CN110254623B - Manufacturing method of submerged body segment - Google Patents
Manufacturing method of submerged body segment Download PDFInfo
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- CN110254623B CN110254623B CN201910583818.3A CN201910583818A CN110254623B CN 110254623 B CN110254623 B CN 110254623B CN 201910583818 A CN201910583818 A CN 201910583818A CN 110254623 B CN110254623 B CN 110254623B
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- ribbed plate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the field of ship construction, in particular to a manufacturing method of a submerged body segment. The manufacturing method of the latent body segment comprises the following steps: dividing the subsection of the submerged body into an upper structure and a lower structure by taking the waterline surface of the submerged body as a boundary, and disconnecting the outer plate and the rib plate at the waterline surface; step two, processing and manufacturing a lower structure on the moulding bed template by a positive manufacturing method; thirdly, correspondingly welding each ribbed plate of the upper structure with the ribbed plate of the lower structure; and step four, fixedly connecting the longitudinal girders to the rib plates welded in the step three, and then fixedly connecting the outer plates of the upper structure to the rib plates and the longitudinal girders, wherein the outer plates of the upper structure are butted with the outer plates of the lower structure to form a segmented structure. The upper structure and the lower structure are separately welded, the lower structure adopts a jig frame template to ensure the precision, and welding shrinkage can be compensated when the upper structure is welded, so that the precision of the submerged body segmentation is improved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a manufacturing method of a submerged body segment.
Background
The catamaran is a ship formed by connecting the upper parts of two separated underwater hulls into a whole by using a reinforcing framework, and a main engine and a propeller are respectively arranged in the two hulls. Because the width of the catamaran is much larger than that of the monohull ship, the catamaran has obviously better stability than the monohull ship, has the capability of bearing larger wind waves, and is widely applied to military and civil ships by countries in the world.
The submerged body is an important part on a catamaran and generally has a spherical structure with symmetrical inner and outer sides. When the submerged body is manufactured, the submerged body is generally manufactured in sections, the submerged body is divided into a plurality of sections along the head-tail direction of a ship, and different sections are connected after each section is manufactured. Because the submerged body molded line is special and the structure is comparatively complicated, the accuracy of segmentation is difficult to control, need to construct repeatedly, lead to work efficiency low.
Disclosure of Invention
The invention aims to provide a manufacturing method of a submerged body subsection, which aims to solve the problems that the precision of the submerged body subsection in the prior art is difficult to control, repeated construction is needed, and the working efficiency is low.
The technical scheme of the manufacturing method of the latent body segment of the invention is as follows:
a method of making a latent segment, comprising the steps of: dividing the subsection of the submerged body into an upper structure and a lower structure by taking the waterline surface of the submerged body as a boundary, and disconnecting the outer plate and the rib plate at the waterline surface; step two, processing and manufacturing a lower structure on the moulding bed template by a positive manufacturing method; thirdly, correspondingly welding each ribbed plate of the upper structure with the ribbed plate of the lower structure; and step four, fixedly connecting the longitudinal girders to the rib plates welded in the step three, and then fixedly connecting the outer plates of the upper structure to the rib plates and the longitudinal girders, wherein the outer plates of the upper structure are butted with the outer plates of the lower structure to form a segmented structure.
The technical scheme has the advantages that the subsection of the submerged body is divided into the upper structure and the lower structure, the lower structure is manufactured by adopting a positive manufacturing method, the rib plates are welded on the upper structure and the lower structure, then the longitudinal girders and the outer plates of the upper structure are fixed on the rib plates, the upper structure and the lower structure are separately welded, the lower structure adopts the jig frame template to ensure the precision, and the welding shrinkage can be compensated when the upper structure is welded, so that the subsection precision of the submerged body is improved, and the working efficiency is improved.
And in the third step, welding the reinforcing rib plates connected with the rib plates on all rib positions in the upper structure and the rib plates to form a rib plate framework, drawing a central line, a structural line and an outer plate position line on the rib plates in the rib plate framework, and correspondingly welding the rib plates in the rib plate framework and the rib plates in the lower structure. The ribbed plates on each rib position are connected with the reinforcing rib plates to form a ribbed plate framework, and the ribbed plates in the ribbed plate framework are butted with ribbed plates of the lower structure, so that the working efficiency can be improved.
And taking the center line of the segment as a reference, moving the ribbed slab in the upper structure outwards along the width direction of the segment for welding shrinkage, and welding the reinforcing ribbed slab and the ribbed slab which moves outwards to form a ribbed slab framework. The rib plate is moved by the welding shrinkage to form a rib plate frame, and when the rib plate frame is welded with the lower structure, the shrinkage caused by welding can be compensated, so that the precision is improved.
And defining the maximum half width of the rib plate and the center line of the ship body as a, wherein the maximum half width is m, and the welding shrinkage is c, and the unit is mm.
For the ribbed plate frame of each rib position, rib lines, segmented central lines, waterlines and structural lines of the ribbed plates after moving shrinkage are drawn on a steel plate, and the ribbed plates in the ribbed plate frame are positioned and welded by taking the rib lines as reference. Each line of rib plate frame is drawn on the steel sheet, and the steel sheet is dull and stereotyped structure, and the line is drawn simply, the location of the later stage rib plate of being convenient for simultaneously.
And step two, arranging a jig frame template at the position where the head end and the tail end of the segmented lower structure retract by 50 mm. Set up the bed-jig template in the position department of end to end indentation 50mm, the bed-jig template supports the planking of substructure, avoids the planking distortion to appear.
And supporting rib plates are arranged at the positions of the heads and the tails of the inner sides of the outer plates of the lower structure, which are retracted by 50 mm. The support rib plate can enhance the structural strength of the outer plate, and the support rib plate can be detached at a later stage.
In the first step, the base line of the submerged body is used as a reference, and the height between the water line surface and the base line is 600mm-1000 mm. In the range of 600mm to 1000mm,
drawings
FIG. 1 is a schematic illustration of the amount of rib line translational weld shrinkage for example 1 of the method of making a latent segment of the present invention;
FIG. 2 is a schematic view of the lines drawn on a steel plate in example 1 of the method of making a submersible segment according to the present invention;
FIG. 3 is a schematic view of a ribbed framework made in example 1 of the method of making a latent segment of the invention;
FIG. 4 is a schematic view of the welding of the upper and lower structures of the segment in example 1 of the method of making the submersible segment according to the invention;
fig. 5 is a schematic view of a segment completed in example 1 of the method for fabricating a latent body segment of the present invention.
Wherein, the method comprises the steps of 1-rib line after translational welding shrinkage, 2-theoretical rib line, 3-waterline, 4-position line of an outer plate, 5-structure line, 6-center line, 7-rib plate, 8-stringer, 9-outer plate, 10-jig frame template, 11-base line and 12-connecting plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1 of the method for fabricating a segment of a latent body according to the present invention, as shown in fig. 1 to 5, the method for fabricating a segment of a latent body comprises the following steps.
Step one, taking a base line of a submerged body segment as a reference, making a waterline surface at a position which is 1000mm away from the base line, dividing the segment of the submerged body into an upper structure and a lower structure by taking the waterline surface of the submerged body as a boundary line, making an outer plate seam on the waterline surface of an outer plate, wherein the outer plate seam is a bottom board seam, and the outer plate and a rib plate are disconnected at the waterline surface, wherein the design of the outer plate seam is required to meet the specification requirement.
And step two, welding and processing the segmented lower structure by adopting a positive manufacturing method, arranging a jig frame template on the positive rib position of the segment and enabling the head end and the tail end of the lower structure to be retracted by 50mm, arranging the jig frame template on the positive rib position, facilitating the positioning of a rib plate in the lower structure, arranging the jig frame template at the head end and the tail end by 50mm, supporting an outer plate of the lower structure by the jig frame template, avoiding the distortion of the outer plate due to the cantilever structure and ensuring the manufacturing precision of the segment.
The supporting rib plates are welded on the inner sides of the outer plates of the lower structure, the supporting rib plates are located at the positions where the head ends and the tail ends retract by 50mm and correspond to the jig frame templates, after the segmented manufacturing is completed, the supporting rib plates are cut off, the supporting rib plates can enhance the structural strength of the outer plates, the outer plates are prevented from being twisted, and the segmented manufacturing precision is improved. And when the lower structure is manufactured, the process is carried out according to the process requirements.
And step three, correspondingly welding each ribbed plate of the upper structure with the ribbed plate of the lower structure at the water line surface in the step one. In the segmental model of the submerged body, a rib line of a rib plate of the superstructure, which is a connecting line formed by connecting points of the rib plate and the outer panel, is moved outward in the width direction of the segment by a welding contraction amount with reference to the center line of the segment. And defining the maximum half width between the rib plate and the center line of the ship body as a in m, and defining the welding shrinkage as c, wherein the c is a in mm. That is, the maximum half width of the welding shrinkage amount is 1MM/1M (if the maximum width of the rib is 2M, this rib line is shifted outward in the horizontal direction by 2 MM).
And (3) taking a rib line which is translated outwards by a welding shrinkage as a reference, turning rib plates in the model, reinforcing rib plates welded with the rib plates and the like into nesting software, and generating a line spraying code by using the nesting software. For the rib plate of each rib position, a segmented central line, a waterline, a structural line, a position line of an outer plate and a rib line of the rib plate are sprayed out from a flat steel plate according to the proportion of 1:1 through a spray gun, the structural line is intersected with the rib line, the structural line is a positioning line when a longitudinal girder is arranged on the rib plate, and the position line of the outer plate is a positioning line when the outer plate is welded and fixed on the rib. The smooth steel plate can be regarded as the base member of the cross section of segmentation on this rib position, and the lines that spout on the steel plate are the projection of each structure on this base member, and each line is examined in order to guarantee that the position of lines is accurate after the line is spouted.
And (3) paving rib plates on each rib position by taking the lines on the steel plate as a matrix according to the positions of rib lines, and welding and fixing the reinforcing rib plates on the rib plates to form a rib plate framework. By taking the structural line on the steel plate as a reference, structural holes of the longitudinal girders are formed in the rib plate, so that the longitudinal girders can be conveniently arranged at the later stage; marking the position of the outer plate seam on the rib plate according to the position line of the outer plate on the steel plate so as to facilitate the positioning of the outer plate in the later period; and marking waterline marks on the rib plates according to waterlines on the steel plates.
And repeating the third step to manufacture the ribbed plate framework on each rib position. The ribbed slab frame is a curved surface structure, connecting plates are arranged among the ribbed slabs for structural reinforcement, and the connecting plates are dismantled after the segmented manufacturing is completed.
And step four, welding the ribbed plates in the ribbed plate framework of the upper structure in the step three and the ribbed plates of the lower structure in the step two, wherein the ribbed plates on all rib positions correspond to each other, so that the ribbed plates on all rib positions in the subsections are butted into a whole, and the center line and the waterline are aligned during butt joint. After the rib position frames on each rib position are installed, longitudinal girders are installed on the left side and the right side of the sections at the same time, the longitudinal girders are sequentially arranged from bottom to top, and the longitudinal girders are arranged in structural holes which are formed in rib plates. After the longitudinal girders are arranged and welded, outer plates are simultaneously installed on the left side and the right side of the sections, the outer plates are sequentially arranged from bottom to top, and the positions of outer plate seams marked on rib plates in the third step are used as a reference for positioning when the outer plates are installed. If the outer plate of the upper structure has allowance, an allowance line can be marked according to the position of the outer plate seam marked on the rib plate to cut off the outer plate. After the outer plate is assembled, a patch plate, a toggle plate and the like are installed on the inner side of the outer plate.
In other embodiments of the method for manufacturing the submersible body segment, in the third step, the ribbed plates of the upper structure and the ribbed plates of the lower structure can be welded, and then the reinforced rib plates are welded on the welded ribbed plates to form a ribbed plate frame; in the third step, for different submerged bodies, the welding shrinkage can also not be equal to the maximum half width of the center line of the rib plate and the hull; in the second step, when the strength of the outer plate of the lower structure is enough, the jig frame templates arranged at the positions where the head end and the tail end are retracted by 50mm can be omitted.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. A method of making a submersible segment, comprising the steps of: dividing the subsection of the submerged body into an upper structure and a lower structure by taking the waterline surface of the submerged body as a boundary, and disconnecting the outer plate and the rib plate at the waterline surface; step two, processing and manufacturing a lower structure on the moulding bed template by a positive manufacturing method; respectively welding each ribbed plate of the upper structure with a ribbed plate of the lower structure correspondingly, welding the reinforcing ribbed plate connected with the ribbed plate and the ribbed plate at each ribbed position in the upper structure to form a ribbed plate framework, drawing a central line, a structural line and an outer plate position line on the ribbed plate in the ribbed plate framework, taking the sectional central line as a reference, moving the ribbed plate in the upper structure outwards along the sectional width direction for welding shrinkage, welding the reinforcing ribbed plate and the ribbed plate which moves outwards to form a ribbed plate framework, and correspondingly welding the ribbed plate in the ribbed plate framework and the ribbed plate in the lower structure; and step four, fixedly connecting the longitudinal girders to the rib plates welded in the step three, and then fixedly connecting the outer plates of the upper structure to the rib plates and the longitudinal girders, wherein the outer plates of the upper structure are butted with the outer plates of the lower structure to form a segmented structure.
2. The method of claim 1, wherein the maximum half width of the rib in relation to the hull centerline is defined as a in m, and the weld shrinkage is defined as c, and c is defined as a in mm.
3. The method of claim 1, wherein rib lines of the rib plates after moving contraction, center lines of the segments, water lines, and structural lines are drawn on the steel plate for the rib plate frames at the respective rib positions, and the rib plates in the rib plate frames are tack-welded with reference to the rib lines.
4. A method for making a submersible segment according to any one of claims 1 to 3 wherein in step two, a jig frame template is placed at a position 50mm set back from the leading and trailing ends of the segment substructure.
5. The method according to claim 4, wherein the supporting ribs are provided at positions indented by 50mm from the front and rear ends of the inner side of the outer plate of the substructure.
6. A method of fabricating a submersible segment according to any one of claims 1 to 3 wherein in step one, the height between the water plane and the baseline, based on the baseline of the submersible, is in the range 600mm to 1000 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910583818.3A CN110254623B (en) | 2019-06-28 | 2019-06-28 | Manufacturing method of submerged body segment |
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| CN201910583818.3A CN110254623B (en) | 2019-06-28 | 2019-06-28 | Manufacturing method of submerged body segment |
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| CN110254623B true CN110254623B (en) | 2021-08-20 |
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| CN112124526B (en) * | 2020-09-04 | 2022-07-05 | 中船黄埔文冲船舶有限公司 | Method for manufacturing connecting bridge segment |
| CN112173035B (en) * | 2020-10-16 | 2021-07-23 | 上海振华重工(集团)股份有限公司 | Construction method of pipe joint sinking ship in limited area |
| CN115320804A (en) * | 2021-05-11 | 2022-11-11 | 江南造船(集团)有限责任公司 | Ship engine room section construction method |
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Application publication date: 20190920 Assignee: Zhanjiang Nanhai Shipbuilding High tech Service Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980048822 Denomination of invention: A Method for Making Segmented Submarine Bodies Granted publication date: 20210820 License type: Common License Record date: 20231130 |
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