JP2001074087A - Damping device - Google Patents
Damping deviceInfo
- Publication number
- JP2001074087A JP2001074087A JP24927399A JP24927399A JP2001074087A JP 2001074087 A JP2001074087 A JP 2001074087A JP 24927399 A JP24927399 A JP 24927399A JP 24927399 A JP24927399 A JP 24927399A JP 2001074087 A JP2001074087 A JP 2001074087A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- damping device
- vibration damping
- balls
- sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は制振装置に係り、特
に柱状構造物の定常振動を抑制することの可能な制振装
置に関する。The present invention relates to a vibration damping device, and more particularly to a vibration damping device capable of suppressing steady vibration of a columnar structure.
【０００２】[0002]
【従来の技術】ポンプ等の機械的振動、あるいは流体的
脈動によって生じる配管の定常的な振動は、配管に繰り
返し応力を与えることとなるため種々の方法で抑制され
る。図１は従来の制振対策（その１）の説明図であっ
て、主配管１０から分岐する枝管１１の振動を抑制する
ためにサポート１２が使用される。2. Description of the Related Art Steady vibration of a pipe caused by mechanical vibration of a pump or the like or fluid pulsation is repeatedly applied to the pipe, so that it is suppressed by various methods. FIG. 1 is an explanatory view of a conventional vibration damping measure (No. 1), in which a support 12 is used to suppress vibration of a branch pipe 11 branched from a main pipe 10.
【０００３】図２は従来の制振対策（その２）の説明図
であって、主配管１０はダンパ２０を介して固定台２１
に固定される。図３は従来の制振対策（その３）の説明
図であって、主配管１０には重り３０と板バネ３１で構
成される動吸振器が設置されている。即ち動吸振器は主
配管１０の定常振動数と等しい共振振動数を有する１自
由度振動系であって、動吸振器が振動することによって
主配管１０の振動を抑制する。FIG. 2 is an explanatory view of a conventional vibration damping measure (No. 2), in which a main pipe 10 is fixed via a damper 20 to a fixed base 21.
Fixed to FIG. 3 is an explanatory view of a conventional vibration damping measure (No. 3), in which a main pipe 10 is provided with a dynamic vibration absorber constituted by a weight 30 and a leaf spring 31. That is, the dynamic vibration absorber is a one-degree-of-freedom vibration system having a resonance frequency equal to the steady frequency of the main pipe 10, and suppresses the vibration of the main pipe 10 by vibrating the dynamic vibration absorber.
【０００４】図４は従来の制振対策（その４）の説明図
であって、柱状構造物４０に取付けられた支持治具４１
からバネ４２を介して重り４３が吊り下げられている。
重り４３の内側には溝４４が形成されており、溝４４に
は球４５が挿入されている。そして、柱状構造物４０が
振動すると球４５が溝４４の側壁と衝突して振動エネル
ギを衝突エネルギに変換することにより、柱状構造物４
０の振動が抑制される。FIG. 4 is an explanatory view of a conventional vibration damping measure (No. 4), wherein a support jig 41 attached to a columnar structure 40 is shown.
, A weight 43 is suspended via a spring 42.
A groove 44 is formed inside the weight 43, and a ball 45 is inserted into the groove 44. When the columnar structure 40 vibrates, the sphere 45 collides with the side wall of the groove 44 to convert the vibration energy into collision energy.
Zero vibration is suppressed.
【０００５】さらに、振動エネルギを衝突体の運動エネ
ルギに変換するインパクトダンパについても検討されて
いる(日本機械学会Ｄ＆Ｄ’９７２１世紀のダンピング
技術シンポジウム講演論文集)。[0005] Further, an impact damper for converting vibration energy into kinetic energy of a collision body is also being studied (Papers for Damping Technology Symposium of the D &D'9721 Century of the Japan Society of Mechanical Engineers).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、従来の
制振対策（その１）にあっては、サポートを設置するた
めには主配管１０に取付けバンド１３を設置する必要が
あるが、配管が入り組んでいる場合には取付けバンド１
３の設置が困難であるだけでなく、保守の際には取付け
バンド１３を取り外すことが必要である等取扱い上の困
難もあった。However, in the conventional vibration damping measures (No. 1), it is necessary to install the mounting band 13 on the main pipe 10 in order to install the support. If you are in the mounting band 1
Not only is it difficult to install the mounting band 3, but also there are difficulties in handling such as the necessity of removing the mounting band 13 during maintenance.
【０００７】また、従来の制振対策（その２）にあって
は、ダンパ自体高価格であって経済的に不利であるだけ
でなく、高温雰囲気においてはダンパ特性が劣化するこ
ともあった。従来の制振対策（その３）にあっては、１
つの動吸振器で吸収可能な振動は１方向の振動だけであ
り水平方向および垂直方向の振動を抑制するためには複
数の動吸振器を設置する必要があるだけでなく、主配管
の振動数に応じて動吸振器を設計・調整する必要があっ
た。Further, in the conventional vibration damping measures (No. 2), not only is the damper itself expensive and economically disadvantageous, but also the damper characteristics may deteriorate in a high-temperature atmosphere. In conventional vibration suppression measures (Part 3), 1
The only vibration that can be absorbed by one dynamic vibration absorber is vibration in one direction. In order to suppress horizontal and vertical vibrations, it is necessary not only to install multiple dynamic vibration absorbers, but also to reduce the vibration frequency of the main piping. It was necessary to design and adjust the dynamic vibration absorber according to the requirements.
【０００８】従来の制振対策（その４）にあっては、球
４５の数はさほど多くできないため、十分な制振特性が
得られない。さらに現在検討されているインパクトダン
パは、複数個のインパクタ（衝突体）を垂直に積み重ね
た形式であり、ある程度振動の振幅が大きくないとイン
パクタ同士の衝突は発生せず、制振効果が得られない。In the conventional vibration damping measure (No. 4), since the number of balls 45 cannot be so large, sufficient vibration damping characteristics cannot be obtained. Furthermore, the impact damper currently being studied is a type in which a plurality of impactors (colliding bodies) are vertically stacked. If the amplitude of the vibration is not large to some extent, collision between the impactors does not occur, and the damping effect can be obtained. Absent.
【０００９】本発明は上記課題に鑑みなされたものであ
って、定常振動を効果的に抑制することの可能な制振装
置を提供することを目的とする。The present invention has been made in view of the above problems, and has as its object to provide a vibration damping device capable of effectively suppressing steady-state vibration.
【００１０】[0010]
【課題を解決するための手段】第１の発明に係る制振装
置は、振動体に取り付けられる中空の筐体と、中空の筐
体の内部を複数の区画に区切る区切り手段と、区切り手
段により区切られた複数の区画のそれぞれの中に移動可
能に配置された複数の球と、を具備する。本発明にあっ
ては、筐体中の複数の区画のそれぞれに移動可能に球が
収納されるため、筐体が振動すると、振動エネルギは衝
突エネルギに変換される。According to a first aspect of the present invention, there is provided a vibration damping device comprising: a hollow casing attached to a vibrating body; a dividing means for dividing the inside of the hollow casing into a plurality of sections; A plurality of spheres movably disposed in each of the plurality of partitioned sections. In the present invention, since the sphere is movably stored in each of the plurality of sections in the housing, when the housing vibrates, the vibration energy is converted into collision energy.
【００１１】第２の発明に係る制振装置は、区切り手段
が、隣接する区画内の球同士の衝突を許容するとともに
隣接する区画内への前記球の移動を防止する大きさの開
口が穿孔された仕切り板である。第３の発明に係る制振
装置は、区切り手段が、隣接する区画内の球同士の衝突
を許容するとともに隣接する区画内への球の移動を防止
する隙間を有する突部である。[0011] In the vibration damping device according to a second aspect of the present invention, the separating means allows the balls in adjacent sections to collide with each other and has an opening sized to prevent the movement of the balls into the adjacent sections. It is a divided plate. In the vibration damping device according to a third aspect of the present invention, the separating means is a projection having a gap that allows collision between balls in adjacent sections and prevents movement of the balls into adjacent sections.
【００１２】本発明にあっては、各区画の仕切りに開口
が穿孔されているため、筐体が振動すると、振動エネル
ギは球同士の衝突エネルギに変換される。第４の発明に
係る制振装置は、中空の筐体が、中空の筐体の中心に配
管を貫通させる貫通孔と、中空の筐体の中心を通る対称
軸によって分割される第１および第２の筐体片と、第１
および第２の筐体片を開閉自在に対称軸の一端において
接続する接続手段と、第１および第２の筐体片を閉状態
に固定する固定手段と、で構成される。In the present invention, since an opening is perforated in the partition of each section, when the housing vibrates, the vibration energy is converted into collision energy between the balls. In the vibration damping device according to a fourth aspect of the present invention, the hollow housing is divided into a first and a second by a symmetric axis passing through the center of the hollow housing and a through-hole for passing the pipe through the center of the hollow housing. Two housing pieces and the first
And a connecting means for opening and closing the second housing piece at one end of the symmetrical axis, and a fixing means for fixing the first and second housing pieces in a closed state.
【００１３】本発明にあっては、制振装置は、筐体を開
とした状態で貫通孔内に配管を抱き込み、その後筐体を
閉状態に固定することによって配管に取付けられる。In the present invention, the vibration damping device is attached to the pipe by holding the pipe in the through hole with the casing open and then fixing the casing in a closed state.
【００１４】[0014]
【発明の実施の形態】図５は本発明に係る制振装置を具
備した配管系の斜視図であって、水平に延伸する主配管
５１から垂直上方向に枝管５２が分岐している。枝管５
２には弁５３が、そして弁５３の上方に本発明に係る略
円盤形状の制振装置５４が設置されている。FIG. 5 is a perspective view of a piping system provided with a vibration damping device according to the present invention, in which a branch pipe 52 is branched vertically upward from a main pipe 51 extending horizontally. Branch pipe 5
2 is provided with a valve 53, and above the valve 53, a substantially disk-shaped vibration damping device 54 according to the present invention is installed.
【００１５】図６および７は本発明に係る制振装置の第
１の実施形態の水平断面図および縦断面図（Ａ−Ａ断
面）であって、円盤状の制振装置５４の筐体５４１の中
心に枝管５２が貫通する貫通孔５４０が形成される。制
振装置５４の筐体５４１の内部は仕切り板５４２によっ
てほぼ正方形の複数の区画に仕切られており、各部屋に
中には各区画の中を自在に移動可能な球５４３が配置さ
れる。仕切り板５４２の中央部に球５４３は各区画から
隣接する区画には移動しないが、隣接する区画に配置さ
れた球との衝突は可能である大きさの開口５４４を穿孔
してもよい。FIGS. 6 and 7 are a horizontal sectional view and a vertical sectional view (AA section) of a first embodiment of the vibration damping device according to the present invention, and show a housing 541 of a disk-shaped vibration damping device 54. A through hole 540 through which the branch pipe 52 penetrates is formed at the center of the hole. The inside of the housing 541 of the vibration damping device 54 is partitioned into a plurality of substantially square sections by a partition plate 542, and a ball 543 that can move freely in each section is arranged in each room. At the center of the partition plate 542, the sphere 543 does not move from each section to the adjacent section, but may pierce the opening 544 of a size capable of colliding with the sphere arranged in the adjacent section.
【００１６】図８および９は本発明に係る制振装置の第
２の実施形態の軸直角方向断面図および軸方向縦断面図
（Ｂ−Ｂ断面）であって、第１の実施形態における仕切
り板に代えて筐体５４１の内側上面および下面に凹凸が
形成される。即ち、上面および下面の凹部５４５に球５
４３が配置され、上面および下面の凸部５４６の隙間は
球５４３は各部屋から隣接する区画には移動しないが、
隣接する区画に配置された球との衝突は可能なように調
整される。FIGS. 8 and 9 are a vertical sectional view and a vertical sectional view (BB section) of a vibration damping device according to a second embodiment of the present invention, respectively. Irregularities are formed on the inner upper surface and the lower surface of the housing 541 instead of the plate. That is, the sphere 5
43 are arranged, and the gap between the convex portions 546 on the upper surface and the lower surface is such that the sphere 543 does not move from each room to the adjacent section,
Collisions with spheres located in adjacent compartments are adjusted as possible.
【００１７】従って、枝管５２が振動すると、ある区画
に配置された球５４３は各区画内を移動し、隣接する区
画に配置された球、仕切り板または凸部、および筐体と
衝突を繰り返し、振動エネルギを衝突エネルギに変換し
て枝管５２の振動を抑制する。図１０は本発明に係る制
振装置の効果の説明図であって、（イ）は制振装置を具
備しない場合の弁の振動を、（ロ）は制振装置を具備し
た場合の弁の振動（ａ）および球の動き（ｂ）を示す。Therefore, when the branch pipe 52 vibrates, the sphere 543 arranged in a certain section moves in each section and repeatedly collides with the sphere, the partition plate or the convex portion arranged in the adjacent section, and the housing. In addition, the vibration energy is converted into the collision energy to suppress the vibration of the branch pipe 52. 10A and 10B are explanatory diagrams of the effect of the vibration damping device according to the present invention. FIG. 10A shows the vibration of the valve without the vibration damping device, and FIG. 10B shows the vibration of the valve when the vibration damping device is provided. The vibration (a) and the movement of the sphere (b) are shown.
【００１８】即ち、制振装置を具備しない場合は弁は大
きい振幅で振動する。これに対し、制振装置を具備する
場合は球が区画内で移動し球同士が衝突することにより
振動エネルギが球の衝突エネルギに変換されるため弁自
体の振幅は低減する。さらに、本発明に係る制振装置に
よれば、球は各区画に１個づつ配置されて複数の球が一
塊とならず、振幅が小さい場合にも球同士の衝突が発生
するため、振幅が小さい場合であっても振動を抑制する
ことが可能となる。That is, when no damping device is provided, the valve vibrates with a large amplitude. On the other hand, when the vibration damping device is provided, the vibration energy is converted into the collision energy of the spheres when the spheres move in the section and collide with each other, so that the amplitude of the valve itself is reduced. Further, according to the vibration damping device according to the present invention, the balls are arranged one by one in each section, and a plurality of balls are not united. Even when the amplitude is small, the balls collide with each other. Even if it is small, vibration can be suppressed.
【００１９】図１１は本発明に係る制振装置の第３の実
施形態の斜視図であって、筐体５４１は筐体の中心を通
る対称軸に沿って２分割され、対称軸の一端に設けられ
たヒンジ５４５によって開閉自在に接続される。即ち、
枝管５２に取付ける際には、筐体５４１を開状態として
枝管５２を抱き込み、その後対称軸に関しヒンジ５４７
の反対側に設置されたバックル５４８によって、筐体５
４１を閉状態に固定して取付けを完了する。FIG. 11 is a perspective view of a vibration damping device according to a third embodiment of the present invention. A housing 541 is divided into two parts along an axis of symmetry passing through the center of the housing, and is provided at one end of the axis of symmetry. A hinge 545 is provided so as to open and close freely. That is,
When attaching the branch pipe 52 to the branch pipe 52, the casing 541 is opened and the branch pipe 52 is hugged.
The buckle 548 installed on the opposite side of the
The mounting is completed by fixing 41 in the closed state.
【００２０】従って、本実施形態によれば制振装置５４
の取付けは容易であり、既設の配管に対しても適用する
ことが可能である。以上、配管の振動を抑制する場合に
ついて説明したが、本発明に係る制振装置は橋梁、タワ
ー、クレーン等の柱状構造物の振動の抑制に対しても適
用することが可能である。Therefore, according to the present embodiment, the vibration damping device 54
Is easy to install, and can be applied to existing piping. The case where the vibration of the pipe is suppressed has been described above, but the vibration damping device according to the present invention can also be applied to the suppression of the vibration of a columnar structure such as a bridge, a tower or a crane.
【００２１】[0021]
【発明の効果】第１の発明に係る制振装置によれば、中
空の筐体内の複数の区画のそれぞれに球が配置されて、
振動の振幅が小さい場合にも球が区画内で移動し、振動
エネルギを衝突エネルギに変換して振動を抑制するの
で、保守はほとんど必要無くなる。According to the vibration damping device of the first invention, the sphere is arranged in each of the plurality of sections in the hollow housing,
Even when the amplitude of the vibration is small, the sphere moves in the compartment and converts the vibration energy into the collision energy to suppress the vibration, so that maintenance is almost unnecessary.
【００２２】また、第１の発明に係る制振装置は、構造
物の振動数に応じて調整する必要がないため、既設の構
造物に対しても容易に適用することができる。さらに、
第１の発明に係る制振装置は、すべて金属で製造するこ
とができるので高温の構造物に対しても適用することが
できる。第２および第３の発明に係る制振装置によれ
ば、隣接する区画の球が直接衝突するのでより効率的に
振動を抑制することが可能となる。Further, the vibration damping device according to the first aspect of the present invention does not need to be adjusted according to the frequency of the structure, so that it can be easily applied to an existing structure. further,
Since the vibration damping device according to the first invention can be entirely made of metal, it can be applied to a high-temperature structure. According to the vibration damping devices according to the second and third inventions, the balls in the adjacent sections directly collide with each other, so that the vibration can be more efficiently suppressed.
【００２３】第４の発明に係る制振装置によれば、柱状
構造物に簡単に取り付けることができるので、既設の構
造物の振動を抑制することが可能である。According to the vibration damping device of the fourth aspect, since the vibration damping device can be easily attached to the columnar structure, it is possible to suppress the vibration of the existing structure.
【図１】従来の制振対策（その１）の説明図である。FIG. 1 is an explanatory diagram of a conventional vibration suppression measure (No. 1).
【図２】従来の制振対策（その２）の説明図である。FIG. 2 is an explanatory diagram of a conventional vibration suppression measure (No. 2).
【図３】従来の制振対策（その３）の説明図である。FIG. 3 is an explanatory diagram of a conventional vibration damping measure (3).
【図４】従来の制振対策（その４）の説明図である。FIG. 4 is an explanatory diagram of a conventional vibration suppression measure (No. 4).
【図５】本発明に係る制振装置を具備した配管系の斜視
図である。FIG. 5 is a perspective view of a piping system provided with the vibration damping device according to the present invention.
【図６】本発明に係る制振装置の第１の実施形態の水平
断面図である。FIG. 6 is a horizontal sectional view of the first embodiment of the vibration damping device according to the present invention.
【図７】本発明に係る制振装置の第１の実施形態の縦断
面図である。FIG. 7 is a longitudinal sectional view of the first embodiment of the vibration damping device according to the present invention.
【図８】本発明に係る制振装置の第２の実施形態の水平
断面図である。FIG. 8 is a horizontal sectional view of a second embodiment of the vibration damping device according to the present invention.
【図９】本発明に係る制振装置の第２の実施形態の縦断
面図である。FIG. 9 is a longitudinal sectional view of a second embodiment of the vibration damping device according to the present invention.
【図１０】本発明に係る制振装置の効果の説明図であ
る。FIG. 10 is an explanatory diagram of an effect of the vibration damping device according to the present invention.
【図１１】本発明に係る制振装置の第３の実施形態の斜
視図である。FIG. 11 is a perspective view of a third embodiment of the vibration damping device according to the present invention.
５４…制振装置 ５４０…貫通孔 ５４１…筐体 ５４２…仕切り板 ５４３…球 ５４４…開口 ５４５…凹部 ５４６…凸部 ５４７…ヒンジ ５４８…バックル 54 ... Vibration control device 540 ... Through hole 541 ... Housing 542 ... Partition plate 543 ... Sphere 544 ... Opening 545 ... Recess 546 ... Protrusion 547 ... Hinge 548 ... Buckle
Claims (4)
と、 前記区切り手段により区切られた複数の区画のそれぞれ
の中に移動可能に配置される複数の球と、を具備する制
振装置。1. A hollow housing attached to a vibrating body, a partitioning unit for partitioning the interior of the hollow housing into a plurality of partitions, and movable into each of the plurality of partitions partitioned by the partitioning unit. And a plurality of spheres arranged in the vibration control device.
の前記球同士の衝突を許容するとともに隣接する前記区
画内への前記球の移動を防止する大きさの開口が穿孔さ
れた仕切り板である請求項１に記載の制振装置。2. The partitioning means is a partition plate having a perforated opening sized to allow collision of the balls in adjacent sections and prevent movement of the balls into adjacent sections. The vibration damping device according to claim 1.
の前記球同士の衝突を許容するとともに隣接する前記区
画内への前記球の移動を防止する隙間を有する突部であ
る請求項１に記載の制振装置。3. The method according to claim 1, wherein the separating means is a projection having a gap that allows collision of the spheres in the adjacent sections and prevents movement of the spheres into the adjacent sections. The described vibration damping device.
第１および第２の筐体片と、 前記第１および第２の筐体片を開閉自在に対称軸の一方
端において接続する接続手段と、 前記第１および第２の筐体片を閉状態に固定する固定手
段と、で構成される請求項１から３のいずれか１項に記
載の制振装置。4. The first and second housings, wherein the hollow housing is divided by a through-hole through which a pipe passes through the center of the hollow housing, and a symmetric axis passing through the center of the hollow housing. A body piece, connecting means for connecting the first and second housing pieces at one end of a symmetrical axis so as to be freely opened and closed, and fixing means for fixing the first and second housing pieces in a closed state; The vibration damping device according to any one of claims 1 to 3, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24927399A JP3679951B2 (en) | 1999-09-02 | 1999-09-02 | Vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24927399A JP3679951B2 (en) | 1999-09-02 | 1999-09-02 | Vibration control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001074087A true JP2001074087A (en) | 2001-03-23 |
| JP3679951B2 JP3679951B2 (en) | 2005-08-03 |
Family
ID=17190523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24927399A Expired - Lifetime JP3679951B2 (en) | 1999-09-02 | 1999-09-02 | Vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3679951B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018155333A (en) * | 2017-03-17 | 2018-10-04 | 三菱重工業株式会社 | Vibration control connector device |
| KR20210152302A (en) * | 2020-06-08 | 2021-12-15 | 엘지전자 주식회사 | Vibration absorber |
-
1999
- 1999-09-02 JP JP24927399A patent/JP3679951B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018155333A (en) * | 2017-03-17 | 2018-10-04 | 三菱重工業株式会社 | Vibration control connector device |
| KR20210152302A (en) * | 2020-06-08 | 2021-12-15 | 엘지전자 주식회사 | Vibration absorber |
| KR102421853B1 (en) * | 2020-06-08 | 2022-07-18 | 엘지전자 주식회사 | Vibration absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3679951B2 (en) | 2005-08-03 |
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