CN105893706B - A kind of three-dimensional lofting method of fairlead steel-casting - Google Patents
A kind of three-dimensional lofting method of fairlead steel-casting Download PDFInfo
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- CN105893706B CN105893706B CN201610272967.4A CN201610272967A CN105893706B CN 105893706 B CN105893706 B CN 105893706B CN 201610272967 A CN201610272967 A CN 201610272967A CN 105893706 B CN105893706 B CN 105893706B
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Abstract
The present invention relates to a kind of three-dimensional lofting method of fairlead steel-casting, comprising: A, according to the two-dimentional line illustration of fairlead steel-casting major profile makes the two-dimentional line illustration in the aperture of fairlead steel-casting；B, the two-dimentional line illustration in the two-dimentional line illustration of major profile, aperture is changed into 3-D view；C, it on the 3-D view in aperture, is launched respectively along the tangent line with the cylinder of fairlead in the intersection and aperture of aperture outer and ship hull plate, and the 3-D view of major profile is made on the corresponding position in aperture；D, the multiple curved surfaces of intersection and tangent line being partitioned into are subjected to fairing using three-dimensional grid, obtain three-dimensional three-dimensional grid fairlead steel-casting figure；E, the 3-D view for needing section to be requested is made on three-dimensional grid fairlead steel-casting figure；F, the 3-D view of section to be requested will be needed to change into two-dimentional line illustration.The precision of fairlead steel-casting setting-out expansion can be improved in the present invention, makes casting more fairing, and improve hull aesthetics.
Description
Technical field
The present invention relates to ship components setting-out fields, and in particular to a kind of three-dimensional lofting method of fairlead steel-casting is fitted
Setting-out for the various fairlead steel-castings of ship.
Background technique
All the time, the setting-out expansion of the fairlead steel-casting of hull is all a complexity and the work that can not be precisely accomplished
Make, the size for needing to obtain multiple sections of fairlead steel-casting carries out setting-out expansion, just can guarantee accuracy.
A kind of way of the setting-out expansion of fairlead steel-casting is in the prior art: first providing the ruler of one or two section
It is very little, namely the size of major profile is provided, other are then calculated according to the size of major profile needs section to be requested
A near-sighted shape is unfolded so that size is calculated as section to be requested is needed, then by aforementioned known section for size
Producer, which is given, with the section sought does casting.But often precision is not high for the shape of this scheme expansion, takes producer and does
When casting, the effect often worked it out is very unsatisfactory (casting also needs to melt down double teeming sometimes), such as the whole not fairing of casting,
It is not bonded with ship hull plate, installation when needs to remove the gap between landfill casting and outside plate, direct shadow with a large amount of sealing weld
Ring the performance and beauty for arriving hull.
Summary of the invention
The purpose of the present invention is to provide a kind of three-dimensional lofting methods of fairlead steel-casting, to improve fairlead steel-casting
The precision of setting-out expansion makes the whole more fairing of the casting produced, higher with ship hull plate compactness, and improves and be mounted on ship
Aesthetics on body.
In order to achieve the goal above, a kind of three-dimensional lofting method of fairlead steel-casting proposed by the present invention, mainly includes
Following steps:
A, according to the two-dimentional line illustration of fairlead steel-casting major profile, the two-dimensional line in the aperture of fairlead steel-casting is made
Type figure；
B, the two-dimentional line illustration in the two-dimentional line illustration of the major profile, aperture is changed into 3-D view；
C, on the 3-D view in the aperture, launch respectively in the intersection and aperture of aperture outer and ship hull plate along with
The tangent line of the cylinder of fairlead, and the 3-D view of major profile is made on the corresponding position in aperture；
D, the multiple curved surfaces of the intersection and tangent line being partitioned into are subjected to fairing using three-dimensional grid, obtain three-dimensional three
Tie up grid fairlead steel-casting figure；
E, the 3-D view for needing section to be requested is made on the three-dimensional grid fairlead steel-casting figure；
F, the 3-D view of the need section to be requested is changed into two-dimentional line illustration.
In a wherein preferred embodiment of the invention, the step E, which makes, needs the 3-D view of section to be requested specifically to wrap
Include following steps:
E1, the projection line for needing section to be requested is made along normal direction on the three-dimensional grid fairlead steel-casting figure；
The each point opposite with the projection line made, obtains needing section to be requested on E2, the connection three-dimensional grid
3-D view.
In a wherein preferred embodiment of the invention, the quantity of the major profile is two, and is mutually perpendicular to；The step
The curved surface that intersection and tangent line are divided into D is four.
In a wherein preferred embodiment of the invention, section to be requested is needed to be similarly two, and be mutually perpendicular to.
In a wherein preferred embodiment of the invention, the line style of the major profile and the line style of section to be requested is needed substantially
Fairlead steel-casting equal portions are divided.
A kind of three-dimensional lofting method of fairlead steel-casting proposed by the present invention at least have it is following the utility model has the advantages that
1, the precision of fairlead steel-casting setting-out expansion is improved, and simpler and more direct.
2, the whole more fairing of the casting produced, it is higher with ship hull plate compactness, it can be achieved that installation effect once arrives
Position.
3, extra sealing weld construction is avoided, hull performance and aesthetics are improved.
Detailed description of the invention
Fig. 1 is mounting structure section two dimensional line illustration of the fairlead steel-casting on hull.
Fig. 2 is the two-dimentional line illustration of B-B cutting of mounting structure of the fairlead steel-casting on hull along Fig. 1.
Fig. 3 is the two-dimentional line illustration of fairlead steel-casting corresponding with Fig. 1 major profile.
Fig. 4 is the two-dimentional line illustration of fairlead steel-casting corresponding with Fig. 2 major profile.
Fig. 5 is the flow diagram for a kind of three-dimensional lofting method that embodiment proposes fairlead steel-casting.
Fig. 6 is the two-dimentional line illustration in the aperture for the fairlead steel-casting made in Fig. 5 step S100.
Fig. 7 is the Principle of Process figure of the 3-D view and corresponding operating in aperture in Fig. 5 step S200 and step S300.
Fig. 8 is the schematic diagram for the curve that Fig. 5 step S400 is obtained.
Fig. 9 is that Fig. 5 step S400 obtains three-dimensional grid fairlead steel-casting figure.
Figure 10 is the Principle of Process figure that the 3-D view for needing section to be requested is made in Fig. 5 step S500.
Figure 11 is the two-dimentional line illustration for needing section to be requested to be changed into Fig. 5 step S600 by 3-D view.
Figure 12 is the effect diagram in embodiment after the completion of setting-out.
In figure: 100- fairlead steel-casting, the aperture 110- outer line style, along line style in the aperture 120-, 130-A-A is cutd open
Upper thread type, 140-B-B sectional line style, 200- fairlead, the deck 300- line style, 400- ship hull plate line style, the aperture 410-
The intersection of outer and ship hull plate.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, being carried out below in conjunction with attached drawing and embodiment to the present invention further
Description.
Please referring to Fig. 1 to 4, Fig. 1 is mounting structure section two dimensional line illustration of the fairlead steel-casting on hull, and Fig. 2 is
Two-dimentional line illustration of mounting structure of the fairlead steel-casting on hull along the B-B cutting of Fig. 1；It can be obtained by known Fig. 1 and Fig. 2
To Fig. 3 and Fig. 4；Wherein, Fig. 3 is the two-dimentional line illustration of fairlead steel-casting corresponding with Fig. 1 major profile, and Fig. 4 is and Fig. 2 pairs
The two-dimentional line illustration of the fairlead steel-casting answered major profile.
Fig. 5 and Fig. 6 are please referred to, Fig. 5 is that embodiment proposes that the process of a kind of three-dimensional lofting method of fairlead steel-casting is shown
It is intended to, Fig. 6 is the two-dimentional line illustration in the aperture for the fairlead steel-casting made in Fig. 5 step S100.In the present embodiment, Fig. 6
Be Fig. 1 A to diagram, Fig. 3 is corresponding with the A-A section of Fig. 6, and Fig. 4 is corresponding with the B-B section of Fig. 6.The present embodiment is mainly introduced and is asked
Taking the process of the two-dimentional line illustration of C-C section and D-D section namely Fig. 3 and Fig. 4 in Fig. 6 is major profile, and C-C in Fig. 6
Section and D-D section are to need section to be requested in this implementation.Meanwhile be improve it is normative, in the present embodiment A-A section with
B-B section is vertical, and C-C section is vertical with D-D section, and the line style of four sections substantially divides fairlead steel-casting equal portions.
Also referring to Fig. 1 to Figure 12, a kind of three-dimensional lofting method for fairlead steel-casting that embodiment proposes, Ke Yipei
It closes AutoCAD software to be realized, mainly includes the following steps that S100 to S600:
S100, according to the two-dimentional line illustration of fairlead steel-casting major profile, make the two of the aperture of fairlead steel-casting
Tie up line illustration.
It can be made according to the size of each major profile of Fig. 3 and Fig. 4 (or Fig. 1 and Fig. 2) by projection in step S100
Fig. 6, Fig. 6 are the two-dimentional line illustration in the aperture of fairlead steel-casting.
S200, the two-dimentional line illustration in the two-dimentional line illustration of the major profile, aperture is changed into 3-D view.
The plan view (X, Y-coordinate system view) of Fig. 6 can be converted into 3-D view (X, Y, Z coordinate system in step S200
View), obtain the three-dimensional fairlead steel-casting view regarded such as Fig. 7.
S300, on the 3-D view in the aperture, launched in intersection and the aperture of aperture outer and ship hull plate respectively
Along the tangent line with the cylinder of fairlead, and the 3-D view of major profile is made on the corresponding position in aperture.
Step S300 is as shown in fig. 7, can be corresponding to cast in fairlead according to installation site of the fairlead steel-casting on hull
It is projected out the line style of the line style of ship hull plate and the cylinder of fairlead on steel part view, aperture outer and ship hull plate can be obtained
Along the tangent line with the cylinder of fairlead in intersection and aperture, the 3-D view of Fig. 3 and Fig. 4 can then be copied to fairlead casting
On the corresponding position of steel part view.
S400, the multiple curved surfaces of the intersection and tangent line being partitioned into are subjected to fairing using three-dimensional grid, obtain solid
Three-dimensional grid fairlead steel-casting figure.
In step S400, the section as known to the present embodiment is set as two, i.e. (B-B is cutd open by Fig. 3 (A-A section) and Fig. 4
Face), four curves can be divided between two sections and aforementioned intersection and tangent line, as shown in figure 8, then using three-dimensional grid into
Row fairing (specifically using the Mesh Smoothing function in AutoCAD software) is to get the three-dimensional grid fairlead for arriving solid
Steel-casting figure, as shown in Figure 9.
S500, the 3-D view for needing section to be requested is made on the three-dimensional grid fairlead steel-casting figure.
Step S500 specifically refers to Figure 10, using following steps S510 and step S520:
S510, the projection line for needing section to be requested is made along normal direction on the three-dimensional grid fairlead steel-casting figure；
The each point opposite with the projection line made, obtains needing section to be requested on S520, the connection three-dimensional grid
3-D view.
S600, the 3-D view of the need section to be requested is changed into two-dimentional line illustration.
Shown in two dimension line style Figure 11 obtained in step S600, C-C section and D-D can be obtained by step S500 (S520)
The 3-D view of section can change into two-dimentional line illustration in step S600.
So far, four sections needed in the present embodiment: A-A section, B-B section, C-C section and D-D section are
It is complete, by this good position of upper of four section marks and slice location, it is provided to producer and does casting.It is put in the present embodiment
Effect after the completion of sample is as shown in figure 12.
It should be noted that the above is only citing, major profile and the quantity of section to be requested has been needed simultaneously in the present embodiment
Two are not limited to, and does not limit vertical two-by-two, the line style for also not limiting four sections divides fairlead steel-casting equal portions.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (5)
1. a kind of three-dimensional lofting method of fairlead steel-casting, which comprises the following steps:
A, according to the two-dimentional line illustration of fairlead steel-casting major profile, the two-dimentional line style in the aperture of fairlead steel-casting is made
Figure；
B, the two-dimentional line illustration in the two-dimentional line illustration of the major profile, aperture is changed into 3-D view；
C, on the 3-D view in the aperture, launch respectively in the intersection and aperture of aperture outer and ship hull plate along with lead cable
The tangent line of the cylinder in hole, and the 3-D view of major profile is made on the corresponding position in aperture；
D, the multiple curved surfaces of the major profile and the intersection and tangent line being partitioned into are subjected to fairing using three-dimensional grid, obtained
To three-dimensional three-dimensional grid fairlead steel-casting figure；
E, the 3-D view for needing section to be requested is made on the three-dimensional grid fairlead steel-casting figure；
F, the 3-D view of the need section to be requested is changed into two-dimentional line illustration.
2. the three-dimensional lofting method of fairlead steel-casting according to claim 1, which is characterized in that the step E makes
Need the 3-D view of section to be requested specifically includes the following steps:
E1, the projection line for needing section to be requested is made along normal direction on the three-dimensional grid fairlead steel-casting figure；
The each point opposite with the projection line made, obtains the three-dimensional for needing section to be requested on E2, the connection three-dimensional grid
View.
3. the three-dimensional lofting method of fairlead steel-casting according to claim 2, which is characterized in that the major profile
Quantity is two, and is mutually perpendicular to；The curved surface that intersection and tangent line are divided into the step D is four.
4. the three-dimensional lofting method of fairlead steel-casting according to claim 3, which is characterized in that need section to be requested
Two are similarly, and is mutually perpendicular to.
5. the three-dimensional lofting method of fairlead steel-casting according to claim 4, which is characterized in that the major profile
Line style and the line style of need section to be requested substantially divide fairlead steel-casting equal portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272967.4A CN105893706B (en) | 2016-04-27 | 2016-04-27 | A kind of three-dimensional lofting method of fairlead steel-casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272967.4A CN105893706B (en) | 2016-04-27 | 2016-04-27 | A kind of three-dimensional lofting method of fairlead steel-casting |
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| Publication Number | Publication Date |
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| CN105893706A CN105893706A (en) | 2016-08-24 |
| CN105893706B true CN105893706B (en) | 2019-06-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106372284B (en) * | 2016-08-25 | 2019-11-26 | 福建东南造船有限公司 | A kind of Side Thrusters setting-out technique |
| CN107301279B (en) * | 2017-06-07 | 2023-07-28 | 中船黄埔文冲船舶有限公司 | Three-dimensional modeling method for ship body dome |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202657217U (en) * | 2012-06-14 | 2013-01-09 | 温岭市新建船舶修造厂 | Guide rope structure of ship |
| CN203345160U (en) * | 2013-04-23 | 2013-12-18 | 广州船舶及海洋工程设计研究院 | Hexagonal mooring pipe |
| CN204642074U (en) * | 2015-05-12 | 2015-09-16 | 魏晓阳 | Boats and ships mooring pipe |
| CN204726621U (en) * | 2015-06-30 | 2015-10-28 | 广船国际有限公司 | A kind of leadfair |
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2016
- 2016-04-27 CN CN201610272967.4A patent/CN105893706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202657217U (en) * | 2012-06-14 | 2013-01-09 | 温岭市新建船舶修造厂 | Guide rope structure of ship |
| CN203345160U (en) * | 2013-04-23 | 2013-12-18 | 广州船舶及海洋工程设计研究院 | Hexagonal mooring pipe |
| CN204642074U (en) * | 2015-05-12 | 2015-09-16 | 魏晓阳 | Boats and ships mooring pipe |
| CN204726621U (en) * | 2015-06-30 | 2015-10-28 | 广船国际有限公司 | A kind of leadfair |
Non-Patent Citations (1)
| Title |
|---|
| 巴拿马导缆孔的设计计算;刘庆 等;《造船技术》;20101231(第5期);第20-21页 |
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