CN103921892A - Novel ship bow - Google Patents
Novel ship bow Download PDFInfo
- Publication number
- CN103921892A CN103921892A CN201410165970.7A CN201410165970A CN103921892A CN 103921892 A CN103921892 A CN 103921892A CN 201410165970 A CN201410165970 A CN 201410165970A CN 103921892 A CN103921892 A CN 103921892A
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- CN
- China
- Prior art keywords
- water line
- design load
- load water
- baseline
- stem
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- 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.)
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- 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
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a novel ship bow which is provided with a designed waterline and a base line. The longitudinal length of the portion, located below the base line, of the ship bow is a and a is larger than 0.2 m. The maximum perpendicular distance of the portion, located below the base line, of the ship bow is b and b is larger than 0. The ship bow comprises an upper deck. The length of the upper deck is smaller than that of the designed waterline. The volume of displacement on the portion of the ship bow is increased, so that the volume of displacement is evenly distributed in the length direction of a ship, the whole designed waterline is made to be thin, and wave-making resistance is reduced in navigation.
Description
Technical field
The invention belongs to ship design field, be specially a kind of new bow.
Background technology
In recent years, along with global warming, rough weather obviously increases, energy-saving and emission-reduction and promotion environmental protection become national governments and the closely problem of concern of people, at shipbuilding industry, also be that so the resistance that existing high speed vessel overcomes in navigation process is larger, this has been increased to the energy resource consumption of boats and ships for the demand of energy-saving and emission-reduction.
Known ground, the resistance when shape of boats and ships bow directly has influence on ship's navigation; Wherein, design load water line head end shape has considerable influence to wave making resistance, during for guarantee ship's navigation, obtains lower resistance, and design load water line head end should be very thin.Usually, for low powered, it is less that wave making resistance accounts for total drag proportion, considers the other factorses such as load carrying ability, and boats and ships head end is difficult for taper, therefore in the time that Fu Rude counts Fr < 0.16, design load water line head end is shaped as convex; In the time of 0.16 < Fr < 0.20, design load water line head end is shaped as dimpling shape or linear pattern; In the time of 0.20 < Fr < 0.22, design load water line head end is shaped as linear pattern or slightly concave; The increase of counting Fr along with Fu Rude, cause that wave making length increases, do not have no progeny and move in its higher-pressure region, reducing wave making resistance must make head end design load water line flex point move backward, therefore, for the moderate powered of 0.22 < Fr < 0.32, design load water line head end shape adopts mitigation spill more.For high speed vessel, wave making resistance has accounted for the major part of total drag, because wave making higher-pressure region has expanded in nearly ship, for reducing wave making resistance, wish that whole design load water line forebody is very thin, therefore, in the time of Fr > 0.32, design load water line head end shape adopts even dimpling shape of straight line more.
In addition, ships and light boats of the prior art navigate by water in the time of transition type state, when 0.40 < Fr < 1.00, except wave making phenomenon, also there will be obvious splash phenomena.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of new bow.
Technological means of the present invention is as follows:
A kind of new bow, has design load water line and baseline on described stem; The longitudinal length that described stem is positioned at the following part of baseline is a, wherein 0.2 meter of a >; The vertical distance of maximum that described stem is positioned at the following part of baseline is b, wherein b > 0;
Further, a < 0.5*L, wherein a is the described stem longitudinal length that is positioned at the following part of baseline, the longitudinal length that L is design load water line;
Further, b < 2*d, wherein b is that the vertical distance of maximum, d that described stem is positioned at the following part of baseline are the distance of described baseline to described design load water line;
Further, described stem comprises upper deck, and this upper deck length is less than length on designed waterline;
Further, described upper deck is c with described design load water line fore-and-aft distance foremost foremost, 0 < c < 0.4*L, the longitudinal length that L is design load water line;
Further, described design load water line front end has two interior recesses, and two described interior recesses are along the axis symmetry of design load water line, and in each, recess both sides are distributed with respectively two flex points;
Further, connecting the straight line of two flex points and the ultimate range of this interior recess that in each, recess both sides distribute is e, wherein 0 < e < 0.25*B, the maximum width that B is design load water line.
A kind of new bow provided by the invention, tool has the following advantages compared with the stem of prior art:
1, on stem of the present invention, there is design load water line and baseline; The longitudinal length that described stem is positioned at the following part of baseline is a, wherein 0.2 meter of a >; The vertical distance of maximum that described stem is positioned at the following part of baseline is b, wherein b > 0; And then increased the displacement of volume at stem place, and be conducive to displacement of volume being uniformly distributed of captain's direction, make whole piece design load water line very thin, the wave making resistance while being conducive to reduce navigation.
2, upper deck length of the present invention is less than length on designed waterline, the part that stem is positioned at more than design load water line is from bottom to top to the shape of ship rear-inclined, be conducive to reduce the spray resistance while navigation at a high speed the splash phenomena when weakening or eliminating high speed and navigate by water.
3, the present invention shows by Numerical simulation results, and described stem resistance-reducing yield can reach 3～10%, reach ship energy saving reduce discharging object, fall resistance energy-saving effect obvious, there is good business and military use.
4, design of the present invention and build process simple, be suitable for ship design field and extensively promote.
Brief description of the drawings
Fig. 1 is the center buttock figure of stem of the present invention;
Fig. 2 is the birds-eye view of design load water line of the present invention.
In figure: 1, stem, 2, design load water line, 3, baseline, 4, upper deck, 21, flex point, 22, interior recess.
Detailed description of the invention
A kind of new bow as depicted in figs. 1 and 2, has design load water line 2 and baseline 3 on described stem 1; The longitudinal length that described stem 1 is positioned at baseline part below 3 is a, wherein 0.2 meter of a >; The vertical distance of maximum that described stem 1 is positioned at baseline part below 3 is b, wherein b > 0; Further, a < 0.5*L, wherein a be described stem 1 be positioned at baseline below 3 part longitudinal length, L be the longitudinal length of design load water line 2; Further, b < 2*d, wherein b be described stem 1 be positioned at baseline below 3 part the vertical distance of maximum, d be the distance of described baseline 3 to described design load water line 2; Further, described stem 1 comprises upper deck 4, and these upper deck 4 length are less than design load water line 2 length; Further, described upper deck 4 is c with described design load water line 2 fore-and-aft distance foremost foremost, 0 < c < 0.4*L, and L is the longitudinal length of design load water line 2; Further, described design load water line 2 front ends have the axis symmetry of 22, two described interior recesses 22 of two interior recesses along design load water line 2, and in each, recess 22 both sides are distributed with respectively two flex points 21; Further, connecting the straight line of two flex points 21 and the ultimate range of this interior recess 22 that in each, recess 22 both sides distribute is e, wherein 0 < e < 0.25*B, and B is the maximum width of design load water line 2.
A kind of new bow provided by the invention, tool has the following advantages compared with the stem of prior art:
1, on stem of the present invention, there is design load water line and baseline; The longitudinal length that described stem is positioned at the following part of baseline is a, wherein 0.2 meter of a >; The vertical distance of maximum that described stem is positioned at the following part of baseline is b, wherein b > 0; And then increased the displacement of volume at stem place, and be conducive to displacement of volume being uniformly distributed of captain's direction, make whole piece design load water line very thin, the wave making resistance while being conducive to reduce navigation; Further, described stem is positioned at the longitudinal length a < 0.5*L of the following part of baseline, and described stem is positioned at the vertical distance b < 2*d of maximum of the following part of baseline; Further, described design load water line front end has two interior recesses, two described interior recesses are along the axis symmetry of design load water line, in each, recess both sides are distributed with respectively two flex points, connecting the straight line of two flex points and the ultimate range of this interior recess that in each, recess both sides distribute is e, wherein 0 < e < 0.25*B, the maximum width that B is design load water line, and then the shape of restriction stem, ensure that design load water line is very thinner in whole stem wave making higher-pressure region.
2, upper deck length of the present invention is less than length on designed waterline, the part that stem is positioned at more than design load water line is from bottom to top to the shape of ship rear-inclined, be conducive to reduce the spray resistance while navigation at a high speed the splash phenomena when weakening or eliminating high speed and navigate by water.
3, the present invention shows by Numerical simulation results, and described stem resistance-reducing yield can reach 3～10%, reach ship energy saving reduce discharging object, fall resistance energy-saving effect obvious, there is good business and military use.
4, design of the present invention and build process simple, be suitable for ship design field and extensively promote.
What the present invention adopted is boats and ships technical terms, is laterally wherein the direction along ship port and starboard, is longitudinally the direction along bow tail, and vertical is vertical direction, the maximum transversal spacing that the maximum width B of design load water line is design load water line.
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a new bow, is characterized in that: on described stem (1), have design load water line (2) and baseline (3); The longitudinal length that described stem (1) is positioned at the following part of baseline (3) is a, wherein 0.2 meter of a >; The vertical distance of maximum that described stem (1) is positioned at the following part of baseline (3) is b, wherein b > 0.
2. a kind of new bow according to claim 1, it is characterized in that a < 0.5*L, wherein a is that longitudinal length, L that described stem (1) is positioned at the following part of baseline (3) are the longitudinal length of design load water line (2).
3. a kind of new bow according to claim 1, it is characterized in that b < 2*d, wherein b is that the vertical distance of maximum, d that described stem (1) is positioned at the following part of baseline (3) are the distance of described baseline (3) to described design load water line (2).
4. a kind of new bow according to claim 1, is characterized in that described stem (1) comprises upper deck (4), and this upper deck (4) length is less than design load water line (2) length.
5. a kind of new bow according to claim 4, it is characterized in that described upper deck (4) is c with described design load water line (2) fore-and-aft distance foremost foremost, 0 < c < 0.4*L, L is the longitudinal length of design load water line (2).
6. a kind of new bow according to claim 1, it is characterized in that described design load water line (2) front end has two interior recesses (22), two described interior recesses (22) are along the axis symmetry of design load water line (2), and in each, recess (22) both sides are distributed with respectively two flex points (21).
7. a kind of new bow according to claim 6, it is characterized in that connecting the straight line of two flex points (21) and the ultimate range of this interior recess (22) that in each, recess (22) both sides distribute is e, wherein 0 < e < 0.25*B, B is the maximum width of design load water line (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165970.7A CN103921892A (en) | 2014-04-23 | 2014-04-23 | Novel ship bow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165970.7A CN103921892A (en) | 2014-04-23 | 2014-04-23 | Novel ship bow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103921892A true CN103921892A (en) | 2014-07-16 |
Family
ID=51140346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410165970.7A Pending CN103921892A (en) | 2014-04-23 | 2014-04-23 | Novel ship bow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103921892A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528628A (en) * | 2018-03-26 | 2018-09-14 | 珠海云洲智能科技有限公司 | A kind of surveying vessel |
| RU2672227C1 (en) * | 2017-12-07 | 2018-11-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2672225C1 (en) * | 2017-12-07 | 2018-11-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2682385C1 (en) * | 2017-12-25 | 2019-03-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2685369C1 (en) * | 2018-04-13 | 2019-04-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2690642C1 (en) * | 2018-06-27 | 2019-06-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Forward end of ship hull |
| RU2740325C2 (en) * | 2019-05-28 | 2021-01-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2743677C2 (en) * | 2019-07-09 | 2021-02-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2753031C1 (en) * | 2020-12-25 | 2021-08-11 | Олег Игоревич Братухин | Sea-going ice navigation vessel |
| RU2774987C1 (en) * | 2021-09-13 | 2022-06-24 | Олег Игоревич Братухин | Marine vessel |
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| GB191113506A (en) * | 1911-06-06 | 1911-09-07 | Lothar Von Koeppen | Improvements in or relating to Ships' Hulls. |
| JPS6234888A (en) * | 1985-08-07 | 1987-02-14 | Mitsui Eng & Shipbuild Co Ltd | Shape of bow |
| JP2000255477A (en) * | 1999-03-09 | 2000-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | Friction resistance reduced ship |
| CN101137536A (en) * | 2005-03-09 | 2008-03-05 | 乌尔斯泰恩设计公司 | A foreship arrangement for a vessel of the deplacement type |
| CN102407917A (en) * | 2011-10-18 | 2012-04-11 | 上海斯迪安船舶设计有限公司 | Outline of oceanographic engineering ship |
| CN202193169U (en) * | 2011-08-18 | 2012-04-18 | 东莞杰腾造船有限公司 | Egg-shaped ship bow |
| CN203888994U (en) * | 2014-04-23 | 2014-10-22 | 大连理工大学 | Novel ship bow |
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2014
- 2014-04-23 CN CN201410165970.7A patent/CN103921892A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191113506A (en) * | 1911-06-06 | 1911-09-07 | Lothar Von Koeppen | Improvements in or relating to Ships' Hulls. |
| JPS6234888A (en) * | 1985-08-07 | 1987-02-14 | Mitsui Eng & Shipbuild Co Ltd | Shape of bow |
| JP2000255477A (en) * | 1999-03-09 | 2000-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | Friction resistance reduced ship |
| CN101137536A (en) * | 2005-03-09 | 2008-03-05 | 乌尔斯泰恩设计公司 | A foreship arrangement for a vessel of the deplacement type |
| CN202193169U (en) * | 2011-08-18 | 2012-04-18 | 东莞杰腾造船有限公司 | Egg-shaped ship bow |
| CN102407917A (en) * | 2011-10-18 | 2012-04-11 | 上海斯迪安船舶设计有限公司 | Outline of oceanographic engineering ship |
| CN203888994U (en) * | 2014-04-23 | 2014-10-22 | 大连理工大学 | Novel ship bow |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2672227C1 (en) * | 2017-12-07 | 2018-11-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2672225C1 (en) * | 2017-12-07 | 2018-11-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2682385C1 (en) * | 2017-12-25 | 2019-03-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| CN108528628A (en) * | 2018-03-26 | 2018-09-14 | 珠海云洲智能科技有限公司 | A kind of surveying vessel |
| RU2685369C1 (en) * | 2018-04-13 | 2019-04-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2690642C1 (en) * | 2018-06-27 | 2019-06-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Forward end of ship hull |
| RU2740325C2 (en) * | 2019-05-28 | 2021-01-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2743677C2 (en) * | 2019-07-09 | 2021-02-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" | Ship hull |
| RU2753031C1 (en) * | 2020-12-25 | 2021-08-11 | Олег Игоревич Братухин | Sea-going ice navigation vessel |
| RU2774987C1 (en) * | 2021-09-13 | 2022-06-24 | Олег Игоревич Братухин | Marine vessel |
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Application publication date: 20140716 |