CN207389452U - A kind of Triple-C type stems for ocean engineering class ship - Google Patents
A kind of Triple-C type stems for ocean engineering class ship Download PDFInfo
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- CN207389452U CN207389452U CN201721136628.XU CN201721136628U CN207389452U CN 207389452 U CN207389452 U CN 207389452U CN 201721136628 U CN201721136628 U CN 201721136628U CN 207389452 U CN207389452 U CN 207389452U
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Abstract
The utility model is related to a kind of 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 half ship body lines of stem front end 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 " stem.The engineering equipments such as the utility model can facilitate arrangement bow to load, bow side pushes away, all-direction propeller, and it can also increase effective captain, improve wide-bodied ship fore body 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 utility model belongs to Naval Architecture and Ocean Engineering technical field, and in particular to a kind of for ocean engineering class ship
Triple-C type stems.
Background technology
Navigation floading condition not only affect the running ability of ship, 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 be subject to such as bow dress
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 improves rapidity, and cut operating costs a problem for just becoming pendulum in face of shipowner, shipyard and operator.
The content of the invention
The technical problem to be solved by the utility model is to provide a kind of Triple-C types for ocean engineering class ship
Stem can not only improve the speed of a ship or plane, reduce operation cost, and effectively hull centre of buoyancy can move forward, and reduce ship trim by head
Angle optimizes hull floading condition.
In order to solve the above technical problems, the utility model provides a kind of Triple-C type ships for ocean engineering class ship
Bow, including stem, stem is divided into leading portion and back segment two parts in captain direction, and leading portion is divided by height for the segmentation waterline of H
For flare section and design segments, the hull outer surface of flare section is obtained from segmentation waterline to deck side line fairing transition, flare section and
There are inflection point and Curvature varying at segmentation waterline between design segments, there are one bench-type bulb bow, bench-type balls for design segments front end tool
Buttocks, the waterline of segmentation waterline and each height of fore body, the fifty-fifty ship body lines in fore body front end are respectively from side view in the fore body of nose bow
In " C " shape from the point of view of figure, top view and orthographic projection, therefore the fore body design of the utility model is named as " Triple-C " ship
Bow.Fore body front end body lines top included angle A 1 is 65-90 °, and lower part included angle A 2 is 60-90, and vertical section height L1 is scantling draft T
0-0.3 times
Further, the length ratio of the leading portion and back segment is by ship type, the speed of a ship or plane, Block Coefficient, equipment arrangement, centre of buoyancy position
It puts the parameters such as requirement and determines 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, 1 preferred 80-90 ° of fore body front end body lines top included angle A；2 preferred 75-90 ° of lower part included angle A；
Vertical section height L1 is preferably 0.2-0.25 times of scantling draft T.
Arrangement bow loads, bow side pushes away, the engineering equipments such as all-direction propeller using can facilitate after such foreship design,
And can also have increases effective captain, improves ocean engineering class ship fore body bilge whirlpool, improves 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.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is 45 ° of oblique views of fore body form described in the utility model.
Fig. 2 is fore body form side view described in the utility model.
Fig. 3 is fore body form top view described in the utility model.
Fig. 4 is half ship body plan of fore body form described in the utility model.
Fig. 5 is ball bow front end body plan described in the utility model.
Specific embodiment
Referring to the drawings to a kind of Triple-C type ships for ocean engineering class ship involved by the utility model
Bow is described in detail.
Fig. 1 show 45 ° of oblique views of fore body form described in the utility model.Factors are arranged etc. based on rapidity and equipment,
The stem 1 has been divided into 3 two parts of leading portion 2 and back segment in captain direction, and the leading portion 2 is the segmentation water of H by a height
Line 4 is divided into flare section 5 and design segments 6, and the hull outer surface of the flare section 5 is from segmentation waterline 4 to deck side line 11
Fairing transition obtains, and is not complete geometric smoothness transition connection between flare section 5 and design segments 6, but at segmentation waterline 4
There are inflection points and Curvature varying.The design segments 6 have in front end there are one preceding prominent and very plentiful 7 structure of bench-type bulb bow,
More flat and width bigger, volume richness exist for the design of more traditional bulb bow type fore body at the bulb bow of fore body front end
Between 0.6 to 0.9, therefore it can realize that fore body arranges multiple all-direction propellers and the dynamic positioning scheme that bow side pushes away, and can
Hull longitudinal center on buoyancy can be farthest adjusted while wide-bodied ship navigation bilge whirlpool is reduced, reduces trim by head.
Fig. 2 to Fig. 4 represents a kind of side view, top view and the master of the Triple-C stems for ocean engineering ship respectively
View.The segmentation waterline 4 for being highly H is through the horizontal hatching line of the entire leading portion 2, has larger richness, partly enters water
Angle is for 90 ° or close to 90 °, and from top view, shape is similar to " C " shape；The waterline 8 of each height is respectively provided with larger rich
Full scale, for half immersion angle close to 90 ° from top view, shape is similar to " C " shape；And the fifty-fifty ship body lines 9 in fore body front end
With very big richness, from front view, shape is similar to " C " shape；Buttocks 10 exists in the stem of the design segments 6
Its shape is observed on side view and is also similar to " C " shape, therefore the fore body design of the utility model is named as " Triple-C " stem.
These lines have 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, fore body front end body lines top included angle A 1 is
65-90 °, preferably 80-90 °；Lower part 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 parameters 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 8 change in shape of height waterline 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 utility model, in the following description to this practicality by taking certain shuttle tanker fore body molded line as an example
New content is described in detail.Obviously, it is ripe to be not limited to those skilled in the art institute for the execution of the utility model
The specific details of habit.One preference of the utility model is described in detail as follows, however in addition to these descriptions, the utility model
Can also have other embodiment 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 a kind of Triple-C type stems for ocean engineering class ship of the utility model, is floated after replacement
Heart Forward 1.4m（Lpp=265m）, efficiently solve the problems, such as that lash ship type trim by head is serious, and fore body space broadens, also well
The arrangement of 3 propellers of fore body is met, after optimizing to fore body molded line, CFD result of calculations show the stem in scantling draft
With averagely drop resistance 5.7% under two operating modes of ballast draft, energy-saving effect is apparent, 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 height is 14.1m, and scantling draft 15m slightly above splits waterline, and half immersion angle of designed water line is 90 °.It takes 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 °.
Arrangement bow loads, bow side pushes away, the engineering equipments such as all-direction propeller using can facilitate after such foreship design,
And can also have increases effective captain, improves wide-bodied ship fore body bilge whirlpool, improves 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.
Specific embodiment of the present utility model is described in detail above, but it is intended only as example, this practicality
The new specific embodiment for being not restricted to description.To those skilled in the art, it is any that the utility model is carried out
Equivalent modifications and substitute also all among the scope of the utility model.Therefore, the institute in the case where not departing from this patent spirit and scope
The impartial conversion made and modification should all be covered in the range of this patent.Scope is claimed in this patent will by appended right
Book and equivalent is asked to define.
Claims (5)
1. a kind of Triple-C type stems for ocean engineering class ship, including stem（1）, stem（1）In captain direction quilt
It is divided into 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）With
Design segments（6）, which is characterized in that flare section（5）And design segments（6）Between segmentation waterline（4）There are inflection points and curvature change at place
Change；The design segments（6）There are one bench-type bulb bows for front end tool（7）, bench-type bulb bow（7）Fore body in buttocks（10）, point
Cut waterline（4）And the waterline of each height of fore body（8）, the fifty-fifty ship body lines in fore body front end（9）Respectively from side view, top view and just
It is in " C " shape from the point of view of view projections；Fore body front end body lines top included angle A 1 is 65-90 °, and lower part included angle A 2 is 60-90 °, is hung down
Straight section height L1 is 0-0.3 times of scantling draft height T.
A kind of 2. Triple-C type stems for ocean engineering class ship according to claim 1, which is characterized in that institute
State leading portion（2）And back segment（3）Length ratio 2:1 to 1:Between 4.
A kind of 3. Triple-C type stems for ocean engineering class ship according to claim 1, which is characterized in that institute
State bench-type bulb bow（7）In preceding prominent bench-type, volume richness is between 0.6 to 0.9.
A kind of 4. Triple-C type stems for ocean engineering class ship according to claim 1, which is characterized in that institute
The segmentation waterline stated（4）Height H is 0.9-1.25 times of scantling draft height T.
A kind of 5. Triple-C type stems for ocean engineering class ship according to claim 1, which is characterized in that institute
State 1 preferred 80-90 ° of fore body front end body lines top included angle A；2 preferred 75-90 ° of lower part included angle A；Vertical section height L1 is preferably
0.2-0.25 times of scantling draft height T.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136628.XU CN207389452U (en) | 2017-09-06 | 2017-09-06 | A kind of Triple-C type stems for ocean engineering class ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721136628.XU CN207389452U (en) | 2017-09-06 | 2017-09-06 | A kind of Triple-C type stems for ocean engineering class ship |
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| CN207389452U true CN207389452U (en) | 2018-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600305A (en) * | 2017-09-06 | 2018-01-19 | 中远海运重工有限公司 | Triple c-type stems for ocean engineering class ship |
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- 2017-09-06 CN CN201721136628.XU patent/CN207389452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600305A (en) * | 2017-09-06 | 2018-01-19 | 中远海运重工有限公司 | Triple c-type stems for ocean engineering class ship |
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