CN107600305A - Triple c-type stems for ocean engineering class ship - Google Patents
Triple c-type stems for ocean engineering class ship Download PDFInfo
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- CN107600305A CN107600305A CN201710795425.XA CN201710795425A CN107600305A CN 107600305 A CN107600305 A CN 107600305A CN 201710795425 A CN201710795425 A CN 201710795425A CN 107600305 A CN107600305 A CN 107600305A
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- 230000011218 segmentation Effects 0.000 claims abstract description 14
- 210000001217 buttock Anatomy 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007654 immersion Methods 0.000 abstract description 4
- 239000003651 drinking water Substances 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The present invention relates to the Triple c-type stems for ocean engineering class ship.Including stem, leading portion, back segment, segmentation waterline, the flare section on leading portion top, the design segments of preceding pars infrasegmentalis and preceding prominent bench-type bulb bow structure etc..It is mainly characterized by：The waterline of each height is respectively provided with larger richness, and for half immersion angle close to 90 ° from top view, shape is similar to " C " shape；Each ship body lines of stem front end half also has very big richness, and from front view, shape is similar to " C " shape；Buttocks observes its shape on side view and is also similar to " C " shape in the bench-type bulb bow of design segments simultaneously, so being named as " Triple C " stems.The engineering equipments such as the present invention can facilitate arrangement bow to load, bow side pushes away, all-direction propeller, and it can also increase effective captain, improve wide-bodied ship bow bilge whirlpool, improve the effect of the speed of a ship or plane, while effectively hull centre of buoyancy can move forward, ship bow degree of tilt is reduced, optimizes hull floading condition.
Description
Technical field
The invention belongs to Naval Architecture and Ocean Engineering technical field, and in particular to the Triple-C for ocean engineering class ship
Type stem.
Background technology
Navigation floading condition not only affect ship running ability, stationkeeping ability, loading safety also to ship etc. it is crucial because
It is known as particularly important influence.Using shuttle tanker, drill ship be representative ocean engineering class ship due to by such as bow fill
The influence of the engineer equipments such as loading system, dynamic positioning system and moon pool arrangement all has more serious trim by head mostly.
With persistently dropping for global oil price, how while engineering, the security of ocean engineering class ship is ensured to optimize its boat
Row floading condition, rapidity is improved, cut operating costs a problem for just becoming pendulum in face of shipowner, shipyard and operator.
The content of the invention
The technical problems to be solved by the invention are to provide the Triple-C type stems for ocean engineering class ship, not only
The speed of a ship or plane can be improved, reduces operation cost, and effectively hull centre of buoyancy can move forward, reduces ship bow degree of tilt, optimization
Hull floading condition.
In order to solve the above technical problems, the present invention is provided to the Triple-C type stems of ocean engineering class ship, including
Stem, stem are divided into leading portion and back segment two parts in captain direction, and leading portion is divided into flare section by height for H segmentation waterline
And design segments, the hull outer surface of flare section are obtained from segmentation waterline to deck side line fairing transition, flare section and design segments it
Between segmentation waterline at flex point and Curvature varying be present, design segments front end has a bench-type bulb bow, the bow of bench-type bulb bow
Buttocks, the waterline of segmentation waterline and each height of bow, the ship body lines of bow front end half and half are respectively from side view, top view in portion
Be in " C " shape from the point of view of orthographic projection, therefore by the present invention bow design be named as " Triple-C " stem.Bow front end is horizontal
Hatching line top included angle A 1 is 65-90 °, and bottom included angle A 2 is 60-90, and vertical section height L1 is 0-0.3 times of scantling draft T
Further, the length ratio of the leading portion and back segment is wanted by ship type, the speed of a ship or plane, Block Coefficient, equipment arrangement, hull position
The parameter such as ask to determine that scope is 2:1 to 1:Between 4.
Further, the bench-type bulb bow is in preceding prominent bench-type, and volume richness is between 0.6 to 0.9.
Further, described segmentation waterline height H is 0.9-1.25 times of scantling draft height T.
Further, preferred 80-90 ° of bow front end body lines top included angle A 1；Preferred 75-90 ° of bottom included angle A 2；
Vertical section height L1 is preferably 0.2-0.25 times of scantling draft T.
Using after such foreship design can conveniently arrangement bow loads, bow side pushes away, the engineering equipment such as all-direction propeller,
And can also there is the effective captain of increase, improve ocean engineering class ship bow bilge whirlpool, improve the effect of the speed of a ship or plane, while the stem
The displacement of hull entrance front end can be significantly increased in form, and effectively hull centre of buoyancy moves forward, and reduce ship bow degree of tilt,
Optimize hull floading condition.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is 45 ° of oblique views of bow form of the present invention.
Fig. 2 is bow form side view of the present invention.
Fig. 3 is bow form top view of the present invention.
Fig. 4 is the ship body plan of bow form half of the present invention.
Fig. 5 is ball bow front end body plan of the present invention.
Embodiment
The Triple-C type stems for ocean engineering class ship involved in the present invention are done in detail referring to the drawings
Explanation.
Fig. 1 show 45 ° of oblique views of bow form of the present invention.It is described based on the factor such as rapidity and equipment arrangement
Stem 1 has been divided into leading portion 2 and the two parts of back segment 3, segmentation waterline 4 quilt of the leading portion 2 by a height for H in captain direction
It is divided into flare section 5 and design segments 6, the hull outer surface of the flare section 5 is from segmentation waterline 4 to the fairing of deck side line 11
Cross to obtain, be not complete geometric smoothness transition connection between flare section 5 and design segments 6, but exist at segmentation waterline 4 and turn
Point and Curvature varying.The design segments 6 are dashed forward before front end is with one and the very plentiful structure of bench-type bulb bow 7, before bow
More flat and width is bigger for holding bulb bow type bow design more traditional at bulb bow, and volume richness is 0.6 to 0.9
Between, therefore can realize that bow arranges multiple all-direction propellers and the dynamic positioning scheme that bow side pushes away, and width can reduced
Hull longitudinal center on buoyancy can be farthest adjusted while body ship's navigation bilge whirlpool, reduces trim by head.
Fig. 2 to Fig. 4 represents side view, top view and the main view of the Triple-C stems for ocean engineering ship respectively
Figure.The segmentation waterline 4 for being highly H is through the horizontal hatching line of the whole leading portion 2, has larger richness, half immersion angle
For 90 ° or close to 90 °, from top view, shape is similar to " C " shape；The waterline 8 of each height is respectively provided with larger plentiful
Degree, for half immersion angle close to 90 ° from top view, shape is similar to " C " shape；And the ship body lines 9 of bow front end half and half also has
There is very big richness, from front view, shape is similar to " C " shape；Buttocks 10 is in side in the stem of the design segments 6
Its shape is observed on view and is also similar to " C " shape, therefore the bow design of the present invention is named as " Triple-C " stem.These lines
Bar has done overstriking processing in Fig. 2 to 4, and the shape that emphasis shows these lines is in " C " shape.
As shown in figure 5, to improve floading condition and improving the assurance balanced between the speed of a ship or plane, bow front end body lines top included angle A 1 is
65-90 °, preferably 80-90 °；Bottom included angle A 2 is 60-90 °, preferably 75-90 °；Vertical section height L1 be scantling draft T 0-
0.3 times, preferably 0.2-0.25 times.
The leading portion 2 of stem 1 and the length ratio of back segment 3 are wanted by ship type, the speed of a ship or plane, Block Coefficient, equipment arrangement, hull position
The parameter such as ask to determine that scope is 2:1 to 1:Between 4.
Ship Structure drinking water height T should be close or larger than by splitting the height H of waterline.Usually, waterline height H is split for knot
0.9-1.25 times of structure drinking water height T.
Each change in shape of height waterline 8 is little, and good drag-reduction effect can be played for each drinking water operating mode of ship, right
Operation cost under the actual operation operating mode of reduction ship has to help well.
To further appreciate that the present invention, in the following description by taking certain shuttle tanker bow molded line as an example in the present invention
Appearance is described in detail.Obviously, execution of the invention is not limited to the specific details that those skilled in the art is familiar with.
The preference of the present invention is described in detail as follows, but in addition to these descriptions, the present invention can also have other embodiment party
Formula and applicable ship type.
In the case of design speed 14.5kn, on the premise of identical displacement is ensured, by shuttle tanker lash ship type side
The ordinary straight bow of case replaces with the Triple-C type stems for ocean engineering class ship of the present invention, and centre of buoyancy moves forward after replacement
1.4m（Lpp=265m）, the problem of lash ship type trim by head is serious is efficiently solved, and bow space broadens, and also meets well
The arrangement of 3 propellers of bow, after optimizing to bow molded line, CFD result of calculations show, the stem is in scantling draft and ballast
Average drop resistance 5.7% under two operating modes is absorbed water, energy-saving effect is obvious, has good market popularization value.
In the embodiment of the shuttle tanker, stem total length is 48m, and the length ratio of leading portion and back segment is 1:1, segmentation
Waterline is highly 14.1m, and scantling draft 15m slightly above splits waterline, and half immersion angle of designed water line is 90 °.Take in bulb bow
Between body lines at length as typical body lines, L1 is about 1/5 on body lines drinking water, included angle A 1 is 85 °, and A2 is 80 °.
Using after such foreship design can conveniently arrangement bow loads, bow side pushes away, the engineering equipment such as all-direction propeller,
And can also there is the effective captain of increase, improve wide-bodied ship bow bilge whirlpool, improve the effect of the speed of a ship or plane.The stem form energy simultaneously
The displacement of hull entrance front end is enough significantly increased, effectively hull centre of buoyancy moves forward, reduces ship bow degree of tilt, optimizes ship
Body floading condition.
The embodiment of the present invention is described in detail above, but it is intended only as example, and the present invention is not
It is limited to the embodiment of description.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
Substitute also all among scope of the invention.Therefore, the impartial conversion done in the case where not departing from this patent spirit and scope and repair
Change, should all cover in the range of this patent.This patent is claimed scope and defined by appended claims and equivalent.
Claims (5)
1. for the Triple-C type stems of ocean engineering class ship, including stem（1）, stem（1）It is divided into captain direction
Leading portion（2）And back segment（3）Two parts, the leading portion（2）By the segmentation waterline that height is H（4）It is divided into flare section（5）And design
Section（6）, it is characterised in that flare section（5）And design segments（6）Between segmentation waterline（4）Flex point and Curvature varying be present in place；Institute
State design segments（6）Front end has a bench-type bulb bow（7）, bench-type bulb bow（7）Bow in buttocks（10）, segmentation waterline
（4）And the waterline of each height of bow（8）, the ship body lines of bow front end half and half（9）Thrown respectively from side view, top view and front view
It is in " C " shape from the point of view of shadow；Bow front end body lines top included angle A 1 is 65-90 °, and bottom included angle A 2 is 60-90 °, and vertical section is high
Spend 0-0.3 times that L1 is scantling draft height T.
2. the Triple-C type stems according to claim 1 for ocean engineering class ship, it is characterised in that before described
Section（2）And back segment（3）Length ratio 2:1 to 1:Between 4.
3. the Triple-C type stems according to claim 1 for ocean engineering class ship, it is characterised in that described
Type bulb bow（7）In preceding prominent bench-type, volume richness is between 0.6 to 0.9.
4. the Triple-C type stems according to claim 1 for ocean engineering class ship, it is characterised in that described
Split waterline（4）Height H is 0.9-1.25 times of scantling draft height T.
5. the Triple-C type stems according to claim 1 for ocean engineering class ship, it is characterised in that the bow
Preferred 80-90 ° of portion front end body lines top included angle A 1；Preferred 75-90 ° of bottom included angle A 2；Vertical section height L1 is preferably structure
Absorb water height T 0.2-0.25 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795425.XA CN107600305A (en) | 2017-09-06 | 2017-09-06 | Triple c-type stems for ocean engineering class ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795425.XA CN107600305A (en) | 2017-09-06 | 2017-09-06 | Triple c-type stems for ocean engineering class ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107600305A true CN107600305A (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710795425.XA Pending CN107600305A (en) | 2017-09-06 | 2017-09-06 | Triple c-type stems for ocean engineering class ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550142A (en) * | 2019-04-30 | 2019-12-10 | 上海外高桥造船有限公司 | Hull line type of large liquefied gas carrier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621309A (en) * | 2003-11-28 | 2005-06-01 | 住友重机械工业株式会社 | Ship |
| JP2012017089A (en) * | 2010-06-10 | 2012-01-26 | Ihi Corp | Bow shape and ship |
| CN203228913U (en) * | 2013-03-11 | 2013-10-09 | 韩通（上海）新能源船舶设计研发有限公司 | Collision protection bulbous bow device |
| CN104890809A (en) * | 2015-06-05 | 2015-09-09 | 中国船舶工业集团公司第七〇八研究所 | Novel bulbous bow with multi-draught resistance |
| CN104890805A (en) * | 2014-03-03 | 2015-09-09 | 中集船舶海洋工程设计研究院有限公司 | Ship |
| CN207389452U (en) * | 2017-09-06 | 2018-05-22 | 中远海运重工有限公司 | A kind of Triple-C type stems for ocean engineering class ship |
-
2017
- 2017-09-06 CN CN201710795425.XA patent/CN107600305A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621309A (en) * | 2003-11-28 | 2005-06-01 | 住友重机械工业株式会社 | Ship |
| JP2012017089A (en) * | 2010-06-10 | 2012-01-26 | Ihi Corp | Bow shape and ship |
| CN203228913U (en) * | 2013-03-11 | 2013-10-09 | 韩通（上海）新能源船舶设计研发有限公司 | Collision protection bulbous bow device |
| CN104890805A (en) * | 2014-03-03 | 2015-09-09 | 中集船舶海洋工程设计研究院有限公司 | Ship |
| CN104890809A (en) * | 2015-06-05 | 2015-09-09 | 中国船舶工业集团公司第七〇八研究所 | Novel bulbous bow with multi-draught resistance |
| CN207389452U (en) * | 2017-09-06 | 2018-05-22 | 中远海运重工有限公司 | A kind of Triple-C type stems for ocean engineering class ship |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550142A (en) * | 2019-04-30 | 2019-12-10 | 上海外高桥造船有限公司 | Hull line type of large liquefied gas carrier |
| CN110550142B (en) * | 2019-04-30 | 2021-04-27 | 上海外高桥造船有限公司 | Hull line type of large liquefied gas carrier |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |