省略できる。したがって、第１動吸振器の付加質量体ｍ１の設定自由度が拡がり、さらに磁気式多重動吸振器の小型化を実現することができる。 According to the fourth embodiment, since the conductor plate 30 also serves as the structural member of the first movable part structure 15, the structural member can be further omitted. Therefore, it is possible to freely set the degree of the additional mass body m 1 of the first dynamic vibration absorber spreads further downsized magnetic multi dynamic vibration absorber.

［第５の実施形態］
本発明の第５の実施形態に係る磁気式多重動吸振器を、図７及び図８を用いて説明する。
本第５の実施形態では、図７に示すように、第１可動部磁石列１７の複数の磁石１６を隣接する磁石が異磁極となるように、非磁性材からなる第一可動部構造体１５に図中上方向から見て縦横に配置固定して、第１可動部磁石列１７を構成するとともに、制振対象物１に固定した固定部磁石列９と同一配置とし、その上部に設置する。 [Fifth Embodiment]
A magnetic multiple motion vibration absorber according to a fifth embodiment of the present invention will be described with reference to FIGS.
In the fifth embodiment, as shown in FIG. 7, the first movable part structure made of a non-magnetic material so that the magnets adjacent to the plurality of magnets 16 of the first movable part magnet row 17 have different magnetic poles. 15 is arranged and fixed vertically and horizontally as viewed from above in the figure to constitute the first movable part magnet row 17 and the same arrangement as the fixed portion magnet row 9 fixed to the object 1 to be damped, and installed above it. To do.

第１可動部磁石列１７の磁石１６と固定部磁石列９の磁石７は一定の隙間２１を介して、同一形状を持つ異磁極が対向する構成となっている。さらに、非磁性材からなる第２可動部構造体１８に、複数の磁石１９を磁性材である第２可動部バックヨーク３２を介して隣接する磁石が異磁極となるように縦横に配置固定し、第２可動部磁石列２０を第１可動部磁石列１７の上部に設置する。第１可動部磁石列１７の磁石１６と第２可動部磁石列２０の磁石１９は一定の隙間２２を介して、同一形状を持つ異磁極が対向する構成となっている。   The magnets 16 of the first movable part magnet row 17 and the magnets 7 of the fixed part magnet row 9 are configured such that different magnetic poles having the same shape are opposed to each other with a certain gap 21 therebetween. Furthermore, a plurality of magnets 19 are fixed to the second movable part structure 18 made of a non-magnetic material vertically and horizontally so that adjacent magnets have different magnetic poles via the second movable part back yoke 32 that is a magnetic material. The second movable part magnet row 20 is installed above the first movable portion magnet row 17. The magnets 16 of the first movable part magnet row 17 and the magnets 19 of the second movable part magnet row 20 are configured such that different magnetic poles having the same shape are opposed to each other through a certain gap 22.

図８に示す実施形態では、第１可動部磁石列１７の磁石１６の一部を第１可動部ヨーク２９に固定するとともに、他の磁石１６は非磁性材である第１可動部構造体１５に固定している。さらに第２可動部磁石列２０は、第１可動部構造体１５に固定した磁石１６に対向する位置にのみ磁石１９を配置し、第２可動部構造体１８に固定している。   In the embodiment shown in FIG. 8, a part of the magnets 16 of the first movable part magnet row 17 is fixed to the first movable part yoke 29, and the other magnets 16 are the first movable part structure 15 which is a nonmagnetic material. It is fixed to. Further, in the second movable part magnet row 20, the magnet 19 is disposed only at a position facing the magnet 16 fixed to the first movable part structure 15, and is fixed to the second movable part structure 18.

本第５の実施形態によれば、第１及び第２動吸振器の構成を単純化することができるため、第１及び第２動吸振器の構成パラメータの設定自由度が拡がり、さらに磁気式多重動吸振器の小型化を実現することができる。   According to the fifth embodiment, since the configurations of the first and second dynamic vibration absorbers can be simplified, the degree of freedom in setting the configuration parameters of the first and second dynamic vibration absorbers is increased, and the magnetic type is further improved. Miniaturization of the multiple dynamic vibration absorber can be realized.

なお、第１から第５の実施形態において、図４（ｂ）に示すように磁石を水平面から見て縦横に配列した例で示したが、同心円状に矩形状の磁石を配列してもよく、また、円筒状の磁石を同心円状に配置しても良いのはもちろんである。   In the first to fifth embodiments, as shown in FIG. 4B, magnets are arranged vertically and horizontally as viewed from the horizontal plane, but rectangular magnets may be arranged concentrically. Of course, the cylindrical magnets may be arranged concentrically.

１…制振対象物、２…可動部構造体、３…固定部構造体、４…磁石、５…可動部バックヨーク、６…可動部磁石列、７…磁石、８…固定部バックヨーク、９…固定部磁石列、１０…隙間、１１…導体板、１２…ベアリング球、１３…受け座、１４…磁束の流れ、１５…第１可動部構造体、１６…磁石、１７…第１可動部磁石列、１８…第２可動部構造体、１９…磁石、２０…第２可動部磁石列、２１、２２…隙間、２３、２６…ベアリング球、２４、２７…受け座、２５…導体板、１４、２８…磁束の流れ、２９…第１可動部バックヨーク、３０…導体板、３１…支持柱、３２…第２可動部バックヨーク、３３、３４、３５…ベアリング機構。   DESCRIPTION OF SYMBOLS 1 ... Damping target object, 2 ... Movable part structure, 3 ... Fixed part structure, 4 ... Magnet, 5 ... Movable part back yoke, 6 ... Movable part magnet row, 7 ... Magnet, 8 ... Fixed part back yoke, DESCRIPTION OF SYMBOLS 9 ... Fixed part magnet row, 10 ... Gap, 11 ... Conductor plate, 12 ... Bearing ball, 13 ... Receiving seat, 14 ... Flow of magnetic flux, 15 ... First movable part structure, 16 ... Magnet, 17 ... First movable Partial magnet row, 18 ... second movable part structure, 19 ... magnet, 20 ... second movable part magnet row, 21, 22 ... gap, 23, 26 ... bearing balls, 24, 27 ... receiving seat, 25 ... conductor plate , 14, 28 ... magnetic flux flow, 29 ... first movable part back yoke, 30 ... conductor plate, 31 ... support pillar, 32 ... second movable part back yoke, 33, 34, 35 ... bearing mechanism.

Claims (11)

制振対象物に固定された固定部構造体と、前記固定部構造体の上部及び下部に固定部バックヨークを介して固定された上部及び下部の固定部磁石列と、前記固定部構造体の内部に設置された非磁性体からなる第１可動部構造体と、前記固定部磁石列と対向するように前記第１可動部構造体の上部及び下部に固定された上部及び下部の第１可動部磁石列と、前記第１可動部構造体の内部に設置された非磁性体からなる第２可動部構造体と、前記上部及び下部の第１可動磁石列と対向するように前記第２可動部構造体に固定された第２可動部磁石列と、前記上部及び下部の第１可動部磁石列と前記第２可動部磁石列との間の隙間に配置された導体板と、を有することを特徴とする磁気式多重動吸振器。   A fixed part structure fixed to a vibration control object; upper and lower fixed part magnet rows fixed to the upper and lower parts of the fixed part structure via a fixed part back yoke; and the fixed part structure A first movable part structure made of a non-magnetic material installed inside, and upper and lower first movable parts fixed to the upper and lower parts of the first movable part structure so as to face the fixed part magnet row A second movable part structure made of a non-magnetic material disposed inside the first movable part structure, and the second movable part so as to face the upper and lower first movable magnets. A second movable part magnet row fixed to the partial structure, and a conductor plate disposed in a gap between the upper and lower first movable part magnet rows and the second movable part magnet row. Magnetic multi-motion vibration absorber characterized by 前記固定部磁石列、前記第１可動部磁石列及び前記第２可動部磁石列は、それぞれ複数の磁石が異磁極となるように縦横に配列されているとともに、対向する磁石の形状は同一形状であることを特徴とする請求項１記載の磁気式多重動吸振器。   The fixed portion magnet row, the first movable portion magnet row, and the second movable portion magnet row are arranged vertically and horizontally so that a plurality of magnets have different magnetic poles, and the opposing magnets have the same shape. The magnetic multi-motion vibration absorber according to claim 1, wherein 前記第１可動部磁石列を構成する磁石の断面形状を傾斜状または階段状にしたことを特徴とする請求項１又は２記載の磁気式多重動吸振器。   3. The magnetic multi-motion vibration absorber according to claim 1, wherein a cross-sectional shape of the magnet constituting the first movable part magnet row is inclined or stepped. 4. 前記第１可動部構造体の上部及び下部の一部に可動部バックヨークを設置し、前記第１可動部磁石列を構成する複数の磁石の一部を前記第一可動部バックヨークに固定することを特徴とする請求項１乃至３いずれかに記載の磁気式多重動吸振器。   A movable part back yoke is installed on a part of the upper part and the lower part of the first movable part structure, and a part of a plurality of magnets constituting the first movable part magnet row is fixed to the first movable part back yoke. The magnetic multi-motion vibration absorber according to any one of claims 1 to 3. 前記可動部バックヨークを前記第１可動部構造体の周辺部又は中央部の少なくとも一方に設けたことを特徴とする請求項４記載の磁気式多重動吸振器。   5. The magnetic multiple motion vibration absorber according to claim 4, wherein the movable part back yoke is provided in at least one of a peripheral part and a central part of the first movable part structure. 前記第２可動部磁石列は、前記可動部バックヨークに対向する部分に磁石が配置されていないことを特徴とする請求項４又は５記載の磁気式多重動吸振器。   6. The magnetic multi-acting vibration absorber according to claim 4, wherein no magnet is disposed in a portion of the second movable part magnet row that faces the movable part back yoke. 制振対象物に固定された固定部構造体と、前記固定部構造体の上部及び下部に固定部バックヨークを介して固定された上部及び下部の固定部磁石列と、前記固定部構造体の内部に設置され、上部及び下部に導体板が設けられた第１可動部構造体と、前記固定部磁石列と対向するように前記導体板に固定された上部及び下部の第１可動部磁石列と、前記第１可動部構造体の内部に設置された非磁性体からなる第２可動部構造体と、前記上部及び下部の第１可動磁石列に対向するよう前記第２可動部構造体に固定された第２可動部磁石列と、を有することを特徴とする磁気式多重動吸振器。   A fixed part structure fixed to a vibration control object; upper and lower fixed part magnet rows fixed to the upper and lower parts of the fixed part structure via a fixed part back yoke; and the fixed part structure A first movable part structure that is installed inside and provided with conductor plates on the upper and lower sides, and upper and lower first movable part magnet rows that are fixed to the conductor plate so as to face the fixed portion magnet rows A second movable part structure made of a non-magnetic material installed inside the first movable part structure, and the second movable part structure so as to face the upper and lower first movable magnet rows. A magnetic multi-motion vibration absorber having a fixed second movable part magnet array. 前記固定部構造体と前記第一可動部構造体の間、及び前記第一可動部構造体と前記第２可動部構造体の間にベアリング機構を配置したことを特徴とする請求項１乃至７いずれかに記載の磁気式多重動吸振器。   8. A bearing mechanism is disposed between the fixed part structure and the first movable part structure and between the first movable part structure and the second movable part structure. A magnetic multi-motion vibration absorber according to any one of the above. 制振対象物に固定部バックヨークを介して固定された固定部磁石列と、第２可動部構造体に第２可動部バックヨークを介して固定された第１可動部磁石列と、前記制振対象物と前記第２可動部構造体の間に配置された非磁性体からなる第１可動部構造体と、前記固定部磁石列及び前記第２可動部磁石列に対向するように第１可動部構造体に固定された第１可動部磁石列と、前記第１可動部磁石列と前記第２可動部磁石列との間の隙間に配置された導体板と、を有することを特徴とする磁気式多重動吸振器。   A fixed part magnet array fixed to the object to be controlled via a fixed part back yoke; a first movable part magnet array fixed to the second movable part structure via a second movable part back yoke; A first movable part structure made of a non-magnetic material disposed between an object to be shaken and the second movable part structure, and a first so as to face the fixed part magnet row and the second movable part magnet row. A first movable part magnet row fixed to the movable part structure; and a conductor plate disposed in a gap between the first movable part magnet row and the second movable part magnet row. Magnetic multi-motion vibration absorber. 前記第１可動部構造体の上部の一部に第１可動部バックヨークを設置したことを特徴とする請求項９記載の磁気式多重動吸振器。   The magnetic multiple motion vibration absorber according to claim 9, wherein a first movable part back yoke is installed in a part of an upper part of the first movable part structure. 前記制振対象物と前記第一可動部構造体の間、及び前記第一可動部構造体と前記第２可動部構造体の間にベアリング機構を配置したことを特徴とする請求項９又は１０記載の磁気式多重動吸振器。   The bearing mechanism is disposed between the vibration control object and the first movable part structure, and between the first movable part structure and the second movable part structure. Magnetic multi-motion vibration absorber as described.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537167A (en) * 2011-12-31 2012-07-04 北京交通大学 Magnetic liquid vibration-reduction device
CN104613120A (en) * 2015-01-23 2015-05-13 北京交通大学 Magnetic fluid damping vibration absorber based on inner cone angle
CN104613121A (en) * 2015-01-26 2015-05-13 北京交通大学 Outer taper angle magnetic liquid damping absorber
CN104632982A (en) * 2015-01-23 2015-05-20 北京交通大学 Inner taper-angle magnetic liquid damping shock absorber with elastic cushion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847826B (en) * 2015-04-14 2016-08-17 北京交通大学 Cone angle magnetic fluid damper in a kind of

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5096325U (en) * 1974-12-29 1975-08-12
JPS541764A (en) * 1977-06-03 1979-01-08 Hitachi Ltd Eddy current system vibration controller
JPH01194850A (en) * 1988-01-29 1989-08-04 Nippon Telegr & Teleph Corp <Ntt> Disc storage
JPH02134344U (en) * 1989-04-13 1990-11-07
JPH03272343A (en) * 1990-03-20 1991-12-04 Fujita Corp Dual type mass damper
JPH0552229A (en) * 1991-02-27 1993-03-02 Atsugi Unisia Corp Electromagnetic suspension device
JPH0642576A (en) * 1992-07-22 1994-02-15 Tokai Rubber Ind Ltd Fluid seal type vibration proof device
JPH06241274A (en) * 1993-02-18 1994-08-30 Toshiba Corp Dynamic vibration reducer type damping device and damping device for internal pump
JPH09287633A (en) * 1996-04-22 1997-11-04 Toshiba Corp Dynamic vibration absorber
JPH10196714A (en) * 1997-01-13 1998-07-31 Toshiba Corp Magnetic vibration damping device
JP2001349371A (en) * 2000-06-02 2001-12-21 Sumitomo Heavy Ind Ltd Magnetic circuit structure and gap control device
JP2002295574A (en) * 2001-03-29 2002-10-09 Toshiba Corp Damping device
JP2004239323A (en) * 2003-02-04 2004-08-26 Tokkyokiki Corp Dynamic vibration absorber
JP2005226799A (en) * 2004-02-16 2005-08-25 Toshiba Corp Magnetic type damping device and magnetic type attenuating device
JP2005233364A (en) * 2004-02-23 2005-09-02 Toshiba Corp Magnetic spring type dynamic vibration absorbing device
JP2006077812A (en) * 2004-09-07 2006-03-23 Tokkyokiki Corp Multiple dynamic vibration absorber designing method
JP2008095757A (en) * 2006-10-10 2008-04-24 Toshiba Corp Vibration damping device

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5096325U (en) * 1974-12-29 1975-08-12
JPS541764A (en) * 1977-06-03 1979-01-08 Hitachi Ltd Eddy current system vibration controller
JPH01194850A (en) * 1988-01-29 1989-08-04 Nippon Telegr & Teleph Corp <Ntt> Disc storage
JPH02134344U (en) * 1989-04-13 1990-11-07
JPH03272343A (en) * 1990-03-20 1991-12-04 Fujita Corp Dual type mass damper
JPH0552229A (en) * 1991-02-27 1993-03-02 Atsugi Unisia Corp Electromagnetic suspension device
JPH0642576A (en) * 1992-07-22 1994-02-15 Tokai Rubber Ind Ltd Fluid seal type vibration proof device
JPH06241274A (en) * 1993-02-18 1994-08-30 Toshiba Corp Dynamic vibration reducer type damping device and damping device for internal pump
JPH09287633A (en) * 1996-04-22 1997-11-04 Toshiba Corp Dynamic vibration absorber
JP4040123B2 (en) * 1996-04-22 2008-01-30 株式会社東芝 Dynamic vibration absorber
JPH10196714A (en) * 1997-01-13 1998-07-31 Toshiba Corp Magnetic vibration damping device
JP3718307B2 (en) * 1997-01-13 2005-11-24 株式会社東芝 Magnetic damper
JP2001349371A (en) * 2000-06-02 2001-12-21 Sumitomo Heavy Ind Ltd Magnetic circuit structure and gap control device
JP2002295574A (en) * 2001-03-29 2002-10-09 Toshiba Corp Damping device
JP2004239323A (en) * 2003-02-04 2004-08-26 Tokkyokiki Corp Dynamic vibration absorber
JP2005226799A (en) * 2004-02-16 2005-08-25 Toshiba Corp Magnetic type damping device and magnetic type attenuating device
JP2005233364A (en) * 2004-02-23 2005-09-02 Toshiba Corp Magnetic spring type dynamic vibration absorbing device
JP2006077812A (en) * 2004-09-07 2006-03-23 Tokkyokiki Corp Multiple dynamic vibration absorber designing method
JP2008095757A (en) * 2006-10-10 2008-04-24 Toshiba Corp Vibration damping device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537167A (en) * 2011-12-31 2012-07-04 北京交通大学 Magnetic liquid vibration-reduction device
CN104613120A (en) * 2015-01-23 2015-05-13 北京交通大学 Magnetic fluid damping vibration absorber based on inner cone angle
CN104632982A (en) * 2015-01-23 2015-05-20 北京交通大学 Inner taper-angle magnetic liquid damping shock absorber with elastic cushion
CN104613120B (en) * 2015-01-23 2016-08-24 北京交通大学 Interior cone angle magnetic fluid damper
CN104632982B (en) * 2015-01-23 2016-08-24 北京交通大学 A kind of interior cone angle magnetic fluid damper of band cushion
CN104613121A (en) * 2015-01-26 2015-05-13 北京交通大学 Outer taper angle magnetic liquid damping absorber

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