JPS5943192Y2 - Hull resistance reduction device - Google Patents
Hull resistance reduction deviceInfo
- Publication number
- JPS5943192Y2 JPS5943192Y2 JP1980073669U JP7366980U JPS5943192Y2 JP S5943192 Y2 JPS5943192 Y2 JP S5943192Y2 JP 1980073669 U JP1980073669 U JP 1980073669U JP 7366980 U JP7366980 U JP 7366980U JP S5943192 Y2 JPS5943192 Y2 JP S5943192Y2
- Authority
- JP
- Japan
- Prior art keywords
- rudder
- protrusion
- hull
- hull resistance
- stern
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Vibration Prevention Devices (AREA)
Description
【考案の詳細な説明】
本考案は、航行時に船体の受ける抵抗を減少させるため
の装置に関し、特に高速船に用いて好適の船体抵抗減少
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for reducing the resistance experienced by a ship during navigation, and particularly to a device for reducing resistance to a ship's hull suitable for use in high-speed ships.
従来の船体抵抗減少装置としては、第１，２図に示すよ
うなものがあり、第１図はその側面図、第２図は第１図
の■−■線に沿う断面図であって、第３図は上記装置を
そなえた船舶の旋回中の状態を示す平面図である。Conventional hull resistance reducing devices include those shown in Figures 1 and 2, with Figure 1 being a side view thereof, and Figure 2 being a sectional view taken along the line ■-■ in Figure 1. FIG. 3 is a plan view showing a state in which a ship equipped with the above device is turning.
そして、第１−３図中の符号１は主船体、２は舵、３は
プロペラ、４は船尾ポツシング、５はプロペラ軸、６は
プロペラキャップ、７は上部舵支持部材、８は舵柄、９
は船体抵抗減少用突出物、９ａ＋ ９ａ’は突出物９の
外板、９ｂ、９ｂ’は突出物９の補強部材、１０は満載
喫水線、１０ａは任意の喫水線、１１は満載喫水線上に
卦ける主船体の後端、１２は船体中心線、１３は船の旋
回軌跡、１４は船尾の水流、１５ａは上部スタンフレー
ム、１５ｂは下部メタンフレーム、ｔは突出量、Ｏは船
体中央点、Ｐは船の転心を示している。In Figures 1-3, 1 is the main hull, 2 is the rudder, 3 is the propeller, 4 is the stern potting, 5 is the propeller shaft, 6 is the propeller cap, 7 is the upper rudder support member, 8 is the rudder handle, 9
is a protrusion for reducing hull resistance, 9a + 9a' is the outer plate of the protrusion 9, 9b and 9b' are reinforcing members of the protrusion 9, 10 is the load waterline, 10a is an arbitrary waterline, and 11 is written on the load waterline. The rear end of the main hull, 12 is the hull centerline, 13 is the turning trajectory of the ship, 14 is the water flow at the stern, 15a is the upper stun frame, 15b is the lower methane frame, t is the protrusion amount, O is the hull center point, P is It shows the ship's turning point.
第１，２図に示すように、満載喫水線１０上における主
船体１の後端１１の後方に突出物９を設けて、その一部
を満載喫水線１０よシ上に位置させるとともに、残部を
満載喫水線１０より下に位置させることによって、主船
体１の船尾より発生する波と突出物９より発生する波と
を互いに干渉させ、これにより船体抵抗を減少させ得る
ことが知られている。As shown in Figures 1 and 2, a protrusion 9 is provided at the rear of the rear end 11 of the main hull 1 above the load waterline 10, a part of which is positioned above the load waterline 10, and the remaining part It is known that by locating it below the waterline 10, waves generated from the stern of the main hull 1 and waves generated from the protrusion 9 can interfere with each other, thereby reducing hull resistance.
しかし、このように舵２よりも後方に、旋回時に船尾の
水流１４をさえぎる効果を持つ突出物９を設けた結果、
船の方向安定性が過大となり、操縦性能の低下（舵利き
の悪化）を招いて、操舵を行なっても船がなかなか旋回
し難くなるという問題点が生じている。However, as a result of providing the protrusion 9 behind the rudder 2, which has the effect of blocking the water flow 14 at the stern when turning,
A problem arises in that the directional stability of the ship becomes excessive, leading to a decline in maneuverability (deterioration of steering ability), making it difficult for the ship to turn even when the ship is steered.
本考案は従来の船体抵抗減少装置にトける上述の諸問題
の解決をはかろうとするもので、船尾後方へ突き出た船
体抵抗減少用突出物をそなえた船舶の舵利きを向上させ
うるようにした装置を提供することを目的とする。The present invention attempts to solve the above-mentioned problems with conventional hull resistance reducing devices, and is designed to improve the steering of ships equipped with a hull resistance reducing protrusion that protrudes toward the rear of the stern. The purpose is to provide a device that
このため本考案の船体抵抗減少装置は、船尾において主
船体の満載喫水線における後端よりも後方へ突出し少く
ともその一部が満載喫水線よりも下方にある船体抵抗減
少用突出物をそなえるとともに、同突出物を舵軸が貫通
して同突出物の直下で上記舵軸に舵が装着されたことを
特徴としている。Therefore, the hull resistance reducing device of the present invention is provided with a hull resistance reducing protrusion at the stern of the ship that protrudes rearward from the rear end of the main hull's load waterline and at least a portion of which is below the load waterline. The rudder is characterized in that the rudder shaft passes through the protrusion and is attached to the rudder shaft directly below the protrusion.
以下、図面によう本考案の実施例としての船体抵抗減少
装置について説明すると、第４．５．６図は本考案の第
１実施例を示すものであり、第７図は本考案の第２実施
例を示すものであり、また第８図は本考案の第３実施例
を示すものであって、第４．７．８図は船尾部の側面図
、第５図は第４図の■−■線に沿う断面図、第６図は第
４図の■−ＶＩ線に沿う断面図である。Hereinafter, the hull resistance reducing device as an embodiment of the present invention will be explained as shown in the drawings. Figures 4.5.6 show the first embodiment of the present invention, and Figure 7 shows the second embodiment of the present invention. Fig. 8 shows a third embodiment of the present invention, Fig. 4.7.8 is a side view of the stern section, and Fig. 5 is a side view of Fig. 6 is a cross-sectional view taken along the line -■ in FIG. 4. FIG. 6 is a sectional view taken along the line -VI in FIG.
そして、第４〜８図中、既述のものと同じ符号は同様の
部分を示しており、また符号１６は操舵機、１７は舵軸
中心線、１８は舵軸を示している。In FIGS. 4 to 8, the same reference numerals as those already described indicate similar parts, and the reference numeral 16 indicates a steering gear, 17 indicates a rudder shaft centerline, and 18 indicates a rudder shaft.
捷ず、本考案の第１実施例について第４〜６図により説
明すると、主船体１の後端１１より後方に突き出るよう
に設けられた突出物９の一部が満載喫水線１０よジ上に
位置しており、その満載喫水線１０よりも下方の部分の
更に下方に、ノ・ンキング状の舵２が配置されている。Without further ado, the first embodiment of the present invention will be explained with reference to FIGS. The rudder 2 is located below the load waterline 10, and further below the load waterline 10, a noking-shaped rudder 2 is disposed.
そしてこの舵２は、突出物９を貫通する舵軸１８によっ
て突出物９の直下に垂下支持されてお一部、舵軸１８は
主船体１内の操舵機１６に連結されて、操舵機１６の作
動により舵角がとられるようになっている。The rudder 2 is partially supported by a rudder shaft 18 penetrating the protrusion 9 directly below the protrusion 9, and the rudder shaft 18 is connected to a steering machine 16 in the main hull 1. The rudder angle is determined by the operation of.
このように、舵２の位置を後方に移して突出物９直下に
設けたことにより、舵２から転心Ｐ１でのレバーが大き
くなり、舵２による旋回モーメントが増大するので、舵
利きを大幅に向上させることができる。In this way, by moving the position of the rudder 2 to the rear and placing it directly below the protrusion 9, the lever at the center of rotation P1 from the rudder 2 becomes larger, and the turning moment by the rudder 2 increases, which greatly improves steering performance. can be improved.
捷た舵２を操作しない場合（直進時）は、舵２も突出物
９の一部と見なすことができるので、舵２から発生する
波も主船体１から発生する波との干渉に利用することが
できる。When the steered rudder 2 is not operated (when traveling straight), the rudder 2 can also be considered as part of the protrusion 9, so the waves generated from the rudder 2 are also used to interfere with the waves generated from the main hull 1. be able to.
このことは突出物９のみの造波作用のかわりに、突出物
９と舵２とを合わせたものの造波作用で置きかえてよい
ことを意味し、相対的に突出物９０寸法を小さくするこ
とができる。This means that the wave-making effect of only the protrusion 9 can be replaced by the wave-making effect of the combination of the protrusion 9 and the rudder 2, and it is possible to relatively reduce the size of the protrusion 90. can.
次に本考案の第２実施例について第７図により説明する
と、この第２実施例では、前述の第１実施例に加えて、
さらにプロペラ３の位置も後方に移されて訃り、このた
め船尾ボッシング４が後方へ延長されている。Next, a second embodiment of the present invention will be explained with reference to FIG. 7. In this second embodiment, in addition to the above-mentioned first embodiment,
Furthermore, the position of the propeller 3 has also been moved to the rear, so that the stern bossing 4 has been extended rearward.
上述の構成によりプロペラ３と舵２とが接近するため、
プロペラ後流が十分に舵２に当たるようになり、第１実
施例の場合よりも更に舵オｌきが向上する。Because the propeller 3 and the rudder 2 are brought closer together due to the above-mentioned configuration,
The wake of the propeller comes to sufficiently hit the rudder 2, and rudder steering is further improved than in the case of the first embodiment.
捷た、上部および下部スタンフレーム１５ａ。Unfolded upper and lower stand frames 15a.
１５ｂからプロペラ３が十分に後方へ離隔されるので、
プロペラ３に流入する水流の乱れが少女くなり、プロペ
ラ起振力が減少するとともに、プロペラ効率が向上する
などの効果が得られるのである。Since the propeller 3 is sufficiently spaced backward from 15b,
The turbulence of the water flow flowing into the propeller 3 is reduced, the propeller excitation force is reduced, and the propeller efficiency is improved.
第８図に示す本考案の第３実施例では、突出物９の下方
に、この突出物９と一体をなして上部舵支持部材７が設
けられ、これに舵２が取付けられているが、その他の構
造は第１実施例と同じで、作用効果についても、第１実
施例とほぼ同じである。In the third embodiment of the present invention shown in FIG. 8, an upper rudder support member 7 is provided below the protrusion 9 and integrally with the protrusion 9, and the rudder 2 is attached to this. The other structure is the same as the first embodiment, and the operation and effect are also almost the same as the first embodiment.
以上詳述したように、本考案の船体抵抗減少装置によれ
ば、主船体の満載喫水線における後端よりも後方へ突き
出た船体抵抗減少用突出物を利用して、同突出物の直下
に舵を配設するという極めて簡素な構成で、船体抵抗の
減少をはかりながら、従来問題とされていた舵利きの低
下を防止することが可能となり、しかも従来の場合に比
べて突出物自体の小型化も可能となるなど、種々の利点
が得られるのである。As described in detail above, according to the hull resistance reducing device of the present invention, the hull resistance reducing protrusion that protrudes rearward from the rear end of the main hull at the load waterline is used, and the rudder is placed directly under the protruding part. With an extremely simple configuration, it is possible to reduce the hull resistance and prevent the deterioration of steering performance, which was a problem in the past, and the protrusion itself is smaller than in the conventional case. Various advantages can be obtained, such as the possibility of
第１図は従来の船体抵抗減少装置を示す船尾側面図、第
２図は■−■線に沿う水平断面図、第３図は船体抵抗減
少装置をそなえた船舶の旋回状態を示す平面図であり、
第４〜６図は本考案の第１実施例としての船体抵抗減少
装置を示すもので、第４図はその側面図、第５図は第４
図の■−■線に沿う水平断面図、第６図は第４図の■−
■線に沿う水平断面図であり、第７図は本考案の第２実
施例としての船体抵抗減少装置を示す側面図、第８図は
本考案の第３実施例としての船体抵抗減少装置を示す側
面図である。
１・・・・・・主船体、２・・・・・・舵、３・・・・
・・プロペラ、４・・・・・・船尾ボッシング、５・・
・・・・プロペラ軸、６・・・・・・プロペラキャップ
、７・・・・・・上部舵支持部材、８・・・・・・舵柄
、９・・・・・・船体抵抗減少用突出物（消波物体）９
ａ、９ａ’・・・・・・突出物の外板 ９ｂ、９ｂ’・
・・・・・突出物の補強部材、１０・・・・・・満載喫
水線、１０ａ・・・・・・任意の喫水線、１１・・・・
・・満載喫水線上に釦ける主船体の後端、１２・・・・
・・船体中心線、１３・・・・・・船の旋回軌跡、１４
・・・・・・船尾の水流、１５ａ・・・・・・上部スタ
ンフレーム、１５ｂ・・・・・・下部スタンフレーム
１６・・・・・・操舵機、１７・・・・・・舵軸中心線
、１８・・・・・・舵軸、ｔ・・・・・・突出量、Ｏ・
・・・・・船体中央点、Ｐ・・・・・・船の転心。Figure 1 is a stern side view showing a conventional hull resistance reduction device, Figure 2 is a horizontal sectional view taken along the line ■-■, and Figure 3 is a plan view showing a turning state of a ship equipped with a hull resistance reduction device. can be,
Figures 4 to 6 show a hull resistance reducing device as a first embodiment of the present invention. Figure 4 is a side view of the device, and Figure 5 is a side view of the device.
Horizontal sectional view along the line ■-■ in the figure, Figure 6 is the ■-■ in Figure 4.
7 is a side view showing a hull resistance reducing device as a second embodiment of the present invention, and FIG. 8 is a horizontal sectional view along the line; FIG. 8 is a side view showing a hull resistance reducing device as a third embodiment of the present invention. FIG. 1... Main hull, 2... Rudder, 3...
...Propeller, 4...Stern bossing, 5...
... Propeller shaft, 6 ... Propeller cap, 7 ... Upper rudder support member, 8 ... Rudder handle, 9 ... For reducing hull resistance Projection (wave-dissipating object) 9
a, 9a'...Outer plate of protrusion 9b, 9b'・
... Reinforcing member for protrusions, 10 ... Full load waterline, 10a ... Arbitrary waterline, 11 ...
...Aft end of the main hull above the load waterline, 12...
...Hull center line, 13... Ship's turning trajectory, 14
...Water flow at the stern, 15a...Upper stun frame, 15b...Lower stun frame
16... Steering gear, 17... Rudder shaft center line, 18... Rudder shaft, t... Protrusion amount, O.
...The center point of the ship, P...The turning center of the ship.
Claims (1)
方へ突出し少くともその一部が満載喫水線よりも下方に
ある船体抵抗減少用突出物をそなえるとともに、同突出
物を舵軸が貫通して同突出物の直下で上記舵軸に舵が装
着されたことを特徴とする船体抵抗減少装置。At the stern, there is a protrusion for reducing hull resistance that protrudes rearward from the rear end of the main hull at the load waterline, and at least a portion of the protrusion is below the load waterline, and the rudder shaft passes through the protrusion to extend the protrusion. A hull resistance reducing device characterized in that a rudder is attached to the rudder shaft directly below an object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980073669U JPS5943192Y2 (en) | 1980-05-28 | 1980-05-28 | Hull resistance reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980073669U JPS5943192Y2 (en) | 1980-05-28 | 1980-05-28 | Hull resistance reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56174389U JPS56174389U (en) | 1981-12-23 |
| JPS5943192Y2 true JPS5943192Y2 (en) | 1984-12-20 |
Family
ID=29436453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980073669U Expired JPS5943192Y2 (en) | 1980-05-28 | 1980-05-28 | Hull resistance reduction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943192Y2 (en) |
-
1980
- 1980-05-28 JP JP1980073669U patent/JPS5943192Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56174389U (en) | 1981-12-23 |
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