JPS6015281A - Ship - Google Patents
ShipInfo
- Publication number
- JPS6015281A JPS6015281A JP58122410A JP12241083A JPS6015281A JP S6015281 A JPS6015281 A JP S6015281A JP 58122410 A JP58122410 A JP 58122410A JP 12241083 A JP12241083 A JP 12241083A JP S6015281 A JPS6015281 A JP S6015281A
- Authority
- JP
- Japan
- Prior art keywords
- stern
- ship
- hull
- view
- vortex
- 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
- 238000007747 plating Methods 0.000 claims 2
- 238000000926 separation method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は船舶に関する。[Detailed description of the invention] The present invention relates to ships.
従来のトランサムスターンを有する船舶においては、第
１図側面図、第２回船尾部斜視図 に示すように、その
船尾端は１板の平板で構成されている。In a conventional ship having a transom stern, the stern end is composed of a single flat plate, as shown in the side view in Figure 1 and the second perspective view of the stern.
しかしながら、このような船舶においては、第３図用−
ＩＩＩ断面図に示すように、トランサムスターンの後方
と船底部６とでは流速の差が大きく、両者の１寛界７で
剥離を生じ、渦８が生成し、また第４図ＩＶ−■断面図
に示すように、トランザムスターン後方と船側部９との
流速差も大きく、両者の境界］０においても剥離を生じ
、渦１１が生成し、これらの渦は船体抵抗の増加を引き
起こしている。However, in such ships, the
As shown in the cross-sectional view III, there is a large difference in flow velocity between the rear of the transom stern and the bottom 6, and separation occurs between the two at one angle 7, generating a vortex 8. As shown in , the difference in flow velocity between the rear of the transom stern and the ship side part 9 is also large, and separation occurs even at the boundary between the two, generating vortices 11, and these vortices cause an increase in the hull resistance.
本発明はこのような事情に鑑みて提案されたもので、ト
ランザムスターンで生ずる渦抵抗を減少する経済的な船
舶を提供することを目的とする。The present invention was proposed in view of the above circumstances, and an object of the present invention is to provide an economical ship that reduces the vortex resistance generated in the transom stern.
そのために本発明は、トランサムスターンを有する船舶
において、船側外板および船底外板とそれぞれと接続す
るトランサムスターンの端縁部に沿って複数の凹凸を設
けたことを特徴とする。To this end, the present invention is characterized in that, in a ship having a transom stern, a plurality of projections and depressions are provided along the edge portions of the transom stern that are connected to the ship side skin and the bottom skin, respectively.
本発明の一実施例を図面について説明すると、第５図は
その船尾部を示す部分斜視図、第６図は第５図の作用を
示す説明図、第７図は第５図の変形例を示す同じく部分
斜視図である。An embodiment of the present invention will be explained with reference to the drawings. FIG. 5 is a partial perspective view showing the stern part of the invention, FIG. 6 is an explanatory view showing the operation of FIG. 5, and FIG. 7 is a modification of FIG. 5. It is also a partial perspective view shown in FIG.
」二図において、第１〜ノ図と同一の記号はそれぞれ第
１〜４図と同一の部材を示し、本発明においては、トラ
ンサムスターン５と船側部９および船底部６との境界７
．１（１に沿って三角柱型の切り欠き１３不：設けるこ
とで凹凸をつける。In Figure 2, the same symbols as in Figures 1 to 4 indicate the same members as in Figures 1 to 4, respectively.
．． 1 (A triangular prism-shaped notch 13 is provided along 1 to create an uneven surface.
このよう々船舶においては、切欠き１３による凹凸の撹
乱作用により第６図に示す船底部６および船側部９から
の流れの剥削による渦８．Ｊ１が拡散され、渦８，１１
の強さが弱められて船体抵抗を減少させることができる
。In a ship like this, the disturbance effect of the unevenness by the notch 13 causes a vortex 8. J1 is diffused and vortices 8, 11
strength can be weakened to reduce hull resistance.
すなわち、第３図および第４図に示した剥離による渦８
，１］が発生すると、渦８，１１の中心部では圧力が低
下するので、トランザムスターン表面の圧力も低下して
抵抗の増加を招くのであるが、これらの渦８，１１０中
心を結ぶと、第６図に示すように、１本の渦 ４系１２
となり、この部系１２が、第５図に示すトランサムスタ
ーン５の凹凸１３により渦の発生位置が変わるため部系
１２は切断され、丑だそれぞれの渦８，１１も拡散して
弱められるので、中心部の賭方低下を小さくすることが
でき、圧力抵抗の減少が達成できるのである３）
々お、トランサムスターンの凹凸は、第７図に示すよう
に、トランサムスターン図５と船側部９およびｌｌｎ底
部６との境界７，１０に沿って三角柱型の突起物１４を
複数突設するようにしてもよく、前記実施例と実質的に
同一の作用効果を奏することかできる。That is, the vortex 8 due to separation shown in FIGS. 3 and 4
, 1] occurs, the pressure decreases at the center of the vortices 8 and 11, and the pressure on the transom stern surface also decreases, causing an increase in resistance. However, when the centers of these vortices 8 and 110 are connected, As shown in Figure 6, one vortex 4 system 12
Since the vortex generation position of this section 12 changes due to the unevenness 13 of the transom stern 5 shown in FIG. 5, the section 12 is cut off, and the respective vortices 8 and 11 are also diffused and weakened. This makes it possible to reduce the drop in the center part of the ship and reduce pressure resistance.3) As shown in Figure 7, the irregularities of the transom stern can be seen in the transom stern Figure 5, the ship's sides 9 and A plurality of triangular prism-shaped protrusions 14 may be provided protrudingly along the boundaries 7 and 10 with the lln bottom portion 6, and substantially the same effects as those of the previous embodiment can be achieved.
要するに本発明によれば、トランサムスターンを有する
船舶において、船側外板および船底外板とそれぞれと接
続するトランザムスターンの端縁部に沿って複数の凹凸
を設けたことにより、航行経済を図る船舶を得るから。In short, according to the present invention, in a ship having a transom stern, a plurality of irregularities are provided along the edge of the transom stern that connects with the side skin plate and the bottom skin plate, respectively, thereby realizing a ship that aims for navigation economy. Because you will get it.
本発明は産業上極めて有益なものである。The present invention is extremely useful industrially.
第１図は公知のトランサムスターンを具えた船舶を示す
側面図、第２図は第１図の船尾部を示す部分斜視図、第
３図および第４図はそれぞれ第２図のｍ −Ｉｌｌおよ
びＩＶ−ＩＶに沿った断面図、第５図は本発明の一実施
例を示す船尾部の宗１視図、第６図は第５図の作用を示
す説明図、第７図は第５図の変形例を示す同じく部分斜
視図である。
］・・水面、２・・船体、３・・プロペラ、４・・舵、
５・・ｌ・ランサムスターン、６・・船底部、７・・境
界、８・・渦、９・・船側部、１０・・境界、１１・・
渦、１２・・部系、１３・・切欠き（凹凸）、１７１・
・突起物、
復代理人 弁理士 塚 本 正 文
（！”ｉ＋ −４７０−FIG. 1 is a side view showing a ship equipped with a known transom stern, FIG. 2 is a partial perspective view showing the stern section of FIG. 1, and FIGS. 3 and 4 are m-Ill and FIG. 5 is a cross-sectional view along IV-IV, FIG. 5 is a perspective view of the stern section showing an embodiment of the present invention, FIG. 6 is an explanatory diagram showing the operation of FIG. 5, and FIG. It is the same partial perspective view showing a modification of . ]... Water surface, 2... Hull, 3... Propeller, 4... Rudder,
5...l.ransom stern, 6...bottom, 7...boundary, 8...vortex, 9...ship side, 10...boundary, 11...
Vortex, 12. Part system, 13. Notch (unevenness), 171.
・Protrusions, sub-agent Masafumi Tsukamoto (!”i+ -470-
Claims (1)
よび船底外板とそれぞれと接続するトランザノ・スター
ンの端縁部に沿って複数の凹凸を設けたことを特徴とす
る船舶。A ship having a transom stern, characterized in that a plurality of irregularities are provided along the edge of the transom stern that connects with the ship's side shell plating and the bottom shell plating, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58122410A JPS6015281A (en) | 1983-07-07 | 1983-07-07 | Ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58122410A JPS6015281A (en) | 1983-07-07 | 1983-07-07 | Ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6015281A true JPS6015281A (en) | 1985-01-25 |
Family
ID=14835112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58122410A Pending JPS6015281A (en) | 1983-07-07 | 1983-07-07 | Ship |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015281A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62149495U (en) * | 1986-03-14 | 1987-09-21 | ||
| JP2011255736A (en) * | 2010-06-07 | 2011-12-22 | Universal Shipbuilding Corp | Vessel |
-
1983
- 1983-07-07 JP JP58122410A patent/JPS6015281A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62149495U (en) * | 1986-03-14 | 1987-09-21 | ||
| JP2011255736A (en) * | 2010-06-07 | 2011-12-22 | Universal Shipbuilding Corp | Vessel |
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