JPS58224880A - Hull resistance reducing device - Google Patents
Hull resistance reducing deviceInfo
- Publication number
- JPS58224880A JPS58224880A JP57108792A JP10879282A JPS58224880A JP S58224880 A JPS58224880 A JP S58224880A JP 57108792 A JP57108792 A JP 57108792A JP 10879282 A JP10879282 A JP 10879282A JP S58224880 A JPS58224880 A JP S58224880A
- Authority
- JP
- Japan
- Prior art keywords
- hull
- stern
- waves
- resistance
- width
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/40—Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B39/061—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water by using trimflaps, i.e. flaps mounted on the rear of a boat, e.g. speed boat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/10—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by damping the waves, e.g. by pouring oil on water
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明は船体による造波抵抗を減少ｕしめる手段を提供
づるものである。船の船首船体を球状船首とし１球状船
首から発生ずる波と、イの後方の船体部分から発生づる
波との干渉を利用し推進抵抗を減少せ−しめる手段は既
に実用されている。また船尾に物体を取りつ【ノて、そ
の物体から発生４る波とその前方の船体部から発生する
波との干渉を計り船の造波抵抗を低減させる手段は、例
えば特開に１５５−８３６７７＠ ｌ船舶の造波抵抗を
低減さける方法とその装置」が公開されＣいる。即ち同
公報に依るど、船体の満載吃水線の最も後方の点よりも
後方に後端部が伸びているとともに、少くとも一部が前
記満載吃水線よりも下位になるように、適数個の突起物
を該船体の後部に設けることにまり造波抵抗を低減する
ことを特徴とする方法が記載されている。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a means for reducing wave-making resistance due to a ship's hull. A method has already been put into practice in which the bow hull of a ship is made into a spherical bow and the propulsion resistance is reduced by utilizing the interference between the waves generated from the spherical bow and the waves generated from the rear part of the hull. In addition, a method for reducing the wave-making resistance of a ship by attaching an object to the stern and measuring the interference between the waves generated by the object and the waves generated from the hull in front of the object is disclosed in, for example, Japanese Patent Laid-Open No. 155-155. 83677@ l "Method and device for reducing wave-making resistance of ships" has been published. In other words, according to the same bulletin, an appropriate number of parts are installed so that the rear end extends behind the most aft point of the load water line of the hull, and at least a portion is below the load water line. A method is described in which a protrusion is provided at the rear of the hull to reduce wave-making resistance.
而して該発明は船体の後端から発生する波ど、前記突起
物から発生する波とが相豆に干渉し、両方の波の位相関
係を逆にならしめるようにしたもので、該突起物の形状
は添Ｆｆ’Ｊの図面ならびに説明によると長さが船の長
さの１〜３％程度とし、幅が長さより小さくなっており
、滑らかな曲線で構成される高さと長さに比して幅の小
さな流線形をしているものがその発明の基礎になってい
るものである。According to the invention, waves generated from the rear end of the ship's hull and waves generated from the protrusion interfere with the waves, and the phase relationship of both waves is reversed. According to the attached drawings and explanations of Ff'J, the shape of the object is about 1 to 3% of the length of the ship, the width is smaller than the length, and the height and length are made up of smooth curves. The invention is based on a streamlined shape with a smaller width.
而して、船尾後端の１つないしはそれ以上の点より波が
発生している場合には、その発生点に夫々上記の突起物
を設けることにより波を減らし、造波抵抗を低減させる
ことができる。Therefore, if waves are generated from one or more points on the rear end of the ship, the above-mentioned protrusions are provided at each of the points where waves are generated to reduce waves and wave-making resistance. be able to.
一方、本発明は前記船体の満載吃水線の最も後方に船体
の後部に突起物を設けに訂１よ前記公開発明に同じであ
るが、本発明は特に突起物の下面の形状が平板状、若し
くは少くども］４面がフラノ１−な形状をしていること
を特徴とづるものであって、特に満載吃水線に於ける船
尾後端 □“の幅が広いために船尾波の発生場所が上記
のような点でなく、船体の横方向に広がる線である場合
に有効に波を減らすための装置として案出されたもので
ある。以下本発明について説明する。On the other hand, the present invention is similar to the disclosed invention in that a protrusion is provided at the rear of the hull at the rearmost position of the load water line of the hull, but the present invention is particularly advantageous in that the lower surface of the protrusion has a flat shape. It is characterized by its four sides having a flannel shape, and the width of the rear end of the stern at the fully loaded waterline is particularly wide, so the stern waves are generated at the stern wave. This invention was devised as a device for effectively reducing waves not in the above-mentioned points but in cases where waves spread in the lateral direction of the ship's hull.The present invention will be described below.
本発明は船尾に発生°４る波Ｊ５よび渦を減らして抵抗
を減らずことを意図しており、その効果の確認のため下
面がフラットな付加物を船体後端の直後に設けてタンク
テス１−を行った。第１図、第２図は該タンクテストの
船型の概略図−Ｃ１付加物の下面が満載吃水線下に位置
するようにイー１加物Ａを水平に取りつけＩＣものであ
る。図に示す如く船尾船底と付加物Ａの下面との間に約
０．５ｍの段をつけたもので、付加物のない場合には波
および渦が船尾直後に多く発生し航跡を形成するが、こ
の波および渦の発生ずる位置にその大きさに該当する大
きさの付加物をその下面が水面下にくるように装着覆る
ことによって波および渦の発生をおさえるものである。The present invention is intended to reduce the waves J5 and vortices generated at the stern without reducing the resistance, and in order to confirm the effect, an appendage with a flat bottom was installed immediately after the rear end of the hull, and tank test 1 was carried out. - was done. Figures 1 and 2 are schematic diagrams of the hull form for the tank test - an IC model in which the E1 addition A is mounted horizontally so that the lower surface of the C1 addition is located below the load water line. As shown in the figure, there is a step of approximately 0.5 m between the stern bottom and the lower surface of appendage A. If there were no appendage, many waves and vortices would occur immediately after the stern, forming a wake. The generation of waves and vortices is suppressed by installing and covering the position where these waves and vortices occur with an appendage of a size corresponding to that size so that its lower surface is below the water surface.
本タンクテス１−の概要は次の通りである。供試船主要
目はｌ Ｘ３Ｘｄ ＝ １４８ｍ Ｘ２１．１２１１１
Ｘ ６．５ｍである。船尾に（Ｊ加物である５ｍ Ｘ８
ｍの平板をその下面が満載吃水線１約０．５Ｉ１１の位
置になるように設けたものと、付加物のないものとの比
較計測結果を本船の設計速力である２３．３ｋｎｏｔｓ
（フルード数０．３０９）において記づと、ｋ
ＣＷ ｃｗｐ Ｃｔｓイｑ加物なし ０．３３
． ２．５（３１，１０２，５７２イｑ加物あり ０
．２８ １．６５ ０．９８ ２．３４２という
結果になり、付加物の効果として（付加物なし１００％
に対し）、
１、船尾流れの整流 ｋ・・・−４％２、線形
造波抵抗 ＣＷＩ）・・・−１１％３、局所非
線形造波抵抗 Ｃｗ・・・−３５％全 抵 抗
ＣｔＳ・・・−９％の結果
を得たく第３図参照）。The outline of this tank test 1- is as follows. The main features of the test ship are l X3Xd = 148m X21.12111
x 6.5m. At the stern (J addition 5m x 8
Comparative measurement results of a flat plate of m length with the bottom surface at a position of approximately 0.5I11 of the full load water line and a plate without any appendages are shown at 23.3 knots, which is the ship's design speed.
(Froude number 0.309), k
CW cwp Cts without addition 0.33
．． 2.5 (31,102,572 q with additives 0
．． The results are 28 1.65 0.98 2.342, and as the effect of the additive (100% without the additive)
), 1. Rectification of stern flow k...-4%2. Linear wave-making resistance CWI)...-11%3. Local non-linear wave-making resistance Cw...-35% total resistance
CtS...See Figure 3 to obtain a result of -9%).
このタンクテストの結果、付加物の大きさ及び位置は横
幅が満載吃水線の後端部幅Ｆ３の０．５〜１倍程度で、
長さが１〜３％Ｌ ｐｐ （船体垂線間長）のとき有効
と考えられ、船体船尾がらＮ１すことなく船尾外板に取
りつけ、少くとも石面が水平に近い平板状であること、
また水面”ト数百耗に没した所に下面を形成しているこ
とが必要である。付加物の下面が吃水線下相当深い位置
に没水すると、船尾波や渦の減少に有効に動かないよう
である。第４図は４＝Ｊ加物下面の深さの調節ができる
ように船体１後部に張り出し固定した腕杆４に本発明に
かかる（＝１加物Ａを下端に有する支杆５を上下可動に
支持したもので、付加物Δの下面の深さの調節を行うこ
とができるようにした例である。また、付加物を船尾外
板に沿わして起倒式にづれば、不使用時には外板に沿わ
して格納することもできる。第５図（イ） （ロ）は、
付加物の幅を決める時の基準となる満載吃水線における
船体後端幅Ｂの定義を鋳型的な２種の船尾形状について
示す。As a result of this tank test, the size and position of the appendage is approximately 0.5 to 1 times the width F3 of the rear end of the full load waterline.
It is considered to be effective when the length is 1 to 3% L pp (length between hull perpendiculars), and it must be attached to the stern shell plate without N1 of the hull stern, and at least the stone surface must be in the shape of a flat plate that is close to horizontal.
In addition, it is necessary to form a lower surface in a place where the water surface has been submerged several hundred times.If the lower surface of the appendage is submerged considerably below the water line, it will move effectively to reduce stern waves and vortices. It seems that there is no such thing. Figure 4 shows 4=J, which is attached to an arm rod 4 fixed to the rear part of the hull 1 so as to be able to adjust the depth of the lower surface of the filler (=1), which is attached to a support having a filler A at the lower end. This is an example in which the rod 5 is supported in a vertically movable manner, and the depth of the bottom surface of the appendage Δ can be adjusted.Also, the appendage can be folded down along the stern shell. , it can also be stored along the outer panel when not in use. Figures 5 (a) and (b) show the following:
The definition of the hull aft width B at the full load water line, which is the standard for determining the width of the appendage, is shown for two types of molded stern shapes.
上記説明で理解される如く、本発明は船体中心線上船尾
外板に装着し、下面がほぼ水平でフラットな面を構成す
る物体であって、該下面は満載吃水線における船体後端
幅Ｂの０．５〜１倍程度の幅と１〜３％Ｌｐｐに相当す
る長さを有し、満載吃水線下数百耗の位置になる如く構
成した船体抵抗減少装置であるので、船尾にお【プる波
および渦の発生を抑制する結果、船体抵抗を減少せしめ
る効果が得られる。殊に高速においてその効果が顕著で
ある。As understood from the above description, the present invention is an object that is attached to the stern outer plate above the hull centerline and whose lower surface forms a substantially horizontal and flat surface, and the lower surface has a width B at the rear end of the hull at the load water line. The hull resistance reducing device has a width of about 0.5 to 1 times and a length corresponding to 1 to 3% Lpp, and is configured to be located several hundred points below the load water line. As a result of suppressing the generation of rolling waves and vortices, the effect of reducing hull resistance can be obtained. This effect is particularly noticeable at high speeds.
第１図は船の船尾部を示す側面図、第２図は同底面図、
第３図は抵抗曲線、第４図は本発明の詳細な説明する側
面図である。第５図（イ）（ロ）は満載吃水線における
船体後端幅の定義を示した平面図である。
１・・・船体、 ２・・・舵、 ３・・・プロペラ。
特許出願人代理人氏名
弁理士 角 １）嘉′丹町１、
手続補正書（自発）
昭和５７年７月２７日
特許庁長官若杉和夫 殿
１、事件の表示 昭和５７年 特 許 願第１０８’７
９２ 号２、発明の名称 船体抵抗減少装置
３、補正をする者事件との関係 特 許 出願人代表
者 長谷川 謙浩
４、代 理 人 〒６５０
住 所 神戸市中央区東町１２３番地の１ 貿易ビ
ル９階電、括神戸（０７ｇ） ３２１−８８２２大代表
５、補正指令の日付 昭和 年 月 日２、特許
請求の範囲
（１） 船体中心線上船尾外板後部に装着し、下面が
ほぼ水平でフラットな面を有する物体であって、該物体
の下面が船尾における吃水線下数百粍の位置になる如く
構成した船体抵抗減少装置。
（２） 前記物体の下面における幅を吃水線における
船体後端幅の０．５〜ｌとし、下面Ｇこおける長さを船
体垂線間長の１〜３係とした前記特許請求の範囲第１項
記載の船体抵抗減少装置１１：
脈２図
（す）
手続補正書（自制
昭和５７年１０月 ８ 日
特許庁長官若杉和夫 殿
１、事件の表示 昭和５７ 年 特 許 願第１０８７
９２ 号２、発明の名称 船体抵抗減少装置
３、補正をする者事件との関係 特 許 出願人代表
者 長谷川 謙浩
４、 代 理 人 〒６５０Figure 1 is a side view showing the stern of the ship, Figure 2 is a bottom view of the same,
FIG. 3 is a resistance curve, and FIG. 4 is a side view illustrating the invention in detail. Figures 5(a) and 5(b) are plan views showing the definition of the width of the rear end of the hull at the full load waterline. 1... Hull, 2... Rudder, 3... Propeller. Name of Patent Applicant's Representative: Patent Attorney Kaku 1) Ka'tancho 1, Procedural Amendment (Voluntary) July 27, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1, Indication of Case 1988 Patent Application No. 108' 7
92 No. 2, Title of the invention: Hull drag reduction device 3, Relationship with the case of the person making the amendment Patent Representative of applicant: Kenhiro Hasegawa 4, agent 650 Address: Trade Building, 123-1 Higashimachi, Chuo-ku, Kobe City 9th Floor Electric, Kuko Kobe (07g) 321-8822 Main Representative 5, Date of Amendment Directive 1925, Month, Day 2, Claims (1) Mounted on the rear of the stern shell on the centerline of the hull, and the lower surface is almost horizontal and flat. A hull resistance reducing device comprising an object having a flat surface, the lower surface of which is located several hundred meters below the waterline at the stern. (2) The width at the lower surface of the object is 0.5 to 1 of the rear end width of the hull at the waterline, and the length at the lower surface G is 1 to 3 times the length between the hull perpendiculars. Hull resistance reducing device 11 described in Section 2: Pulse 2 (su) Procedural amendment (self-imposed October 8, 1981 Kazuo Wakasugi, Commissioner of the Patent Office, 1, Indication of the case 1987 Patent Application No. 1087)
92 No. 2, Title of the invention Hull resistance reducing device 3, Relationship to the case of the person making the amendment Patent Representative of applicant: Kenhiro Hasegawa 4, Agent 〒650
Claims (2)
水平でフラットな面を有Ｊる物体であって、該物体の１
・面が船尾外板の吃水線下数百耗の位置になる如く構成
した船体抵抗減少装置。(1) An object that is attached to the rear of the stern shell plate above the centerline of the hull and has a substantially horizontal and flat lower surface, and one of the objects
- Hull resistance reduction device configured so that the surface is located several hundred points below the waterline of the stern shell.
体後端幅の０５〜１とし、船体垂線間長の１〜３％とし
た前記特許請求の範囲第１項記載の船体抵抗減少装置。(2) The hull resistance according to claim 1, wherein the width of the lower surface of the object is 05 to 1 of the width of the rear end of the hull at the water line, and 1 to 3% of the length between the hull perpendiculars. Reduction device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57108792A JPS58224880A (en) | 1982-06-23 | 1982-06-23 | Hull resistance reducing device |
| DE19823236188 DE3236188A1 (en) | 1982-06-23 | 1982-09-30 | Device for reducing the wave resistance of a vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57108792A JPS58224880A (en) | 1982-06-23 | 1982-06-23 | Hull resistance reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58224880A true JPS58224880A (en) | 1983-12-27 |
Family
ID=14493590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57108792A Pending JPS58224880A (en) | 1982-06-23 | 1982-06-23 | Hull resistance reducing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS58224880A (en) |
| DE (1) | DE3236188A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164660U (en) * | 1984-10-03 | 1986-05-02 | ||
| CN105172995A (en) * | 2015-08-06 | 2015-12-23 | 哈尔滨工程大学 | High-speed boat angle-variable wave suppression device combined with surface propeller |
| CN107600354A (en) * | 2017-10-06 | 2018-01-19 | 大连理工大学 | A kind of flow-disturbing system for reducing ship rolling motion |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124395C1 (en) * | 1991-07-23 | 1993-01-07 | Hans-Peter 5970 Plettenberg De Schulte | |
| JP2598950Y2 (en) * | 1993-05-24 | 1999-08-23 | 川崎重工業株式会社 | Stern structure |
| FR2767777A1 (en) * | 1997-08-28 | 1999-02-26 | Francis Lay | Rescue board for sea scooter |
| GB0813359D0 (en) * | 2008-07-22 | 2008-08-27 | Halpin Thomas O | Halfin and/or platerfin |
| RU168863U1 (en) * | 2016-06-16 | 2017-02-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) | Non-self-propelled hull |
| SE542220C2 (en) * | 2016-11-02 | 2020-03-17 | Kongsberg Maritime Sweden Ab | A device for reducing the resistance of water surface vessels |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154984A (en) * | 1974-05-31 | 1975-12-13 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE721159C (en) * | 1940-12-04 | 1942-05-28 | Erich Grundt Dipl Ing | Stem with wave swallowing pockets for ships |
| DE2263733A1 (en) * | 1972-12-28 | 1974-07-04 | Otto Heinz Dipl Ing Brandi | MOTOR YACHT |
| JPS5815352B2 (en) * | 1978-12-19 | 1983-03-25 | 乾 崇夫 | Ship wave resistance reduction device |
| JPS56167577A (en) * | 1980-05-28 | 1981-12-23 | Mitsubishi Heavy Ind Ltd | Reducing device of hull resistance |
| JPS56167578A (en) * | 1980-05-28 | 1981-12-23 | Mitsubishi Heavy Ind Ltd | Reducing device of hull resistance |
| JPS56167580A (en) * | 1980-05-29 | 1981-12-23 | Mitsubishi Heavy Ind Ltd | Reducing device of hull resistance |
| JPS56167579A (en) * | 1980-05-29 | 1981-12-23 | Mitsubishi Heavy Ind Ltd | Reducing device of hull resistance |
-
1982
- 1982-06-23 JP JP57108792A patent/JPS58224880A/en active Pending
- 1982-09-30 DE DE19823236188 patent/DE3236188A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154984A (en) * | 1974-05-31 | 1975-12-13 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6164660U (en) * | 1984-10-03 | 1986-05-02 | ||
| JPH0413787Y2 (en) * | 1984-10-03 | 1992-03-30 | ||
| CN105172995A (en) * | 2015-08-06 | 2015-12-23 | 哈尔滨工程大学 | High-speed boat angle-variable wave suppression device combined with surface propeller |
| CN107600354A (en) * | 2017-10-06 | 2018-01-19 | 大连理工大学 | A kind of flow-disturbing system for reducing ship rolling motion |
| CN107600354B (en) * | 2017-10-06 | 2023-09-19 | 大连理工大学 | Turbulent flow system for reducing ship rolling motion |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3236188A1 (en) | 1983-12-29 |
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