JP3397199B2 - Control method of variable damping device for damping structure - Google Patents
Control method of variable damping device for damping structureInfo
- Publication number
- JP3397199B2 JP3397199B2 JP2000194844A JP2000194844A JP3397199B2 JP 3397199 B2 JP3397199 B2 JP 3397199B2 JP 2000194844 A JP2000194844 A JP 2000194844A JP 2000194844 A JP2000194844 A JP 2000194844A JP 3397199 B2 JP3397199 B2 JP 3397199B2
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- Japan
- Prior art keywords
- damping
- coefficient
- variable
- damping device
- control
- Prior art date
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、地震や風等の振
動外力による建物の揺れを低減するための制震構造物用
可変減衰装置の効率的な制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an efficient control method for a variable damping device for a seismic control structure for reducing the vibration of a building due to an external vibration force such as an earthquake or wind.
【０００２】[0002]
【従来の技術】建物の揺れを低減するための油圧ダンパ
形式の制震装置として、開閉制御弁の開度を全開、全閉
の２段階に制御可能とした可変減衰装置等がある（例え
ば、特許２９５９５５４号掲載公報参照）。2. Description of the Related Art As a damping system of a hydraulic damper type for reducing the vibration of a building, there is a variable damping device or the like in which the opening degree of an opening / closing control valve can be controlled in two stages of full opening and full closing (for example, See Japanese Patent No. 2959554).
【０００３】このような可変減衰装置の基本構造は、図
４に示すように、シリンダ２とシリンダ２内で往復動す
るピストン３、ピストン３の両側に設けられた油圧室
４、両油圧室４をつなぐ流路５に設けた開閉制御弁６な
どからなり、制御コントローラからの電流供給により開
閉制御弁６を全閉と全開の２段階に開閉動作させること
により、減衰係数を最大値Ｃmax と最小値Ｃmin の２段
階に切り替えることができる。The basic structure of such a variable damping device is, as shown in FIG. 4, a cylinder 2, a piston 3 which reciprocates in the cylinder 2, a hydraulic chamber 4 provided on both sides of the piston 3, and both hydraulic chambers 4. The opening / closing control valve 6 and the like provided in the flow path 5 for connecting the two are connected to each other, and the opening / closing control valve 6 is opened / closed in two stages of full closing and full opening by the current supply from the controller, so that the damping coefficient becomes the maximum value C max . It is possible to switch to two levels of the minimum value C min .
【０００４】このような可変減衰装置１０は、例えば建
物層間にブレース１３などの構造要素を介して取り付け
られるため、ブレース１３を含めた装置部の力学特性
は、図５に示すようなバネとダッシュポットが直列結合
したマクスウェル型のモデルで表される。Since such a variable damping device 10 is mounted between building layers via structural elements such as braces 13, the mechanical characteristics of the device part including the braces 13 are as shown in FIG. It is represented by a Maxwell type model in which pots are connected in series.
【０００５】上記特許２９５９５５４号掲載公報の発明
では、装置の減衰係数、すなわち弁開度を振動の振幅最
大点で切り替えることにより、図６に示すような大きな
エネルギー吸収を行い、構造物の振動を低減することが
できる。In the invention disclosed in the above-mentioned Japanese Patent No. 2959554, by switching the damping coefficient of the device, that is, the valve opening at the maximum amplitude point of vibration, large energy absorption as shown in FIG. It can be reduced.
【０００６】また、弁開度が全閉または全開という両端
の２段階のみをとればよいことから、弁開度を連続的に
可変制御できる装置（例えば、特公平７−４５７８１号
公報参照）と比べて、装置の構造を簡単にすることがで
きる。Further, since the valve opening need only take two steps, that is, the valve opening is fully closed or fully opened, a device capable of continuously variably controlling the valve opening (for example, see Japanese Patent Publication No. 7-45781). In comparison, the structure of the device can be simplified.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上述し
たような２段階切替え型の可変減衰装置を用いて、図６
のような制御を行うと、減衰係数をＣmax からＣmin に
切り替える変位最大点で、装置に発生していた荷重を急
激に除荷してしまうため、瞬間的に大きな加速度が発生
してしまうことがある。However, by using the two-step switching type variable damping device as described above, as shown in FIG.
When such control is performed, the load generated in the device is suddenly unloaded at the maximum displacement point at which the damping coefficient is switched from C max to C min , so that a large acceleration is instantaneously generated. Sometimes.
【０００８】建物応答変位を大きく低減して耐震安全性
を向上させるという意味では、上記の制御でも十分であ
るが、小さな地震や台風などによる風応答時には、発生
加速度により居住性が損なわれる可能性がある。In the sense that the building response displacement is greatly reduced and the seismic safety is improved, the above control is sufficient, but during a wind response due to a small earthquake or typhoon, there is a possibility that habitability will be impaired by the generated acceleration. There is.
【０００９】本願発明は、上述のような課題の解決を図
ったものであり、可変減衰装置について簡単な構造を維
持しながら、加速度と変位の両者の応答低減を可能とす
る制震構造物用可変減衰装置の制御方法を提供すること
を目的としている。The present invention is intended to solve the above-mentioned problems, and is for a vibration control structure capable of reducing the response of both acceleration and displacement while maintaining the simple structure of the variable damping device . An object of the present invention is to provide a control method for a variable damping device.
【００１０】[0010]
【課題を解決するための手段】本願の請求項１に係る制
震構造物用可変減衰装置の制御方法は、シリンダと、前
記シリンダ内で往復動するピストンと、前記ピストンの
両側に設けられた油圧室と、前記両油圧室をつなぐ複数
の流路に設けられた開閉制御弁とを備え、前記複数の流
路に設けられた開閉制御弁の開閉を制御することで、装
置の減衰係数を３段階以上の多段階に切り替えられるよ
うにした可変減衰装置の制御方法であって、振動外力に
対する応答変位について、振動サイクルにおける応答変
位が振幅最大点に至る手前で減衰係数を最大の減衰係数
Ｃ max から中間の減衰係数Ｃ mid に切り替えることで可
変減衰装置に発生していた力の急激な除荷を避け、振幅
最大点で減衰係数を中間の減衰係数Ｃ mid から最小の減
衰係数Ｃ min に切り替えることで残っていた荷重を完全
に吸収して再び減衰係数を最大の減衰係数Ｃ max に切り
替える制御を繰り返すことを特徴とするものである。According to a first aspect of the present invention, there is provided a control method for a variable damping device for a vibration control structure, which is provided on a cylinder, a piston reciprocating in the cylinder, and both sides of the piston. A plurality of hydraulic chambers that connect both hydraulic chambers
E Bei and provided in the flow channel opening and closing control valve, by controlling the opening and closing of the front SL-off control valve provided in a plurality of channels, to switch the damping coefficient of the device in multiple stages of three or more stages The control method of the variable damping device
The response displacement in the vibration cycle.
The maximum damping coefficient before the position reaches the maximum amplitude point
Possible by switching from C max to an intermediate damping coefficient C mid
Avoid sudden unloading of the force generated in the variable damping device, and
At the maximum point, the attenuation coefficient is reduced to the minimum value from the intermediate attenuation coefficient C mid.
Completely remove the remaining load by switching to the extinction coefficient C min
And the attenuation coefficient is cut again to the maximum attenuation coefficient C max .
It is characterized in that the control for changing is repeated .
【００１１】この可変減衰装置は、従来の可変減衰装置
と同様、例えばシリンダを柱梁架構の梁に固定し、ピス
トンをブレースあるいは耐震壁などの耐震要素に連結す
ることで、柱梁架構内に組み込まれる（シリンダとピス
トンを逆に取り付けたり、装置を耐震要素内に組み込む
こともできる）。This variable damping device, like the conventional variable damping device, is fixed inside the column-beam frame by, for example, fixing the cylinder to the beam of the column-beam frame and connecting the piston to a seismic element such as a brace or a seismic wall. Incorporated (cylinder and piston can be installed in reverse, or the device can be incorporated into seismic element)
【００１２】各流路の開閉制御弁は、基本的には全開と
全閉、あるいは特定の減衰係数を与えるある絞りを有す
る２種類の開度（開と閉）の間での制御ができるもので
あればよい。その場合、全ての開閉制御弁を閉とするこ
とで、減衰係数が最大の減衰係数Ｃmax をとることにな
る。The open / close control valve for each flow path can basically be controlled between fully open and fully closed, or between two types of opening (open and closed) having a certain throttle that gives a specific damping coefficient. If In that case, by closing all the on-off control valves, the damping coefficient has the maximum damping coefficient C max .
【００１３】本願発明の主たる対象となる減衰係数を３
段階に切り替え可能な可変減衰装置を制御する場合につ
いてみると、両油圧室をつなぐ２つの流路を並列に設
け、両流路に開閉制御弁を設け、一方の流路にさらにオ
リフィスなどの絞りを設けるか、あるいは上述のように
開閉制御弁自体の開度を異ならせることで、何れか一方
を閉じた場合について２種類の減衰係数Ｃmid ，Ｃmin
が得られる。The damping coefficient which is the main object of the present invention is 3
As for the case of controlling a variable damping device that can be switched in stages, two flow paths connecting both hydraulic chambers are provided in parallel, an opening / closing control valve is provided in both flow paths, and one flow path further has an orifice or other throttle. Is provided, or the opening degree of the on-off control valve itself is made different as described above, so that two types of damping coefficients C mid and C min are closed when either one is closed.
Is obtained.
【００１４】従って、２つの流路の併せて２つの開閉制
御弁を制御することで、最大の減衰係数Ｃmax 、中間の
減衰係数Ｃmid 、最小の減衰係数Ｃmin （通常、開度の
大きい開閉制御弁が開いている場合は、他方の開閉制御
弁の開閉状態に関わらず、実質的に、最小の減衰係数Ｃ
min となる）の３段階の減衰係数の間で制御することが
可能となる。Therefore, by controlling the two opening / closing control valves in combination with the two flow paths, the maximum damping coefficient C max , the intermediate damping coefficient C mid , and the minimum damping coefficient C min (usually, the opening is large). When the open / close control valve is opened, the minimum damping coefficient C is substantially obtained regardless of the open / close state of the other open / close control valve.
It becomes possible to control between three steps of damping factors (being min ).
【００１５】また、原理的には、４段階以上の切り替え
も、並列な流路の数を増やすことで、同様に考えること
ができる。In principle, switching in four or more stages can be considered in the same way by increasing the number of parallel flow paths.
【００１６】請求項２は、請求項１に係る制震構造物用
可変減衰装置の制御方法において、前記可変減衰装置
が、前記複数の流路の少なくとも１つに、該流路の開閉
制御弁と直列にオリフィスが設けられているものである
場合を限定したものである。According to a second aspect of the present invention , in the method of controlling the variable damping device for a vibration control structure according to the first aspect, the variable damping device is provided.
But at least one of said plurality of channels, in which an orifice is provided in series with the switching control valve of the flow path
It is a limited case .
【００１７】請求項１に係る発明の説明で述べたことと
関連するが、開閉制御弁と直列にオリフィスを設けるこ
とで、その流路固有の減衰係数Ｃmid を定めることがで
きる（中間の減衰係数Ｃmid は、４段階以上の切替えの
場合は、異なる複数の減衰係数Ｃmid1, Ｃmid2, ……と
なる）。Although related to what has been described in the description of the invention according to claim 1, by providing an orifice in series with the on-off control valve, the damping coefficient C mid peculiar to the flow passage can be determined (the intermediate damping). The coefficient C mid becomes a plurality of different attenuation coefficients C mid1 , C mid2 , ... In the case of switching in four steps or more).
【００１８】請求項３は、請求項２に係る制震構造物用
可変減衰装置の制御方法において、前記可変減衰装置
が、前記オリフィスと直列に設けられている開閉制御弁
が断電時に開状態となるようにしてあるものである場合
を限定したものである。According to a third aspect of the present invention , in the method of controlling the variable damping device for a vibration control structure according to the second aspect , the variable damping device is provided.
But in which off control valve provided in said orifice in series was limited <br/> case in which are set to be opened when deenergized.
【００１９】停電などによる断電時あるいは誤作動回避
のために装置を停止させた場合等に、並列に設けられた
２つの流路のうち、オリフィスのない流路について開閉
制御弁が閉、オリフィスのある流路について開閉制御弁
が開となるようにすれば、オリフィスによる絞りに応じ
た減衰係数（中間の減衰係数Ｃmid ）を与える受動型の
油圧ダンパとして機能させることができる。流路が３つ
以上の場合も同様に考えることができる。When power is cut off due to a power failure or when the device is stopped to avoid malfunction, the opening / closing control valve is closed for the flow path without an orifice among the two flow paths provided in parallel. If the open / close control valve is opened for a certain flow path, it can function as a passive hydraulic damper that gives a damping coefficient (intermediate damping coefficient C mid ) according to the restriction by the orifice. The same can be considered when there are three or more channels.
【００２０】このような制震構造物用可変減衰装置は、
例えば構造物の柱梁架構内に耐震要素を介して組み込ま
れる。 A variable damping device for such a vibration control structure is
For example write set via the seismic elements in beam-column rack premises structure or
Be done.
【００２１】可変減衰装置の制御は、装置と別に柱梁架
構側にセンサーを設けて地震等による構造物の応答をも
とに制御することもできるが、上述した特許２９５９５
５４号掲載公報記載の発明のように、装置部のみの情報
で、複数配置した可変減衰装置を個別に制御するように
すれば、装置外部にセンサーや制御コンピュータ、配線
等を必要としないシステムとすることもできる。The control of the variable damping device can also be controlled by providing a sensor separately from Column rack構側a device based on the response of the structure due to an earthquake or the like, patents mentioned above 29595
As in the invention described in Japanese Patent Publication No. 54, if a plurality of arranged variable attenuators are individually controlled by the information of only the device section, a system that does not require a sensor, a control computer, wiring or the like outside the device is obtained. You can also do it.
【００２２】[0022]
【発明の実施の形態】図１は、本願発明に用いる可変減
衰装置の一実施形態における基本構造（図１(a) ）とそ
の設置形態（図１(b) ）の一例を示したものである。こ
の可変減衰装置は、装置の減衰係数を最大値Ｃmax と最
小値Ｃmin 、およびその中間Ｃmid の３段階に切り替え
られるようにしたものであり、これにより後述するよう
に変位応答低減効果を維持しながら、加速度応答を大幅
に低減することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of the basic structure (FIG. 1 (a)) and its installation form (FIG. 1 (b)) in an embodiment of the variable damping device used in the present invention. is there. This variable damping device is designed so that the damping coefficient of the device can be switched among three stages of a maximum value C max and a minimum value C min , and an intermediate value C mid thereof, whereby a displacement response reducing effect is obtained as described later. The acceleration response can be significantly reduced while maintaining.
【００２３】図１(a) に示される可変減衰装置１の具体
的な構成としては、シリンダ２と、シリンダ２内で往復
動するピストン３と、このピストン３の両側に設けられ
た油圧室４を有し、この両油圧室をつなぐ形で２つの流
路５ａ，５ｂが並列に設けられている。As a concrete configuration of the variable damping device 1 shown in FIG. 1 (a), a cylinder 2, a piston 3 which reciprocates in the cylinder 2, and hydraulic chambers 4 provided on both sides of the piston 3 are shown. And two flow paths 5a and 5b are provided in parallel so as to connect the two hydraulic chambers.
【００２４】回路Ａを構成する図中上側の流路５ａに
は、全開と全閉の切替えが可能な開閉制御弁６ａ（電磁
切替弁等）が設けられている。一方、回路Ｂを構成する
下側の流路５ｂには、同様に全開と全閉の切替えが可能
な開閉制御弁６ｂが設けられ、さらにこの開閉制御弁６
ｂ（電磁切替弁等）と直列にオリフィス８が設けられて
いる。An open / close control valve 6a (electromagnetic switching valve or the like) capable of switching between fully open and fully closed is provided in the flow path 5a in the upper side of the figure which constitutes the circuit A. On the other hand, the lower flow path 5b forming the circuit B is similarly provided with an open / close control valve 6b that can be switched between fully open and fully closed.
An orifice 8 is provided in series with b (an electromagnetic switching valve or the like).
【００２５】回路Ａ，Ｂとも閉とすることで、最大の減
衰係数Ｃmax が実現され、回路Ａを閉にしたまま回路Ｂ
を開とすることによりオリフィス８で規定される中間の
減衰係数Ｃmid が実現され、回路Ｂの状態に関わらず回
路Ａを開とすることにより最小の減衰係数Ｃmin が実現
される。The maximum damping coefficient C max is realized by closing both the circuits A and B, and the circuit B is kept closed.
Is opened to realize an intermediate damping coefficient C mid defined by the orifice 8, and regardless of the state of the circuit B, the minimum damping coefficient C min is realized by opening the circuit A.
【００２６】回路Ｂのオリフィス８のオリフィス特性
は、目標とする除荷の速さにより決定されるが、この値
は単純に装置をパッシブダンパとして設定するときの減
衰特性に近い形で設定することができる。The orifice characteristic of the orifice 8 of the circuit B is determined by the target unloading speed, but this value is simply set in a form close to the damping characteristic when the device is set as a passive damper. You can
【００２７】その場合、回路Ａは断電時を閉、電力供給
時を開となるように設定し、回路Ｂは断電時を開、電力
供給時を閉となるように設定しておけば、停電時には回
路Ｂのみ有効となり、減衰係数Ｃmid のパッシブダンパ
として機能させることができる。In this case, the circuit A is set to be closed when the power is cut off and the power supply is set to open when the power is supplied, and the circuit B is set to be open when the power is cut and closed when the power is supplied. At the time of a power failure, only the circuit B is valid and can function as a passive damper having a damping coefficient C mid .
【００２８】すなわち、３段階切替え可変減衰装置は、
そのまま断電時フェールセーフ機能付きダンパとしても
機能させることができる。なお、パッシブダンパとして
機能させるためには、適切な減衰特性を発揮することが
必要であり、図１(a) ではこれを固定のオリフィス８に
より実現しているが、オリフィスの代わりに調圧弁等を
用いることも可能である。That is, the three-stage switching variable damping device is
It can also function as a damper with a fail-safe function when the power is cut. In order to function as a passive damper, it is necessary to exhibit appropriate damping characteristics, and this is realized by the fixed orifice 8 in Fig. 1 (a), but instead of the orifice, a pressure regulating valve, etc. It is also possible to use.
【００２９】図２は、図１の可変減衰装置を用いた制御
例について、可変減衰装置の荷重Ｆと層間変形ｘの関係
を一定振幅δの場合について示したものである。FIG. 2 shows the relationship between the load F of the variable damping device and the interlayer deformation x in the case of a constant amplitude δ in the control example using the variable damping device of FIG.
【００３０】具体的には、応答変位がから振幅最大点
に至る前ので、減衰係数をＣma x からＣmid に切り
替える。これにより、装置部に発生していた力はゆっく
りと抜けて行くので、急激な除荷による衝撃加速度は生
じない。[0030] Specifically, since before reaching the response displacement amplitude maximum point, switch the damping coefficient from C ma x to C mid. As a result, the force generated in the device section slowly escapes, so that shock acceleration due to sudden unloading does not occur.
【００３１】Ｃmid が完璧に調整されていれば、ちょう
ど振幅最大点で荷重０になるが、実際のランダムな地
震応答実施形態には必ずしもそうならないため、Ｃmid
はやや大きめの値に設定しておき、振幅最大点で減衰
係数をＣmid からＣmin に切り替える。これより、残っ
ていた荷重が完全に吸収され、エネルギー吸収効率を高
く維持することができる。If C mid is perfectly adjusted, the load becomes exactly 0 at the maximum amplitude point, but this is not necessarily the case in an actual random seismic response embodiment, so C mid
The value is set to a slightly large value, and the attenuation coefficient is switched from C mid to C min at the maximum amplitude point. As a result, the remaining load is completely absorbed, and the energy absorption efficiency can be maintained high.
【００３２】図３は、本願発明で用いられる可変減衰装
置１を組み込んだ制震構造物の概要を示したものであ
り、上述のように構成される可変減衰装置１をブレース
１３を介して柱梁架構内に組み込み、前述した制御方法
により可変減衰装置１を制御することで、建物に制震機
能を与え、かつ荷重の急激な除荷による瞬間的な大きな
加速度の発生を防止し、小地震や風などによる振動につ
いても快適な居住性を維持することができる。[0032] FIG. 3 is an overview of the seismic control structure incorporating variable damping device 1 for use in the present invention, through the brace 13 constituted the variable damping device 1 as described above pillars only write set to the beam rack premises, control method described above
By controlling the variable damping device 1 by using , the building is provided with a vibration control function, and it is possible to prevent the occurrence of momentary large acceleration due to sudden unloading of the load, and to make the living comfortable even with vibration due to a small earthquake or wind. Can maintain sex.
【００３３】[0033]
【発明の効果】本願発明の可変減衰装置の制御方法は、
開閉制御弁の開度の切り換えを２段階で行う簡単な構造
を維持しつつ、並列する複数の流路を利用して減衰係数
を３段階または多段階に制御できる可変減衰装置の特性
を利用したものであり、制震構造物に適用した場合にお
いて、可変減衰装置に対し本願発明の方法による制御を
行うことで、減衰係数の切替えの際に瞬間的に発生する
大きな加速度を回避することができる。 The control method of the variable damping device of the present invention is as follows.
Characteristics of a variable damping device that can control the damping coefficient in three stages or multiple stages by using a plurality of parallel flow paths while maintaining a simple structure in which the opening and closing of the opening / closing control valve is switched in two stages
When applied to a seismic control structure, the variable damping device can be controlled by the method of the present invention.
By doing so, it is possible to avoid a large acceleration that occurs momentarily when switching the damping coefficient.
【００３４】すなわち、簡単な構造を維持しながら、加
速度と変位の両者の応答低減を可能とするものであり、
それによって制震時における快適な居住性を維持するこ
とができる。That is, it is possible to reduce the response of both acceleration and displacement while maintaining a simple structure.
As a result, it is possible to maintain comfortable habitability during seismic control.
【図１】 本願発明の制御方法の制御対象となる可変減
衰装置の一実施形態を示したもので、(a) は可変減衰装
置の基本構造を示す概要図、(b) はその設置形態の一例
を示す説明図である。FIG. 1 is a variable reduction to be controlled by a control method according to the present invention.
Show one embodiment of Attenuation device is (a) is a schematic view showing a basic structure of a variable damping device, (b) is an explanatory view showing an example of the installation mode.
【図２】 本願発明の制御方法による制御例での可変減
衰装置の荷重Ｆと層間変形ｘの関係を一定振幅の場合に
ついて示したグラフである。FIG. 2 is a graph showing the relationship between the load F of the variable damping device and the interlayer deformation x in a control example according to the control method of the present invention in the case of a constant amplitude.
【図３】 本願発明の適用対象となる制震構造物を示す
概要図である。FIG. 3 is a schematic diagram showing a vibration control structure to which the present invention is applied .
【図４】 従来例を示したもので、(a) は従来の２段切
替えの可変減衰装置の基本構造を示す概要図、(b) はそ
の設置形態の一例を示す説明図である。FIG. 4 shows a conventional example, (a) is a schematic diagram showing a basic structure of a conventional two-stage switching variable damping device, and (b) is an explanatory diagram showing one example of its installation form.
【図５】 図４(b) に対応する力学モデルの図である。5 is a diagram of a dynamic model corresponding to FIG. 4 (b).
【図６】 従来の２段切替えの可変減衰装置による制御
例での可変減衰装置の荷重Ｆと層間変形ｘの関係を一定
振幅の場合について示したグラフである。FIG. 6 is a graph showing the relationship between the load F and the interlayer deformation x of the variable damping device in the control example of the conventional two-stage switching variable damping device in the case of a constant amplitude.
１…可変減衰装置、２…シリンダ、３…ピストン、４…
油圧室、５，５ａ，５ｂ…流路、６，６ａ，６ｂ…開閉
制御弁、７…制御回路、８…オリフィス、１０…従来の
可変減衰装置、１１…柱、１２…梁、１３…ブレース1 ... Variable damping device, 2 ... Cylinder, 3 ... Piston, 4 ...
Hydraulic chambers, 5, 5a, 5b ... Flow paths, 6, 6a, 6b ... Open / close control valves, 7 ... Control circuits, 8 ... Orifices, 10 ... Conventional variable damping device, 11 ... Pillars, 12 ... Beams, 13 ... Braces
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E04H 9/02 311 E04H 9/02 301 F16F 15/00 - 15/36 Front page continuation (58) Fields surveyed (Int.Cl. 7 , DB name) E04H 9/02 311 E04H 9/02 301 F16F 15/00-15/36
Claims (3)
るピストンと、前記ピストンの両側に設けられた油圧室
と、前記両油圧室をつなぐ複数の流路に設けられた開閉
制御弁とを備え、前記複数の流路に設けられた開閉制御
弁の開閉を制御することで、装置の減衰係数を３段階以
上の多段階に切り替えられるようにした可変減衰装置の
制御方法であって、振動外力に対する応答変位につい
て、振動サイクルにおける応答変位が振幅最大点に至る
手前で減衰係数を最大の減衰係数Ｃ max から中間の減衰
係数Ｃ mid に切り替えることで可変減衰装置に発生して
いた力の急激な除荷を避け、振幅最大点で減衰係数を中
間の減衰係数Ｃ mid から最小の減衰係数Ｃ min に切り替
えることで残っていた荷重を完全に吸収して再び減衰係
数を最大の減衰係数Ｃ max に切り替える制御を繰り返す
ことを特徴とする制震構造物用可変減衰装置の制御方
法。 1. A cylinder, a piston reciprocating in the cylinder, hydraulic chambers provided on both sides of the piston, and an opening / closing control valve provided in a plurality of flow paths connecting the hydraulic chambers. for example, pre-Symbol by controlling the opening and closing of the provided opening and closing control valve to a plurality of channels, and to switch the damping coefficient of the device in multiple stages of three or more stages of variable damping device
The control method is
The response displacement in the vibration cycle reaches the maximum amplitude point
Attenuating the damping coefficient in the foreground from the maximum damping coefficient C max to the middle damping
By switching to the coefficient C mid
Avoid sudden unloading of the applied force and set the damping coefficient at the maximum amplitude point.
It switched from the attenuation coefficient C mid between the minimum damping coefficient C min
By absorbing the remaining load completely, the damping
The control for switching the number to the maximum damping coefficient C max is repeated.
Control method of variable damping device for seismic control structure characterized by
Law.
少なくとも１つに、該流路の開閉制御弁と直列にオリフ
ィスが設けられているものである請求項１記載の制震構
造物用可変減衰装置の制御方法。Wherein said variable damping device, wherein at least one of the plurality of flow paths, seismic control structure according to claim 1, wherein in which off control valve and the orifice in series flow path is provided Method for controlling variable damping device for automobile.
直列に設けられている開閉制御弁が断電時に開状態とな
るようにしたものである請求項２記載の制震構造物用可
変減衰装置の制御方法。Wherein the variable attenuation device, the orifice and Vibration Control structure for variable damping apparatus off control valve provided in series claim 2, wherein is obtained by such an open state when deenergized Control method .
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|---|---|---|---|
| JP2000194844A JP3397199B2 (en) | 2000-06-28 | 2000-06-28 | Control method of variable damping device for damping structure |
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|---|---|---|---|
| JP2000194844A JP3397199B2 (en) | 2000-06-28 | 2000-06-28 | Control method of variable damping device for damping structure |
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| JP3397199B2 true JP3397199B2 (en) | 2003-04-14 |
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|---|---|---|---|---|
| JP3939609B2 (en) * | 2002-07-22 | 2007-07-04 | 日立機材株式会社 | Hydraulic damper |
| JP4009156B2 (en) * | 2002-07-23 | 2007-11-14 | 日立機材株式会社 | Hydraulic damper |
| JP2005155278A (en) * | 2003-11-28 | 2005-06-16 | Kayaba Ind Co Ltd | Unloading control valve in seismic response control device |
| JP5839820B2 (en) * | 2011-04-13 | 2016-01-06 | トヨタホーム株式会社 | Vibration control system |
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