CN109263797A - A kind of control method improving shipbuilding steel plate utilization rate - Google Patents
A kind of control method improving shipbuilding steel plate utilization rate Download PDFInfo
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- CN109263797A CN109263797A CN201811249907.6A CN201811249907A CN109263797A CN 109263797 A CN109263797 A CN 109263797A CN 201811249907 A CN201811249907 A CN 201811249907A CN 109263797 A CN109263797 A CN 109263797A
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- jacking
- utilization rate
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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)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The present invention relates to a kind of control methods for improving shipbuilding steel plate utilization rate, successively the following steps are included: (1) design phase, is designed the material cutting plan of each body section of hull and obtains design result；(2) the pre- jacking stage carries out pre- jacking to each body section according to the design result, the dosage a of steel needed for formulating jacking scheme according to pre- jacking result and calculate jacking scheme；(3) judge whether jacking scheme is qualified, preset the upper limit value b of rolled steel dosage, a is compared with the size of b, if a > b, the jacking scheme is unqualified, return step (1) or step (2)；If a≤b, the jacking scheme is qualified, can enter next step；(4) the jacking stage carries out jacking to each body section according to the jacking scheme.A kind of control method improving shipbuilding steel plate utilization rate provided by the invention, can be improved the utilization rate of steel, reduces production cost, increase shipbuilding benefit.
Description
Technical field
The present invention relates to field of shipbuilding more particularly to a kind of control methods for improving shipbuilding steel plate utilization rate.
Background technique
Currently, shipbuilding industry is depressed, ship order is less, and order price is low, and the materials such as steel plate, equipment price fly
Rise, shipbuilding cost is caused to rise, it is almost profitless to say.In the case, can only seek to break through by reducing production cost, and
Steel plate occupies the material cost of the overwhelming majority during shipbuilding, and raising steel plate utilization ratio, which can be effectively reduced, to be produced into
This, strong operability.The steel plate utilization ratio of shipbuilding is generally relatively low, and room for promotion is big.
Summary of the invention
The present invention provides a kind of control methods for improving shipbuilding steel plate utilization rate, and the utilization rate of steel can be improved, and reduce
Production cost increases shipbuilding benefit.
To achieve the above object, the present invention provides a kind of control method for improving shipbuilding steel plate utilization rate, successively include
Following steps: (1) design phase is designed the material cutting plan of each body section of hull and obtains design result；(2) pre- set
The material stage carries out pre- jacking to each body section according to the design result, formulates jacking scheme simultaneously according to pre- jacking result
The dosage a of steel needed for calculating jacking scheme；(3) judge whether jacking scheme is qualified, preset the upper limit value b of rolled steel dosage, it will
The a is compared with the size of b, if a > b, the jacking scheme is unqualified, return step (1) or step (2)；If a≤b,
Then the jacking scheme is qualified, can enter next step；(4) the jacking stage, according to the jacking scheme to each body section into
Row jacking.
Preferably, described in step (2) formulate jacking scheme specific steps include: to each body section into
Row grouping, is classified as same group for plate thickness in each body section and material body section all the same first and is formed multiple
Segmentation group, the body section quantity in each segmentation group are n, wherein carry out single hop jacking to the segmentation group of n=1；To 2
The segmentation group of≤n≤3 carries out junior unit jacking；Big subregion mixing jacking is carried out to the segmentation group of 4≤n.
Preferably, 2~3 body sections are carried out mixing jacking by the specific steps of the junior unit jacking.
Preferably, the big subregion mixing jacking the specific steps are if be first divided into the segmentation group of 4≤n
Gan Ge group includes 4~8 body sections in each group, then mixes respectively to each group
Jacking.
Preferably, it when being designed in step (1) to the material cutting plan of each body section of hull, to deck, puts down
Platen, longitudinal wall plate, outside plate and slab carry out whole design and guarantee the deck, platform under the premise of meeting design requirement
At least two in plate, longitudinal wall plate, outside plate and slab select identical material and plate thickness.
Preferably, the material cutting plan of each body section of hull is designed including before design in step (1)
Global analysis is carried out to the structure of the hull of required design, determines the whole plate-laying width of hull.
It preferably, further include part mixing jacking step in step (4), the part mixing jacking step is specific
It include: that mixing jacking is carried out to thickness and the identical part of material.
Preferably, the dosage a1 of steel needed for each body section in jacking scheme is calculated separately, presets and corresponds to
The a1 is compared by the upper limit value b1 of the rolled steel dosage of segmentation with the size of b1, if a1 > b1, which does not conform to
Lattice, return step (1) or step (2)；If a1≤b1, the jacking scheme is qualified, can enter next step.
The present invention provides a kind of control methods for improving shipbuilding steel plate utilization rate, by formulating preferably in the design phase
Material cutting plan is formulated satisfactory jacking scheme in the pre- jacking stage, is selected in the jacking stage according to the specific structure of body section
Reasonable jacking mode is taken, the dosage of control by stages steel during shipbuilding drops to improve the utilization rate of steel
Low production cost increases shipbuilding benefit.
Detailed description of the invention
Fig. 1 is a kind of flow chart of control method for improving shipbuilding steel plate utilization rate provided by the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, for it is provided by the present invention it is a kind of improve shipbuilding steel plate utilization rate control method, successively include with
Lower step: (1) design phase is designed the material cutting plan of each body section of hull and obtains design result；(2) pre- jacking
Stage carries out pre- jacking to each body section according to the design result, formulates jacking scheme according to pre- jacking result and counts
The dosage a of steel needed for calculating jacking scheme；(3) judge whether jacking scheme is qualified, the upper limit value b of rolled steel dosage is preset, by institute
It states a to be compared with the size of b, if a > b, the jacking scheme is unqualified, return step (1) or step (2)；If a≤b,
The jacking scheme is qualified, can enter next step；(4) the jacking stage carries out each body section according to the jacking scheme
Jacking.The present invention formulates satisfactory jacking scheme by formulating preferably material cutting plan in the design phase, in the pre- jacking stage,
Reasonable jacking mode, control by stages during shipbuilding are chosen according to the specific structure of body section in the jacking stage
The dosage of steel reduces production cost to improve the utilization rate of steel, increases shipbuilding benefit.
In the present embodiment, the specific steps that jacking scheme is formulated described in step (2) include: to carry out to each body section
Grouping, is classified as same group for plate thickness in each body section and material body section all the same first and forms multiple points
Section group, the body section quantity in each segmentation group are n, wherein carry out single hop jacking to the segmentation group of n=1；To 2≤n
≤ 3 segmentation group carries out junior unit jacking, wherein the specific steps of the junior unit jacking mix 2~3 body sections
Trap material, using junior unit jacking, the utilization rate of steel is higher, schemes out relatively flexibly.Big subregion is carried out to the segmentation group of 4≤n
Mix jacking, wherein the big subregion mixing jacking the specific steps are it is small to be divided into several for the segmentation group of 4≤n first
Group includes 4~8 body sections in each group, then carries out mixing jacking to each group respectively, this
Outside, approximate 4~8 segmentations of with strong complementarity in same region, plate thickness material can also be subjected to mixing jacking, individual segments are because of association
Complicated or drawing is adjusted to move back and examine slow implementation single hop jacking.In this way, utilization rate of design is relatively high, customer specification can be significantly
It reduces, clout generates less.
It further, is the utilization rate for further increasing steel, to the material cutting plan of each body section of hull in step (1)
When being designed, whole design is carried out to deck, platform board, longitudinal wall plate, outside plate and slab, in the premise for meeting design requirement
Under, guarantee that at least two in the deck, platform board, longitudinal wall plate, outside plate and slab select identical material and plate thickness.Specifically
Ground, when the material cutting plan to each body section of hull is designed, the personnel's needs for carrying out region plate-laying and check and correction are abundant
Experience will not only consider reasonable structure, also to audit in terms of increasing operation rate, guarantee the reasonability of plate-laying, mention from source
Utilization rate of high steel.Emphasis is big grillage, such as deck, platform board, longitudinal wall plate, outside plate and slab, this kind of plate plate-laying
Rationally, utilization rate guarantees that the too low carry out of section utilization rate is appropriately combined, and special plate thickness or rare material are also combined mixed set.
In this way, figure strong flexibility is singly extracted in segmentation, node completion rate is high, and construction reason material is convenient.
Further, the material cutting plan of each body section of hull is designed including right before design in step (1)
The structure of the hull of required design carries out global analysis, determines the whole plate-laying width of hull.Specifically, it orders goods in new marine railway plate
Before, preferred plate-laying width is formulated according to the typical structure of the ship, is selected for plate-laying below, to reduce the dosage of steel, especially
When being plate-laying, suitably increases plate stitch, improve a utilization rate.
It further include part mixing jacking step in the present embodiment, in step (4), the part mixing jacking step is specifically wrapped
It includes: mixing jacking is carried out to thickness and the identical part of material.By further segmenting, jacking cannot be mixed between fragments
When, mixing jacking can be carried out to the part in segmentation or the part between different segmentations, to improve the utilization rate of steel.Into one
Step ground, calculates separately the dosage a1 of steel needed for each body section in jacking scheme, presets the rolled steel dosage of corresponding segments
The a1 is compared by upper limit value b1 with the size of b1, if a1 > b1, the jacking scheme is unqualified, return step (1) or
Step (2)；If a1≤b1, the jacking scheme is qualified, can enter next step and specifically formulate each region utilization rate index,
Be segmented pre- jacking utilization rate it is up to standard after can just submit order personnel audit；Pre- jacking has to pass through check and correction, press corrector to point
Every set flitch of area or the pre- jacking of segmentation is audited one by one, is instructed the place that can optimize, adjust, and requires to cover again
Material, it is ensured that the stickiness and reasonability of jacking.In addition, before pre- jacking, according to the typical structural characteristics of the ship structure, partial structurtes
Particularity, rare material the characteristics of etc., formulate the preferred specification of plate-laying of the ship, optimize plate-laying, meanwhile, indicate pre- jacking
The requirement in stage, design personnel optimize as much as possible and reduce customer specification in pre- set, the work in stage of ordering goods.Each point
Various plate specifications are summarized after area or segmentation jacking, specification optimization is then carried out, merges, before not influencing utilization rate
It puts, compresses customer specification, control is in the specification quantity that resources area requires as far as possible.Due to having formulated preferred specification, order goods
Width direction is relatively uniform, can reduce the difficulty of specification optimization.Ultra-thick plate, special substance plate are examined to improve stock utilization
Consider the mixed set of full ship, increases operation rate.A kind of control method for raising shipbuilding steel plate utilization rate that the present embodiment proposes, comprising:
(1), reasonable jacking mode is chosen, (2) formulate the preferred specification of plate-laying, unified plate-laying according to design feature, and (3) reinforce plate-laying
The design and audit of figure, (4), stringent pre- jacking are checked on, (5), optimization steel plate customer specification.Above several aspects are controlled to help
In improving steel plate utilization ratio, production cost is reduced, increases shipbuilding benefit.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of control method for improving shipbuilding steel plate utilization rate, which is characterized in that successively the following steps are included: (1) designs rank
Section, is designed the material cutting plan of each body section of hull and obtains design result；(2) it in the pre- jacking stage, is set according to described
Meter is as a result, carry out pre- jacking to each body section, needed for formulating jacking scheme according to pre- jacking result and calculate jacking scheme
The dosage a of steel；(3) judge whether jacking scheme qualified, preset rolled steel dosage upper limit value b, by the size of a and b into
Row compares, if a > b, the jacking scheme is unqualified, return step (1) or step (2)；If a≤b, which is closed
Lattice can enter next step；(4) the jacking stage carries out jacking to each body section according to the jacking scheme.
2. the control method according to claim 1 for improving shipbuilding steel plate utilization rate, which is characterized in that institute in step (2)
Stating and formulating the specific steps of jacking scheme includes: to be grouped to each body section, first by plate in each body section
Thickness and material body section all the same are classified as same group and form multiple segmentation groups, the hull in each segmentation group point
Segment number is n, wherein carries out single hop jacking to the segmentation group of n=1；Junior unit jacking is carried out to the segmentation group of 2≤n≤3；To 4
The segmentation group of≤n carries out big subregion mixing jacking.
3. the control method according to claim 2 for improving shipbuilding steel plate utilization rate, which is characterized in that the junior unit set
2~3 body sections are carried out mixing jacking by the specific steps of material.
4. the control method according to claim 2 for improving shipbuilding steel plate utilization rate, which is characterized in that the big subregion is mixed
Trap material the specific steps are be divided into several groups for the segmentation group of 4≤n first, include 4~8 in each group
Then the body section carries out mixing jacking to each group respectively.
5. the control method according to claim 1 for improving shipbuilding steel plate utilization rate, which is characterized in that right in step (1)
When the material cutting plan of each body section of hull is designed, whole set is carried out to deck, platform board, longitudinal wall plate, outside plate and slab
Meter, under the premise of meeting design requirement, guarantees at least two choosings in the deck, platform board, longitudinal wall plate, outside plate and slab
With identical material and plate thickness.
6. the control method according to claim 1 for improving shipbuilding steel plate utilization rate, which is characterized in that right in step (1)
The material cutting plan of each body section of hull is designed including carrying out whole point to the structure of the hull of required design before design
Analysis, determines the whole plate-laying width of hull.
7. the control method according to claim 1 for improving shipbuilding steel plate utilization rate, which is characterized in that in step (4) also
Including part mixing jacking step, the part mixing jacking step is specifically included: being carried out to thickness and the identical part of material
Mix jacking.
8. the control method according to claim 1 for improving shipbuilding steel plate utilization rate, which is characterized in that calculate separately jacking
The dosage a1 of steel needed for each body section in scheme presets the upper limit value b1 of the rolled steel dosage of corresponding segments, by the a1
It is compared with the size of b1, if a1 > b1, the jacking scheme is unqualified, return step (1) or step (2)；If a1≤b1,
Then the jacking scheme is qualified, can enter next step.
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| CN112613704A (en) * | 2020-12-11 | 2021-04-06 | 江南造船(集团)有限责任公司 | Production method for ship steel ordering, blanking, distribution and cutting |
| CN114932987A (en) * | 2022-01-21 | 2022-08-23 | 上海东欣软件工程有限公司 | Automatic nesting realization method for ship body plate of SPD system and automatic nesting platform |
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Application publication date: 20190125 |