CN104691702A - Expansion method for contour line of bulbous bow - Google Patents
Expansion method for contour line of bulbous bow Download PDFInfo
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- CN104691702A CN104691702A CN201310666858.7A CN201310666858A CN104691702A CN 104691702 A CN104691702 A CN 104691702A CN 201310666858 A CN201310666858 A CN 201310666858A CN 104691702 A CN104691702 A CN 104691702A
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Abstract
The invention provides an expansion method for a contour line of a bulbous bow. The expansion method specifically comprises the following steps: S1, sequentially drawing distances from various points to a baseline on a middle longitudinal section plan of the bulbous bow onto a shell expansion plan, expanding transverse curvature and not expanding longitudinal curvature of a bulb in a shell expansion way, and smoothly connecting the various points on the shell expansion plan to form an expanded outer contour line of the bulb; S2, determining an inflection point between the bulb and a shell which is adjacent to the bulb, wherein the inflection point is one point at the top of the bulb; S3, for the shell bow contour line above the inflection point on the shell expansion plan, by taking the contour line above the inflection point of the bow contour line in the middle longitudinal section plan as reference, further expanding other shell parts according to the principle of only expanding the transverse curvature and not expanding the longitudinal curvature. By adopting the expansion method provided by the invention, the bulb and the adjacent shell structure can be correctly expanded, and the shape and the size of the shell can be truly reflected, thereby being conductive to determining the specification of the shell; meanwhile, typesetting, lofting, nesting and processing of the shell in the late stage are guided.
Description
Technical field
The present invention relates to a kind of method of deploying of bulbous bow outline line.
Background technology
According to " Ship Graphing " that November nineteen ninety-five, Harbin Engineering University published, its March in 2005 the 6th printed copy the 134th page describes about the content of drawing head and the tail outline line: because shell expansion plan does not longitudinally launch, only launch horizontal curvature, head and the tail contour shape in shell expansion plan is identical with the head and the tail contour shape in sheer plan, can draw according to the size provided in sheer plan.But along with the development of ship design, existing most of ship type generally all contains Bulb bows or stern nose (propelling unit propeller boss), such outside plate is when launching head and the tail outline line, the true form of ball nose can not be launched faithfully according to existing method of deploying, therefore also just can not the outside plate typesetting in accurate instruction later stage, setting-out, jacking, processing.
Summary of the invention
The technical problem to be solved in the present invention be routine in order to overcome prior art method of deploying can not expansion ball nose strictly according to the facts true form, can not the outside plate typesetting of accurate instruction later stage, setting-out, the defect such as jacking and processing, a kind of method of deploying of bulbous bow outline line is provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A method of deploying for bulbous bow outline line, its feature is, it specifically comprises the following steps:
S
1, each point on the center buttock figure of bulbous bow is signed on shell expansion plan successively apart from the distance of baseline, and ball nose launches horizontal curvature by shell plate development mode, longitudinal curvature is not launched, and on smooth connection shell expansion plan, each point forms the outer contour that ball nose launches;
S
2, determine the flex point of ball nose and adjacent outside plate, this flex point be the top of ball nose a bit;
S
3, more than shell expansion plan flex point outside plate bow outline line be as the criterion with outline line more than bow outline line flex point in center buttock figure, then according to only launching horizontal curvature, the principle that longitudinal curvature is not launched launches all the other outer panel section.
In this programme, adopt above-mentioned method of deploying, the correct expansion of ball nose and adjacent outer panel structure can be made, react shape and the size of outside plate strictly according to the facts, be conducive to the determination of outside plate specification, instruct the typesetting of later stage outside plate, setting-out, jacking and processing simultaneously.
Preferably, step S
1specifically comprise the following steps:
S
11, the distance of frame plan midline each rib distance of positions baseline of bulbous bow signed in successively on corresponding shell expansion plan, each point that then smooth connection launches in shell expansion plan forms the lower whorl profile that ball nose launches;
S
12, the principle of not launching only to launch horizontal curvature according to longitudinal curvature launches bulbous bow, each rib position launches to sign in shell expansion plan successively, each point that smooth connection launches in shell expansion plan thus form the upper outline line that ball nose launches;
S
13, upper outline line is connected with bottom profiled line smoothing, form complete ball nose and launch outer contour.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
The method of deploying of bulbous bow outline line of the present invention makes the correct expansion of ball nose and adjacent outer panel structure, reacts shape and the size of outside plate strictly according to the facts, is conducive to the determination of outside plate specification, instruct the typesetting of later stage outside plate, setting-out, jacking and processing simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of bulbous bow of the present invention.
Fig. 2 is the center buttock structural representation of the bulbous bow of present pre-ferred embodiments.
Fig. 3 is the frame line structural representation of the bulbous bow of present pre-ferred embodiments.
Fig. 4 is the shell plate development structural representation of the bulbous bow of present pre-ferred embodiments.
Description of reference numerals:
Deck: 1 bow outline line: 2 baselines: 3
Center line: 4 first camber lines: 5 second camber lines: 6
3rd camber line: 7 bow outline line terminals: 8 ball nose terminals: 9
Ball nose starting point: 10 first camber line terminals: 11 first camber line starting points: 12
Second camber line terminal: 13 second camber line starting points: 14 the 3rd camber line terminals: 15
3rd camber line flex point: 16 the 3rd camber line starting points: 17
Deck evolute: 1 ' bow expanding wheel profile: 2 '
Bow outline line launches terminal: 8 ' ball nose launches terminal: 9 '
Ball nose launches starting point: the 10 ' first camber line launches terminal: 11 '
First camber line launches starting point: the 12 ' second camber line launches terminal: 13 '
Second camber line launches starting point: the 14 ' the 3rd camber line launches terminal: 15 '
3rd camber line launches flex point: the 16 ' the 3rd camber line launches starting point: 17 '
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
As shown in figures 1-4, the method for deploying of bulbous bow outline line of the present invention specifically can be divided into the following steps.
Step 100, each point on the center buttock figure (as shown in Figure 3) of bulbous bow is signed on shell expansion plan (as shown in Figure 4) apart from the distance of baseline 3 successively, and ball nose launches horizontal curvature by shell plate development mode, longitudinal curvature is not launched, and on smooth connection shell expansion plan, each point forms the outer contour that ball nose launches.
Step 101, determines the flex point (i.e. ball nose terminal 9) of ball nose and adjacent outside plate, this flex point be the top of ball nose a bit.
In the present invention, shell expansion plan (as shown in Figure 4) is gone on board, and to open the go on board flex point (i.e. ball nose terminal 9) of first run profile 2 of the flex point (i.e. ball nose launch terminal 9 ') of outline line 2 ' and center buttock figure (as shown in Figure 2) are same points in premier exhibition, the former is the position after launching, the latter be launch before position on real ship, flex point is the train spacing point of ball nose and all the other outer panel structures.
Step 102, the bow outline line of outside plate more than shell expansion plan flex point is as the criterion with outline line more than bow outline line flex point in center buttock figure, then according to only launching horizontal curvature, the principle that longitudinal curvature is not launched launches all the other outer panel section.
In the present invention, adopt above-mentioned method of deploying, ball nose and adjacent outer panel structure can be made correctly to launch, react shape and the size of outside plate strictly according to the facts, be conducive to the determination of outside plate specification, instruct the typesetting of later stage outside plate, setting-out, jacking and processing simultaneously.
Preferably, step 100 specifically comprises the following steps:
Step 1000, signs on corresponding shell expansion plan successively by the distance of frame plan center line 4 place each rib distance of positions baseline of bulbous bow, each point that then smooth connection launches in shell expansion plan forms the lower whorl profile that ball nose launches.
Step 1001, the principle not launching only to launch horizontal curvature according to longitudinal curvature launches bulbous bow, and each rib position launches to sign in shell expansion plan successively, each point that smooth connection launches in shell expansion plan thus form the upper outline line that ball nose launches.
Step 1002, upper outline line is connected with bottom profiled line smoothing, forms complete ball nose and launches outer contour.
For each point each point obtained in shell expansion plan (as shown in Figure 4) on No. 10 rib positions (#10) in center buttock figure (as shown in Figure 2) and frame plan (as shown in Figure 3) and No. 15 rib position (#15) lines, the method for deploying of bulbous bow outline line of the present invention is described below.
First, obtain the first camber line according to the first camber line starting point 12 on Fig. 3 to the distance of baseline 3 and launch starting point 12 ', launching starting point 12 ' with the first camber line be perpendicular line section of pointing with the finger or gesticulate, and the length of this vertical line segment equals the arc length L of the first camber line 5
1, terminal i.e. the first camber line obtaining this vertical line segment launches terminal 11 ' (corresponding with the first camber line terminal 11 in Fig. 2).
Equally, obtain the 3rd camber line launch starting point 17 ' according to the 3rd camber line starting point 17 on Fig. 3 to the distance of baseline 3, launching starting point 17 ' with the 3rd camber line be perpendicular line section of pointing with the finger or gesticulate, and the length of this vertical line segment equals the arc length L of the 3rd camber line 7
3, terminal i.e. the 3rd camber line obtaining this vertical line segment launches terminal 15 ' (corresponding with the 3rd camber line terminal 15 in Fig. 2), and in actual mechanical process, other similitude drafting methods are identical.Equal the 3rd camber line according to the arc length of the 3rd camber line flex point 16 to the three camber line starting point 17 and launch the distance vertically of flex point 16 ' to the 3rd camber line expansion starting point 17 ', the arc length of the 3rd camber line flex point 16 to the three camber line terminal 15 equals the 3rd camber line and launches flex point 16 ' launches terminal 15 ' distance vertically to the 3rd camber line, and two distances are added and obtain the arc length L of the 3rd camber line 7
3, obtain the 3rd camber line in Fig. 4 and launch the position of flex point 16 '.
Smooth connection ball nose launches starting point 10 ' (corresponding with the ball nose starting point 10 in Fig. 2), the 3rd camber line launches starting point 17 ' and the first camber line launches each point between starting point 12 ', forms the lower whorl profile that ball nose launches; Smooth connection first camber line launches each point between terminal 11 ' and the 3rd camber line expansion flex point 16 ', forms the upper outline line that ball nose launches.Upper outline line is connected with bottom profiled line smoothing, forms the outer contour that complete ball nose launches.
Wherein, 3rd camber line launches the end points that flex point 16 ' is upper outline line, also be ball nose flex point, and the straight line that the 3rd camber line expansion flex point 16 ' (ball nose launches terminal 9 ') launches terminal 8 ' to bow outline line directly copy gained by the straight line ball nose terminal 9 to bow outline line terminal 8.
It is that the second camber line launches starting point 14 ' (corresponding with the second camber line starting point 14 in Fig. 2) that extended line and the 3rd camber line of No. 15 rib position (#15) lines launch the intersection point that flex point 16 ' launches the outline line between terminal 8 ' to bow outline line, launching starting point 14 ' with the second camber line has been strokes and dots perpendicular line section, and the length of this vertical line segment equals the arc length L of the second camber line 6
2terminal i.e. the second camber line obtaining this vertical line segment launches terminal 13 ' (corresponding with the second camber line terminal 13 in Fig. 2), smooth connection the 3rd camber line launches terminal 15 ', the second camber line launches terminal 13 ' and ball nose launches each point between terminal 8 ', obtains the deck evolute 1 ' at deck 1 place.Accordingly, each rib position is launched respectively, obtains complete bulbous bow outline line.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this is only casehistory, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (2)
1. a method of deploying for bulbous bow outline line, is characterized in that, it specifically comprises the following steps:
S
1, each point on the center buttock figure of bulbous bow is signed on shell expansion plan successively apart from the distance of baseline, and ball nose launches horizontal curvature by shell plate development mode, longitudinal curvature is not launched, and on smooth connection shell expansion plan, each point forms the outer contour that ball nose launches;
S
2, determine the flex point of ball nose and adjacent outside plate, this flex point be the top of ball nose a bit;
S
3, more than shell expansion plan flex point outside plate bow outline line be as the criterion with outline line more than bow outline line flex point in center buttock figure, then according to only launching horizontal curvature, the principle that longitudinal curvature is not launched launches all the other outer panel section.
2. method of deploying as claimed in claim 1, is characterized in that, step S
1specifically comprise the following steps:
S
11, the distance of frame plan midline each rib distance of positions baseline of bulbous bow signed in successively on corresponding shell expansion plan, each point that then smooth connection launches in shell expansion plan forms the lower whorl profile that ball nose launches;
S
12, the principle of not launching only to launch horizontal curvature according to longitudinal curvature launches bulbous bow, each rib position launches to sign in shell expansion plan successively, each point that smooth connection launches in shell expansion plan thus form the upper outline line that ball nose launches;
S
13, upper outline line is connected with bottom profiled line smoothing, form complete ball nose and launch outer contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666858.7A CN104691702B (en) | 2013-12-10 | 2013-12-10 | The method of deploying of bulbous bow contour line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666858.7A CN104691702B (en) | 2013-12-10 | 2013-12-10 | The method of deploying of bulbous bow contour line |
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| Publication Number | Publication Date |
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| CN104691702A true CN104691702A (en) | 2015-06-10 |
| CN104691702B CN104691702B (en) | 2017-01-04 |
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| CN201310666858.7A Expired - Fee Related CN104691702B (en) | 2013-12-10 | 2013-12-10 | The method of deploying of bulbous bow contour line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836050A (en) * | 2016-05-18 | 2016-08-10 | 中船黄埔文冲船舶有限公司 | Stem post line fairing method |
| CN108135552A (en) * | 2015-09-29 | 2018-06-08 | 皇家飞利浦有限公司 | The improved visualization of projected X-rays image |
| CN108674577A (en) * | 2018-05-18 | 2018-10-19 | 中船黄埔文冲船舶有限公司 | The setting out method of extendible stabilizer outside plate |
| CN112278189A (en) * | 2020-11-02 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Lofting and unfolding method of irregular bulwark outer plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003079238A1 (en) * | 2002-03-19 | 2003-09-25 | The Cooperative Association Of Japan Shipbuilders | Shell plating developing method, shell plating manufacturing method, computer program for teaching the methods, and image recording medium for teaching the methods |
-
2013
- 2013-12-10 CN CN201310666858.7A patent/CN104691702B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003079238A1 (en) * | 2002-03-19 | 2003-09-25 | The Cooperative Association Of Japan Shipbuilders | Shell plating developing method, shell plating manufacturing method, computer program for teaching the methods, and image recording medium for teaching the methods |
Non-Patent Citations (2)
| Title |
|---|
| 何志标: "《船体放样实训指导》", 31 January 2008 * |
| 蔡云南 等: ""外板展开图程序"", 《船舶》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108135552A (en) * | 2015-09-29 | 2018-06-08 | 皇家飞利浦有限公司 | The improved visualization of projected X-rays image |
| CN108135552B (en) * | 2015-09-29 | 2021-10-29 | 皇家飞利浦有限公司 | Improved visualization of projected X-ray images |
| CN105836050A (en) * | 2016-05-18 | 2016-08-10 | 中船黄埔文冲船舶有限公司 | Stem post line fairing method |
| CN105836050B (en) * | 2016-05-18 | 2017-11-24 | 中船黄埔文冲船舶有限公司 | A kind of first column type line smoothing method |
| CN108674577A (en) * | 2018-05-18 | 2018-10-19 | 中船黄埔文冲船舶有限公司 | The setting out method of extendible stabilizer outside plate |
| CN112278189A (en) * | 2020-11-02 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Lofting and unfolding method of irregular bulwark outer plate |
| CN112278189B (en) * | 2020-11-02 | 2022-09-02 | 中船黄埔文冲船舶有限公司 | Lofting and unfolding method of irregular bulwark outer plate |
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| CN104691702B (en) | 2017-01-04 |
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