JP2645070B2 - Vibration control device for truss structure - Google Patents
Vibration control device for truss structureInfo
- Publication number
- JP2645070B2 JP2645070B2 JP63092719A JP9271988A JP2645070B2 JP 2645070 B2 JP2645070 B2 JP 2645070B2 JP 63092719 A JP63092719 A JP 63092719A JP 9271988 A JP9271988 A JP 9271988A JP 2645070 B2 JP2645070 B2 JP 2645070B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- truss structure
- truss
- space
- control device
- 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
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） この発明は、例えば、宇宙基地，太陽発電衛星，スペ
ースコロニー，アンテナ，太陽電池パドル等の宇宙用構
造物を含む大形のトラス構造体の振動を制御するのに用
いるトラス構造体の振動制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial Application Field) The present invention relates to a large-sized structure including a space structure such as a space base, a solar power satellite, a space colony, an antenna, and a solar battery paddle. The present invention relates to a truss structure vibration control device used for controlling the vibration of a truss structure.
（従来の技術） 従来、人工衛星等の宇宙航行体は、その運用上におい
て、被搭載アンテナ等の柔軟構造体の振動が外乱となる
ため、その姿勢制御系は柔軟構造体の振動と干渉しない
ような設計が施され、又、宇宙航行体の中心部に設置さ
れていた。(Prior Art) Conventionally, in a spacecraft such as an artificial satellite, since the vibration of a flexible structure such as a mounted antenna causes disturbance in the operation thereof, the attitude control system does not interfere with the vibration of the flexible structure. It was designed in the same way and was installed in the center of the spacecraft.
ところが、近年、宇宙開発の分野においては、その宇
宙航行体の大形化が要請されていることにより、これに
対応して主構造及び被搭載構造物が柔軟トラス構造とな
り、在来の方式では、各種の不具合が発生するおそれが
ある。例えば、固有振動数が0.1Hz以下の大形の被搭載
構造物を宇宙航行体に搭載すると、上記中央集中型の姿
勢制御では、振動の制御が困難となったり、あるいは姿
勢変動に対する姿勢制御により、その被搭載トラス構造
体の振動を増加させるおそれも有する。However, in recent years, in the field of space development, the size of the spacecraft has been demanded, and in response to this, the main structure and the mounted structure have become flexible truss structures. Therefore, various problems may occur. For example, when a large mounted structure with a natural frequency of 0.1 Hz or less is mounted on a spacecraft, vibration control becomes difficult with the centralized attitude control, or attitude control for Also, there is a possibility that the vibration of the mounted truss structure is increased.
そこで、このような被搭載トラス構造体の振動を抑制
する方法としては、軌道・姿勢制御用のスラスタを用い
て振動を制御したり、いわゆる動吸収器を取着してダン
ピング効果を得ることにより振動を制御したりする手段
が考えられている。Therefore, as a method of suppressing such vibration of the mounted truss structure, vibration can be controlled by using a thruster for orbit and attitude control, or by attaching a so-called dynamic absorber to obtain a damping effect Means for controlling the vibration have been considered.
しかしながら、上記スラスタを使用する振動制御手段
では、消耗品である推進剤を必要とするため、長期ミッ
ションを対象とする被搭載トラス構造体に適用すると、
大形の推進剤タンクが必要となり、大形・重量化を招い
たり、あるいは推進剤補給手段を考慮しなければならな
いという問題を有する。However, the vibration control means using the above-mentioned thruster requires a propellant which is a consumable, so when applied to a mounted truss structure intended for a long-term mission,
A large-sized propellant tank is required, which causes a problem that the size and weight are increased, or that a propellant replenishing means must be considered.
また、上記動吸収器を用いてダンピング効果を得る振
動制御手段では、その構成上、大形の被搭載トラス構造
体等の振動を制御するような大きな制振力を得るのに、
非常に大きな動吸収器が必要となり、その制振力に比し
て大形・重量化を招くという問題を有する。Further, in the vibration control means for obtaining a damping effect using the dynamic absorber, in order to obtain a large damping force for controlling the vibration of a large mounted truss structure or the like due to its configuration,
A very large dynamic absorber is required, which causes a problem that the size and weight are increased as compared with the vibration damping force.
（発明が解決しようとする課題） 以上述べたように、従来、考えられていた被搭載トラ
ス構造体の振動制御手段では、いずれのものも大形・重
量化を招くという問題を有する。(Problems to be Solved by the Invention) As described above, any of the conventionally considered vibration control means for the mounted truss structure has a problem in that it increases the size and weight.
この発明は上記の事情に鑑みてなされたもので、構成
簡易にして、小形・軽量化を実現し得、かつ、確実な振
動制御を実現し得るようにしたトラス構造体の振動制御
装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a vibration control device for a truss structure that has a simplified configuration, can be reduced in size and weight, and can realize reliable vibration control. The purpose is to do.
［発明の構成］ （課題を解決するための手段） この発明は複数の立体トラスを直列状に連結してなる
トラス構造体と、このトラス構造体の少なくとも１個の
立体トラスにおける列方向の支柱部材の中間部にそれぞ
れ設けられる前記列方向に伸縮自在な複数の伸縮駆動部
と、前記トラス構造体の振動を検出して、この振動に対
応して前記伸縮駆動部を駆動制御する制御手段とを備え
てトラス構造体の振動制御装置を構成したものである。[Constitution of the Invention] (Means for Solving the Problems) The present invention relates to a truss structure formed by connecting a plurality of space trusses in series, and a column support in at least one space truss of the truss structure. A plurality of telescopic drive units each of which is extendable and contractible in the row direction provided at an intermediate portion of the member, and control means for detecting vibration of the truss structure and driving and controlling the telescopic drive unit in response to the vibration; And a vibration control device for the truss structure.
（作用） 上記構成によれば、トラス構造体に振動が発生する
と、制御手段は、その振動を検出して、その振動に対応
して伸縮駆動機構を駆動制御し、立体トラスの支柱部材
を列方向にリニア式に伸縮駆動させて、その振動を抑制
させる。この結果、確実な振動抑制を可能としたうえ
で、従来のものに比して小形・軽量化が実現する。(Operation) According to the above configuration, when vibration occurs in the truss structure, the control means detects the vibration, drives and controls the telescopic drive mechanism in response to the vibration, and rows the column members of the space truss. The vibration is suppressed by linearly expanding and contracting in the direction. As a result, the vibration can be surely suppressed, and the size and weight are reduced as compared with the conventional one.
（実施例） 以下、この発明の実施例について、図面を参照して詳
細に説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図はこの発明の一実施例に係るトラス構造体の振
動制御装置を示すもので、図中10は立体トラスで、４本
の支柱部材10aが梁部材10bを介して立方体形状のトラス
構造に連結されている。この立体トラス10は、複数個が
直列状に連結されてトラス構造体11が形成され、このト
ラス構造体11は、例えば、アンテナ支持構造物等の構造
物として供される。このトラス構造体11の中間部の所定
の立体トラス10には、その支柱部材10aの中間部に伸縮
駆動機構12がそれぞれ配設される。この伸縮駆動機構12
は、第２図に示すように、その両端部にそれぞれ連結用
の第１及び第２の螺子部13a,13bが上記支柱部材に形成
される螺子穴（図中では、図の都合上、図示せず）に対
応して設けられている。こうち第１の螺子部13aには筺
体14が連結調整部15aを介して連結される。この筺体14
には基部に、例えば、DC差動トランス等の変位検出セン
サ16が配設され、その中間部には伸縮駆動用のアクチュ
エータ17,17の永久磁石17a,17aが取付け部材18,18を介
して所定の間隔に配設される。FIG. 1 shows a vibration control device for a truss structure according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a three-dimensional truss, in which four strut members 10a have a cubic truss structure via beam members 10b. It is connected to. A plurality of the three-dimensional trusses 10 are connected in series to form a truss structure 11, and the truss structure 11 is provided as a structure such as an antenna support structure. In a predetermined three-dimensional truss 10 at an intermediate portion of the truss structure 11, a telescopic drive mechanism 12 is provided at an intermediate portion of the support member 10a. This telescopic drive mechanism 12
As shown in FIG. 2, first and second connecting screw portions 13a and 13b are formed at both ends of the supporting member by screw holes (in FIG. (Not shown). The housing 14 is connected to the first screw portion 13a via a connection adjusting portion 15a. This housing 14
In the base, for example, a displacement detection sensor 16 such as a DC differential transformer is provided, and in the middle thereof, permanent magnets 17a and 17a of actuators 17 and 17 for expansion and contraction drive are provided via mounting members 18 and 18. They are arranged at predetermined intervals.
他方、第２の螺子部13bには駆動軸19が連結調整部15b
を介して連結される。この駆動軸19は、その先端部に被
検出部19aが形成され、この被検出部19aは上記変位検出
センサ16内に移動自在に収容される。また、駆動軸19の
中間部には上記アクチュエータ17,17の駆動コイル17b,1
7bが取付け部材20,20を介して上記永久磁石17a,17bに対
応して配設され、この駆動コイル17b,17bを挟む両端部
がリニアベアリング21,21を介して上記筺体14に対して
列方向（矢印A,B方向）に移動自在に支持される。On the other hand, the drive shaft 19 is connected to the second screw portion 13b by the connection adjusting portion 15b.
Are connected via. The drive shaft 19 has a detected portion 19a formed at a distal end thereof, and the detected portion 19a is movably accommodated in the displacement detection sensor 16. In the middle of the drive shaft 19, the drive coils 17b, 1 of the actuators 17, 17 are provided.
7b are provided corresponding to the permanent magnets 17a, 17b via the mounting members 20, 20, and both ends sandwiching the drive coils 17b, 17b are aligned with the housing 14 via the linear bearings 21, 21. It is movably supported in the directions (the directions of arrows A and B).
上記変位検出センサ16は、第３図に示すように、その
出力端が制御部22の入力端に接続される。この制御部22
は、その出力端がアクチュエータ17に接続されており、
入力した変位信号より列方向の速度を求めて、予め設定
されている一定の比率を乗算し、その振動に対応してア
クチュウエータ17の駆動コイル17bを制御して列方向に
伸縮駆動せしめる。The output terminal of the displacement detection sensor 16 is connected to the input terminal of the control unit 22, as shown in FIG. This control unit 22
Has its output end connected to the actuator 17,
The speed in the column direction is obtained from the input displacement signal, multiplied by a predetermined ratio, and the drive coil 17b of the actuator 17 is controlled in accordance with the vibration to drive the actuator 17 to expand and contract in the column direction.
上記構成において、トラス構造体11が振動されると、
その振動量に対応して立体トラス10の支柱部材10aに配
設された伸縮駆動機構12の駆動軸19の被検出部19aが、
変位検出センサ16内を列方向に移動される。すると、こ
の変位検出センサ16は、駆動軸19の変位量を検出して制
御部22に出力する。この制御部22は上述したように、駆
動軸19の変位量から振動を求め、その振動量に対応して
アクチュエータ17を駆動制御する。これにより、立体ト
ラス10は、その支柱部材10aが、付与される振動量に対
応して列方向にリニア式に伸縮駆動され、ここにトラス
構造体11の振動が抑制される。In the above configuration, when the truss structure 11 is vibrated,
The detected portion 19a of the drive shaft 19 of the telescopic drive mechanism 12 disposed on the support member 10a of the space truss 10 corresponding to the vibration amount,
The inside of the displacement detection sensor 16 is moved in the column direction. Then, the displacement detection sensor 16 detects the amount of displacement of the drive shaft 19 and outputs it to the control unit 22. As described above, the control unit 22 obtains vibration from the displacement amount of the drive shaft 19, and controls the drive of the actuator 17 in accordance with the vibration amount. Thereby, the column member 10a of the space truss 10 is linearly driven to expand and contract in the row direction in accordance with the amount of vibration to be applied, and the vibration of the truss structure 11 is suppressed.
このように、上記トラス構造体の振動制御装置は、ト
ラス構造体11の立体トラス10の支柱部材10aに伸縮駆動
機構12を設け、この伸縮駆動機構12をトラス構造体11の
振動に対応して駆動制御して、立体トラス10の支柱部材
10aを列方向にリニア式に伸縮駆動することにより、振
動を抑制するように構成した。これによれば、トラス構
造体11の振動制御を従来のように推進剤等の消耗品を用
いることなく実現できることにより、可及的に小形・軽
量化が可能となる。また、これによれば、振動をリニア
式に抑制する構成により、従来のような動吸収器を用い
たものに比して比較的小形・軽量なもので、大形のトラ
ス構造体の振動制御が実現できる。As described above, the vibration control device for the truss structure has the telescopic drive mechanism 12 provided on the column member 10a of the three-dimensional truss 10 of the truss structure 11, and the telescopic drive mechanism 12 is adapted to respond to the vibration of the truss structure 11. Drive control and support members of space truss 10
The vibration was suppressed by linearly expanding and contracting the 10a in the column direction. According to this, since the vibration control of the truss structure 11 can be realized without using consumables such as propellants as in the conventional case, the size and weight can be reduced as much as possible. In addition, according to this structure, the vibration is linearly suppressed, and the vibration control of the large truss structure is relatively small and lightweight compared to the conventional one using the dynamic absorber. Can be realized.
なお、上記実施例では、立方体形状の立体トラス10を
用いて構成した場合で説明したが、この形状に限ること
なく、各種の多角形状の立体トラスにおいても適用可能
なもので、宇宙用展開トラス構造体を含む各種のトラス
構造の構造物において、同様の効果が期待される。In the above-described embodiment, the case where the cubic space truss 10 is used has been described. However, the present invention is not limited to this shape and can be applied to various polygonal space trusses. Similar effects can be expected in various truss structures including the structure.
また、上記実施例では、変位検出センサ16を用いて変
位量を検出して、トラス構造体の振動を求めるように構
成したが、これに限ることなく、速度計あるいは加速度
計等を用いて直接的に列方向の速度を検出して、振動を
求めるように構成することも可能である。Further, in the above-described embodiment, the displacement amount is detected by using the displacement detection sensor 16 and the vibration of the truss structure is obtained. However, the present invention is not limited to this. It is also possible to detect the speed in the column direction and obtain the vibration.
さらに、上記実施例では、略直列状に配列した１個の
トラス構造体11を構成した場合で説明したが、これに限
ることなく、立体トラス10を略直列状に配列したトラス
構造体11を並列に配列した構造のものにおいても適用可
能で、同様効果が期待される。Further, in the above embodiment, the case where one truss structure 11 arranged substantially in series was described, but the present invention is not limited to this, and the truss structure 11 in which the space truss 10 is arranged substantially in series may be used. The present invention can also be applied to those having a structure arranged in parallel, and similar effects can be expected.
また、さらに、上記実施例では、伸縮駆動機構12をト
ラス構造体11のうち１個の立体トラス10に配設した場合
で説明したが、この数に限ることなく、適用可能であ
る。よって、この発明は、上記実施例に限ることなく、
この発明の要旨を逸脱しない範囲で種々の変形を実施し
得ることは勿論のことである。Further, in the above-described embodiment, the case where the telescopic drive mechanism 12 is disposed on one of the three-dimensional trusses 10 of the truss structure 11 has been described. However, the present invention is not limited to this number and can be applied. Therefore, the present invention is not limited to the above embodiment,
It goes without saying that various modifications can be made without departing from the spirit of the present invention.
［発明の効果］ 以上詳述したように、この発明によれば、構成簡易に
して、小形・軽量化を実現し得、かつ、確実な振動制御
を実現し得るようにしたトラス構造体の振動制御装置を
提供することができる。[Effects of the Invention] As described in detail above, according to the present invention, the vibration of the truss structure can be simplified, the size and weight can be reduced, and the reliable vibration control can be realized. A control device can be provided.
第１図はこの発明の一実施例に係るトラス構造体の振動
制御装置の配置状態を示す配置図、第２図は第１図の伸
縮駆動機構を取出して示す図、第３図は第２図の回路構
成を示す回路図である。 10……立体トラス、10a……支柱部材、10b……梁部材、
11……トラス構造体、12……伸縮駆動機構、13a,13b…
…螺子部、14……筺体、15a,15b……連結調整部、16…
…変位検出センサ、17……アクチュエータ、17a……永
久磁石、17b……駆動コイル、18,20……取付け部材、19
……駆動軸、21……リニアベアリング、22……制御部。FIG. 1 is a layout diagram showing an arrangement state of a vibration control device for a truss structure according to one embodiment of the present invention, FIG. 2 is a diagram showing a telescopic drive mechanism of FIG. 1 taken out, and FIG. FIG. 2 is a circuit diagram showing a circuit configuration of FIG. 10 …… space truss, 10a …… post member, 10b …… beam member,
11 ... truss structure, 12 ... telescopic drive mechanism, 13a, 13b ...
... Screw part, 14 ... Housing, 15a, 15b ... Connection adjustment part, 16 ...
… Displacement detection sensor, 17 …… Actuator, 17a …… Permanent magnet, 17b …… Drive coil, 18,20 …… Mounting member, 19
… Drive shaft, 21… Linear bearing, 22 …… Control unit.
Claims (1)
トラス構造体と、このトラス構造体の少なくとも１個の
立体トラスにおける列方向の支柱部材の中間部にそれぞ
れ設けられる前記列方向に伸縮自在な複数の伸縮駆動部
と、前記トラス構造体の振動を検出して、この振動に対
応して前記伸縮駆動部を駆動制御する制御手段とを具備
したことを特徴とするトラス構造体の振動制御装置。A truss structure formed by connecting a plurality of space trusses in series, and at least one space truss of the truss structure includes at least one space truss provided at an intermediate portion between column members in the line direction. A truss structure, comprising: a plurality of telescopic drive units that are telescopic; and a control unit that detects vibration of the truss structure and drives and controls the telescopic drive unit in response to the vibration. Vibration control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63092719A JP2645070B2 (en) | 1988-04-15 | 1988-04-15 | Vibration control device for truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63092719A JP2645070B2 (en) | 1988-04-15 | 1988-04-15 | Vibration control device for truss structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01263332A JPH01263332A (en) | 1989-10-19 |
| JP2645070B2 true JP2645070B2 (en) | 1997-08-25 |
Family
ID=14062260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63092719A Expired - Lifetime JP2645070B2 (en) | 1988-04-15 | 1988-04-15 | Vibration control device for truss structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2645070B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5491938A (en) * | 1990-10-19 | 1996-02-20 | Kajima Corporation | High damping structure |
| JP2937585B2 (en) * | 1991-11-12 | 1999-08-23 | 日本電気株式会社 | Piezo actuator for vibration control of space structures |
| CN112554631B (en) * | 2020-11-09 | 2021-08-06 | 赵涛 | Intelligent tower vibration suppression equipment for wind generating set |
-
1988
- 1988-04-15 JP JP63092719A patent/JP2645070B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01263332A (en) | 1989-10-19 |
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