CN108557009A - A kind of computational methods of body section compensation rate - Google Patents
A kind of computational methods of body section compensation rate Download PDFInfo
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- CN108557009A CN108557009A CN201711383994.XA CN201711383994A CN108557009A CN 108557009 A CN108557009 A CN 108557009A CN 201711383994 A CN201711383994 A CN 201711383994A CN 108557009 A CN108557009 A CN 108557009A
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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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Abstract
The present invention relates to a kind of computational methods of body section compensation rate, include the following steps, obtain the positive peak E of hull principal dimension standard of tolerance, and distribute to each portion of hull；Determine the positive peak of the principal dimensions standard of tolerance in each portion of hull；The positive peak of the principal dimensions standard of tolerance in each portion of hull is decomposed in the segmentation in each portion of hull, and determines the standard of tolerance positive peak of hull each section section respectively；Calculate hull each section section closes up mouthful welded gaps and the difference of welding contracted quantity；The difference for closing up mouthful welded gaps and welding contracted quantity in each portion of the hull is compared with hull each section segment standard tolerance positive peak, the size of the compensation rate of hull each section section is determined according to comparison result.The present invention has been determined by calculation the compensation rate placed when segmentation manufacture, has been improved the accuracy of manufacture of hull and avoid waste of material by the requirement for the functional tolerance formulated in conjunction with hull principal dimension standard of tolerance and according to the performance requirement of ship.
Description
Technical field
The present invention designs shipbuilding field, and in particular to a kind of computational methods of body section compensation rate.
Background technology
During shipbuilding, since hull volume is larger, hull is usually divided into several segmentations, with hull point
Section is that unit is manufactured, and is then assembled each body section, to complete the manufacture of hull.Since hull is segmentation system
It makes, and is usually connected by welding between being segmented, welding manner connection normally results in welding deformation, and each ship
Body segmentation will produce a variety of errors in the fabrication process.Due to the above reasons, currently, after completing segmentation manufacture, into navigating
Body assemble when, it is often necessary to mowing and secondary positioning, cause the manufacturing cycle extension and material waste and it is manufactured
Hull precision may be unsatisfactory for standard requirement.
In view of the above technical problems, it usually needs when body section manufactures, certain compensation rate is placed to body section,
Existing to place compensation rate Main Basiss practical experience method, leading ship oceangoing ship is often placed according to this method, is often guarded, causes
Mowing amount is big, and follow-up ship needs to continue to optimize numerical value.
Invention content
In view of the above technical problems, the present invention provides a kind of computational methods of body section compensation rate, this method passes through
The requirement for the functional tolerance formulated in conjunction with hull principal dimension standard of tolerance and according to the performance requirement of ship, it is true by calculating
The compensation rate placed when segmentation manufacture is determined, has improved the accuracy of manufacture of hull and avoid waste of material.
To achieve the above object, the present invention provides a kind of computational methods of body section compensation rate, include the following steps,
S10, the positive peak E for obtaining hull principal dimension standard of tolerance, and distribute to each portion of hull, to obtain each portion of hull
Standard of tolerance positive peak E1 ..., EN, wherein E=E1+ ...+EN, N >=2；
S20, obtain hull each portion functional tolerance positive peak, by the positive peak of the standard of tolerance in each portion of hull
It is compared with the positive peak of the functional tolerance in each portion of hull and takes wherein smaller value as the principal dimensions in each portion of hull
The positive peak of standard of tolerance；
Wherein, the shipbuilding tolerance standard that the functional tolerance is formulated for the performance requirement of foundation ship；
S30, the positive peak of the principal dimensions standard of tolerance in each portion of the hull is decomposed in the segmentation in each portion of hull, and
The standard of tolerance positive peak D of hull each section section is determined respectively；
The difference X for closing up mouthful welded gaps and welding contracted quantity of hull each section section is calculated one by one；
S40, by the difference for closing up mouthful welded gaps and welding contracted quantity in each portion of the hull and hull each section segment mark
Quasi- tolerance positive peak is compared, and the size Y of the compensation rate of hull each section section is determined according to comparison result, wherein Y
=D-X；
Preferably, the hull includes fore body, cabin, cargo hold and stern, wherein the maximum of fore body standard of tolerance
Positive value E1, the positive peak E2 of cabin standard of tolerance, the positive peak E3 of cargo hold standard of tolerance, stern standard of tolerance it is maximum just
Value E4, E=E1+E2+E3+E4.
Preferably, in the step S30, the shared dimension scale on the fore body is segmented according to each fore body,
The positive peak E1 of the fore body principal dimensions standard of tolerance is decomposed in each fore body segmentation.
Preferably, in the step S30, the shared dimension scale in the cabin is segmented according to each cabin,
The positive peak E2 of the cabin principal dimensions standard of tolerance is decomposed in each cabin segmentation.
Preferably, in the step S30, the shared dimension scale on the cargo hold is segmented according to each cargo hold,
The positive peak E3 of the cargo hold principal dimensions standard of tolerance is decomposed in each cargo hold segmentation.
Preferably, in the step S30, the shared dimension scale on the stern is segmented according to each stern,
The positive peak E4 of the stern principal dimensions standard of tolerance is decomposed in each stern segmentation.
Preferably, in the step S40, hull each section section is closed up into mouthful welded gaps and welding receipts
The difference of contracting amount is compared with hull each section segment standard tolerance positive peak of corresponding position, is corresponded to if the difference is equal to
Hull each section segment standard tolerance positive peak of position, then the compensation rate of hull each section section is zero；If the difference is more than
Hull each section segment standard tolerance positive peak of corresponding position is equal, then the compensation rate of hull each section section is negative value；If institute
It is equal less than hull each section segment standard tolerance positive peak of corresponding position to state difference, then the compensation rate of hull each section section is
Positive value.
Preferably, in the step S30, by being welded during Hull Welding design process and general assembly hull
Contraction data collects and surveys, and closes up mouthful welded gaps and the welding contracted quantity to obtain hull each section section.
The computational methods of a kind of body section compensation rate provided by the present invention, by by hull principal dimension standard of tolerance
Positive peak is distributed according to dimension scale to each portion of hull, to obtain the positive peak of the standard of tolerance in each portion of hull respectively, then
The positive peak of the standard of tolerance in each portion of hull is compared with the positive peak of the functional tolerance in each portion of corresponding hull
And take wherein smaller value as the positive peak of the principal dimensions standard of tolerance in each portion of hull, to ensure manufactured hull out
Meet standard of tolerance simultaneously to require and functional tolerance.In addition, will also close up mouth weldering when calculating compensation rate needed for hull
Gap and welding contracted quantity are connect as calculation basis, so that the calculated compensation rate of institute is more nearly hull and manufactures actually required compensation
It measures, present invention application dimension chain principle, the basic factor that foundation mathematical statistics obtains, decomposition computation obtains each component institute layer by layer
Compensation rate is needed, by calculating applied compensation rate compared with the compensation rate applied in the prior art according to practical experience, is improved
The accuracy of manufacture of hull, while having saved manufacture hull material requested.
Further, above-mentioned each portion of hull specifically includes fore body, cabin, cargo hold and stern in the present invention, specifically, first
The positive peak of hull principal dimension standard of tolerance is distributed according to dimension scale to fore body, cabin, cargo hold and stern, to obtain respectively
The positive peak of the standard of tolerance of fore body, cabin, cargo hold and stern is taken, then respectively by the fore body obtained, cabin, cargo hold and stern
The positive peak of the principal dimensions standard of tolerance in portion is respectively allocated to fore body segmentation, cabin segmentation, cargo hold segmentation and stern segmentation, leads to
The tolerance when distribution of size twice can not only meet hull manufacture, but also manufactured hull precision can be improved.
Description of the drawings
Fig. 1 is a kind of flow chart of the computational methods of body section compensation rate of the present invention；
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
It is a kind of flow chart of the computational methods of body section compensation rate provided by the present invention as shown in Figure 1, including such as
Lower step,
S10, the positive peak E for obtaining hull principal dimension standard of tolerance, and distribute to each portion of hull, to obtain each portion of hull
Standard of tolerance positive peak E1 ..., EN, wherein E=E1+ ...+EN, N >=2；
Specifically, the positive peak E of heretofore described hull principal dimension standard of tolerance is obtained by consulting handbook,
Wherein, by the positive peak E of the hull principal dimension standard of tolerance allocation criterions distributed to each portion of hull existed according to each portion of hull
Shared dimension scale (considering shared dimension scale on three directions of length respectively) is allocated on hull.Such as to ship
When body fore body is allocated, a length of L1 of hull, width B1, a height of H1, a length of L2, width B2, a height of H2 of fore body, ship length
The positive peak of the principal dimensions standard of tolerance allowed on direction is EL, the principal dimensions standard of tolerance allowed on beam of hull direction
Positive peak is EB, and the positive peak of the principal dimensions standard of tolerance allowed on hull height direction is EH, then fore body length direction
On the positive peak of standard of tolerance be (L2/L1) × EL, the positive peak of the standard of tolerance in fore body width direction is (B2/
B1 the positive peak of) × EB, the standard of tolerance in fore body short transverse are (H2/H1) × EH.
S20, obtain hull each portion functional tolerance positive peak, by the positive peak of the standard of tolerance in each portion of hull
It is compared with the positive peak of the functional tolerance in each portion of hull and takes wherein smaller value as the principal dimensions in each portion of hull
The positive peak of standard of tolerance；
Wherein, the shipbuilding tolerance standard that the functional tolerance is formulated for the performance requirement of foundation ship；
S30, the positive peak of the principal dimensions standard of tolerance in each portion of the hull is decomposed in the segmentation in each portion of hull, and
The standard of tolerance positive peak D of hull each section section is determined respectively；
The difference X for closing up mouthful welded gaps and welding contracted quantity of hull each section section is calculated one by one；
S40, by the difference for closing up mouthful welded gaps and welding contracted quantity in each portion of the hull and hull each section segment mark
Quasi- tolerance positive peak is compared, and the size Y of the compensation rate of hull each section section is determined according to comparison result, wherein Y
=D-X；
The computational methods of a kind of body section compensation rate provided by the present invention, by by hull principal dimension standard of tolerance
Positive peak is distributed according to dimension scale to each portion of hull, to obtain the positive peak of the standard of tolerance in each portion of hull respectively, then
The positive peak of the standard of tolerance in each portion of hull is compared with the positive peak of the functional tolerance in each portion of corresponding hull
And take wherein smaller value as the positive peak of the principal dimensions standard of tolerance in each portion of hull, to ensure manufactured hull out
Meet standard of tolerance simultaneously to require and functional tolerance.In addition, will also close up mouth weldering when calculating compensation rate needed for hull
Gap and welding contracted quantity are connect as calculation basis, so that the calculated compensation rate of institute is more nearly hull and manufactures actually required compensation
It measures, present invention application dimension chain principle, the basic factor that foundation mathematical statistics obtains, decomposition computation obtains each component institute layer by layer
Compensation rate is needed, by calculating applied compensation rate compared with the compensation rate applied in the prior art according to practical experience, is improved
The accuracy of manufacture of hull, while having saved manufacture hull material requested.
Wherein, mathematical statistics：Refer to for statistical analysis according to sample data, obtains certain regularity distribution or numerical value
Method.Mathematical statistics method is used for collection, arrangement and the statistical disposition of precision measure data in precision shipbuilding, to continuously improve,
Improve hull construction compensation rate.Theory of dimensional chain：Refer to hull structural member size and its assembly completion Ship Structure in
Position connects each other, changes one of accessory size, can make another part of the structure or the position of several parts
It sets and all changes.
Specifically, the hull includes fore body, cabin, cargo hold and stern, wherein the positive peak of fore body standard of tolerance
The positive peak of E1, the positive peak E2 of cabin standard of tolerance, the positive peak E3 of cargo hold standard of tolerance, stern standard of tolerance
E4, E=E1+E2+E3+E4.In the step S30, according to each fore body segmentation shared dimension scale on the fore body, by institute
The positive peak E1 for stating fore body principal dimensions standard of tolerance is decomposed in each fore body segmentation.In the step S30, according to each machine
Cabin segmentation shared dimension scale in the cabin, the positive peak E2 of the cabin principal dimensions standard of tolerance is decomposed to each
In cabin segmentation.In the step S30, according to each cargo hold segmentation shared dimension scale on the cargo hold, by the cargo hold
The positive peak E3 of principal dimensions standard of tolerance is decomposed in each cargo hold segmentation.In the step S30, it is segmented according to each stern
The positive peak E4 of the stern principal dimensions standard of tolerance is decomposed to each stern point by the shared dimension scale on the stern
Duan Shang.The positive peak of hull principal dimension standard of tolerance is distributed according to dimension scale to fore body, cabin, cargo hold and stern first
Portion, to obtain the positive peak of the standard of tolerance of fore body, cabin, cargo hold and stern respectively, then respectively by the fore body obtained, machine
The positive peak of the principal dimensions standard of tolerance in cabin, cargo hold and stern be respectively allocated to fore body segmentation, cabin segmentation, cargo hold segmentation and
Stern is segmented, and tolerance when hull manufacture can have not only been met by the distribution of size twice, but also manufactured hull can be improved
Precision.
In the present embodiment, in the step S40, hull each section section is closed up into mouthful welded gaps and welding contraction
The difference of amount is compared with hull each section segment standard tolerance positive peak of corresponding position, if the difference is equal to corresponding position
The hull each section segment standard tolerance positive peak set, then the compensation rate of hull each section section is zero；If the difference be more than pair
Answer hull each section segment standard tolerance positive peak of position equal, then the compensation rate of hull each section section is negative value；If described
Hull each section segment standard tolerance positive peak that difference is less than corresponding position is equal, then the compensation rate of hull each section section is just
Value.In the step S30, by being collected and surveyed to welding contraction data during Hull Welding design process and general assembly hull,
Close up mouthful welded gaps and the welding contracted quantity to obtain hull each section section.
In the present embodiment, the segmentation of all fore bodies, cabin segmentation, cargo hold segmentation and stern segmentation collectively constitute hull point
Section.
In the Specific construction of the present embodiment, after the compensation rate for determining hull each section section, Specific construction
When, further include following steps,
(1) each body section includes multiple components, and each structure is determined according to the compensation rate of the body section
The welding compensation rate of part；Wherein, it is to correspond to body section according to each component in the welding compensation rate of each component of determination
What upper shared dimension scale was determined.
(2) the blanking compensation rate of counterpart member is determined according to the welding compensation rate of each component.Under wherein each component
Expect that the welding compensation rate that compensation rate is counterpart member, processing heat compensation amount, cutting compensation rate, design error compensation rate and assembly are mended
The sum of the amount of repaying.The present invention is determined according to the compensation rate of the calculated body section of institute each in each body section forms component
Blanking compensation rate, it is ensured that the precision of manufactured each component, by the control to compensation rate needed for each component, simultaneously
Consider the compensation rate needed for fore body, cabin, cargo hold and the stern of body section and hull, and then obtains the benefit needed for hull
The amount of repaying.
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 improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of computational methods of body section compensation rate, which is characterized in that include the following steps：
S10, the positive peak E for obtaining hull principal dimension standard of tolerance, and distribute to each portion of hull, to obtain the mark in each portion of hull
The positive peak E1 of quasi- tolerance ..., EN, wherein E=E1+ ...+EN, N >=2；
S20, obtain hull each portion functional tolerance positive peak, by the positive peak and ship of the standard of tolerance in each portion of hull
The positive peak of the functional tolerance in each portion of body is compared and takes wherein smaller value as the principal dimensions standard in each portion of hull
The positive peak of tolerance；
Wherein, the shipbuilding tolerance standard that the functional tolerance is formulated for the performance requirement of foundation ship；
S30, the positive peak of the principal dimensions standard of tolerance in each portion of the hull is decomposed in the segmentation in each portion of hull, and respectively
Determine the standard of tolerance positive peak D of hull each section section；
The difference X for closing up mouthful welded gaps and welding contracted quantity of hull each section section is calculated one by one；
It is S40, the difference for closing up mouthful welded gaps and welding contracted quantity in each portion of the hull and hull each section segment standard is public
Poor positive peak is compared, and the size Y of the compensation rate of hull each section section is determined according to comparison result, wherein Y=D-
X。
2. the computational methods of body section compensation rate according to claim 1, which is characterized in that the hull includes bow
Portion, cabin, cargo hold and stern, wherein the positive peak E1 of fore body standard of tolerance, positive peak E2, the goods of cabin standard of tolerance
The positive peak E3 of cabin standard of tolerance, the positive peak E4, E=E1+E2+E3+E4 of stern standard of tolerance.
3. the computational methods of body section compensation rate according to claim 2, which is characterized in that in the step S30, root
According to each fore body segmentation shared dimension scale on the fore body, by E1 points of the positive peak of the fore body principal dimensions standard of tolerance
Solution to each fore body is segmented.
4. the computational methods of body section compensation rate according to claim 2, which is characterized in that in the step S30, root
According to each cabin segmentation shared dimension scale in the cabin, by E2 points of the positive peak of the cabin principal dimensions standard of tolerance
Solution to each cabin is segmented.
5. the computational methods of body section compensation rate according to claim 2, which is characterized in that in the step S30, root
According to each cargo hold segmentation shared dimension scale on the cargo hold, by E3 points of the positive peak of the cargo hold principal dimensions standard of tolerance
Solution to each cargo hold is segmented.
6. the computational methods of body section compensation rate according to claim 2, which is characterized in that in the step S30, root
According to each stern segmentation shared dimension scale on the stern, by E4 points of the positive peak of the stern principal dimensions standard of tolerance
Solution to each stern is segmented.
7. the computational methods of body section compensation rate according to claim 2, which is characterized in that, will in the step S40
The difference for closing up mouthful welded gaps and welding contracted quantity of hull each section section and hull each section segment mark of corresponding position
Quasi- tolerance positive peak is compared, if the difference is equal to hull each section segment standard tolerance positive peak of corresponding position,
Then the compensation rate of hull each section section is zero；If the difference is being more than hull each section segment standard tolerance maximum of corresponding position just
Be worth it is equal, then the compensation rate of hull each section section be negative value；If the difference is less than hull each section segment standard of corresponding position
Tolerance positive peak is equal, then the compensation rate of hull each section section is positive value.
8. the computational methods of body section compensation rate according to claim 2, which is characterized in that in the step S30, lead to
It crosses and is collected and surveyed to welding contraction data during Hull Welding design process and general assembly hull, to obtain each portion of the hull
Mouthful welded gaps and the welding contracted quantity are closed up in segmentation.
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| CN110091958A (en) * | 2019-05-08 | 2019-08-06 | 大连辽南船厂 | Hull section non-allowance building technology method |
| CN110588884A (en) * | 2019-09-25 | 2019-12-20 | 江苏扬子鑫福造船有限公司 | High-precision allowance-free control process for large bow |
| CN113704892A (en) * | 2021-09-01 | 2021-11-26 | 江南造船(集团)有限责任公司 | Process model generation method and system with added compensation amount and groove and terminal |
| CN114872855A (en) * | 2022-06-27 | 2022-08-09 | 上海外高桥造船有限公司 | Permanent compensation adding and placing method for cruise ship |
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| CN113704892A (en) * | 2021-09-01 | 2021-11-26 | 江南造船(集团)有限责任公司 | Process model generation method and system with added compensation amount and groove and terminal |
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Application publication date: 20180921 |