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CN102951261A - Method of forming a stern structure with asymmetrically twisted flow control fins - Google Patents

Method of forming a stern structure with asymmetrically twisted flow control fins Download PDF

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Publication number
CN102951261A
CN102951261A CN2012100979342A CN201210097934A CN102951261A CN 102951261 A CN102951261 A CN 102951261A CN 2012100979342 A CN2012100979342 A CN 2012100979342A CN 201210097934 A CN201210097934 A CN 201210097934A CN 102951261 A CN102951261 A CN 102951261A
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CN
China
Prior art keywords
stern
attachment
twisted
fluid flow
angle
Prior art date
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Pending
Application number
CN2012100979342A
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Chinese (zh)
Inventor
崔祯殷
金廷勋
郑锡湖
李相奉
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HD Hyundai Heavy Industries Co Ltd
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Hyundai Heavy Industries Co Ltd
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Filing date
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Application filed by Hyundai Heavy Industries Co Ltd filed Critical Hyundai Heavy Industries Co Ltd
Publication of CN102951261A publication Critical patent/CN102951261A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • 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
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/08—Shape of aft part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • B63H5/15—Nozzles, e.g. Kort-type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The present invention relates to a method of forming a stern structure with asymmetrically twisted flow control fins that enables uniform flow velocity distribution of incoming flow to a propeller and that enables reduction of the amount of energy loss caused by the rotating flow of the propeller wake while a ship is underway. The method comprises the following steps: preparing a plurality of stern attachments; modeling a fluid flow formed by a vessel being sailed; and determining attachment locations, dimensions, attachment angles and twist angles of the stern attachments capable of reducing an amount of energy loss of the vessel based on the modeled fluid flow, wherein at least some but not all of the stern attachments are attached at different locations, have different lengths, and have at least one of a twisted structure and an asymmetric cross-sectional structure, the twisted structure being twisted based on different rotational axes.

Description

Formation has the method for the stern construction of the asymmetric mobile control fin that reverses
Technical field
Present invention relates in general to form the method for the stern construction of the asymmetric mobile control fin that reverses of having of boats and ships, and relate more specifically to form a kind of like this method with stern construction of the asymmetric mobile control fin that reverses, this asymmetric mobile control fin that reverses can be realized when the angle of rake even velocity of flow that enters stream distributes and can be reduced in ship's navigation the amount of power loss that the rotary current by propeller wake (propeller wake) causes.
Background technology
Usually, by the propulsive force that is installed in the angle of rake rotation generation boats and ships in the stern.Propelling unit promotes water, and boats and ships move forward by the counteraction of propelling thrust.Yet, seawater flowing in angle of rake front and rear can not be direct current fully, but on the contrary in response to the rapid variation of the configuration of stern and form rotary current heterogeneous, wherein, this rotary current flow to this propelling unit and so that the speed ability of boats and ships and angle of rake cavitation erosion degradation.The rotary current of propeller wake also causes degradation of energy.Therefore, need such technology, this technology can realize distributing and minimizing the amount of power loss that the rotary current by propeller wake causes to the angle of rake even velocity of flow that enters stream.
Summary of the invention
Therefore, form the present invention in view of the problems referred to above that in correlation technique, occur, and the object of the invention is to propose the method that a kind of formation has the stern construction of the asymmetric mobile control fin that reverses, this asymmetric mobile control fin that reverses can be realized distributing and can minimizing the amount of power loss that the rotary current by propeller wake causes to the angle of rake even velocity of flow that enters stream.
To achieve these goals, according to an aspect of the present invention, provide a kind of formation to have the method for the stern construction of the asymmetric mobile control fin that reverses, the method comprises: prepare a plurality of stern attachments; The flow that is formed by navigable boats and ships is carried out modeling; And based on definite attachment location, size, attached angle and the windup-degree that can reduce the described stern attachment of amount of power loss of the flow of institute's modeling, the wherein at least a portion in these stern attachments but the non-diverse location place that all is attached at, has different length, and have at least a structure in torsion structure and the unsymmetrical section structure, described torsion structure reverses based on different rotation axiss.
In one embodiment, described stern attachment has described torsion structure and described unsymmetrical section structure.
In one embodiment, described flow being carried out modeling also can comprise: analyze energy-saving effect by the flow around the stern of simulating attached described stern attachment, propulsion unit and rudder.
In one embodiment, attachment location, size, attached angle and the windup-degree of determining described stern attachment also can comprise: select described stern attachment attachment location, size, attached angle and windup-degree the initial design value and simulate described flow, analyze thus the amount of institute's energy requirement; Design again attachment location, size, attached angle and the windup-degree of described stern attachment and simulate described flow based on analog result, analyze thus the amount of the energy that reduces; And from attachment location, size, attached angle and the windup-degree of described stern attachment design again and simulate the moulded dimension attachment of determining the described flow, determine full-scale stern attachment.
Disclosed technology can be reduced in the rotary current of wake of the propulsion unit that the operation of reason propulsion unit during the ship's navigation produces and the amount of power loss that causes in the present invention.
In addition, the present invention can realize when ship's navigation improving thus angle of rake cavitation erosion performance to the even velocity of flow that enters stream that is installed in the angle of rake blade surface in the stern.
Description of drawings
Following detailed description in conjunction with the drawings, above-mentioned and other purposes, feature and other advantages of the present invention will more clearly be understood, in the accompanying drawings:
Fig. 1 shows the block diagram according to the boats and ships of an embodiment of the invention;
Fig. 2 shows the stern of boats and ships shown in Figure 1 and the amplification stereogram of stern construction; And
Fig. 3 is the diagram of circuit of method that forms the stern construction with asymmetric mobile control fin that reverses of boats and ships as shown in Figure 1.
The specific embodiment
To illustrate in greater detail preferred implementation of the present invention now, the embodiment of preferred implementation is illustrated by accompanying drawing.
Be to describe the embodiment of structure of the present invention and/or function owing to only proposing the description of disclosed technology so that its purpose to be described, therefore should do not infer that the interest field of disclosed technology is limited by embodiment as herein described.That is to say, these embodiments can be made amendment in every way, and therefore it should be understood that the interest field of disclosed technology can comprise the equivalent that can implement technical spirit of the present invention.In addition, since the purpose that presents in conjunction with disclosed technology or advantage do not need the specific embodiment should realize the whole of these purposes and advantage or only one of them, should not infer that therefore the interest field of disclosed technology is by the purpose that presents and advantage restriction.
Simultaneously, the implication of term described herein should be explained as follows:
Term " first " and " second " only are used to an element and another element are distinguished, and the interest field of disclosed technology should not limited by these terms.For example, the first element can be designated as the second element, and the second element can be designated as the first element similarly.
When describing an element " connection " or " connection " to another element, this element can be connected directly or be connected to another element, but can have intermediary element between these two elements.On the other hand, when describing an element " directly connection " or " directly connection " to another element, be to be understood that between these two elements not have element.Simultaneously, describe the relation between these elements other statements (that is, " and ... between " and " be located immediately at ... between " or " being adjacent to ... " and " directly being adjacent to ... ") should be explained in an identical manner.
Should be understood that, singular references can comprise the plural number statement, as long as the content of these statements is obviously not different.In this application, " comprise " or the implication of " having " is intended to indicate attribute, quantification, step, process, element, parts and/or its combination, but not being intended to get rid of exists or is added with other attributes, quantification, step, process, element, parts and/or its combination.
The reference character (for example, a, b, c etc.) that relates to step is the order that is used and is not intended to describe for convenience of description step.If do not specifically describe particular order in context, then these steps can be with different occurring in sequence.That is to say, these steps can occur with particular order, can occur simultaneously, perhaps can be performed with the order of putting upside down.
If the employed whole terms of this paper are not differently limited, then these terms have the identical implication of term of usually understanding with disclosed technology those of ordinary skill in the field.It should be understood that the term that limits has the implication consistent with the implication of these terms in the correlation technique in universaling dictionary.If these terms are not limited in this application clearly, then these terms are not just analyzed as having formal implication ideally or excessively.
Fig. 1 shows the block diagram according to the boats and ships of an embodiment of the invention.Fig. 2 illustrates the stern of boats and ships shown in Figure 1 and the amplification stereogram of stern construction.
As depicted in figs. 1 and 2, boats and ships 100 have stern 110 and stern construction 120.
Stern 110 has propulsion unit 112 and rudder 114.Stern 110 is positioned at below the sea level when boats and ships 100 navigation, advances this boats and ships 100, and the control rotary current.In embodiments of the present invention, propulsion unit 112 can utilize propelling unit to implement.When boats and ships 100 navigation, propulsion unit 112 edges and the direction promotion seawater of the navigation opposite direction of boats and ships and the propulsive force of generation edge navigation direction.When producing propulsive force, because the rotation of propulsion unit 112 produces along the vortex rotary current of the hand of rotation of propulsion unit 112.This rotary current has unsymmetric structure based on the central axis of propulsion unit 112 in top, bottom, port side and starboard side, so that rotary current can cause a large amount of degradations of energy.
Stern construction 120 comprises a plurality of stern attachments 121,122,123,124 and cause the variation of the rotary current that is produced by propulsion unit 112, reduces thus the amount of power loss of generation when boats and ships 100 navigation.In one embodiment, can change spin intensity and flow velocity by a plurality of stern attachments 121 to 124, change thus the flow velocity that enters stream and fluid inlet angle to propulsion unit 11, the amount of power loss that occurs when being reduced in ship's navigation thus.
In order to weaken the rotating energy of the seawater that is produced by rotary current, at least a portion in a plurality of stern attachments 121 to 124 but non-ly all have different length and be attached at the diverse location place.At this and since rotary current usually on the quarter a plurality of positions around 110 produces along non-homogeneous direction with inhomogeneous size, therefore, the length of stern attachment 121 to 124 and attachment location can be considered on the quarter the rotary currents of generations around 110 and be determined.
In yet another embodiment of the present invention, stern attachment 121 to 124 can be constructed with identical or different length.
In addition, in this embodiment, each in a plurality of stern attachments 121 to 124 all is constructed with at least a structure in torsion structure and the unsymmetrical section structure, and described torsion structure reverses based on different rotation axiss.When rotary current flowed along torsion structure or unsymmetrical section structure, the above-mentioned structure of corresponding stern attachment can weaken or offset this rotary current, so that the direction of rotary current can be changed into the initial flow direction of seawater, reduces thus amount of power loss.
In one embodiment, a plurality of stern attachments 121 to 124 can have different length and can be attached at the diverse location place, and the torsion structure that can be constructed with the unsymmetrical section structure and reverse based on the different rotary axis.
Fig. 3 is the diagram of circuit of method that forms the stern construction with asymmetric mobile control fin that reverses of boats and ships shown in Figure 1.
As shown in Figure 3, before installation ship stern construction 120, the initial designs (S210) of preparation stern attachment 121 to 124.
Come the requirement (S220) of predict energy by navigable boats and ships 100 formed seawater streams (being called hereinafter, " fluid ") by simulation.At this, flow can comprise by a plurality of stern attachments 121 to 124 and the rotary current that formed by propulsion unit 112.
The improvement of the initial design (S210) of stern attachment 121 to 124 realizes by the attachment location, size, attached angle and the windup-degree that change stern attachment 121 to 124, determines that thus first improves design (S230).
Simulation improves the flow that design (S230) obtains by first of stern attachment 121 to 124, analyzes thus energy-saving effect (S240).
The analysis showed that first when improving design and being not suitable for this purpose when energy-conservation, determine that second of stern attachment 121 to 124 improved design (S230), and simulate second and improve the flow of design to analyze energy-saving effect (S240).The analysis showed that second when improving design and being not suitable for this purpose when energy-conservation, repeat said process (S250).
When determined by the above-mentioned repetitive process of wherein predicting and analyze the feature of the flow around the stern can the minimizes energy losses amount stern attachment 121 to 124 time, determine the full-scale shape (S260) of stern attachment 121 to 124.In one embodiment, full-scale fluid flow field simulation can utilize numerical analysis to carry out.
The full-scale stern attachment 121 to 124 of formation stern construction 120 is attached to boats and ships 100 and effectively reduces the amount of power loss of the rotary current generation that is produced by the rotation because of propulsion unit, forms thus energy-conservation boats and ships 100 (step 270).
Although for schematic purpose has been described preferred implementation of the present invention, but it will be understood by those skilled in the art that in the situation that do not depart from by disclosed scope and spirit of the present invention in the claims and can make various modifications, interpolation and replacement.

Claims (4)

1.一种形成具有非对称扭转的流动控制翼片的船尾结构的方法，该方法包括：CLAIMS 1. A method of forming a stern structure with asymmetrically twisted flow control fins, the method comprising: 预备多个船尾附接件；Prepare multiple stern attachments; 对由正航行的船舶形成的流体流进行建模；以及modeling the fluid flow created by a vessel underway; and 基于所建模的所述流体流，确定能够降低所述船舶的能量损失量的所述船尾附接件的附接位置、尺寸、附接角度和扭转角度；其中Determining, based on the modeled fluid flow, an attachment location, size, attachment angle, and twist angle of the stern attachment that reduces an amount of energy loss from the vessel; wherein 所述船尾附接件中的至少一部分但非全部被附接在不同位置处，具有不同的长度，并且具有扭转结构和非对称截面结构中的至少一种结构，所述扭转结构基于不同的旋转轴线进行扭转。At least some, but not all, of the stern attachments are attached at different locations, have different lengths, and have at least one of a twisted configuration and an asymmetric cross-sectional configuration based on different rotations Axis is twisted. 2.根据权利要求1所述的形成具有非对称扭转的流动控制翼片的船尾结构的方法，其中，所述船尾附接件具有所述扭转结构和所述非对称截面结构。2. The method of forming a stern structure having an asymmetrically twisted flow control fin as claimed in claim 1, wherein said stern attachment has said twisted structure and said asymmetrical cross-sectional structure. 3.根据权利要求1所述的形成具有非对称扭转的流动控制翼片的船尾结构的方法，其中3. The method of forming a stern structure with asymmetrically twisted flow control fins according to claim 1, wherein 对所述流体流进行建模还包括：Modeling the fluid flow also includes: 通过模拟附接所述船尾附接件、推进单元和舵的船尾周围的流体流来分析节能效果。The energy saving effect is analyzed by simulating the fluid flow around the stern where the stern attachment, propulsion unit and rudder are attached. 4.根据权利要求2所述的形成具有非对称扭转的流动控制翼片的船尾结构的方法，其中4. The method of forming a stern structure with asymmetrically twisted flow control fins according to claim 2, wherein 确定所述船尾附接件的附接位置、尺寸、附接角度和扭转角度还包括：Determining the attachment location, size, attachment angle and twist angle of the stern attachment further includes: 选择所述船尾附接件的附接位置、尺寸、附接角度和扭转角度的最初设计值并且模拟所述流体流，由此分析所需能量的量；selecting initial design values for the attachment position, size, attachment angle and twist angle of the stern attachment and simulating the fluid flow, thereby analyzing the amount of energy required; 基于模拟结果再设计所述船尾附接件的附接位置、尺寸、附接角度和扭转角度并且模拟所述流体流，由此分析降低的能量的量；以及redesigning the attachment position, size, attachment angle and twist angle of the stern attachment based on the simulation results and simulating the fluid flow, thereby analyzing the amount of reduced energy; and 根据在所述船尾附接件的附接位置、尺寸、附接角度和扭转角度的再设计以及模拟所述流体流中确定的模型尺寸附接件，确定全尺寸船尾附接件。A full-scale stern attachment is determined from a model sized attachment determined in the redesign of the stern attachment's attachment location, size, attachment angle, and twist angle and simulating the fluid flow.
CN2012100979342A 2011-08-22 2012-04-05 Method of forming a stern structure with asymmetrically twisted flow control fins Pending CN102951261A (en)

Applications Claiming Priority (2)

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KR1020110083344A KR101365878B1 (en) 2011-08-22 2011-08-22 Forming method for stern structure of a ship attached with asymmetric twisted flow control fin
KR10-2011-0083344 2011-08-22

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Cited By (2)

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EP3316153A4 (en) * 2015-06-23 2019-03-13 Guangzhou Shipyard International Company Limited Fairing method for asymmetric ship
CN114056483A (en) * 2020-08-03 2022-02-18 秦皇岛耀华装备集团股份有限公司 CM high-speed boat

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JP6548062B2 (en) * 2014-05-23 2019-07-24 国立研究開発法人 海上・港湾・航空技術研究所 Stern duct, stern attachment, method of designing stern duct, and ship equipped with stern duct
CN106184610B (en) * 2016-07-11 2018-06-08 广州文冲船厂有限责任公司 A kind of sternpost and tail fin installation method
CN111498049B (en) * 2020-04-10 2021-12-21 中船澄西扬州船舶有限公司 Mounting method of energy-saving stator
CN113859476B (en) * 2021-11-10 2023-03-24 上海外高桥造船有限公司 Energy-saving stator installation tool and construction process thereof

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Publication number Priority date Publication date Assignee Title
EP3316153A4 (en) * 2015-06-23 2019-03-13 Guangzhou Shipyard International Company Limited Fairing method for asymmetric ship
CN114056483A (en) * 2020-08-03 2022-02-18 秦皇岛耀华装备集团股份有限公司 CM high-speed boat
CN114056483B (en) * 2020-08-03 2023-09-08 秦皇岛耀华装备集团股份有限公司 Fiber reinforced composite material high-speed boat

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JP2013043633A (en) 2013-03-04
KR20130021056A (en) 2013-03-05
KR101365878B1 (en) 2014-02-24
JP2013043634A (en) 2013-03-04

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Application publication date: 20130306