JPH0713420B2 - Vibration control device - Google Patents
Vibration control deviceInfo
- Publication number
- JPH0713420B2 JPH0713420B2 JP11438489A JP11438489A JPH0713420B2 JP H0713420 B2 JPH0713420 B2 JP H0713420B2 JP 11438489 A JP11438489 A JP 11438489A JP 11438489 A JP11438489 A JP 11438489A JP H0713420 B2 JPH0713420 B2 JP H0713420B2
- Authority
- JP
- Japan
- Prior art keywords
- suspension
- suspension frame
- vibration
- frame
- vibrator
- 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.)
- Expired - Lifetime
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は搭状構造物，高層ビル等の制振に適用される、
例えばアクチブ・マス・ダンパ，セミ・アクチブ・ダン
パ等の制振装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is applied to vibration control of building structures, high-rise buildings, etc.
For example, it relates to a vibration damping device such as an active mass damper and a semi-active damper.
［従来の技術］ 従来、搭状構造物，高層ビル等の制振に適用されるアク
チブ・マス・ダンパは第３図に示すように構成されてい
た。第３図において、１は構造物４の振動を抑制するた
めの質量（振動体）である。また、６は上記質量を動か
すための加振機であり、ホストコンピュータ８により制
御される。９は上記構造物４に取付けられた構造物４の
振動を検出する振動センサである。この振動センサ９で
検出された構造物４の振動は上記ホストコンピュータ８
に出力される。ところで、上記質量１は車輪11によりレ
ール12上を移動可能におかれており、上記加振機６は構
造物４に固定された反力壁12に一端が固定されている。[Prior Art] Conventionally, an active mass damper applied to vibration control of a building structure, a high-rise building, etc. has been constructed as shown in FIG. In FIG. 3, reference numeral 1 is a mass (vibrating body) for suppressing the vibration of the structure 4. Further, 6 is a vibration exciter for moving the mass, which is controlled by the host computer 8. Reference numeral 9 is a vibration sensor for detecting the vibration of the structure 4 attached to the structure 4. The vibration of the structure 4 detected by the vibration sensor 9 is transmitted to the host computer 8
Is output to. By the way, the mass 1 is movably mounted on the rails 12 by the wheels 11, and the vibrator 6 has one end fixed to the reaction wall 12 fixed to the structure 4.
つまり、従来のアクチブ・マス・ダンパは振動センサ９
により構造物４の振動が検出されると、ホストコンピュ
ータ８により加振機６が制御されて、質量１がレール10
上を移動されて、構造物４の振動を抑制していた。In other words, the conventional active mass damper has the vibration sensor 9
When the vibration of the structure 4 is detected by the host computer 8, the vibration exciter 6 is controlled by the host computer 8 so that the mass 1 is transferred to the rail 10.
It was moved up, and the vibration of the structure 4 was suppressed.
［発明が解決しようとする問題点］ しかし、従来のアクチブ・マス・ダンパは質量１はレー
ル10上を移動するため、制振効果はレール10の敷設方向
の１方向しか生じないという問題点がある。また、制振
効果を水平２方向に生じさせるようにするには互いに直
行するようにレール上に置かれた２体の質量を制御する
必要があった。[Problems to be Solved by the Invention] However, in the conventional active mass damper, since the mass 1 moves on the rail 10, the vibration damping effect occurs only in one direction of the laying direction of the rail 10. is there. Further, in order to generate the vibration damping effect in two horizontal directions, it was necessary to control the masses of the two bodies placed on the rail so as to be orthogonal to each other.
さらに、大きな制振効果を得るためには質量１を大きな
変位で動かす必要があるが、この場合には大きいストロ
ークの加振機が必要となるという問題点がある。Furthermore, in order to obtain a large damping effect, it is necessary to move the mass 1 with a large displacement, but in this case, there is a problem that a vibrating machine with a large stroke is required.
本発明は上記の点に鑑みてなされてもので、その目的は
１つの質量で、あらゆる方向において大きな制振効果を
生じさせることができる制振装置を提供することにあ
る。The present invention has been made in view of the above points, and an object thereof is to provide a vibration damping device capable of producing a large vibration damping effect in all directions with one mass.
［問題点を解決するための手段］ 第ｎ（ｎ＝2,…,N）（ここで、Ｎは吊り枠の総数）の吊
り枠から複数の第ｎの吊り材を懸垂させ、第（ｎ−１）
の吊り枠は複数の第ｎの吊り材を介して第ｎの吊り枠に
懸垂され、第１の吊り枠には複数の第１の吊り材を介し
て構造物の振動を抑制するための振動体を支持させ、第
Ｎの吊り枠を複数の第（Ｎ＋１）の吊り材を介して上記
構造物から懸垂させ、上記振動体と上記第１の吊り枠と
の間，上記第ｍ（ｍ＝1,…,N−１）の吊り枠と第（ｍ＋
１）の吊り枠との間，上記第Ｎの吊り枠と上記構造物と
の間に夫々加振機を具備したことを特徴とする制振装置
である。[Means for Solving Problems] A plurality of n-th suspension members are suspended from an n-th suspension frame (n = 2, ..., N) (where N is the total number of suspension frames) to suspend the (n-th suspension member). -1)
Is suspended from the n-th suspension frame via a plurality of n-th suspension members, and the first suspension frame is oscillated to suppress the vibration of the structure via the plurality of first suspension members. The body is supported, and the N-th suspension frame is suspended from the structure via a plurality of (N + 1) th suspension members, and the m-th (m = m = m) between the vibrating body and the first suspension frame. 1, ..., N-1) suspension frame and the (m +)
The vibration damping device is characterized in that a vibration exciter is provided between the suspension frame of 1) and between the Nth suspension frame and the structure.
［作用］ １つの質量を吊り材を介して吊り枠から振り子状に吊り
下げ、さらに、吊り枠を吊り材を介して吊り枠から振り
子状に吊り下げるようにして、ｎ重に振り子をはり、個
々の吊り枠間に加振機を取付け、各加振機のストローク
は小さくても、質量に大きな変位を与えることができる
ようにしている。[Operation] One mass is hung from a suspension frame via a suspending material in a pendulum shape, and further, the suspension frame is suspended from the suspension frame in a pendulum shape via a suspending material. A vibration exciter is attached between each suspension frame so that a large displacement can be given to the mass even if the stroke of each exciter is small.
［実施例］ 以下、図面を参照して本発明の一実施例に係わる制振装
置について説明する。第１図において、１は振動体（質
量）、２は第１の吊り枠、３は第２の吊り枠、４は構造
物、５は吊り材、６は加振機、７はピン支持部である。
つまり、振動体１は第１の吊り枠２から吊り材５で吊ら
れている。この第１の吊り枠２は第２の吊り枠３から吊
り材５で吊られている。さらに、この第２の吊り枠３は
構造物４から吊り材５で吊られている。[Embodiment] Hereinafter, a vibration damping device according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 1 is a vibrating body (mass), 2 is a first suspension frame, 3 is a second suspension frame, 4 is a structure, 5 is a suspension member, 6 is a vibrator, and 7 is a pin support portion. Is.
That is, the vibrating body 1 is suspended from the first suspension frame 2 by the suspension member 5. The first suspension frame 2 is suspended from the second suspension frame 3 by a suspension member 5. Further, the second suspension frame 3 is suspended from the structure 4 by a suspension member 5.
また、振動体１と第１の吊り枠２間、第１の吊り枠２と
第２の吊り枠３間、第２の吊り枠３と構造物４間には両
端をピン支持部７により支持された加振機６が前後方向
に３個、左右方向に３個取付けられている。上記加振機
６は油圧あるいは電気等で駆動されるもので、その制御
は図示しないコンピュータにより制御されている。ま
た、前後方向にある加振機６と左右方向にある加振機６
には、コンピュータから異なった指令が出されるが、同
じ向きの各加振機には同じ指令が出力される。Further, both ends of the vibrating body 1 and the first hanging frame 2 are supported by pin support portions 7 between the first hanging frame 2 and the second hanging frame 3 and between the second hanging frame 3 and the structure 4. Three shakers 6 are attached in the front-rear direction and three in the left-right direction. The vibrator 6 is driven hydraulically or electrically, and its control is controlled by a computer (not shown). In addition, the shaker 6 in the front-back direction and the shaker 6 in the left-right direction
Although different commands are issued from the computer, the same commands are output to the respective exciters in the same direction.
次に、動作について説明する。例えば、前後方向の各加
振機６に30cmの伸長の指令が出力されると、振動体１は
構造物４に対して前後方向に90cmだけ変位される。この
ため、短いストロークの加振機６で何倍もの変位を振動
体１に与えることができる。また、前後方向と同時に、
左右方向の加振機６にもコンピュータから別の指令が出
力されると、それに応じて振動体１は左右方向に加振機
６に与えられるストロークの何倍もの変位が与えられ
る。また、加振機６は両端をピン支持部７により支持さ
れているため、前後方向の加振機６及び左右方向の加振
機７に同時に指令が出力されても、水平全方向に対して
振動体１を動かされる。Next, the operation will be described. For example, when a 30 cm extension command is output to each vibrator 6 in the front-rear direction, the vibrating body 1 is displaced by 90 cm in the front-rear direction with respect to the structure 4. Therefore, the vibrator 6 having a short stroke can give many times of displacement to the vibrating body 1. Also, at the same time as the front-back direction,
When another command is output from the computer to the vibrator 6 in the left-right direction, the vibrator 1 is displaced in the left-right direction by many times the stroke given to the vibrator 6. Further, since both ends of the shaker 6 are supported by the pin support portions 7, even if commands are simultaneously output to the shaker 6 in the front-rear direction and the shaker 7 in the left-right direction, the shaker 6 does not move in all horizontal directions. The vibrator 1 is moved.
次に、第２図（Ａ）及び（Ｂ）は本発明の他の実施例を
示すものである。この他の実施例では振動体１と第１の
吊り枠２間、第１の吊り枠２と第２の吊り枠３間、第２
の吊り枠３と構造物４間の隙間が第１図に示した一実施
例に比べてはるかに少ない場合に適用されるものであ
る。つまり、加振機６の取付け方が横型である以外はそ
の構成及び動作は第１図に示した一実施例と同じであ
る。Next, FIGS. 2A and 2B show another embodiment of the present invention. In another embodiment, between the vibrating body 1 and the first suspension frame 2, between the first suspension frame 2 and the second suspension frame 3, and between the second suspension frame 3 and the second suspension frame 3.
It is applied when the gap between the suspension frame 3 and the structure 4 is much smaller than that of the embodiment shown in FIG. In other words, the configuration and operation are the same as those of the embodiment shown in FIG. 1 except that the vibration exciter 6 is mounted horizontally.
なお、上記実施例においては、吊り枠を２つ設けたが、
これに限らず吊り枠をｎ個設けて、加振機６のストロー
クの（ｎ＋１）倍もの変位を振動体１に与えるようにし
ても良い。Although two hanging frames are provided in the above embodiment,
Not limited to this, n suspension frames may be provided to give the vibrator 1 a displacement of (n + 1) times the stroke of the vibrator 6.
［発明の効果］ 以上詳述したように本発明によれば、多重吊りした振動
体及び吊り枠間に自動制御で作動される加振機を設ける
ようにしたので、加振機のストロークが短い場合でも、
振動体を大きく振動させることができ、大きな制振効果
を生じさせることができる。また、振動体は振り子状に
吊り下げられているので、１つの振動体で水平方向全方
向に制振効果を生じさせることができる。[Effects of the Invention] As described in detail above, according to the present invention, since the vibrator that is automatically controlled is provided between the vibration body and the suspension frame that are multiply-suspended, the stroke of the shaker is short. Even if
The vibrating body can be greatly vibrated, and a large damping effect can be produced. Further, since the vibrating body is suspended like a pendulum, a single vibrating body can generate a damping effect in all horizontal directions.
第１図は本発明の一実施例に係わる制振装置の構造を示
す斜視図、第２図（Ａ）は本発明の他の実施例に係わる
制振装置の構造を示す平面図、第２図（Ｂ）は同図
（Ａ）の側面図、第３図は従来の制振装置の構造を示す
側面図である。 １……振動体、2,3……吊り枠、４……構造物、５……
吊り材、６……加振機。FIG. 1 is a perspective view showing the structure of a vibration damping device according to an embodiment of the present invention, and FIG. 2 (A) is a plan view showing the structure of a vibration damping device according to another embodiment of the present invention. FIG. 3B is a side view of FIG. 3A, and FIG. 3 is a side view showing a structure of a conventional vibration damping device. 1 ... Vibrating body, 2, 3 ... Hanging frame, 4 ... Structure, 5 ...
Hanging material, 6 ... Vibrator.
Claims (1)
の総数）の吊り枠から複数の第ｎの吊り材を懸垂させ、
第（ｎ−１）の吊り枠は複数の第ｎの吊り材を介して第
ｎの吊り枠に懸垂され、第１の吊り枠には複数の第１の
吊り材を介して構造物の振動を抑制するための振動体を
支持させ、第Ｎの吊り枠を複数の第（Ｎ＋１）の吊り材
を介して上記構造物から懸垂させ、上記振動体と上記第
１の吊り枠との間，上記第ｍ（ｍ＝1,…,N−１）の吊り
枠と第（ｍ＋１）の吊り枠との間，上記第Ｎの吊り枠と
上記構造物との間に夫々加振機を具備したことを特徴と
する制振装置。1. A plurality of n-th suspension members are suspended from an n-th suspension frame (n = 2, ..., N) (where N is the total number of suspension frames).
The (n-1) th suspension frame is suspended from the nth suspension frame via the plurality of nth suspension members, and the first suspension frame is oscillated by the plurality of first suspension members. Between the vibrating body and the first suspension frame by suspending the Nth suspension frame from the structure through a plurality of (N + 1) th suspension members. A vibration exciter was provided between the m-th (m = 1, ..., N-1) suspension frame and the (m + 1) -th suspension frame, and between the N-th suspension frame and the structure. A vibration control device characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438489A JPH0713420B2 (en) | 1989-05-08 | 1989-05-08 | Vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438489A JPH0713420B2 (en) | 1989-05-08 | 1989-05-08 | Vibration control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02296975A JPH02296975A (en) | 1990-12-07 |
| JPH0713420B2 true JPH0713420B2 (en) | 1995-02-15 |
Family
ID=14636323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11438489A Expired - Lifetime JPH0713420B2 (en) | 1989-05-08 | 1989-05-08 | Vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713420B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6045876B2 (en) * | 2012-10-15 | 2016-12-14 | オイレス工業株式会社 | Seismic isolation and vibration isolator |
| JP6456779B2 (en) * | 2015-06-10 | 2019-01-23 | 大成建設株式会社 | Vibration control structure |
| JP7025988B2 (en) * | 2018-05-10 | 2022-02-25 | 戸田建設株式会社 | Building damping system and building |
| JP7068067B2 (en) * | 2018-06-25 | 2022-05-16 | 大成建設株式会社 | Pendulum type vibration damping device |
-
1989
- 1989-05-08 JP JP11438489A patent/JPH0713420B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02296975A (en) | 1990-12-07 |
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