JP2002372095A - Vibration control method and device - Google Patents
Vibration control method and deviceInfo
- Publication number
- JP2002372095A JP2002372095A JP2001177898A JP2001177898A JP2002372095A JP 2002372095 A JP2002372095 A JP 2002372095A JP 2001177898 A JP2001177898 A JP 2001177898A JP 2001177898 A JP2001177898 A JP 2001177898A JP 2002372095 A JP2002372095 A JP 2002372095A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- oil
- electric field
- oil chamber
- power supply
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ＥＲ効果および
ＭＲ効果として知られているところの流体の粘度変化特
性を活用して、振動周波数や振幅が様々に異なる種々多
様な振動に対し、その振動を吸収し減衰させあるいは遮
断する振動制御方法と、ＥＲ効果を示す電気粘性流体
（電気レオロジー流体＝Electrorheological Fluid）
（以下「ＥＲＦ」と略す）やＭＲ効果示す磁気粘性流体
（磁気レオロジー流体＝Magnetorheological Fluid）
（以下「ＭＲＦ」と略す）を用いて種々の振動源から生
ずる様々な特性の振動や音を吸収、低減あるいは遮断す
る振動制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling vibrations of various types having different vibration frequencies and amplitudes by utilizing the viscosity change characteristics of a fluid known as the ER effect and the MR effect. Vibration control method that absorbs, attenuates, or cuts off, and electrorheological fluid (Electrorheological Fluid) that exhibits the ER effect
(Hereinafter abbreviated as "ERF") or a magneto-rheological fluid exhibiting the MR effect (Magnetorheological Fluid)
The present invention relates to a vibration control device that absorbs, reduces, or cuts off vibrations and sounds of various characteristics generated from various vibration sources by using (hereinafter, abbreviated as “MRF”).
【０００２】[0002]
【従来の技術】物体・人体あるいは各種の作業結果に弊
害や不快感を及ぼす無用の振動や音を低減・遮断するこ
とは、種々の産業分野ならびに日常の生活環境下で、古
くから求め続けられてきた重要な技術的課題であって、
それに応えるための各種の制振体（制振材料）が開発さ
れてきている。すなわち、無用な振動や音の吸収、低
減、防振・防音、免振、遮音などを目的とした制振体と
して、金属・合金系弾性体（金属・合金製の皿ばね、コ
イルばね、積層板ばね等）、ゴム系弾性体（防振ゴム、
空気ばね等）、あるいは樹脂系弾性体（樹脂製の皿ば
ね、コイルばね、積層板ばね等）が従来広く用いられて
いる。また一般にこれらの制振体は、振動エネルギーを
吸収して熱エネルギーに変換するメカニズムによって、
固有振動系の共振増幅を抑制したり、振動伝播の距離減
衰を大きくしたり、拡散振動板などのエネルギー蓄積を
防止するものであり、その制振性能を表す指標として損
失係数（損失係数＝吸収されるエネルギー／１サイクル
の振動エネルギー）が用いられている。そして振動系の
固有周波数を加振周波数（振動源の振動周波数）に対し
十分低く選ぶという観点から、サンドイッチ型の制振鋼
板、防振ゴム、積層ゴム、アスファルト系材料、高分子
系材料（マイクロセルポリマー）等の制振体も開発され
ている。2. Description of the Related Art It has long been required in various industrial fields and daily living environments to reduce or cut off unnecessary vibrations and sounds that cause harm or discomfort to objects, human bodies or various work results. Important technical issues that have been
Various damping bodies (damping materials) have been developed to meet the demand. In other words, metal / alloy-based elastic bodies (metal / alloy disc springs, coil springs, laminates, etc.) are used as vibration dampers for the purpose of absorbing and reducing unnecessary vibrations and sounds, damping Leaf spring, etc.), rubber-based elastic body (anti-vibration rubber,
An air spring or the like or a resin-based elastic body (a resin disc spring, a coil spring, a laminated leaf spring, or the like) has been widely used. In general, these dampers use a mechanism that absorbs vibration energy and converts it into heat energy.
It suppresses the resonance amplification of the natural vibration system, increases the distance attenuation of the vibration propagation, and prevents the accumulation of energy in the diffused diaphragm and the like. The loss coefficient (loss coefficient = absorption Energy / vibration energy of one cycle). From the viewpoint of selecting the natural frequency of the vibration system sufficiently lower than the excitation frequency (vibration frequency of the vibration source), sandwich-type damped steel plates, vibration-proof rubber, laminated rubber, asphalt-based materials, polymer-based materials (micro Cell dampers) have also been developed.
【０００３】なおこの出願において、「制振」とは振動
や音の吸収、減衰、低減、防振、防音、免震、遮音等、
振動や音を抑制あるいは遮断する機能の総称を意味し、
「振動」の意味は、「振動」と「音」を対記したところ
は別として、音を含む振動の総称である。[0003] In this application, "vibration suppression" refers to the absorption, attenuation, and reduction of vibration and sound, vibration proof, sound proof, seismic isolation, sound insulation, and the like.
A generic term for functions that suppress or block vibration and sound.
The meaning of "vibration" is a general term for vibration including sound, excluding "vibration" and "sound".
【０００４】現在実用化されているこれらの制振材料の
損失係数は１０−１〜１０−４のオーダーの範囲であ
り、各制振材料はそれぞれ固有の制振支持系固有周波数
を有している。そして従来のこれらの制振材料を用いて
制振効果を得るためには、振動発生源の振動周波数や振
幅を綿密に調査した上で、その振動特性に適合した制振
材料を選択し制振設計して用いる必要がある。したがっ
てある種の振動に適合する制振材料を選択し制振系を設
計し実装した後、その振動の特性（振動周波数や振幅な
ど）が変化した場合には、その都度制振材料の選定やそ
の制振材料を用いた制振系の設計を一からやり直さなけ
ればならなかった。すなわち従来の制振技術は、制振材
料の持つ固有の物理的特性、特に制振材料に固有の損失
係数や粘弾性特性を所与のものとして受動的に利用する
もので、制振材料に固有の制振支持系固有周波数に制約
されるものであることから、幅広い振動モードや周波数
が広範囲にわたって変わる振動源に対して同種の制振材
料をもって対応して高い制振効果を得ることは困難であ
る。また従来の制振材料では、１００Ｈｚから１５ｋＨ
ｚ程度の比較的高い周波数域の振動に対しては相当の制
振効果を得ることができるが、数１００Ｈｚ以下数Ｈｚ
の低周波数、超低周波数の振動、例えば車両振動、高速
道路の音響振動、精密工学系の低周波数域の微弱振動な
どに対しては期待する制振効果を得ることは困難であっ
た。[0004] The loss factor of these vibration damping materials currently in practical use is in the range of 10 -1 to 10 -4 , and each vibration damping material has a unique vibration suppression support system natural frequency. I have. In order to obtain a vibration-damping effect using these conventional vibration-damping materials, the vibration frequency and amplitude of the vibration source must be carefully investigated, and a vibration-damping material suitable for the vibration characteristics must be selected. It must be designed and used. Therefore, after selecting a damping material suitable for a certain type of vibration and designing and implementing a damping system, if the characteristics (vibration frequency, amplitude, etc.) of that vibration change, the selection of the damping material and the The design of the damping system using the damping material had to be redone from scratch. That is, the conventional vibration damping technology passively uses a specific physical characteristic of the vibration damping material, particularly, a loss coefficient and a viscoelastic characteristic peculiar to the vibration damping material. It is difficult to obtain a high damping effect by using the same type of damping material for a wide range of vibration modes and vibration sources whose frequency changes over a wide range because of the inherent vibration suppression system It is. In the case of conventional vibration damping materials, 100 Hz to 15 kHz
For vibrations in a relatively high frequency range of about z, a considerable vibration damping effect can be obtained.
It has been difficult to obtain the expected vibration damping effect with respect to low-frequency and ultra-low-frequency vibrations such as vehicle vibrations, acoustic vibrations on highways, and weak vibrations in the low-frequency range of precision engineering systems.
【０００５】上記のように制振材料に固有の制振支持系
固有周波数に制約される振動制御を、この出願では「パ
ッシブ振動制御」称し、制振材料がもつの特性を外部か
ら変化させることにより、制振材料に固有の制振支持系
固有周波数に制約されることなく、振動周波数や振幅が
異なる種々の特性の振動に対応して制振効果を得る振動
制御を、この出願では「アクティブ振動制御」と称して
いる。アクティブ振動制御に関しては、ピエゾ素子を用
いた制振要素を薄板構造などに張り付けて制御するもの
が既に知られているが、振動レベルや騒音レベルのレベ
ル差が大きい場合や、大きな構造物のように大きな静加
重・動加重が加わるような環境下での使用には耐えられ
ないという問題点や、振動源の振動レベルや振動数が頻
繁に変化するような環境下では対応できないという問題
点があった。The vibration control restricted by the natural frequency of the vibration damping support system inherent to the vibration damping material as described above is referred to as "passive vibration control" in this application, and the characteristic of the vibration damping material is externally changed. By virtue of this application, this application proposes "active Vibration control. " As for active vibration control, there is already known a method in which a damping element using a piezo element is attached to a thin plate structure to control it.However, when the level difference between the vibration level and the noise level is large, or when a large structure is used, Cannot be used in an environment where a large static or dynamic load is applied, or cannot be used in an environment where the vibration level or frequency of the vibration source frequently changes. there were.
【０００６】一方、ＥＲ効果およびMＲ効果といわれる
現象が古くから知られている。ＥＲ効果とは、ある種の
流体に電界を印加するとその液体の粘度が著しく増大し
その電界を取り除くと元の粘度に戻るという液体粘度の
可逆的変化現象で、ＥＲ効果を示す流体は電気粘性流体
またはＥＲＦ（Electrorheological Fluid＝電気レオロ
ジー流体）と呼ばれている。また同様に、流体に磁界を
印加したり取り除くことによりその液体粘度が可逆的に
大きく変化する現象がMＲ効果で、ＭＲ効果を示す流体
は磁気粘性流体またはＭＲＦ（Magnetorheological Flu
id＝磁気レオロジー流体）と呼ばれている。なおこの出
願では、ＥＲ効果ならびにMＲ効果を総じてＥＲ・ＭＲ
効果（現象）と称し、電気粘性流体ならびに磁気粘性流
体を総じて電磁粘性流体またはＥＲ・ＭＲ流体と称す
る。On the other hand, phenomena called the ER effect and the MR effect have been known for a long time. The ER effect is a reversible change in the viscosity of a liquid, in which when an electric field is applied to a certain fluid, the viscosity of the liquid increases significantly, and when the electric field is removed, the viscosity returns to the original viscosity. It is called a fluid or ERF (Electrorheological Fluid). Similarly, the MR effect is a phenomenon in which the viscosity of a liquid reversibly changes greatly when a magnetic field is applied to or removed from the fluid. The fluid exhibiting the MR effect is a magnetic viscous fluid or an MRF (Magnetorheological Fluid).
id = magnetorheological fluid). In this application, the ER effect and the MR effect are generally referred to as ER-MR
The effect (phenomenon) is referred to as an electrorheological fluid and a magnetorheological fluid are collectively referred to as an electrorheological fluid or an ER / MR fluid.
【０００７】ＥＲ・ＭＲ流体については、既に種々の研
究開発成果が発表されており、例えば特開平１１−１７
２２６９号公報、特開平１１−３４３４９６号公報に、
実用に供するためのＥＲ・ＭＲ流体が示されている。ま
た、電気粘性流体（ＥＲＦ）をゲル化することによって
ＥＲＦの分散安定性が高まることを明らかにした研究成
果があり、この電気粘性流体をゲル化した電気粘性ゲル
（以下「ＥＲゲル」と略す）は実用上有用な制振材料と
なり得る。Various research and development results have already been published for ER / MR fluids.
No. 2269, JP-A-11-343496,
An ER / MR fluid for practical use is shown. In addition, there has been research results that show that the gelation of the electrorheological fluid (ERF) enhances the dispersion stability of the ERF, and an electrorheological gel obtained by gelling this electrorheological fluid (hereinafter abbreviated as “ER gel”) ) Can be a practically useful damping material.
【０００８】さらにまた、ＥＲ・ＭＲ流体を介して電磁
気信号で機械的出力を直接制御できることから、動力伝
達、衝撃吸収、液体流量制御、各種ロボット・アクチュ
エータの制御、建造物の制振・防振など、多岐の技術分
野におけるＥＲ・ＭＲ流体の応用が期待されているが、
ＥＲ・ＭＲ流体の特性を生かし実用化面でも検討された
振動制御方法ならびに振動制御装置は見当たらない。Further, since the mechanical output can be directly controlled by electromagnetic signals via the ER / MR fluid, power transmission, shock absorption, liquid flow control, control of various robots / actuators, vibration control / vibration control of buildings ER and MR fluids are expected to be applied in various technical fields such as
There are no vibration control methods and vibration control devices that have been studied in practical use by making use of the characteristics of the ER / MR fluid.
【０００９】[0009]
【発明が解決しようとする課題】この発明は上記従来の
制振技術の難点に鑑み、ＥＲ・ＭＲ流体の特性を生かし
て、周波数（振動数）や振幅などの特性が異なる種々の
振動に自動的に即応して振動を制することができるよう
な、そして汎用性が高く実用化に有利なアクティブ振動
制御方法と、その振動制御方法に基づくアクティブ振動
制御装置を得ようとするものである。SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional vibration damping technology, the present invention takes advantage of the characteristics of the ER / MR fluid to automatically apply various vibrations having different characteristics such as frequency (frequency) and amplitude. It is an object of the present invention to obtain an active vibration control method capable of controlling vibration in a timely manner, and having high versatility and advantageous for practical use, and an active vibration control device based on the vibration control method.
【００１０】すなわちこの発明は、ＥＲ・ＭＲ流体の特
性を利用して、超低周波域から高周波域までの広帯域に
わたる周波数の振動に対し、殊に超低周波域の振動に対
し、また多様な振幅の振動に対し、それら各種の振動に
即応して振動を吸収し減衰させあるいは遮断する振動制
御方法と振動制御装置の実用化を図ろうとするものであ
る。That is, the present invention makes use of the characteristics of the ER / MR fluid for vibrations in a wide frequency range from a very low frequency range to a high frequency range, particularly for vibrations in a very low frequency range, and for various vibrations. A vibration control method and a vibration control device that absorb and attenuate or cut off vibrations in response to vibrations of an amplitude in response to the various vibrations are intended to be put into practical use.
【００１１】またこの発明は、振動制御装置の基本構成
要素を少なくし既存の一般製造プロセスによって振動制
御装置を製作でき既存の振動発生源に簡単に付加できる
ものとして、振動制御装置の実用化のコスト負担やリス
クを少なくしようとするものである。Further, the present invention reduces the number of basic components of the vibration control device, makes it possible to manufacture the vibration control device by an existing general manufacturing process, and can easily add the vibration control device to an existing vibration source. They try to reduce costs and risks.
【００１２】[0012]
【課題を解決するための手段】上記の課題に対してこの
発明は、弾性体によって初期位置が定められて振動自在
に支持されたピストンを備えた複動型油圧シリンダーの
ヘッド側オイル室とボトム側オイル室をオイル側路で連
通させ、そのヘッド側オイル室とボトム側オイル室とオ
イル側路に、電気粘性流体または／および磁気粘性流体
を充填し、そのピストンが受振する振動源の振動の振動
特性を検知してその振動特性に対応した振動検知電気信
号を発生させ、その振動検知電気信号を基に演算して前
記振動特性に対応した電源制御信号を算出し、この電源
制御信号に基づいて制御された電源出力によって、オイ
ル側路中の電気粘性流体または／および磁気粘性流体に
電界または／および磁界を印加することにより、電気粘
性流体または／および磁気粘性流体の粘度を前記振動特
性に応じて変化させ、この電気粘性流体または／および
磁気粘性流体の粘度変化によって振動特性に即応して前
記弾性体の見掛けのばね定数を変化させるようにして振
動源の振動を制振する。SUMMARY OF THE INVENTION To solve the above-mentioned problems, the present invention provides a head-side oil chamber and a bottom of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely. The head side oil chamber, the bottom side oil chamber, and the oil side path are filled with an electrorheological fluid and / or a magnetic viscous fluid, and the piston receives vibration of a vibration source. A vibration characteristic is detected, a vibration detection electric signal corresponding to the vibration characteristic is generated, a power control signal corresponding to the vibration characteristic is calculated by calculating based on the vibration detection electric signal, and based on the power control signal, By applying an electric or / and magnetic field to the electrorheological fluid and / or the magnetorheological fluid in the oil bypass by the power output controlled in And the viscosity of the magnetic viscous fluid is changed according to the vibration characteristics, and the apparent spring constant of the elastic body is changed in response to the vibration characteristics by the change in viscosity of the electrorheological fluid and / or the magnetic viscous fluid. Damping the vibration of the vibration source.
【００１３】また上記の目的を達する他の手段として、
振動源の振動を受振する制振筐体に電気粘性ゲル（ＥＲ
ゲル）を封入し、振動源の振動特性を検知してその振動
特性に対応した振動検知電気信号を発生させ、その振動
検知電気信号を基に演算して振動特性に対応した電源制
御信号を算出し、この電源制御信号に基づいて制御され
た電源出力によって制振筐体内のＥＲゲルに電界を印加
することにより、ＥＲゲルの粘度を振動特性に応じて変
化させ、このＥＲゲルの粘度変化によって振動源の振動
特性に即応して振動源の振動を制振する。As another means for achieving the above object,
An electro-rheological gel (ER
Gel), detects the vibration characteristics of the vibration source, generates a vibration detection electric signal corresponding to the vibration characteristics, and calculates the power control signal corresponding to the vibration characteristics by calculating based on the vibration detection electric signal. Then, by applying an electric field to the ER gel in the vibration damping housing by a power supply output controlled based on the power supply control signal, the viscosity of the ER gel is changed according to the vibration characteristics. Vibration of the vibration source is damped in response to the vibration characteristics of the vibration source.
【００１４】またこの発明は、弾性体によって初期位置
が定められて振動自在に支持されたピストンを備えた複
動型油圧シリンダーのヘッド側オイル室とボトム側オイ
ル室をオイル側路で連通させ、そのヘッド側オイル室と
ボトム側オイル室とオイル側路に、電気粘性流体または
／および磁気粘性流体を充填し、オイル側路中の電気粘
性流体に電界を印加する電界付与用電極、または／およ
び、オイル側路中の磁気粘性流体に磁界を印加する磁界
付与用電磁石を、オイル側路に配設すると共に、ピスト
ンが受振する振動源の振動特性を検知してその振動特性
に対応した振動検知電気信号を発生させる振動センサー
と、この振動検知電気信号を基に演算して振動特性に対
応した電源制御信号を算出するコンピュータと、この電
源制御信号に基づいて振動特性に応じた電圧・電流を電
界付与用電極または／および磁界付与用電磁石に供給す
る電源装置を設けて振動制御装置を構成し、この振動制
御装置を用いることにより上記の課題を解決する。Further, the present invention provides a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported in a freely oscillating manner, wherein a head-side oil chamber and a bottom-side oil chamber communicate with each other through an oil-side path. An electric field applying electrode that fills the head-side oil chamber, the bottom-side oil chamber, and the oil-side passage with an electrorheological fluid or / and a magnetorheological fluid and applies an electric field to the electrorheological fluid in the oil-side passage, and / or A magnetic field applying electromagnet for applying a magnetic field to the magnetic viscous fluid in the oil side passage is disposed in the oil side passage, and the vibration characteristics of the vibration source received by the piston are detected and the vibration detection corresponding to the vibration characteristics is performed. A vibration sensor that generates an electric signal, a computer that calculates based on the vibration detection electric signal to calculate a power control signal corresponding to vibration characteristics, and a computer that calculates a power control signal based on the power control signal. By providing a power supply device for supplying a voltage and a current corresponding to the vibration characteristics to the electric field applying electrode and / or the magnetic field applying electromagnet, a vibration control device is configured, and the above problem is solved by using the vibration control device. .
【００１５】また上記の目的を達するための装置とし
て、電気粘性ゲルが封入されこの電気粘性ゲルに電界を
印加する電界付与電極が配設され振動源の振動を受信す
る制振筐体と、振動源の振動特性を検知してその振動特
性に対応した振動検知電気信号を発生させる振動センサ
ーと、その振動検知電気信号を基に演算して振動特性に
対応した電源制御信号を算出するコンピュータと、この
電源制御信号に基づいて振動特性に応じた電圧を電界付
与用電極に供給する電源装置を設けて振動制御装置を構
成する。[0015] Further, as a device for achieving the above object, an electro-rheological gel is sealed, an electric field imparting electrode for applying an electric field to the electro-rheological gel is provided, and a vibration damping housing for receiving vibration of a vibration source; A vibration sensor that detects a vibration characteristic of the source and generates a vibration detection electric signal corresponding to the vibration characteristic, a computer that calculates based on the vibration detection electric signal to calculate a power control signal corresponding to the vibration characteristic, A vibration control device is provided by providing a power supply device for supplying a voltage corresponding to the vibration characteristic to the electric field application electrode based on the power control signal.
【００１６】さらに振動源が大きい場合には、上記のよ
うな複動型油圧シリンダーと振動センサーを含む振動制
御モジュールや、上記のような制振筐体と振動センサー
を含む振動制御モジュールを、振動源に多数並設して、
大型振動源に対し簡便に対応できるようにすると共に制
振効果を高める。When the vibration source is large, the vibration control module including the double-acting hydraulic cylinder and the vibration sensor as described above, or the vibration control module including the vibration-suppressing housing and the vibration sensor as described above is used. Many are arranged side by side at the source,
It can easily respond to large vibration sources and enhance the vibration suppression effect.
【００１７】[0017]
【発明の実施の形態】この発明に係る振動制御方法の基
本的な実施形態の一つは、弾性体によって初期位置が定
められて振動自在に支持されたピストンを備えた複動型
油圧シリンダーのヘッド側オイル室とボトム側オイル室
をオイル側路で連通させ、そのヘッド側オイル室とボト
ム側オイル室とオイル側路に電気粘性流体または／およ
び磁気粘性流体を充填し、前記ピストンが受振する振動
源の振動の振動特性を検知してその振動特性に対応した
振動検知電気信号を発生させ、その振動検知電気信号を
基に演算して前記振動特性に対応した電源制御信号を算
出し、この電源制御信号に基づいて制御された電源出力
によって、前記オイル側路中の電気粘性流体または／お
よび磁気粘性流体に電界または／および磁界を印加する
ことにより、電気粘性流体または／および磁気粘性流体
の粘度を振動特性に応じて変化させ、この電気粘性流体
または／および磁気粘性流体の粘度変化によって、振動
特性に即応して前記弾性体の見掛けのばね定数を変化さ
せるようにして振動源の振動を制振するものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS One of the basic embodiments of the vibration control method according to the present invention is directed to a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate. The head-side oil chamber and the bottom-side oil chamber communicate with each other through an oil-side path, and the head-side oil chamber, the bottom-side oil chamber, and the oil-side path are filled with an electrorheological fluid and / or a magnetic viscous fluid, and the piston receives vibration. Detecting the vibration characteristic of the vibration of the vibration source, generating a vibration detection electric signal corresponding to the vibration characteristic, calculating based on the vibration detection electric signal to calculate a power control signal corresponding to the vibration characteristic, By applying an electric field or / and a magnetic field to the electrorheological fluid or / and the magnetorheological fluid in the oil bypass by a power supply output controlled based on a power supply control signal, The viscosity of the viscous fluid and / or the magnetic viscous fluid is changed in accordance with the vibration characteristics, and the apparent spring constant of the elastic body is changed in response to the vibration characteristics due to the change in the viscosity of the electrorheological fluid and / or the magnetic viscous fluid. Thus, the vibration of the vibration source is damped.
【００１８】この発明に係る振動制御方法の他の基本的
な実施形態は、振動源の振動を受振する制振筐体に電気
粘性ゲルを封入し、振動源の振動特性を検知してその振
動特性に対応した振動検知電気信号を発生させ、その振
動検知電気信号を基に演算して前記振動特性に対応した
電源制御信号を算出し、この電源制御信号に基づいて制
御された電源出力によって、制振筐体内の電気粘性ゲル
に電界を印加することにより、電気粘性ゲルの粘度を振
動特性に応じて変化させ、この電気粘性ゲルの粘度変化
によって、振動特性に即応して振動源の振動を制振する
ものである。In another basic embodiment of the vibration control method according to the present invention, an electro-rheological gel is sealed in a vibration damping housing for receiving vibration of a vibration source, and the vibration characteristics of the vibration source are detected by detecting the vibration characteristics of the vibration source. A vibration detection electric signal corresponding to the characteristic is generated, a power supply control signal corresponding to the vibration characteristic is calculated based on the vibration detection electric signal, and a power supply output controlled based on the power supply control signal, By applying an electric field to the electrorheological gel in the vibration damping housing, the viscosity of the electrorheological gel is changed according to the vibration characteristics, and the change in the viscosity of the electrorheological gel causes the vibration of the vibration source to respond immediately to the vibration characteristics. It controls the vibration.
【００１９】この発明に係る振動制御装置の基本的な実
施形態の一つは、弾性体によって初期位置が定められて
振動自在に支持されたピストンを備えた複動型油圧シリ
ンダーのヘッド側オイル室とボトム側オイル室をオイル
側路で連通させ、そのヘッド側オイル室とボトム側オイ
ル室とオイル側路に電気粘性流体または／および磁気粘
性流体を充填し、オイル側路中の電気粘性流体に電界を
印加する電界付与用電極、または／およびオイル側路中
の電磁粘性流体に磁界を印加する磁界付与用電磁石を、
前記オイル側路に配設し、前記ピストンが受振する振動
源の振動特性を検知してその振動特性に対応した振動検
知電気信号を発生させる振動センサーと、前記振動検知
電気信号を基に演算して前記振動特性に対応した電源制
御信号を算出するコンピュータと、この電源制御信号に
基づいて前記振動特性に応じた電圧・電流を前記電界付
与用電極または／および磁界付与用電磁石に供給する電
源装置を設けたものである。One of the basic embodiments of the vibration control device according to the present invention is a head-side oil chamber of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely. And the bottom-side oil chamber are communicated by an oil-side passage, and the head-side oil chamber, the bottom-side oil chamber, and the oil-side passage are filled with an electrorheological fluid or / and a magnetorheological fluid, and the electrorheological fluid in the oil-side passage is filled. An electric field applying electrode for applying an electric field, and / or a magnetic field applying electromagnet for applying a magnetic field to an electromagnetic viscous fluid in an oil bypass,
A vibration sensor disposed on the oil bypass, detecting a vibration characteristic of a vibration source received by the piston and generating a vibration detection electric signal corresponding to the vibration characteristic, and calculating based on the vibration detection electric signal A computer for calculating a power control signal corresponding to the vibration characteristic, and a power supply device for supplying a voltage / current corresponding to the vibration characteristic to the electric field applying electrode and / or the magnetic field applying electromagnet based on the power control signal Is provided.
【００２０】この発明に係る振動制御装置の他の基本的
な実施形態は、電気粘性ゲルが封入されこの電気粘性ゲ
ルに電界を印加する電界付与用電極が配設され振動源の
振動を受振する制振筐体と、前記振動源の振動特性を検
知してその振動特性に対応した振動検知電気信号を発生
させる振動センサーと、前記振動検知電気信号を基に演
算して前記振動特性に対応した電源制御信号を算出する
コンピュータと、この電源制御信号に基づいて前記振動
特性に応じた電圧を前記電界付与用電極に供給する電源
装置を備えたものである。In another basic embodiment of the vibration control device according to the present invention, an electrorheological gel is sealed, and an electric field applying electrode for applying an electric field to the electrorheological gel is provided to receive vibration of a vibration source. A vibration damping housing, a vibration sensor that detects a vibration characteristic of the vibration source and generates a vibration detection electric signal corresponding to the vibration characteristic, and operates based on the vibration detection electric signal to correspond to the vibration characteristic. A computer for calculating a power control signal; and a power supply for supplying a voltage corresponding to the vibration characteristic to the electric field applying electrode based on the power control signal.
【００２１】この発明に係る振動制御装置の他の実施形
態は、弾性体によって初期位置が定められて振動自在に
支持されたピストンを備え、ヘッド側オイル室とボトム
側オイル室とこれら両オイル室を連通させるオイル側路
に電気粘性流体または／および磁気粘性流体が充填さ
れ、前記オイル側路中の電気粘性流体に電界を印加する
電界付与用電極、または／および、前記オイル側路中の
磁気粘性流体に磁界を印加する磁界付与用電磁石が前記
オイル側路に配設された複動型油圧シリンダーと、前記
ピストンが受振する振動源の振動特性を検知してその振
動特性に対応した振動検知電気信号を発生させる振動セ
ンサーとを含む振動制御モジュールを形成し、前記振動
制御モジュールを前記振動源に多数並設すると共に、前
記振動検知電気信号を基に演算して前記振動特性に対応
した電源制御信号を算出するコンピュータと、この電源
制御信号に基づいて前記振動特性に応じた電圧・電流を
前記電界付与用電極または／および前記磁界付与用電磁
石に供給する電源装置を設けたものである。Another embodiment of the vibration control device according to the present invention includes a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely. The head-side oil chamber, the bottom-side oil chamber, and both oil chambers are provided. An electric viscous fluid and / or a magnetic viscous fluid is filled in an oil side passage which communicates with the oil passage, and an electric field applying electrode for applying an electric field to the electrorheological fluid in the oil side passage, and / or a magnetic field in the oil side passage A magnetic field applying electromagnet for applying a magnetic field to the viscous fluid is provided with a double-acting hydraulic cylinder disposed on the oil side passage, and a vibration source corresponding to the vibration characteristic detected by detecting a vibration characteristic of a vibration source received by the piston. A vibration control module including a vibration sensor that generates an electric signal; a plurality of the vibration control modules being arranged in parallel with the vibration source; A computer that calculates a power control signal corresponding to the vibration characteristic based on the power control signal, and a voltage / current corresponding to the vibration characteristic based on the power control signal, the electric field applying electrode and / or the magnetic field applying electromagnet. A power supply device for supplying power to the power supply is provided.
【００２２】この発明に係る振動制御装置の他の実施形
態は、電気粘性ゲルが封入されこの電気粘性ゲルに電界
を印加する電界付与用電極が配設され振動源の振動を受
振する制振筐体と、前記振動源の振動特性を検知してそ
の振動特性に対応した振動検知電気信号を発生させる振
動センサーとを含む振動制御モジュールを形成し、前記
振動制御モジュールを前記振動源に多数並設すると共
に、前記振動検知電気信号を基に演算して前記振動特性
に対応した電源制御信号を算出するコンピュータと、こ
の電源制御信号に基づいて前記振動特性に応じた電圧を
前記電界付与用電極に供給する電源装置を設けたもので
ある。Another embodiment of the vibration control apparatus according to the present invention is a vibration damping case in which an electrorheological gel is sealed, an electric field applying electrode for applying an electric field to the electrorheological gel is provided, and a vibration source is vibrated. A vibration control module including a body and a vibration sensor that detects vibration characteristics of the vibration source and generates a vibration detection electric signal corresponding to the vibration characteristic is formed, and a large number of the vibration control modules are arranged in parallel with the vibration source. And a computer that calculates a power control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal, and applies a voltage corresponding to the vibration characteristic to the electric field applying electrode based on the power control signal. A power supply device is provided.
【００２３】この発明に係る振動制御装置の他の実施形
態は、弾性体によって初期位置が定められて振動自在に
支持されたピストンを備えヘッド側オイル室とボトム側
オイル室とこれら両オイル室を連通させるオイル側路に
電気粘性流体または／および磁気粘性流体が充填され前
記オイル側路中の電気粘性流体に電界を印加する電界付
与用電極、または／および、前記オイル側路中の磁気粘
性流体に磁界を印加する磁界付与用電磁石が前記オイル
側路に配設された複動型油圧シリンダーと、前記ピスト
ンが受振する振動源の振動特性を検知してその振動特性
に対応した振動検知電気信号を発生させる振動センサー
と、電気粘性ゲルが封入されこの電気粘性ゲルに電界を
印加する電界付与用電極が配設されて振動源の振動を受
振する制振筐体と、制振筐体が受振する振動源の振動特
性を検知してその振動特性に対応した振動検知電気信号
を発生させる振動センサーと、前記２種の振動検知電気
信号をそれぞれ基に演算して前記各振動特性にそれぞれ
対応した電源制御信号を算出するコンピュータと、これ
らの電源制御信号に基づいて前記各振動特性に応じた電
圧・電流を前記電界付与用電極または／および磁界付与
用電磁石に供給する電源装置を設けたものである。Another embodiment of the vibration control device according to the present invention comprises a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely. An electric viscous fluid and / or a magnetic viscous fluid filled in an oil side passage to be communicated and an electric field applying electrode for applying an electric field to the electrorheological fluid in the oil side passage, and / or a magnetic viscous fluid in the oil side passage A magnetic field applying electromagnet for applying a magnetic field to the oil bypass path, a double-acting hydraulic cylinder, and a vibration detection electric signal corresponding to the vibration characteristic by detecting vibration characteristics of a vibration source received by the piston. A vibration sensor that generates vibrations, a vibration-suppressing housing that encloses the electrorheological gel, and is provided with an electric field applying electrode that applies an electric field to the electrorheological gel, and receives vibration of a vibration source. A vibration sensor that detects a vibration characteristic of a vibration source received by the vibration damping housing and generates a vibration detection electric signal corresponding to the vibration characteristic, and calculates each of the two types of vibration detection electric signals based on the two types of vibration detection electric signals. A computer for calculating a power control signal corresponding to each of the vibration characteristics, and a power supply for supplying a voltage and a current corresponding to each of the vibration characteristics to the electric field applying electrode and / or the magnetic field applying electromagnet based on the power control signals A device is provided.
【００２４】[0024]
【実施例】以下この発明を、図面に示す実施例を参考に
説明する。図１はこの発明に係る振動制御装置の基本構
成を示すものである。Ｓは複動型油圧シリンダーで、１
はシリンダーケース、２はピストン、３はピストンロッ
ド、４はヘッド側オイル室、５はボトム側オイル室であ
る。そしてヘッド側オイル室４の端部４ａとボトム側オ
イル室５の端部５ａを連通するオイル側路６が設けられ
ている。ピストンロッド３の先端には、外部の振動源Ｐ
の振動ｆを受振する受振ブロック７が連結され、外部の
振動源Ｐの振動ｆは受振ブロック７とピストンロッド３
を介してピストン２に伝達される。受振ブロック７には
振動センサー８が付加されている。振動センサー８は、
受振ブロック７で受けた振動源Ｐの振動ｆの方向、振
幅、周波数（振動数）、速度、加速度などの振動特性を
検知してその振動特性に対応した振動検知電気信号ｘを
発生させる。また９は、ピストンロッド３に付加した弾
性材で、ピストン２は弾性材９によって初期位置が定め
られて振動自在に支持されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 shows a basic configuration of a vibration control device according to the present invention. S is a double-acting hydraulic cylinder, 1
Is a cylinder case, 2 is a piston, 3 is a piston rod, 4 is a head side oil chamber, and 5 is a bottom side oil chamber. An oil passage 6 is provided for communicating the end 4 a of the head-side oil chamber 4 and the end 5 a of the bottom-side oil chamber 5. At the tip of the piston rod 3, an external vibration source P
A vibration receiving block 7 for receiving the vibration f of the vibration is connected, and the vibration f of the external vibration source P is applied to the vibration receiving block 7 and the piston rod 3.
Is transmitted to the piston 2 via A vibration sensor 8 is added to the vibration receiving block 7. The vibration sensor 8
A vibration characteristic such as a direction, an amplitude, a frequency (frequency), a speed, and an acceleration of the vibration f of the vibration source P received by the vibration receiving block 7 is detected, and a vibration detection electric signal x corresponding to the vibration characteristic is generated. Reference numeral 9 denotes an elastic material added to the piston rod 3, and an initial position of the piston 2 is determined by the elastic material 9, and the piston 2 is supported so as to be freely vibrated.
【００２５】ヘッド側オイル室４とボトム側オイル室５
ならびにオイル側路６には、作動油として、ＥＲＦ１０
あるいはＭＲＦ１１が充填され、オイル側路６には、Ｅ
ＲＦ１０に電界を印加するための電界付与用電極１２や
ＭＲＦ１１に磁界を印加するための磁界付与用電磁石１
３を配設される。そして作動油としてＥＲＦ１０が用い
られるかＭＲＦ１１が用いられるかに対応して、電界付
与用電極１２あるいは磁界付与用電磁石１３のいずれか
をオイル側路６に装着すれば良いが、ＥＲＦ１０あるい
はＭＲＦ１１のいずれにも対応し得るように、予めオイ
ル側路６に電界付与用電極１２と磁界付与用電磁石１３
の双方を装着しても良い。なお、ここで用いているＥＲ
Ｆ１０は、フッ素変成シリコンオイル（電気絶縁性分散
媒）中に、酸化チタンの薄膜コーティングを施した直径
１〜１０μｍのポリマー（分散相粒子）（絶縁性固体粒
子：ＥＲ粒子）を１０〜３０重量％程度分散させた混合
液で、そのＥＲＦ１０に数ｋV／ｍｍ程度の電界を印加
するとＥＲＦ１０の粘度が１００〜１０００倍にも上昇
し、その可逆的な粘度変化の応答速度は数ｍｓ〜数１０
ｍｓと速い。またＭＲＦ１１の例は、シリコンオイルに
磁性粉を１０〜４０重量％分散させた懸濁液で、そのＭ
ＲＦ１１に１テスラ以下の磁界を印加すると、ＭＲＦ１
１の粘度が飛躍的に増加する。なお、ＥＲＦ１０とＭＲ
Ｆ１１の両者を混合して用いることも可能である。Head-side oil chamber 4 and bottom-side oil chamber 5
In addition, ERF 10
Alternatively, the MRF 11 is filled, and E
Electrode 12 for applying an electric field to RF 10 and electromagnet 1 for applying a magnetic field to MRF 11
3 is arranged. Depending on whether ERF10 or MRF11 is used as the hydraulic oil, either the electric field applying electrode 12 or the magnetic field applying electromagnet 13 may be attached to the oil bypass 6, but either the ERF10 or the MRF11 may be used. In order to cope with this problem, the electric field applying electrode 12 and the magnetic field applying electromagnet 13
May be installed. The ER used here
F10 is a fluorine-modified silicone oil (electrically insulating dispersion medium) containing 10 to 30 weight% of a polymer (dispersed phase particles) having a thin film coating of titanium oxide and having a diameter of 1 to 10 μm (insulating solid particles: ER particles). % Of the mixed liquid dispersed therein, when an electric field of several kV / mm is applied to the ERF 10, the viscosity of the ERF 10 increases 100 to 1000 times, and the response speed of the reversible viscosity change is several ms to several tens.
ms and fast. An example of the MRF 11 is a suspension in which magnetic powder is dispersed in silicon oil by 10 to 40% by weight.
When a magnetic field of 1 Tesla or less is applied to RF11, MRF1
The viscosity of No. 1 increases dramatically. ERF10 and MR
It is also possible to use a mixture of both F11.
【００２６】また１４はコンピュータ、１５は電源装置
である。電源装置１５は電界付与用電極１２あるいは磁
界付与用電磁石１３のコイルに電圧・電流を供給する電
源装置（ＥＲＦ１０、ＭＲＦ１１を機能させるための小
型高圧電源）であり、コンピュータ１４は、振動センサ
ー８で検知した振動検知電気信号ｘを基に、その振動を
制振するために電界付与用電極１２あるいは磁界付与用
電磁石１３に印加する適正な電源電圧Ｖab，Ｖab’を発
生させるための電源制御信号ｙを演算しその電源制御信
号ｙを電源装置１５へ出力するものである。Reference numeral 14 denotes a computer, and 15 denotes a power supply device. The power supply device 15 is a power supply device (small high-voltage power supply for causing the ERF 10 and the MRF 11 to function) for supplying a voltage and a current to the coil of the electric field application electrode 12 or the magnetic field application electromagnet 13. A power control signal y for generating appropriate power supply voltages Vab, Vab ′ to be applied to the electric field applying electrode 12 or the magnetic field applying electromagnet 13 for damping the vibration based on the detected vibration detection electric signal x. And outputs the power control signal y to the power supply device 15.
【００２７】すなわち、コンピュ−タ１４は、振動検知
電気信号ｘを入力する入力部１４ａと、振動検知電気信
号ｘを基に前記所要の電源制御信号ｙを演算するプログ
ラムを収納した記憶装置１４ｂと、そのプログラムに従
って電源制御信号ｙを演算するＣＰＵ１４ｃと、演算し
た電源制御信号ｙを電源装置１５へ出力する出力部１４
ｄを含んでなる。なお、１６はシリンダーケース１を設
置した基盤である。That is, the computer 14 has an input section 14a for inputting a vibration detection electric signal x, and a storage device 14b storing a program for calculating the required power control signal y based on the vibration detection electric signal x. A CPU 14c for calculating a power control signal y according to the program, and an output unit 14 for outputting the calculated power control signal y to the power supply device 15.
d. Reference numeral 16 denotes a base on which the cylinder case 1 is installed.
【００２８】この装置において、振動源Ｐの例えば垂直
方向の振動ｆは受振ブロック７で受振されピストン１に
伝わり、ピストン１はシリンダーケース１内のＥＲＦ１
０または／およびＭＲＦ１１の中で振動する。同時に受
振ブロック７で受振されされた振動源Ｐの振動ｆの振動
特性（振動周波数、振動数、振幅、振動方向、速度、加
速度など）が振動センサー８で検知され振動検知電気信
号ｘが得られる。この振動検知電気信号ｘはコンピュー
タ１４に入力され、振動検知電気信号ｘを基に電源制御
信号ｙを算出する演算プログラムに従って演算され、振
動ｆに対応する電源制御信号ｙが得られる。電界付与用
電極１２ｈ電源電圧Ｖab，Ｖab’はそれぞれ電界付与用
電極１２、磁界付与用電磁石１３に印加される。その結
果、オイル側路６中のＥＲＦ１０には振動ｆに対応した
電界が作用し、ＭＲＦ１１には振動ｆに対応した磁界が
作用して、ＥＲＦ１０または／およびＭＲＦ１１の粘度
が振動ｆの特性に即応して大きく且つ敏速に増減する。In this device, for example, a vertical vibration f of the vibration source P is received by the vibration receiving block 7 and transmitted to the piston 1, and the piston 1 receives the ERF1 in the cylinder case 1.
Vibrates in 0 or / and MRF11. At the same time, the vibration characteristics (vibration frequency, frequency, amplitude, vibration direction, speed, acceleration, etc.) of the vibration f of the vibration source P received by the vibration receiving block 7 are detected by the vibration sensor 8 and the vibration detection electric signal x is obtained. . The vibration detection electric signal x is input to the computer 14 and is calculated according to a calculation program for calculating the power control signal y based on the vibration detection electric signal x, thereby obtaining a power control signal y corresponding to the vibration f. The power supply voltages Vab and Vab 'for the electric field applying electrode 12h are applied to the electric field applying electrode 12 and the magnetic field applying electromagnet 13, respectively. As a result, an electric field corresponding to the vibration f acts on the ERF 10 in the oil bypass 6, a magnetic field corresponding to the vibration f acts on the MRF 11, and the viscosity of the ERF 10 and / or the MRF 11 immediately adapts to the characteristics of the vibration f. Increase and decrease rapidly.
【００２９】例えば振動ｆを受振してピストン２に下方
向の力が働くと、ピストン２がヘッド側オイル室４内の
ＥＲＦ１０あるいはＭＲＦ１１を押し下げてそのＥＲＦ
１０あるいはＭＲＦ１１をオイル側路６を通じてボトム
側オイル室５へ移そうとする現象が生ずるが、このとき
上記のように、オイル側路６中のＥＲＦ１０または／お
よびＭＲＦ１１の粘度が振動ｆに対応して変化し大きく
なっていて、ＥＲＦ１０、ＭＲＦ１１の流動性が低くな
るので、受振ブロック７の動きが抑制され、振動源Pの
振動はＥＲＦ１０または／およびＭＲＦ１１の粘度変化
にともなって複動型油圧シリンダーＳ内で効果的に吸収
され、振動ｆが減衰、抑制、あるいは遮断されるもので
ある。For example, when a downward force acts on the piston 2 by receiving the vibration f, the piston 2 pushes down the ERF 10 or the MRF 11 in the oil chamber 4 on the head side, and the ERF 10
Attempts to move the MRF 10 or the MRF 11 to the bottom oil chamber 5 through the oil passage 6 occur. At this time, as described above, the viscosity of the ERF 10 or / and the MRF 11 in the oil passage 6 corresponds to the vibration f. The movement of the vibration receiving block 7 is suppressed, and the vibration of the vibration source P is changed by the change in the viscosity of the ERF 10 and / or the MRF 11, and the vibration of the vibration source P is reduced. The vibration f is effectively absorbed in S, and the vibration f is attenuated, suppressed, or cut off.
【００３０】なおこの発明装置の上記機能・作用から明
らかなように、電源装置１５から出力される電源電圧Ｖ
ab，Ｖab’は、振動源Ｐの振動ｆに適合してその振動ｆ
を抑制するように、ＥＲＦ１０あるいはＭＲＦ１１の粘
度を変化させるに適当な電圧であり、電源制御信号ｙは
そのような値の電源電圧Ｖab，Ｖab’を生成するための
電源制御信号であり、コンピュータ１４は、演算プログ
ラムによって、前記振動検知電気信号ｘを前記条件に適
合した電源制御信号ｙに変換する機能を奏するものであ
る。As is apparent from the above-described function and operation of the device of the present invention, the power supply voltage V
ab, Vab ′ are adapted to the vibration f of the vibration source P and the vibration f
The power supply control signal y is a power supply control signal for generating the power supply voltages Vab and Vab 'having such values so as to reduce the viscosity of the ERF 10 or the MRF 11 so as to suppress Has a function of converting the vibration detection electric signal x into a power supply control signal y that meets the above conditions by an arithmetic program.
【００３１】なお、図１に示した例では、垂直方向の振
動ｆに対応するために複動型油圧シリンダーＳを垂直に
設置して用いているが、複動型油圧シリンダーＳを水平
方向に設置して水平方向の振動の制振に対応させること
ができる。また、オイル側路６の取り付け部分に逆止弁
を挿入した複数のオイル側路６を併用することにより作
動油（ＥＲＦ１０あるいはＭＲＦ１１）の流れに方向性
を持たせることにより高度な制御も可能になる。また複
動型油圧シリンダーＳは上下を反転させて設置すること
も勿論可能であり、弾性体９は、シリンダーケース１と
ピストン２・ピストンロッド３の相対関係により、シリ
ンダーケース１の下部や上下双方に配設しても良い。In the example shown in FIG. 1, the double-acting hydraulic cylinder S is installed vertically to cope with the vibration f in the vertical direction. It can be installed to support vibration suppression in the horizontal direction. Also, by using a plurality of oil side passages 6 in which a check valve is inserted in a mounting portion of the oil side passages 6, a flow of the hydraulic oil (ERF10 or MRF11) is made directional so that advanced control is possible. Become. The double-acting hydraulic cylinder S can of course be installed upside down, and the elastic body 9 can be mounted on the lower part of the cylinder case 1 or on both sides depending on the relative relationship between the cylinder case 1 and the piston 2 and the piston rod 3. May be arranged.
【００３２】図２は、この発明の他の実施例を示すもの
で、大型の振動源に対する振動制御装置の例であり、垂
直方向の振動ｆと水平方向の振動ｈを同時に制振する例
であり、また図１に示したような複動型油圧シリンダー
を用いる方式と、ＥＲゲルを用いる方式を併用した例で
ある。図２において、PGは大型の振動源（例えば試験設
備、製造設備、建造物など）で、振動源PGに、多数の振
動制御モジュールＭ１，Ｍ２，Ｍ３，Ｍ４，Ｍ５を垂直
方向に並設付加したものである。振動制御モジュールＭ
１〜Ｍ５はそれぞれ、図１で示したような、複動型油圧
シリンダーＳと垂直方向の振動の振動特性を検知する振
動センサー８を含めたモジュールであり、振動源PGの垂
直方向の振動を受振して、振動センサー８がその振動特
性を検知しその振動特性に対応した振動検知電気信号ｘ
１，ｘ２，ｘ３，ｘ４，ｘ５を発する。１ｈは筒状の制
振筐体で、制振筐体１ｈ内には電気粘性ゲル（「ＥＲゲ
ル」と略す）１０Gを封入し、このＥＲゲル１０Ｇをサ
ンドイッチ状に挟む状態で電界付与用電極１２ｈを制振
筐体１ｈに装着し、電界付与用電極１２ｈに振動センサ
ー８ｈ１，８ｈ２を付加したものである。そして制振筐
体１ｈと振動センサー８ｈ１，８ｈ２を含む制振モジュ
ールＭｇは、水平方向に向けて、振動制御モジュールＭ
１〜Ｍ５の下部に連結され、振動源PGの水平方向の振動
ｈを受振し、振動センサー８ｈ１，８ｈ２がその振動特
性を検知しその振動特性に対応した振動検知電気信号Ｈ
１，Ｈ２を発するものである。FIG. 2 shows another embodiment of the present invention, which is an example of a vibration control apparatus for a large vibration source, in which vertical vibration f and horizontal vibration h are simultaneously suppressed. This is an example in which a method using a double-acting hydraulic cylinder as shown in FIG. 1 and a method using an ER gel are used together. In FIG. 2, PG is a large vibration source (for example, a test facility, a manufacturing facility, a building, etc.), and a number of vibration control modules M1, M2, M3, M4, M5 are added to the vibration source PG in a vertical direction. It was done. Vibration control module M
Modules 1 to M5 each include a double-acting hydraulic cylinder S and a vibration sensor 8 for detecting vibration characteristics of vertical vibration, as shown in FIG. After receiving the vibration, the vibration sensor 8 detects the vibration characteristic, and the vibration detection electric signal x corresponding to the vibration characteristic.
1, x2, x3, x4, x5 are emitted. Reference numeral 1h denotes a cylindrical vibration-damping housing, in which an electro-rheological gel (abbreviated as “ER gel”) 10G is sealed in the vibration-damping housing 1h, and the ER gel 10G is sandwiched between the electrodes to apply an electric field. 12h is mounted on the vibration damping housing 1h, and vibration sensors 8h1 and 8h2 are added to the electric field applying electrode 12h. The vibration damping module Mg including the vibration damping housing 1h and the vibration sensors 8h1 and 8h2 is moved in the horizontal direction so that the vibration control module M
1 to M5, receives the horizontal vibration h of the vibration source PG, the vibration sensors 8h1 and 8h2 detect the vibration characteristics, and the vibration detection electric signal H corresponding to the vibration characteristics.
1, H2.
【００３３】また１４はコンピュータ、１５は電源装置
である。図２に示すコンピュータ１４は、振動センサー
８で検知した垂直方向の振動検知電気信号ｘ１，ｘ２，
ｘ３，ｘ４，ｘ５と振動センサー８ｈ１，８ｈ２で検知
した水平方向の振動検知電気信号H１，H２を基に、それ
らの振動を制振するためにオイル側路６の電界付与用電
極あるいは磁界付与用電磁石に印加する適正な電源電圧
Ｖab１，Ｖab２，Ｖab３，Ｖab４，Ｖab５，ならびに制
振筐体１ｈの電界付与用電極１２ｈに印加する適正な電
源電圧Ｖabｈを発生させるための電源制御信号ｙを演算
しその電源制御信号ｙを電源装置１５へ出力するもので
ある。そして図２に示す電源装置１５は、電源制御信号
ｙを受けて電源制御信号ｙに対応した適正な電源電圧Ｖ
ab１，Ｖab２，Ｖab３，Ｖab４，Ｖab５，ならびに電源
電圧Ｖabｈを発生させ、それらをそれぞれ振動制御モジ
ュールＭ１，Ｍ２，Ｍ３，Ｍ４，Ｍ５ならびに制振モジ
ュールＭｇへ供給するものである。Reference numeral 14 denotes a computer, and 15 denotes a power supply device. The computer 14 shown in FIG. 2 includes vertical vibration detection electric signals x1, x2, detected by the vibration sensor 8.
Based on x3, x4, x5 and horizontal vibration detection electric signals H1, H2 detected by the vibration sensors 8h1, 8h2, an electric field applying electrode or a magnetic field applying oil side passage 6 for damping those vibrations. A power supply control signal y for generating appropriate power supply voltages Vab1, Vab2, Vab3, Vab4, Vab5 to be applied to the electromagnet and an appropriate power supply voltage Vabh to be applied to the electric field applying electrode 12h of the vibration damping housing 1h is calculated. The power control signal y is output to the power supply device 15. Then, the power supply device 15 shown in FIG. 2 receives the power control signal y and receives an appropriate power supply voltage V corresponding to the power control signal y.
ab1, Vab2, Vab3, Vab4, Vab5 and a power supply voltage Vabh are generated and supplied to the vibration control modules M1, M2, M3, M4, M5 and the vibration suppression module Mg, respectively.
【００３４】ＥＲゲル１０ＧはＥＲＦをゲル化したもの
で、基本的の制振機能はＥＲＦと同じであるが、ＥＲＦ
をゲル化して用いることにより、ＥＲＦの分散安定性が
向上し実用面で優れたものとなる。すなわち、ＥＲＦは
電気絶縁性分散媒中に分散相粒子（絶縁性固体粒子：Ｅ
Ｒ粒子）を分散させた混合液であることから、長期間静
止状態に置くと、ＥＲ粒子の沈降性が問題となるが、Ｅ
Ｒゲルを用いることによりその沈降性の問題が改善さ
れ、長期にわたり安定したＥＲ効果が得られる。なお、
ゲル化しないＥＲＦを用いた複動型油圧シリンダー方式
の振動制御装置を図１に示すように縦に設置する場合
は、ＥＲＦの粒子沈降を考えねばならぬが、この発明の
前記実施例のように、シリンダーケース１の最下端（オ
イル室の最下端）からオイル側路６を引き出す構造を採
れば、長期間静止状態にあった後でも、装置を起動すれ
ば沈降したＥＲ粒子が強制的に撹拌されて沈降性の問題
は解決され、確実に安定した制振効果を得ることができ
る。The ER gel 10G is a gel of ERF and has the same basic vibration damping function as ERF.
By gelling the ERF, the dispersion stability of the ERF is improved, and it becomes excellent in practical use. That is, the ERF is composed of dispersed phase particles (insulating solid particles: E
R particles), the sedimentation of the ER particles becomes a problem when it is kept stationary for a long period of time.
By using the R gel, the problem of sedimentation is improved, and a long-term stable ER effect can be obtained. In addition,
When a double-acting hydraulic cylinder type vibration control device using a non-gelling ERF is installed vertically as shown in FIG. 1, the sedimentation of the ERF must be considered, but as in the above embodiment of the present invention. In addition, if a structure is adopted in which the oil bypass 6 is drawn out from the lowermost end of the cylinder case 1 (the lowermost end of the oil chamber), even if the apparatus is in a stationary state for a long time, the sedimented ER particles are forcibly activated by starting the apparatus. The problem of sedimentation is solved by stirring, and a stable vibration damping effect can be reliably obtained.
【００３５】[0035]
【発明の効果】上記の実施例からも明らかなように、こ
の発明の振動制御方法と振動制御装置によれば、振動源
の振動の特性を検知しその振動特性を基にＥＲ・ＭＲ流
体の粘度を振動源の振動の特性に対応させて自動的に迅
速に変化させ、これによって超低周波域から高周波域ま
での広帯域にわたる周波数の振動に対して、また種々の
振幅の振動に対して、有効な制振効果を得ることがで
き、殊に従来制振効果を得ることが難しかった超低周波
域の振動に対しても良好な効果を上げることができる。
またこの発明の振動制御方法と振動制御装置は、上記の
ように極めて汎用性に富んでいる上に、構成要素が、従
来から良く知られている複動型油圧シリンダーや簡単な
構造の制振筐体、一般的なコンピュータ、電源装置など
数少ない基本要素からなるので、装置の製造・利用に要
する負担が少なく実用化面でも優れたものである。As is clear from the above embodiments, according to the vibration control method and the vibration control device of the present invention, the characteristics of the vibration of the vibration source are detected, and the ER / MR fluid is detected based on the vibration characteristics. The viscosity is automatically and quickly changed in accordance with the characteristics of the vibration of the vibration source, whereby vibrations of a wide frequency range from a very low frequency range to a high frequency range, and vibrations of various amplitudes, An effective vibration damping effect can be obtained, and in particular, a favorable effect can be obtained even for vibrations in an ultra-low frequency range where it has been difficult to obtain the conventional vibration damping effect.
Further, the vibration control method and the vibration control device according to the present invention are extremely versatile as described above, and the components are a double-acting hydraulic cylinder and a vibration control device having a simple structure. Since it is composed of a few basic elements such as a housing, a general computer, and a power supply device, the load required for manufacturing and using the device is small, and the device is excellent in practical use.
【図面の簡単な説明】[Brief description of the drawings]
【図１】この発明の実施例を示す振動制御装置の基本構
成図。FIG. 1 is a basic configuration diagram of a vibration control device showing an embodiment of the present invention.
【図２】この発明の他の実施例を示す振動制御装置の構
成図。FIG. 2 is a configuration diagram of a vibration control device showing another embodiment of the present invention.
１ ：シリンダ−ケース ｆ，ｈ：振動 １ｈ：制振筐体 Ｍ１〜Ｍ５：
振動制御モジュール ２ ：ピストン Ｍｇ ：制振
モジュール ３ ：ピストンロッド Ｐ ：振動源 ４ ：ヘッド側オイル室 ＰＧ：大型振
動源 ４ａ：ヘッド側オイル室の端部 Ｓ ：複動型
油圧シリンダー ５ ：ボトム側オイル室 Ｖab，Ｖab１
〜Ｖab５，Ｖabｈ ５ｂ：ボトム側オイル室の端部 ：電源電
圧 ６ ：オイル側路 Ｖab’：電源
電圧 ７ ：受振ブロック ｘ，ｘ１〜ｘ
５，Ｈ１，Ｈ２ ８，８ｈ１，８ｈ２：振動センサー ：振動
検知電気信号 ９ ：弾性体 ｙ ：電源制
御信号 １０ ：電気粘性流体（ＥＲＦ） １０Ｇ：電気粘性ゲル（ＥＲゲル） １１ ：磁気粘性流体（ＭＲＦ） １２，１２ｈ：電界付与用電極 １３ ：磁界付与用電磁石 １４ ：コンピュータ １４ａ：入力部 １４ｂ：記憶装置 １４ｃ：ＣＰＵ １４ｄ：出力部 １５ ：電源装置 １６ ：基盤1: Cylinder-case f, h: Vibration 1h: Vibration suppression housing M1 to M5:
Vibration control module 2: Piston Mg: Vibration suppression module 3: Piston rod P: Vibration source 4: Head side oil chamber PG: Large vibration source 4a: End of head side oil chamber S: Double acting hydraulic cylinder 5: Bottom side Oil chamber Vab, Vab1
Vab5, Vabh 5b: End of bottom oil chamber: Power supply voltage 6: Oil side path Vab ': Power supply voltage 7: Vibration receiving block x, x1 to x
5, H1, H2 8, 8h1, 8h2: vibration sensor: vibration detection electric signal 9: elastic body y: power supply control signal 10: electrorheological fluid (ERF) 10G: electrorheological gel (ER gel) 11: magneto-rheological fluid ( MRF) 12, 12h: Electric field application electrode 13: Magnetic field application electromagnet 14: Computer 14a: Input unit 14b: Storage device 14c: CPU 14d: Output unit 15: Power supply device 16: Base
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3J048 AA06 AB07 AC07 AC08 BE05 BE06 DA01 3J069 AA50 DD25 EE63 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3J048 AA06 AB07 AC07 AC08 BE05 BE06 DA01 3J069 AA50 DD25 EE63
Claims (12)
動自在に支持されたピストンを備えた複動型油圧シリン
ダーのヘッド側オイル室とボトム側オイル室をオイル側
路で連通させ、そのヘッド側オイル室とボトム側オイル
室とオイル側路に電気粘性流体または／および磁気粘性
流体を充填し、前記ピストンが受振する振動源の振動の
振動特性を検知してその振動特性に対応した振動検知電
気信号を発生させ、その振動検知電気信号を基に演算し
て前記振動特性に対応した電源制御信号を算出し、この
電源制御信号に基づいて制御された電源出力によって、
前記オイル側路中の電気粘性流体または／および磁気粘
性流体に電界または／および磁界を印加することによ
り、前記電気粘性流体または／および前記磁気粘性流体
の粘度を前記振動特性に応じて変化させ、この電気粘性
流体または／および磁気粘性流体の粘度変化によって、
前記振動特性に即応して前記弾性体の見掛けのばね定数
を変化させるようにして前記振動源の振動を制振するこ
とを特徴とする振動制御方法。1. A head-side oil chamber and a bottom-side oil chamber of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be freely oscillated, communicate with an oil-side passage, The oil chamber, the bottom-side oil chamber, and the oil-side passage are filled with an electrorheological fluid and / or a magnetic viscous fluid, and the vibration characteristics of the vibration of the vibration source received by the piston are detected, and the vibration detection electric corresponding to the vibration characteristics is detected. Generating a signal, calculating a power supply control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal, by a power supply output controlled based on the power supply control signal,
By applying an electric field or / and a magnetic field to the electrorheological fluid or / and the magnetorheological fluid in the oil bypass, changing the viscosity of the electrorheological fluid or / and / or the magnetorheological fluid according to the vibration characteristics, Due to the change in viscosity of the electrorheological fluid and / or the magnetorheological fluid,
A vibration control method, wherein the vibration of the vibration source is damped by changing an apparent spring constant of the elastic body in response to the vibration characteristic.
粘性ゲルを封入し、前記振動源の振動特性を検知してそ
の振動特性に対応した振動検知電気信号を発生させ、そ
の振動検知電気信号を基に演算して前記振動特性に対応
した電源制御信号を算出し、この電源制御信号に基づい
て制御された電源出力によって、前記制振筐体内の電気
粘性ゲルに電界を印加することにより、前記電気粘性ゲ
ルの粘度を前記振動特性に応じて変化させ、この電気粘
性ゲルの粘度変化によって、前記振動特性に即応して前
記振動源の振動を制振することを特徴とする振動制御方
法。2. An electrorheological gel is sealed in a vibration damping housing for receiving vibration of a vibration source, and the vibration characteristics of the vibration source are detected to generate a vibration detection electric signal corresponding to the vibration characteristics. A power supply control signal corresponding to the vibration characteristic is calculated based on the detected electric signal, and an electric field is applied to the electrorheological gel in the vibration damping housing by a power supply output controlled based on the power supply control signal. Thus, the viscosity of the electrorheological gel is changed in accordance with the vibration characteristics, and the vibration of the vibration source is damped in response to the vibration characteristics by the change in the viscosity of the electrorheological gel. Control method.
動自在に支持されたピストンを備えた複動型油圧シリン
ダーのヘッド側オイル室とボトム側オイル室をオイル側
路で連通させ、そのヘッド側オイル室とボトム側オイル
室とオイル側路に電気粘性流体を充填し、前記オイル側
路中の電気粘性流体に電界を印加する電界付与用電極を
前記オイル側路に配設し、前記ピストンが受振する振動
源の振動特性を検知してその振動特性に対応した振動検
知電気信号を発生させる振動センサーと、前記振動検知
電気信号を基に演算して前記振動特性に対応した電源制
御信号を算出するコンピュータと、この電源制御信号に
基づいて前記振動特性に応じた電圧を前記電界付与用電
極に供給する電源装置を設けたことを特徴とする振動制
御装置。3. A head-side oil chamber and a bottom-side oil chamber of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely, are communicated with each other through an oil-side path. An oil chamber, a bottom oil chamber, and an oil passage are filled with an electrorheological fluid, and an electric field applying electrode for applying an electric field to the electrorheological fluid in the oil passage is arranged in the oil passage, and the piston is A vibration sensor that detects a vibration characteristic of a vibration source to be received and generates a vibration detection electric signal corresponding to the vibration characteristic, and calculates a power control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal And a power supply device for supplying a voltage corresponding to the vibration characteristic to the electric field applying electrode based on the power control signal.
動自在に支持されたピストンを備えた複動型油圧シリン
ダーのヘッド側オイル室とボトム側オイル室をオイル側
路で連通させ、そのヘッド側オイル室とボトム側オイル
室とオイル側路に磁気粘性流体を充填し、前記オイル側
路中の磁気粘性流体に磁界を印加する磁界付与用電磁石
を前記オイル側路に配設し、前記ピストンが受振する振
動源の振動特性を検知してその振動特性に対応した振動
検知電気信号を発生させる振動センサーと、前記振動検
知電気信号を基に演算して前記振動特性に対応した電源
制御信号を算出するコンピュータと、この電源制御信号
に基づいて前記振動特性に応じた電流を前記磁界付与用
電磁石に供給する電源装置を設けたことを特徴とする振
動制御装置。4. A head-side oil chamber and a bottom-side oil chamber of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported to vibrate freely are communicated by an oil-side path, and the head side An oil chamber, a bottom oil chamber and an oil passage are filled with a magnetic viscous fluid, and a magnetic field applying electromagnet for applying a magnetic field to the magnetorheological fluid in the oil passage is disposed in the oil passage. A vibration sensor that detects a vibration characteristic of a vibration source to be received and generates a vibration detection electric signal corresponding to the vibration characteristic, and calculates a power control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal And a power supply unit for supplying a current corresponding to the vibration characteristic to the magnetic field applying electromagnet based on the power supply control signal.
動自在に支持されたピストンを備えた複動型油圧シリン
ダーのヘッド側オイル室とボトム側オイル室をオイル側
路で連通させ、そのヘッド側オイル室とボトム側オイル
室とオイル側路に電気粘性流体および磁気粘性流体を充
填し、前記オイル側路中の電気粘性流体に電界を印加す
る電界付与用電極と、前記オイル側路中の電磁粘性流体
に磁界を印加する磁界付与用電磁石を、前記オイル側路
に配設し、前記ピストンが受振する振動源の振動特性を
検知してその振動特性に対応した振動検知電気信号を発
生させる振動センサーと、前記振動検知電気信号を基に
演算して前記振動特性に対応した電源制御信号を算出す
るコンピュータと、この電源制御信号に基づいて前記振
動特性に応じた電圧・電流を前記電界付与用電極ならび
に磁界付与用電磁石に供給する電源装置を設けたことを
特徴とする振動制御装置。5. A head-side oil chamber and a bottom-side oil chamber of a double-acting hydraulic cylinder having a piston whose initial position is determined by an elastic body and supported so as to be able to vibrate freely, are communicated by an oil-side path, and the head-side oil chamber is connected to the head-side oil chamber. An electric field applying electrode for filling an oil chamber, a bottom oil chamber and an oil passage with an electrorheological fluid and a magnetorheological fluid, and applying an electric field to the electrorheological fluid in the oil passage; A magnetic field applying electromagnet for applying a magnetic field to the viscous fluid is disposed on the oil side passage, and a vibration for detecting a vibration characteristic of a vibration source received by the piston and generating a vibration detection electric signal corresponding to the vibration characteristic. A sensor, a computer that calculates a power control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal, and a voltage corresponding to the vibration characteristic based on the power control signal -A vibration control device comprising a power supply device for supplying a current to the electric field applying electrode and the magnetic field applying electromagnet.
動自在に支持されたピストンを備え、ヘッド側オイル室
とボトム側オイル室とこれら両オイル室を連通させるオ
イル側路に電気粘性流体または／および磁気粘性流体が
充填され、前記オイル側路中の電気粘性流体に電界を印
加する電界付与用電極、または／および、前記オイル側
路中の磁気粘性流体に磁界を印加する磁界付与用電磁石
が前記オイル側路に配設された複動型油圧シリンダー
と、前記ピストンが受振する振動源の振動特性を検知し
てその振動特性に対応した振動検知電気信号を発生させ
る振動センサーとを含む振動制御モジュールを形成し、
前記振動制御モジュールを前記振動源に多数並設すると
共に、前記振動検知電気信号を基に演算して前記振動特
性に対応した電源制御信号を算出するコンピュータと、
この電源制御信号に基づいて前記振動特性に応じた電圧
・電流を前記電界付与用電極または／および前記磁界付
与用電磁石に供給する電源装置を設けたことを特徴とす
る振動制御装置。6. An electro-rheological fluid or / and / or an oil passage which is provided with a piston whose initial position is determined by an elastic body and which is supported so as to be able to vibrate freely and which communicates the head-side oil chamber, the bottom-side oil chamber, and the oil chambers. And an electric field applying electrode for applying an electric field to the electrorheological fluid in the oil passage, and / or a magnetic field applying electromagnet for applying a magnetic field to the magnetorheological fluid in the oil passage. Vibration control including a double-acting hydraulic cylinder disposed on the oil bypass and a vibration sensor for detecting vibration characteristics of a vibration source received by the piston and generating a vibration detection electric signal corresponding to the vibration characteristics. Form a module,
A computer that arranges a number of the vibration control modules in parallel with the vibration source, and calculates a power control signal corresponding to the vibration characteristic by calculating based on the vibration detection electric signal,
A vibration control device comprising: a power supply device that supplies a voltage / current according to the vibration characteristic to the electric field applying electrode and / or the magnetic field applying electromagnet based on the power control signal.
を異なる方向に向けて設置し、振動源の異なる方向の振
動を制振することを特徴とする請求項３ないし請求項６
のいずれか１項に記載の振動制御装置。7. The apparatus according to claim 3, wherein at least two double-acting hydraulic cylinders are installed in different directions to suppress vibrations of the vibration source in different directions.
The vibration control device according to any one of the above.
ルに電界を印加する電界付与用電極が配設され振動源の
振動を受振する制振筐体と、前記振動源の振動特性を検
知してその振動特性に対応した振動検知電気信号を発生
させる振動センサーと、前記振動検知電気信号を基に演
算して前記振動特性に対応した電源制御信号を算出する
コンピュータと、この電源制御信号に基づいて前記振動
特性に応じた電圧を前記電界付与用電極に供給する電源
装置を備えたことを特徴とする振動制御装置。8. An electroviscous gel is enclosed, an electric field applying electrode for applying an electric field to the electroviscous gel is provided, a vibration damping housing for receiving vibration of a vibration source, and detecting a vibration characteristic of the vibration source. A vibration sensor that generates a vibration detection electric signal corresponding to the vibration characteristic, a computer that calculates based on the vibration detection electric signal to calculate a power control signal corresponding to the vibration characteristic, A power supply device for supplying a voltage corresponding to the vibration characteristic to the electric field application electrode.
ルに電界を印加する電界付与用電極が配設され振動源の
振動を受振する制振筐体と、前記振動源の振動特性を検
知してその振動特性に対応した振動検知電気信号を発生
させる振動センサーとを含む振動制御モジュールを形成
し、前記振動制御モジュールを前記振動源に多数並設す
ると共に、前記振動検知電気信号を基に演算して前記振
動特性に対応した電源制御信号を算出するコンピュータ
と、この電源制御信号に基づいて前記振動特性に応じた
電圧を前記電界付与用電極に供給する電源装置を設けた
ことを特徴とする振動制御装置。9. An electroviscous gel is enclosed, an electric field applying electrode for applying an electric field to the electroviscous gel is provided, a vibration damping housing for receiving vibration of a vibration source, and detecting a vibration characteristic of the vibration source. A vibration sensor that generates a vibration detection electric signal corresponding to the vibration characteristics of the vibration control module, and a large number of the vibration control modules are arranged in parallel with the vibration source, and a calculation is performed based on the vibration detection electric signal. A computer that calculates a power supply control signal corresponding to the vibration characteristic, and a power supply device that supplies a voltage corresponding to the vibration characteristic to the electric field applying electrode based on the power supply control signal. Vibration control device.
向に向けて設置し、振動源の異なる方向の振動を制振す
ることを特徴とする請求項８または請求項９に記載の振
動制御装置。10. The vibration control device according to claim 8, wherein at least two vibration suppression housings are installed in different directions to dampen vibrations of the vibration source in different directions. .
振動自在に支持されたピストンを備えヘッド側オイル室
とボトム側オイル室とこれら両オイル室を連通させるオ
イル側路に電気粘性流体または／および磁気粘性流体が
充填され前記オイル側路中の電気粘性流体に電界を印加
する電界付与用電極、または／および、前記オイル側路
中の磁気粘性流体に磁界を印加する磁界付与用電磁石が
前記オイル側路に配設された複動型油圧シリンダーと、
前記ピストンが受振する振動源の振動特性を検知してそ
の振動特性に対応した振動検知電気信号を発生させる振
動センサーと、電気粘性ゲルが封入されこの電気粘性ゲ
ルに電界を印加する電界付与用電極が配設されて振動源
の振動を受振する制振筐体と、制振筐体が受振する振動
源の振動特性を検知してその振動特性に対応した振動検
知電気信号を発生させる振動センサーと、前記２種の振
動検知電気信号をそれぞれ基に演算して前記各振動特性
にそれぞれ対応した電源制御信号を算出するコンピュー
タと、これらの電源制御信号に基づいて前記各振動特性
に応じた電圧・電流を前記電界付与用電極または／およ
び磁界付与用電磁石に供給する電源装置を設けたことを
特徴とする振動制御装置。11. An electrorheological fluid or / and / or an oil passage which has a piston whose initial position is determined by an elastic body and which is supported so as to be able to vibrate freely, and which communicates the head-side oil chamber, the bottom-side oil chamber and the oil chambers. An electric field applying electrode filled with a magnetorheological fluid and applying an electric field to the electrorheological fluid in the oil side passage, and / or a magnetic field applying electromagnet for applying a magnetic field to the magnetorheological fluid in the oil side passage comprises the oil. A double-acting hydraulic cylinder disposed on the bypass,
A vibration sensor for detecting a vibration characteristic of a vibration source received by the piston and generating a vibration detection electric signal corresponding to the vibration characteristic, and an electric field applying electrode enclosing the electrorheological gel and applying an electric field to the electrorheological gel And a vibration sensor that detects vibration characteristics of the vibration source received by the vibration suppression housing and generates a vibration detection electric signal corresponding to the vibration characteristics. A computer that calculates a power control signal corresponding to each of the vibration characteristics by calculating based on each of the two types of vibration detection electrical signals, and a voltage / voltage corresponding to each of the vibration characteristics based on these power control signals. A vibration control device comprising a power supply device for supplying a current to the electric field applying electrode and / or the magnetic field applying electromagnet.
なる方向に向けて設置し、振動源の異なる方向の振動を
制振することを特徴とする請求項１１に記載の振動制御
装置。12. The vibration control device according to claim 11, wherein the double-acting hydraulic cylinder and the vibration-damping casing are installed in different directions to vibrate vibrations of the vibration source in different directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001177898A JP2002372095A (en) | 2001-06-13 | 2001-06-13 | Vibration control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001177898A JP2002372095A (en) | 2001-06-13 | 2001-06-13 | Vibration control method and device |
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| Publication Number | Publication Date |
|---|---|
| JP2002372095A true JP2002372095A (en) | 2002-12-26 |
Family
ID=19018674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001177898A Pending JP2002372095A (en) | 2001-06-13 | 2001-06-13 | Vibration control method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002372095A (en) |
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