JPH026290A - Ship - Google Patents

Ship

Info

Publication number
JPH026290A
JPH026290A JP15240188A JP15240188A JPH026290A JP H026290 A JPH026290 A JP H026290A JP 15240188 A JP15240188 A JP 15240188A JP 15240188 A JP15240188 A JP 15240188A JP H026290 A JPH026290 A JP H026290A
Authority
JP
Japan
Prior art keywords
ship
hull
cylindrical body
pitching
force
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.)
Pending
Application number
JP15240188A
Other languages
Japanese (ja)
Inventor
Hironobu Nakajima
中島 博信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP15240188A priority Critical patent/JPH026290A/en
Publication of JPH026290A publication Critical patent/JPH026290A/en
Pending legal-status Critical Current

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  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Toys (AREA)

Abstract

PURPOSE:To reduce the pitching and rolling of a hull by providing a stabilizer formed with cylindrical bodies which rotate on their axes on both side portions of a ship bottom. CONSTITUTION:Cylindrical bodies 3 which rotate in water to generate a force for controlling the posture of a hull 1 by a Magnus effect as a stabilizer are provided extending to obliquely lower portions on both side portions of the ship bottom 2 of the hull 1. The cylindrical body 3 is driven by an electric motor, etc. An end plate 8 having a slightly larger diameter than that of the cylindrical body 3 is integrally installed on the front end portion thereof to prevent the lowering of the efficiency caused by the generation of eddies on the end portions of the cylindrical bodies.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、船底の両側部に設けられるスタビライザの構
造を改良した船舶に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ship in which the structure of stabilizers provided on both sides of the bottom of the ship is improved.

[従来の技術] 船体のローリングやピッチング等を押さえて安定な航行
を可能とするために、船底の両側部にスタビライザを設
けた船舶は一般に知られている。
[Prior Art] Ships are generally known in which stabilizers are provided on both sides of the bottom of the ship in order to suppress rolling, pitching, etc. of the ship's hull and enable stable navigation.

このスタビライザは、第3図、第4図に示すように船底
2の両側部に斜め下方に延出して取付けられたフィン1
0からなり、船体1の推進に伴う流体の流れ方向に対す
る同フィン10の迎角を変えることにより船体1のロー
リング等を押さえることができるようになっている。
As shown in FIGS. 3 and 4, this stabilizer consists of fins 1 that are attached to both sides of the bottom 2 of the ship and extend diagonally downward.
By changing the angle of attack of the fins 10 with respect to the direction of fluid flow accompanying the propulsion of the hull 1, rolling of the hull 1 can be suppressed.

[発明が解決しようとする課題] しかしながら、このようなフィンスタビライザにあって
は、ピッチングにより船体の姿勢が変化すると、フィン
の迎角も変わってしまい、船体の姿勢制御が難しいとい
う問題がある。また、ピッチングの周期が速くなると、
フィンの翼角の操作が追従しきれなくなり、しかも油圧
切替弁により翼角の操作を激しく繰返すと、切替弁が損
傷するおそれがあった。
[Problems to be Solved by the Invention] However, with such a fin stabilizer, there is a problem in that when the attitude of the ship changes due to pitching, the angle of attack of the fin also changes, making it difficult to control the attitude of the ship. Also, as the pitching cycle becomes faster,
If the blade angle of the fins could no longer be controlled and the hydraulic switching valve was repeatedly operated violently, there was a risk that the switching valve would be damaged.

そこで、本発明の目的は上記課題を解決し、フィンスタ
ビライザと異なり船体の姿勢制御が容易であり、ピッチ
ングの周期が速くなったとしても容易に追従操作するこ
とができる船舶を提供することである。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and provide a ship that can easily control the attitude of the ship's hull unlike a fin stabilizer, and can easily perform follow-up operations even if the pitching cycle becomes faster. .

[課題を解決するための手段] 上記目的を達成するために本発明は、船底の両側部にス
タビライザを設けた船舶において、上記スタビライザを
それぞれの軸回りに回転する円筒体によって構成したも
のである。
[Means for Solving the Problems] In order to achieve the above object, the present invention provides a ship in which stabilizers are provided on both sides of the bottom of the ship, in which the stabilizers are constituted by cylindrical bodies that rotate around their respective axes. .

[作用] 円ftJ#を回転させながら船舶を推進させると、円筒
体にはその回転方向、回転数および船体の速度に応じて
マグナス効果により上方または下方の力が発生する。
[Operation] When the ship is propelled while rotating the circle ftJ#, an upward or downward force is generated in the cylindrical body due to the Magnus effect depending on the direction of rotation, the number of revolutions, and the speed of the ship.

この力は船体の推進に伴う流体の流れに対して直角方向
に生じ、しかも流れの速度(船舶の速度)と円筒体の回
転数によって力の大きさが定まるため、船体の姿勢が変
化したとしても、フィンスタビライザと異なり力の方向
および大きさが変化するようなことはなく、船体の姿勢
制御が容易である。
This force is generated in a direction perpendicular to the fluid flow accompanying the propulsion of the ship, and the magnitude of the force is determined by the speed of the flow (speed of the ship) and the rotational speed of the cylindrical body, so it is assumed that the attitude of the ship changes. However, unlike fin stabilizers, the direction and magnitude of the force do not change, making it easy to control the attitude of the ship.

また、高速航行の際に予想される周期の速いピッチング
に対しては、円筒体の回転数を制御するだけで良いので
、容易に追従操作することが、でき、フィンスタビライ
ザのように切替弁が損傷するようなことはない。
In addition, since it is only necessary to control the rotational speed of the cylindrical body in response to pitching with a fast period that is expected during high-speed cruising, it is possible to easily follow up the pitching. It will not cause any damage.

[実施例] 以下、本発明の一実施例を添付図面に基づいて詳述する
[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

第1図、第2図において、1は船舶の船体で、その船底
2の両側部にはスタビライザとして水中で回転してマグ
ナス効果により船体1の姿勢を制御する力を発生させる
円筒体3が斜め下方に延出した状態に設けられている。
In Figures 1 and 2, 1 is the hull of a ship, and on both sides of the bottom 2 there are diagonal cylindrical bodies 3 that act as stabilizers and rotate underwater to generate a force to control the attitude of the hull 1 due to the Magnus effect. It is provided so as to extend downward.

円筒体3を回転駆動するなめに、船体1内の底部には油
圧または電動式のモータ、減速機等からなる回転駆動装
置6が設けられ、これより船底2を貫通して斜め下方に
延出された回転11[17には円筒体3の7!:端軸心
部が固定されている。また、円筒体3の先端部にはその
直径よりも若干大きい直径のエンドグレート8が一体的
に取付けられ、円筒端部のうず発生による効率の低下を
防止している。
In order to rotationally drive the cylindrical body 3, a rotary drive device 6 consisting of a hydraulic or electric motor, a speed reducer, etc. is provided at the bottom of the hull 1, and extends diagonally downward through the bottom 2. The rotated rotation 11[17 is 7 of the cylinder 3! : The end shaft center is fixed. Further, an end grating 8 having a diameter slightly larger than that of the cylindrical body 3 is integrally attached to the distal end of the cylindrical body 3 to prevent a decrease in efficiency due to eddying at the cylindrical end.

円筒体3は船体1の推進による流体の流れRに対して第
1図の矢印で示すように反時計方向LAに回転駆動され
ることにより、マグナス効果により円筒体3には流体の
流れRに対して直角上方向の力FAが発生し、時計方向
LBに回転駆動されることにより流体の流れRに対して
直角下方向の力FBfJ’発生するようになっている。
The cylindrical body 3 is rotationally driven in the counterclockwise direction LA as shown by the arrow in FIG. 1 in response to the fluid flow R caused by the propulsion of the hull 1. On the other hand, a force FA in the upward direction at right angles is generated, and by being rotationally driven in the clockwise direction LB, a force FBfJ' in the downward direction at right angles to the fluid flow R is generated.

そして、両側の円筒体3の回転方向、回転数を制御する
ことにより船体1のローリングやピッチングを押さえる
ことができるようになる。
By controlling the rotation direction and rotation speed of the cylindrical bodies 3 on both sides, rolling and pitching of the hull 1 can be suppressed.

次に実施例の作用を述べる。Next, the operation of the embodiment will be described.

船舶の航行中に船体1のローリングやピッチングを起こ
した場合には、これらを押さえるべく両側の円筒体3を
回転駆動装置6によりそれぞれ回転駆動する。
If rolling or pitching of the hull 1 occurs during navigation of the ship, the cylindrical bodies 3 on both sides are rotationally driven by the rotary drive device 6 in order to suppress this.

円筒体3は船体1の推進による流体の流れRに対して第
1図の矢印で示すように反時計方向LAに回転駆動され
ることにより、マグナス効果により円筒#3には流体の
流れRに対して直角上方向の力FAが発生し、時計方向
LBに回転駆動されることにより流体の流れRに対して
直角下方向の力FBが発生するようになっている。そし
て、両側の円筒体3の回転方向、回転数を制御すること
により船体1のローリングやピッチングを押さえること
ができるようになる。
The cylinder body 3 is rotationally driven in the counterclockwise direction LA as shown by the arrow in FIG. On the other hand, a force FA in a right angle upward direction is generated, and a force FB in a right angle downward direction is generated with respect to the fluid flow R by being rotationally driven in a clockwise direction LB. By controlling the rotation direction and rotation speed of the cylindrical bodies 3 on both sides, rolling and pitching of the hull 1 can be suppressed.

この力FA、FBは常に流体の流れRに対して直角方向
に生じ、しかも流れの速度(船舶の速度)と円筒体3の
回転数によって力の大きさが定まるため、ピッチングに
より船体1の姿勢が変化しなとしても、フィンスタビラ
イザと異なり力FA、F[3の方向および大きさが変化
するようなことはなく、従ってピッチングに対する船体
2の姿勢制御が容易である。また、フィンの翼角を変え
て力を変えるのではなく、円筒体3の回転数で力を変化
させるので、応答性が非常に良い。また、高速航行の際
に予想される周期の速いピッチングに対しては、円筒体
3の回転方向を変えないで回転数のみを制御するだけで
良いので、容易に追従操作することができ、しかもフィ
ンスタビライザのように切替弁が損傷するようなことは
ない。
These forces FA and FB always occur in a direction perpendicular to the fluid flow R, and the magnitude of the force is determined by the speed of the flow (speed of the ship) and the rotational speed of the cylindrical body 3, so pitching causes the attitude of the ship 1. Even if they do not change, unlike the fin stabilizer, the direction and magnitude of the forces FA and F[3 do not change, and therefore the attitude of the hull 2 against pitching can be easily controlled. Furthermore, the force is not changed by changing the blade angle of the fin, but by changing the rotational speed of the cylindrical body 3, so the response is very good. In addition, in response to pitching with a fast period that is expected during high-speed navigation, it is only necessary to control the rotation speed without changing the rotation direction of the cylindrical body 3, so it is possible to easily follow the pitching. Unlike the fin stabilizer, the switching valve will not be damaged.

特に、両側の円筒体3の回転方向、回転数を制御するこ
とにより船体1のローリングやピッチングを押さえるこ
とができ、航行の安定性、快適性が向上する。
In particular, by controlling the rotation direction and rotation speed of the cylindrical bodies 3 on both sides, rolling and pitching of the hull 1 can be suppressed, improving navigation stability and comfort.

なお、円筒体3の径、長さ、回転数および材質は船舶の
大きさ、速度に応じて決定される。また、円筒体3の表
面は滑らかなままでも良いが、必要に応じて小さな球状
等の凹部(デインプル)を多数設けるようにしても良い
Note that the diameter, length, rotation speed, and material of the cylindrical body 3 are determined depending on the size and speed of the ship. Further, the surface of the cylindrical body 3 may remain smooth, but may be provided with a large number of small spherical recesses (dimples) as necessary.

前記実施例では円筒体3を船底2の両側部に斜め下方に
傾斜させて配置した例を示したが、船底2の両側部に水
平に配置するようにしても良い。
In the embodiment described above, the cylindrical body 3 is arranged on both sides of the ship's bottom 2 so as to be inclined diagonally downward, but it may be arranged horizontally on both sides of the ship's bottom 2.

また、円筒体3によって発生する力を調整するなめに、
円筒体3を船体1の内部からそれぞれの軸方向に移動自
在に構成し、その船底2からの突出長さを変えるように
しても良い。この場合、円筒体3の不要時にこれを船体
1の内部に形成した収納室内に引き込むようにしても良
く、円1!?i体3を収納室内に引き込んだなら、その
収納室の開口部を円筒体3のエンドプレート8により閉
塞するようにしても良い。
Also, in order to adjust the force generated by the cylindrical body 3,
The cylindrical body 3 may be configured to be movable in each axial direction from inside the hull 1, and the length of its protrusion from the bottom 2 may be changed. In this case, when the cylindrical body 3 is not needed, it may be drawn into a storage chamber formed inside the hull 1. ? Once the i-body 3 is drawn into the storage chamber, the opening of the storage chamber may be closed by the end plate 8 of the cylindrical body 3.

[発明の効果] 以上要するに本発明によれば、船底の両開部に設けられ
るスタビライザをそれぞれの軸回りに回転する円筒体に
よって構成したので、フィンスタビライザと異なりロー
リングやピッチングに対して船体の姿勢制御が容易であ
り、ピッチングの周期か速くなったとしても容易に追従
操作することができ、航行の安定性、快適性が向上する
[Effects of the Invention] In short, according to the present invention, the stabilizers provided at both openings of the bottom of the ship are constructed of cylindrical bodies that rotate around their respective axes, so unlike fin stabilizers, the attitude of the ship against rolling and pitching is improved. It is easy to control, and even if the pitching period becomes faster, it can be easily followed, improving navigation stability and comfort.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す船舶の側面図、第2図
は第1図のA−A線断面図、第3図は従来の船舶を示す
側面図、第4図は第3図の正面図である。 図中、1は船体、2は船底、3は円筒体である。
FIG. 1 is a side view of a ship showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a side view of a conventional ship, and FIG. FIG. In the figure, 1 is a hull, 2 is a bottom, and 3 is a cylindrical body.

Claims (1)

【特許請求の範囲】[Claims] 1、船底の両側部にスタビライザを設けた船舶において
、上記スタビライザをそれぞれの軸回りに回転する円筒
体によって構成したことを特徴とする船舶。
1. A ship provided with stabilizers on both sides of the bottom of the ship, characterized in that the stabilizers are constructed of cylindrical bodies that rotate about their respective axes.
JP15240188A 1988-06-22 1988-06-22 Ship Pending JPH026290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15240188A JPH026290A (en) 1988-06-22 1988-06-22 Ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15240188A JPH026290A (en) 1988-06-22 1988-06-22 Ship

Publications (1)

Publication Number Publication Date
JPH026290A true JPH026290A (en) 1990-01-10

Family

ID=15539706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15240188A Pending JPH026290A (en) 1988-06-22 1988-06-22 Ship

Country Status (1)

Country Link
JP (1) JPH026290A (en)

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