JPS6194894A - Device for reducing rolling of hull - Google Patents
Device for reducing rolling of hullInfo
- Publication number
- JPS6194894A JPS6194894A JP21799584A JP21799584A JPS6194894A JP S6194894 A JPS6194894 A JP S6194894A JP 21799584 A JP21799584 A JP 21799584A JP 21799584 A JP21799584 A JP 21799584A JP S6194894 A JPS6194894 A JP S6194894A
- Authority
- JP
- Japan
- Prior art keywords
- fin
- hull
- rolling
- fins
- ship
- 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
Links
Landscapes
- Wind Motors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、船舶の航行時における船体の横揺れを軽減す
るための装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for reducing the rolling of a ship during navigation.
船舶の航行時における船体の横揺れ軽減装置としては、
船体の両側に船体（（へ揺れ抑制用フィンを回動可能に
そなえるようにしたもの（フィンスタビライザー）が、
従来から用いられており、船体の航走に伴いフィンに沿
う外水の流れにより同フィンに揚力が生じるのを利用し
て、船体の横揺れを軽減することが行なわれている。As a device to reduce the rolling motion of a ship while sailing,
A fin stabilizer is equipped with rotatable fins for suppressing rocking on both sides of the hull.
It has been used in the past to reduce the rolling of a ship by utilizing the lift force generated on the fins by the flow of outside water along the fins as the ship sails.
ところで、このような従来の船体横揺れ軽減装置の場合
、船舶の低速航行時にはフィンのまわりの流速が小さい
ので、フィンの揚力が不足して、船体の横揺れを十分に
軽減できなくなるという問題点がある。By the way, in the case of such conventional ship roll reduction devices, when the ship is traveling at low speed, the flow velocity around the fins is low, so the lift of the fins is insufficient, making it impossible to sufficiently reduce the ship roll. There is.
しかしながら海洋新究船等は観測作業時には、低速航行
する場合が多く、作業能率や安全上の問題から低速航行
中の横揺れ軽減は是非とも必要である。However, oceanographic research vessels often navigate at low speeds during observation work, and it is absolutely necessary to reduce rolling during low-speed navigation due to work efficiency and safety issues.
そこで、低速航行時においぞもフィンによる効果を十分
に得られるようにするため、フィンの翼長を艮くして、
フィン面積の増大をはかることが考えられろか、この場
合、フィンが船体舷側線を超えて横方向に突出すること
になり、接岸時等に岸壁などと干渉し合い操船に支障を
未すばがりでなく、フィン自体の強度上にも問題が生じ
ろ。さらに、フィン面積の増加によって、船体抵抗が増
大するという問題点もある。Therefore, in order to obtain the full effect of the fins during low-speed cruising, the wing length of the fins was increased.
Is it possible to increase the area of the fins? In this case, the fins would protrude laterally beyond the ship's side line, which would interfere with the quay walls and interfere with ship maneuvering when berthed. Not only that, but there will also be problems with the strength of the fins themselves. Furthermore, there is also the problem that the increase in fin area increases the hull resistance.
本発明は、上述の諸点に鑑みて、フィンの翼艮を増すこ
となく、ＩＩＦＩ舶の高中速航行時のみならず、その低
速航行時においても、船舶の横揺れを十分に軽減でさる
ようにした船体横揺れ軽減装置を提供することを目的と
する。In view of the above-mentioned points, the present invention is designed to sufficiently reduce the rolling motion of an IIFI vessel not only during high- and medium-speed cruising, but also during low-speed cruising, without increasing the wing shape of the fins. The purpose of the present invention is to provide a ship body rolling mitigation device.
このため本発明の船体横揺れ軽減装置は、水面ドにおい
て船体の両側にそれぞれ船体横揺れ抑制用フィンを回動
可能にそなえ、これらのフィンの翼端にそれぞれつばが
収り付けられていることを特命としている。For this reason, the hull roll mitigation device of the present invention is provided with rotatable hull roll suppression fins on both sides of the hull at the water surface, and flanges are housed at the wing tips of these fins. is a special mission.
上述の本発明の船体横揺れ軽減装置では、船体横揺れ抑
制用フィンの翼端に取り付けられたつばにより、鏡像効
果が得られ、フィンの揚力を増加させることができる。In the above-mentioned ship body roll reduction device of the present invention, the mirror image effect is obtained by the collar attached to the wing tip of the ship body roll suppression fin, and the lift of the fin can be increased.
以下、図面により本発明の一実施例としての船体横揺れ
軽減装置について説明すると、第１図は本装置をそなえ
た船舶を示す横断面図、第２図は同船舶の斜視図である
。Hereinafter, a ship body rolling mitigation device as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a cross-sectional view showing a ship equipped with the device, and Fig. 2 is a perspective view of the ship.
第１．２図に示すように、水面下において、船体Ｓの両
側のそれぞれには船体横揺れ抑制用フィン１が図示しな
い駆動機構に上り回動可能にそなえられている。As shown in FIG. 1.2, below the water surface, fins 1 for suppressing hull roll are provided on each of both sides of the hull S so that they can be rotated by a drive mechanism (not shown).
そして、各フィン１の翼端にはつば２が取り付けられて
いる。このつば２は翼断面形の側面形状を有する平板で
形成されている。A collar 2 is attached to the wing tip of each fin 1. The collar 2 is formed of a flat plate having a side surface shaped like a wing section.
なお、図中の符号Ｗは喫水線を示す。Note that the symbol W in the figure indicates the waterline.
本発明の船体横揺れ軽減装置は上述のごとく構成されて
いるので、フィン１の翼端部に装着されたつば２により
、鏡像効果、すなわちフィン１の翼面がっば２の外側に
延長されたのと同じ効果が得られることになり、フィン
１によって発生する揚力が増加する。Since the hull roll reduction device of the present invention is constructed as described above, the flange 2 attached to the wing tip of the fin 1 creates a mirror image effect, that is, the wing surface of the fin 1 is extended to the outside of the flange 2. The same effect as above is obtained, and the lift generated by the fins 1 is increased.
したがって、船舶の低速航行時でも、フィン１による揚
力を十分に得ることができるようになるので、船体Ｓの
横揺れを確実に軽減することができるのである。Therefore, even when the ship is traveling at low speed, it is possible to obtain sufficient lift from the fins 1, so that the rolling of the ship S can be reliably reduced.
また、フィン１の翼長な艮くする必要がないので、従来
のように、船体Ｓの接岸時に岸壁等にフィン１が接触す
る危険はなくなるとともに、通常航行時の船体抵抗の増
加も最小限に抑えることができる。Furthermore, since there is no need to increase the wing length of the fin 1, there is no danger of the fin 1 coming into contact with a quay when the ship S approaches the berth, and the increase in hull resistance during normal navigation is also minimized. can be suppressed to
以上詳述したように、本発明の船体横揺れ軽減装置によ
れば、水面下において船体の両側にそれぞれ船体横揺れ
抑制用フィンを回動可能にそなえ、これらの７゛インの
翼端に七入ぞれつばが取り付けられるという極めて簡素
な構成で、通常航行時にフィンによる船体抵抗の増加を
招くことなく、高中速航行時の場合と同様に低速航行時
においても十分に船体の横揺れが軽減される効果がある
。As described in detail above, according to the hull roll reduction device of the present invention, hull roll suppression fins are rotatably provided on both sides of the hull under water, and seven fins are provided at the tips of these 7-inch wings. It has an extremely simple configuration in which an inset brim is attached, and the fins do not increase hull resistance during normal sailing, and the rolling of the ship is sufficiently reduced during low-speed sailing as well as during high-medium speed sailing. It has the effect of being
第１．２図は本発明の一実施例としての船体横揺れ軽減
装置を示すもので、ｔｌＳ１図は本装置をそなえた船舶
を示す横断面図、第２図は同船舶の斜視図である。
１・・船体横揺れ抑制用フィン、２・・つば、Ｓ・・船
体、Ｗ・・喫水線。
復代理人 弁理士 飯 沼 義 ４
第 １ 図
第２図Figure 1.2 shows a ship body rolling mitigation device as an embodiment of the present invention, Figure tlS1 is a cross-sectional view of a ship equipped with this device, and Figure 2 is a perspective view of the same ship. . 1.Fin for suppressing hull rolling, 2.Brim, S..Hull, W..Waterline. Sub-Agent Patent Attorney Yoshi Iinuma 4 Figure 1 Figure 2
Claims (1)
フィンを回動可能にそなえ、これらのフィンの翼端にそ
れぞれつばが取り付けられていることを特徴とする、船
体横揺れ軽減装置。A ship body roll reduction device characterized by rotatably providing ship body roll suppression fins on both sides of the ship body under water, and having flanges attached to the wing tips of these fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21799584A JPS6194894A (en) | 1984-10-17 | 1984-10-17 | Device for reducing rolling of hull |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21799584A JPS6194894A (en) | 1984-10-17 | 1984-10-17 | Device for reducing rolling of hull |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194894A true JPS6194894A (en) | 1986-05-13 |
Family
ID=16712970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21799584A Pending JPS6194894A (en) | 1984-10-17 | 1984-10-17 | Device for reducing rolling of hull |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100773924B1 (en) * | 2007-02-27 | 2007-11-06 | 주식회사 스페코 | Vessel fin blade for reduction of cavitation |
-
1984
- 1984-10-17 JP JP21799584A patent/JPS6194894A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100773924B1 (en) * | 2007-02-27 | 2007-11-06 | 주식회사 스페코 | Vessel fin blade for reduction of cavitation |
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