JPH0518992B2 - - Google Patents
Info
- Publication number
- JPH0518992B2 JPH0518992B2 JP10294288A JP10294288A JPH0518992B2 JP H0518992 B2 JPH0518992 B2 JP H0518992B2 JP 10294288 A JP10294288 A JP 10294288A JP 10294288 A JP10294288 A JP 10294288A JP H0518992 B2 JPH0518992 B2 JP H0518992B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- building
- electric motor
- pressure
- accumulator
- 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
- 238000013016 damping Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は地震や風等の外力により建物に生じ
る振動を低減させるための能動式制震装置に使用
される油圧装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hydraulic system used in an active vibration damping system for reducing vibrations caused in a building by external forces such as earthquakes and wind.
出願人は特開昭62−268478号および特開昭63−
78974号公報等において、建物上部等に付加質量
とアクチユエーターからなる制震装置を設け、建
物が地震あるいは風等の外力を受けたとき、アク
チユエーターの作動を制御することにより、付加
質量としての重りに反力をとつて、建物本体にそ
の振動を制御するような力を加える能動式制震装
置を開示している。
The applicant is JP-A-62-268478 and JP-A-63-
In Publication No. 78974, etc., a vibration damping device consisting of an additional mass and an actuator is installed on the top of a building, etc., and when the building receives an external force such as an earthquake or wind, the additional mass is reduced by controlling the operation of the actuator. This disclosure discloses an active vibration control device that applies a force to the building body to control vibration by taking a reaction force from a weight.
第２図は能動式制震装置の概要を示したもの
で、例えば建物１の上部に建物１と実質的に切り
離した形で、付加質量としての重り２を設け、重
り２と建物１の一部との間にアクチユエーター３
としての油圧シリンダーを介在させてある。地震
や風等が作用し、建物１に振動が生じると、その
振動を建物１に設けたセンサー４ｂが感知し、信
号を制御回路に送り、建物１の振動に応じた出力
信号をアクチユエーター３に接続したサーボ弁に
送り、アクチユエーター３の制御を行う。なお、
アクチユエーター３側にもセンサー４ａを設ける
ことにより、アクチユエーター３の動きをフイー
ドバツクして制御することができる。また、以上
は閉ループでの制御であるが、広域、狭域の地震
計等から送られてくる地震波の解析により、建物
の応答を予測し、制御を行う開ループの制御と組
み合わせることもできる。 Figure 2 shows an outline of an active vibration damping system. For example, a weight 2 is provided as an additional mass on the top of a building 1, substantially separate from the building 1, and the weight 2 and the building 1 are combined. actuator 3 between
A hydraulic cylinder is interposed. When vibrations occur in the building 1 due to earthquakes, wind, etc., the sensor 4b installed in the building 1 senses the vibrations, sends a signal to the control circuit, and outputs a signal corresponding to the vibration of the building 1 to the actuator. 3 to control the actuator 3. In addition,
By providing the sensor 4a also on the actuator 3 side, the movement of the actuator 3 can be controlled by feedback. Additionally, although the above is closed-loop control, it can also be combined with open-loop control, which predicts and controls the building's response by analyzing seismic waves sent from wide-area and narrow-area seismometers.
ところで、地震はいつくるか分からず、起きた
ときには瞬時に装置が作動しなければならない。
しかし油圧装置は起動してから安定な稼働状態に
なるまで時間がかかるため、常に装置を起動して
地震発生時に備えウオーミングアツプする必要が
ある。そのため、電気代等のランニングコストが
非常にかかるうえ装置の寿命が短かくなる。
By the way, we do not know if an earthquake will occur, so when an earthquake occurs, the equipment must be activated instantly.
However, since it takes time for hydraulic equipment to reach a stable operating state after startup, it is necessary to constantly start up the equipment and warm it up in case an earthquake occurs. Therefore, running costs such as electricity costs are very high, and the life of the device is shortened.
また、強風時には常に大風が吹いているわけで
はないので、常に大容量の電動機を作動させてお
く必要はない。しかし、電動機は一度電気を切る
と慣性力で回転を続け、この間は逆起電力が生じ
ているため、再起動をさせると寿命を短くするこ
とになり、頻繁にオン、オフを繰り返すことはで
きない。 Furthermore, since strong winds do not always blow, there is no need to constantly operate a large-capacity electric motor. However, once the electric motor is turned off, it continues to rotate due to inertia, and during this time a back electromotive force is generated, so restarting the motor will shorten its life, and it cannot be turned on and off frequently. .
この発明は上述のような能動式制震装置におけ
る問題点を解決することを目的としたもので、イ
ニシヤルコスト、ランニングコストとも低く、瞬
時に起動し、しかも比較的長時間連続運転可能な
油圧装置を提供することを目的としたものであ
る。 The purpose of this invention is to solve the problems with active vibration damping systems as described above. The purpose is to provide equipment.
この発明は能動式制震装置における油圧源とし
て、小型電動機に接続された小型油圧ポンプと、
大型電動機に接続され大型油圧ポンプと大容量の
アキユムレータを並列的に設け、常時は小型電動
機のみを稼働させて小型油圧ポンプを油圧源と
し、かつアキユムレーターに油圧を貯え、常時ウ
オームアツプのできた状態としておき、地震発生
初期に必要な油圧は油圧ポンプと並列に設けた前
記アキユムレーターより供給し、その間に大型電
動機を始動し、大型油圧ポンプを作動させ、地震
後期に必要な油圧を供給し、経済的かつ安定的な
油圧源を構成したものである。
This invention uses a small hydraulic pump connected to a small electric motor as a hydraulic power source in an active vibration damping system.
A large hydraulic pump connected to a large electric motor and a large capacity accumulator are installed in parallel, and only the small electric motor is operated at all times, the small hydraulic pump is used as the hydraulic pressure source, and hydraulic pressure is stored in the accumulator, so that it is always warmed up. The hydraulic pressure required in the early stages of an earthquake is supplied from the above-mentioned accumulator installed in parallel with the hydraulic pump, and during that time the large electric motor is started and the large hydraulic pump is operated to supply the necessary hydraulic pressure in the later stages of the earthquake, making it economical. It also constitutes a stable hydraulic power source.
地震が発生すると大型電動機は能動式制震装置
の制御回路より送られてくる電気信号により起動
し、大型油圧ポンプを稼働させ、アキユムレータ
ーが地震発生初期に必要な油圧を供給している間
にウオームアツプし、アキユムレーターの圧力が
低下しはじめる時には、大型油圧ポンプより油圧
が供給されることになる。 When an earthquake occurs, the large electric motor is activated by an electrical signal sent from the control circuit of the active damping system, operates the large hydraulic pump, and warms up while the accumulator supplies the necessary hydraulic pressure at the beginning of the earthquake. When the pressure in the accumulator starts to drop, hydraulic pressure is supplied from a large hydraulic pump.
さらに、強風時には大型電動機が制御回路によ
り送られてくる電気信号により起動し、大型油圧
ポンプを稼働させ、主としてこの大型油圧ポンプ
を油圧源とし、装置を稼働させる。大型ポンプに
はアキユムレーターの油圧低下を感知するプレツ
シヤースイツチ等の圧力感知手段により作動する
圧力調整弁等を通じて必要なときだけ圧力負荷が
加わるようにし、電動機の消費電力は無駄なく使
用されることになる。 Further, in the event of strong winds, the large electric motor is activated by an electric signal sent by the control circuit to operate the large hydraulic pump, and the large hydraulic pump is primarily used as the hydraulic power source to operate the device. Pressure load is applied to large pumps only when necessary through pressure regulating valves operated by pressure sensing means such as pressure switches that detect the drop in oil pressure in the accumulator, and the electric power consumed by the motor is used without wasting it. become.
次に、具体的な実施例について説明する。 Next, specific examples will be described.
第１図はこの発明の油圧装置を組み込んだ能動
式制震装置をブロツク図として示したもので、4t
の重りを使用し、400tの建物の制震を目的とした
ものである。 Figure 1 is a block diagram of an active damping system incorporating the hydraulic system of this invention.
The purpose is to dampen the vibrations of a 400-ton building using a weight of
この例では、電源として200Vの３相交流電源
を用い、1.5KWの小型電動機を常時稼働させる。
これにより、サーボ弁は常に制御状態となり、２
〜３／分の油を継続的に流し、常時ウオームア
ツプができていることになる。 In this example, a 200V three-phase AC power source is used as the power source, and a 1.5KW small electric motor is constantly operated.
As a result, the servo valve is always in a controlled state, and 2
By continuously flowing ~3/min of oil, a warm-up is created at all times.
また、1.5KWの小型電動機およびこれに接続
した小型ポンプにより、アキユムレーター（80
）に油圧を貯えており、地震発生の初期に必要
な油はここから供給されるので、立ち上がりの制
御状態も良好となる。さらに、地震発生時に
15KWの大型電動機が起動し、アキユムレーター
の油圧が低下しても、そのときまでには15KWの
大型電動機に接続された大型ポンプからの油がサ
ーボ弁に供給されることになる。 In addition, an accumulator (80
), and the necessary oil is supplied from here in the early stages of an earthquake, so the start-up control conditions are also good. Furthermore, in the event of an earthquake
Even if the 15KW large electric motor starts up and the oil pressure in the accumulator drops, oil from the large pump connected to the 15KW large electric motor will be supplied to the servo valve by that time.
アキユムレーターには圧力感知手段としてのプ
レツシヤースイツチを設け、制御開始による圧力
上昇時には圧力調整弁を調整して、まず大型ポン
プとタンク（図示せず）の間で油を循環させるこ
とにより15KWの大型電動機の負荷を最小限に抑
え、次第に油圧が低下し、所定の圧力まで低下し
た時点でう圧力調整弁を油圧制御回路側に開き、
15KWの大型電動機に接続された大型ポンプより
流れる油の油圧を調整する。これにより、15KW
の大型電動機に加わる負荷が調整され、電動機の
消費電力が節約できる。なお、15KWの大型電動
機は大型ポンプとタンクの間で油を循環させてい
る間は、負荷の小さい空回りの状態で、ウオーム
アツプがなされる。 The accumulator is equipped with a pressure switch as a pressure sensing means, and when the pressure rises due to the start of control, the pressure regulating valve is adjusted and the oil is circulated between the large pump and the tank (not shown). The load on the large electric motor is kept to a minimum, and the hydraulic pressure gradually decreases, and when it reaches a predetermined level, the pressure regulating valve is opened to the hydraulic control circuit side.
Adjusts the hydraulic pressure of oil flowing from a large pump connected to a large 15KW electric motor. This makes 15KW
The load applied to the large electric motor is adjusted, and the power consumption of the electric motor can be saved. Note that while the large 15KW electric motor is circulating oil between the large pump and tank, it is warmed up with a light load and idling.
能動式制震装置による制震は次のようになされ
る（第１図参照）。 Vibration control using an active damping device is performed as follows (see Figure 1).
建物の振動をセンサー２が感知し、制御信号発
生回路へ送られる。制御信号発生回路からはサー
ボ弁および電源へ向けて制御信号が発せられ、油
圧およびサーボ弁の調整作動が開始される。これ
と同時に、大型電動機のスイツチも入る。 The sensor 2 senses the vibration of the building and sends it to the control signal generation circuit. A control signal is issued from the control signal generation circuit to the servo valve and the power source, and the adjustment operation of the hydraulic pressure and the servo valve is started. At the same time, the large electric motor is turned on.
一方、油圧シリンダーの作動により付加質量と
しての重りの動きはセンサー１が感知し、制御信
号発生回路へ送られる。 On the other hand, the movement of the weight as an additional mass due to the operation of the hydraulic cylinder is detected by the sensor 1 and sent to the control signal generation circuit.
制震の原理としては、例えば建物本体の振動に
対し、逆向きの振動を与えるような力を加えるこ
とにより建物の振動を制御することができるが、
その場合制御回路において、摩擦その他の原因に
よる機械遅れ分の位相を調整し、サーボ弁に制御
信号が送られる。また、重りの動きをフイードバ
ツクすることにより誤差の調整等がなされる。 The principle of vibration damping is that, for example, the vibrations of a building can be controlled by applying a force that causes vibrations in the opposite direction to the vibrations of the building itself.
In that case, the control circuit adjusts the phase for mechanical delays due to friction and other causes, and sends a control signal to the servo valve. Furthermore, errors can be adjusted by feeding back the movement of the weight.
振動制御が開始されると、例えば５秒程度で圧
力調整弁が所定の圧力の低下量を感知し、大型電
動機の負荷を調整して油圧制御が継続されること
になる。 When vibration control is started, the pressure regulating valve senses a predetermined amount of decrease in pressure in about 5 seconds, for example, and the load on the large electric motor is adjusted to continue hydraulic control.
この発明では大きな制御力を発生するための油
圧装置と電気制御回路とを組み合わせてあるた
め、建物の振動を効果的に抑制することができ
る。
Since this invention combines a hydraulic system for generating a large control force with an electric control circuit, it is possible to effectively suppress vibrations in the building.
常時稼働させるための小型電動機および小型ポ
ンプと、地震あるいは風に対し制御を行うときだ
け稼働させる大型電動機および大型ポンプとを組
み合わせてあり、常にウオームアツプした状態で
直ちに油圧制御を行うことができ、かつ大型電動
機の立ち上がり時も大きな負荷をかけることなく
制御されるので、消費電力が少なく、ランニング
コストも少なく、かつ装置の寿命も伸び、経済的
な制震が可能となる。 It is a combination of a small electric motor and a small pump that operate constantly, and a large electric motor and large pump that operate only when controlling earthquakes or wind, and can immediately perform hydraulic control while always warmed up. In addition, since the large electric motor is controlled without applying a large load even when it starts up, power consumption is low, running costs are low, and the life of the device is extended, making economical vibration damping possible.
第１図はこの発明を適用した能動式制震装置の
概要を示すブロツク図、第２図は能動式制震装置
の概要を示す説明図である。
１……建物本体、２……重り、３……アクチユ
エーター、４ａ，４ｂ……センサー。
FIG. 1 is a block diagram showing an overview of an active vibration damping device to which the present invention is applied, and FIG. 2 is an explanatory diagram showing an overview of the active vibration damping device. 1... Building body, 2... Weight, 3... Actuator, 4a, 4b... Sensor.
Claims (1)
建物間に介在させた油圧シリンダーと、建物に設
置した振動検知手段と、該振動検知手段により得
られた応答信号に応じ、サーボ弁および油圧源を
制御し、前記油圧シリンダーを作動させるための
制御信号を発生する制御回路とからなる能動式制
震装置に使用される油圧装置であつて、油圧源と
して連続稼働する小型電動機に接続された小型油
圧ポンプと、建物の振動増大により起動する大型
電動機に接続された大型油圧ポンプと、アキユム
レーターとを並列的に設け、前記大型油圧ポンプ
には前記アキユムレーターに取付けた圧力感知手
段により、圧力低減を感知し作動する圧力調整弁
を設けてあることを特徴とする能動式制震装置用
油圧装置。1. A weight that is movable relative to the building, a hydraulic cylinder interposed between the weight and the building, a vibration detection means installed in the building, and a servo valve and hydraulic pressure according to the response signal obtained by the vibration detection means. A hydraulic system used in an active vibration damping system, which is connected to a small electric motor that operates continuously as a hydraulic power source, and a control circuit that generates a control signal to operate the hydraulic cylinder. A small hydraulic pump, a large hydraulic pump connected to a large electric motor activated by increased vibration of the building, and an accumulator are installed in parallel, and the large hydraulic pump is configured to reduce pressure by a pressure sensing means attached to the accumulator. A hydraulic system for an active vibration damping system, characterized in that it is provided with a pressure regulating valve that senses and operates.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10294288A JPH01275868A (en) | 1988-04-26 | 1988-04-26 | Hydraulic system for active type vibration control device |
| US07/343,085 US5022201A (en) | 1988-04-26 | 1989-04-25 | Apparatus for accelerating response time of active mass damper earthquake attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10294288A JPH01275868A (en) | 1988-04-26 | 1988-04-26 | Hydraulic system for active type vibration control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01275868A JPH01275868A (en) | 1989-11-06 |
| JPH0518992B2 true JPH0518992B2 (en) | 1993-03-15 |
Family
ID=14340883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10294288A Granted JPH01275868A (en) | 1988-04-26 | 1988-04-26 | Hydraulic system for active type vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01275868A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH086493B2 (en) * | 1991-05-29 | 1996-01-24 | 鹿島建設株式会社 | Vibration control device for structures |
| JPH086494B2 (en) * | 1991-06-07 | 1996-01-24 | 鹿島建設株式会社 | Vibration control device for structures |
| JP4100095B2 (en) * | 2002-08-27 | 2008-06-11 | 鹿島建設株式会社 | Rolling pendulum, seismic isolation device and damping device using the rolling pendulum |
-
1988
- 1988-04-26 JP JP10294288A patent/JPH01275868A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01275868A (en) | 1989-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5574345A (en) | Power supply circuit for magnetic bearing system | |
| US4857755A (en) | Constant power system and method | |
| JP4800514B2 (en) | Drive control device for hybrid construction machine, hybrid construction machine and drive control program thereof | |
| JP2009013632A (en) | Engine control device for construction machine | |
| JP2004522903A (en) | Feedforward engine control governing system | |
| US5022201A (en) | Apparatus for accelerating response time of active mass damper earthquake attenuator | |
| JP3903596B2 (en) | Vibration energy conversion and supply type bridge damping structure | |
| JPH0518992B2 (en) | ||
| KR101465115B1 (en) | Apparatus for controlling of electric governor in vessel | |
| JP2003027985A (en) | Drive control system for hybrid construction machine, hybrid construction machine, and drive control program for the same | |
| JP2000154803A (en) | Engine lag-down prevention device for hydraulic construction machine | |
| US6510839B1 (en) | Electronic throttle spring torque adaptation system | |
| JPH11182443A (en) | Control unit of variable displacement hydraulic pump | |
| US6378493B1 (en) | Throttle position control system | |
| JPH0374581A (en) | Driving load control device for variable displacement hydraulic pump | |
| KR20160095072A (en) | Apparatus and method for controlling assistant power of hybrid excavator | |
| US11994081B2 (en) | Apparatus for active engine idle control | |
| GB2379998A (en) | Dynamic feed forward positioning control system for an electronic throttle | |
| JP3614475B2 (en) | Vibration control device | |
| JP3703680B2 (en) | Rotational speed control device for engine-driven welding generator | |
| JP4199136B2 (en) | Engine rotation control method in hybrid system | |
| JPH0860705A (en) | Output support device of construction equipment | |
| JPS6032322Y2 (en) | Marine fuel blending equipment | |
| JP2003307252A (en) | Variable mass damper device | |
| CN102263534A (en) | motor bus voltage commutation method |