CN110489882A - A kind of intellectualized design method of marine float mooring line - Google Patents
A kind of intellectualized design method of marine float mooring line Download PDFInfo
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- CN110489882A CN110489882A CN201910778449.3A CN201910778449A CN110489882A CN 110489882 A CN110489882 A CN 110489882A CN 201910778449 A CN201910778449 A CN 201910778449A CN 110489882 A CN110489882 A CN 110489882A
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- mooring line
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- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/12—Computing arrangements based on biological models using genetic models
- G06N3/126—Evolutionary algorithms, e.g. genetic algorithms or genetic programming
Abstract
The present invention relates to a kind of intellectualized design methods of marine float mooring line, entire flow and key technology based on mooring line design, design and analysis and the complete procedure of assessment are contained in method, mooring line detailed design, Mechanics Calculation, Performance Evaluation and intelligent optimization algorithm technology have been systematically combined, has been input to the mooring line detailed protocol that autonomous operation output has feasibility and function admirable from design requirement.This method have intelligentized characteristic and advantage, the autonomous evolution of process and scheme can be designed, complete scheme intelligentized design and preferably；Without manual operation, the automation of entire design analysis process is realized.This method is suitable in engineering the design and optimization of floating body mooring line under the conditions of varying environment.
Description
Technical field
The present invention relates to marine mooring line technical field, especially a kind of intelligentized design side of marine float mooring line
Method.
Background technique
Mooring positioning is the key technology of floating body Project Realization and safety work, in the prior art, the design of floating body mooring line
Universal method is generally used, condition analysis, floating body Calculation of Hydrodynamic specially need to be artificially designed, on the basis of the above, knot
It closes engineer experience and carries out the design of anchoring system tentative programme, reapply business software and carry out Digital calculation modelling, according to performance
Assessment result carries out project setting and optimization, is recycled to numerical value and calculates, assesses, adjusting and optimizing, the circulation through excessive round obtains
Final preferably mooring scheme out.This universal method has following defects that
The balance being based substantially between engineer experience, each design parameter be difficult to it is accurate and it is systemic hold, design evaluation with
Optimization process need to iterate, working efficiency is low and time-consuming.
With the development of technology and the raising of engineering demand, intelligentized design become the inexorable trend of technology development, knot
Modernism is applied to engineering field and improves design efficiency by the floating body mooring line design for closing intelligent optimization algorithm, at present in state
It is inside and outside not have ready-made floating body mooring line intellectualized design method also.
Summary of the invention
For the disadvantage in above-mentioned existing production technology, the intelligence for providing a kind of marine float mooring line is set the applicant
Meter method realizes the automation of entire design analysis process without manual operation.
The technical solution adopted in the present invention is as follows:
A kind of intellectualized design method of marine float mooring line, including following operating procedure:
Step 1: the sample point based on mooring line length fits semiempirical formula, it is specific as follows:
p1=659.19 × e-0.06×ω (2)
p2=0.0103 × e-0.004×ω (3)
p3=0.0019 × e-0.001×ω (4)
q1=-1399.8 × e-0.003×ω (6)
q2=14.561 × e-0.003×ω (7)
q3=6.0078 × e-0.004×ω (8)
Step 2: design condition and independently analysis: input design condition, according to the environmental parameter of design requirement, automatic point
Analysis obtains permanent environmental load suffered by floating body and wind-force, stream force coefficient；Based on the mooring material database established, determine
Mooring material properties parameter；In conjunction with permanent environmental load, the suggested range of mooring line length is determined based on formula (1)~(4), is based on
Formula (5)~(8) determine the suggested range of mooring radius；According to floating body type and mooring form, mooring point coordinate is specified；
Step 3: preliminary design scheme generates: according to environmental load, safety coefficient, determine mooring line minimum rupture strength,
According to selection combined data library, minimum weight needed for analyzing mooring line and each material properties parameter, in this, as intelligence
Change the initial scheme population of design；
Step 4: performance evaluation and engineering and normal constraint Conditions Evaluation: carrying out the calculating of floating body and mooring line, with mooring
Cable restoring force effect energy is right in conjunction with constraint conditions such as classification society rule and engineering experiences as function admirable evaluation criteria
The comprehensive performance of each mooring scheme is analyzed；
The anchoring system scheme for being unsatisfactory for each constraint condition is eliminated one by one in the initial stage, each constraint condition is through whole
A process；
Step 5: scheme preferably with Evolution of Population: in conjunction with mooring line Mechanics Calculation, Performance Evaluation and genetic algorithm Yu Benzhi
It can change in design method, since initial mooring line scheme, generate the scheme population of every generation, be assessed by calculating with analysis,
The adaptation value function for forming every generation mooring scheme population carries out the evolution of population using genetic operator of algorithm etc., retains full
Sufficient condition and the high anchoring system scheme individual of adaptive value eliminate the condition that is unsatisfactory for or the relatively low scheme individual of adaptive value,
Follow-on mooring line scheme population is generated, by iteration and constantly evolution, up to algorithmic statement and obtains optimal mooring line side
Case；
Step 6: mooring line scheme exports: the mooring line scheme that output intelligentized design is obtained, and provide detailed side
Case parameter, the dry measure of design length, mooring radius, seabed anchor point coordinate position and selection including mooring line, weight in wet base, just
The attribute of degree, fracture tension.
Its further technical solution is:
In the first step, Fe、h、w、Lmoor、RmoorFor environmental load, the depth of water, mooring line weight in wet base, mooring line length, mooring half
Diameter, fitting result and sample point comparison coincide, and in method, provide mooring line length and mooring radius by semiempirical formula
It is recommended that standard, realizes the preferred function of intelligence based on this.
Beneficial effects of the present invention are as follows:
Structure of the invention is compact, reasonable, easy to operate, by the entire flow and key technology designed based on mooring line,
Design and analysis and the complete procedure of assessment are contained in method, be systematically combined mooring line detailed design, Mechanics Calculation,
Performance Evaluation and intelligent optimization algorithm technology, being input to autonomous operation output from design requirement has feasibility and function admirable
Mooring line detailed protocol.
This method has intelligentized characteristic and advantage, can be designed the autonomous evolution of process and scheme, completes scheme
Intelligentized design and preferably；Without manual operation, the automation of entire design analysis process is realized.This method is suitable for engineering
The design and optimization of floating body mooring line under the conditions of middle varying environment.
Meanwhile the present invention is also equipped with following advantage:
(1) the floating body mooring line intellectualized design method that the present invention establishes, combines mooring line design, Mechanics Calculation, property
Can assess can be designed the mooring line scheme with feasibility and function admirable with intelligent optimization algorithm technology, application method.
(2) method established by the present invention, complete design require input after, it can be achieved that entirely design analysis process from
Dynamicization is input to autonomous operation output from design condition, is not necessarily to human intervention.
(3) it is big needed for project setting from being designed into greatly to have saved mooring line in engineering for method established by the present invention
The work of amount and time cost improve the efficiency of mooring line design work.
(4) present invention is suitable for that offshore engineering, the detailed protocol of the mooring line of floating structure positioning is set in ocean engineering
Meter.
Detailed description of the invention
Fig. 1 independently analyzes for mooring line design condition of the present invention and initial scheme population production Methods figure.
Fig. 2 is that the present invention is based on the mooring line intellectualized design method flow charts of genetic algorithm.
Fig. 3 is the mooring line diagram that offshore floating type of the present invention transports oil storage ship and intelligentized design.
Fig. 4 is the mooring line for the single full anchor chain ingredient that application method intelligentized design of the present invention goes out.
Fig. 5 is anchor chain-wirerope-anchor chain three-stage mooring line that application method intelligentized design of the present invention goes out.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As depicted in figs. 1 and 2, the intellectualized design method of the marine float mooring line of the present embodiment, including operate as follows
Step:
Step 1: the sample point based on mooring line length fits semiempirical formula, it is specific as follows:
p1=659.19 × e-0.006×ω (2)
p2=0.0103 × e-0.004×ω (3)
p3=0.0019 × e-0.001×ω (4)
q1=-1399.8 × e-0.003×ω (6)
q2=14.561 × e-0.003×ω (7)
q3=6.0078 × e-0.004×ω (8)
In the first step, Fe、h、ω、Lmoor、RmoorRespectively environmental load, the depth of water, mooring line weight in wet base, mooring line length, be
Radius is moored, fitting result and sample point comparison coincide, and in method, provide mooring line length and mooring half by semiempirical formula
The suggestion standard of diameter realizes the preferred function of intelligence based on this.
Step 2: design condition and independently analysis: input design condition, according to the environmental parameter of design requirement, automatic point
Analysis obtains permanent environmental load suffered by floating body and wind-force, stream force coefficient；Based on the mooring material database established, determine
Mooring material properties parameter；In conjunction with permanent environmental load, the suggested range of mooring line length is determined based on formula (1)~(4), is based on
Formula (5)~(8) determine the suggested range of mooring radius；According to floating body type and mooring form, mooring point coordinate is specified；
Step 3: preliminary design scheme generates: according to environmental load, safety coefficient, determine mooring line minimum rupture strength,
According to selection combined data library, minimum weight needed for analyzing mooring line and each material properties parameter, in this, as intelligence
Change the initial scheme population of design；
Step 4: performance evaluation and engineering and normal constraint Conditions Evaluation: carrying out the calculating of floating body and mooring line, with mooring
Cable restoring force effect energy is right in conjunction with constraint conditions such as classification society rule and engineering experiences as function admirable evaluation criteria
The comprehensive performance of each mooring scheme is analyzed, and will be unsatisfactory for the anchoring system scheme of each constraint condition one by one in the initial stage
It eliminates, each constraint condition is through whole process；
Step 5: scheme preferably with Evolution of Population: in conjunction with mooring line Mechanics Calculation, Performance Evaluation and genetic algorithm Yu Benzhi
It can change in design method, since initial mooring line scheme, generate the scheme population of every generation, be assessed by calculating with analysis,
The adaptation value function for forming every generation mooring scheme population carries out the evolution of population using genetic operator of algorithm etc., retains full
Sufficient condition and the high anchoring system scheme individual of adaptive value eliminate the condition that is unsatisfactory for or the relatively low scheme individual of adaptive value,
Follow-on mooring line scheme population is generated, by iteration and constantly evolution, up to algorithmic statement and obtains optimal mooring line side
Case；
Step 6: mooring line scheme exports: the mooring line scheme that output intelligentized design is obtained, and provide detailed side
Case parameter, the dry measure of design length, mooring radius, seabed anchor point coordinate position and selection including mooring line, weight in wet base, just
The attribute of degree, fracture tension.
In practical work process, specific implementation process is as follows:
As shown in figure 3, transporting oil storage ship for an offshore floating type, ship type parameter joins table 1, and design condition joins table 2, using this
The intellectualized design method of marine float mooring line designs mooring line scheme.
Firstly, design item simultaneously independently analyze by part: input design condition is automatically analyzed according to the environmental parameter of design requirement
Obtain permanent environmental load suffered by floating body and wind-force, stream force coefficient；
Based on the mooring material database established, mooring material properties parameter is determined；
In conjunction with permanent environmental load, the suggested range of mooring line length is determined based on formula (1)~(4), based on formula (5)~
(8) suggested range of mooring radius is determined；
According to floating body type and mooring form, mooring point coordinate is specified.
Then, preliminary design scheme generates: according to environmental load, safety coefficient, determine mooring line minimum rupture strength, according to
According to selection combined data library, minimum weight needed for analyzing mooring line and each material properties parameter, in this, as intelligence
The initial scheme population of design.Detailed process is as shown in Figure 1.
Subsequently, performance evaluation and engineering and normal constraint Conditions Evaluation: carry out the calculating of floating body and mooring line, with mooring
Cable restoring force effect energy is right in conjunction with constraint conditions such as classification society rule and engineering experiences as function admirable evaluation criteria
The comprehensive performance of each mooring scheme is analyzed.To be under the kinematic constraint of floating body, mooring morphological requirements and different conditions
The mechanics constraint of cable is moored in addition in calculating each step, the anchoring system scheme of each constraint condition will be unsatisfactory for one by one in the initial stage
It eliminates, each constraint condition is through whole process.
Secondly, scheme preferably with Evolution of Population: in conjunction with mooring line Mechanics Calculation, Performance Evaluation and genetic algorithm in this intelligence
Change in design method, since initial mooring line scheme, generate the scheme population of every generation, is assessed by calculating with analysis, shape
At the adaptation value function of every generation mooring scheme population, the evolution of population is carried out using genetic operator of algorithm etc., is retained and is met
Condition and the high anchoring system scheme individual of adaptive value eliminate the condition that is unsatisfactory for or the relatively low scheme individual of adaptive value, raw
Optimal mooring line scheme up to algorithmic statement and is obtained by iteration and constantly evolution at follow-on mooring line scheme population.
Finally, mooring line scheme exports: the mooring line scheme that output intelligentized design is obtained, and provide detailed scheme
Parameter, the dry measure of design length, mooring radius, seabed anchor point coordinate position and selection including mooring line, weight in wet base, rigidity,
Be broken the attributes such as tension.
The process of above-mentioned whole process is as shown in Figure 2.
The mooring line example for the single full anchor chain ingredient that the lower intelligentized design of sea situation 1 goes out is as shown in figure 4, anchoring system is detailed
Parameter joins table 3.
Anchor chain-wirerope-anchor chain three-stage mooring line example that the lower intelligentized design of sea situation 2 goes out is as shown in figure 5, mooring system
Detail parameters of uniting join table 4.
1 offshore floating type of table transports oil storage ship parameter
2 ocean environment parameter of table
The mooring line parameter for the single full anchor chain ingredient that the lower intelligentized design of 3 sea situation 1 of table goes out
Anchor chain-wirerope-anchor chain three-stage mooring line parameter that the lower intelligentized design of 4 sea situation 2 of table goes out
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that within protection scope of the present invention, any type of modification can be made.
Claims (2)
1. a kind of intellectualized design method of marine float mooring line, it is characterised in that: including following operating procedure:
Step 1: the sample point based on mooring line length fits semiempirical formula, it is specific as follows:
p1=659.19 × e-0.006×ω (2)
p2=0.0103 × e-0.004×ω (3)
p3=0.0019 × e-0.001×ω (4)
q1=-1399.8 × e-0.003×ω (6)
q2=14.561 × e-0.003×ω (7)
q3=6.0078 × e-0.004×ω (8)
Step 2: design condition and independently analysis: input design condition is automatically analyzed according to the environmental parameter of design requirement
Permanent environmental load suffered by floating body and wind-force, stream force coefficient out；Based on the mooring material database established, mooring is determined
Material properties parameter；In conjunction with permanent environmental load, the suggested range of mooring line length is determined based on formula (1)~(4), is based on formula
(5)~(8) determine the suggested range of mooring radius；According to floating body type and mooring form, mooring point coordinate is specified；
Step 3: preliminary design scheme generates: according to environmental load, safety coefficient, determining mooring line minimum rupture strength, foundation
Selection combined data library, minimum weight needed for analyzing mooring line and each material properties parameter, set in this, as intelligence
The initial scheme population of meter；
Step 4: performance evaluation and engineering and normal constraint Conditions Evaluation: carrying out the calculating of floating body and mooring line, returned with mooring line
Multiple power effect energy is as function admirable evaluation criteria, in conjunction with constraint conditions such as classification society rule and engineering experiences, to each
The comprehensive performance of mooring scheme is analyzed.By mooring line under the kinematic constraint of floating body, mooring morphological requirements and different conditions
Mechanics constraint in addition in calculating each step, the anchoring system scheme for being unsatisfactory for each constraint condition is washed in a pan one by one in the initial stage
It eliminates, each constraint condition is through whole process；
Step 5: scheme preferably with Evolution of Population: in conjunction with mooring line Mechanics Calculation, Performance Evaluation and genetic algorithm in this intelligence
In design method, since initial mooring line scheme, the scheme population of every generation is generated, is assessed by calculating with analysis, is formed
The adaptation value function of every generation mooring scheme population, the evolution of population is carried out using genetic operator of algorithm etc., and reservation meets item
Part and the high anchoring system scheme individual of adaptive value are eliminated the condition that is unsatisfactory for or the relatively low scheme individual of adaptive value, are generated
Follow-on mooring line scheme population up to algorithmic statement and obtains optimal mooring line scheme by iteration and constantly evolution；
Step 6: mooring line scheme exports: the mooring line scheme that output intelligentized design is obtained, and provide detailed scheme ginseng
Number, the dry measure of design length, mooring radius, seabed anchor point coordinate position and selection including mooring line, rigidity, are broken at weight in wet base
The attribute of disconnected tension.
2. a kind of intellectualized design method of marine float mooring line as described in claim 1, it is characterised in that: the first step
In, Fe、h、ω、Lmoor、RmoorFor environmental load, the depth of water, mooring line weight in wet base, mooring line length, mooring radius, fitting result with
Sample point comparison coincide, and in method, the suggestion standard of mooring line length Yu mooring radius is provided by semiempirical formula, with
The preferred function of intelligence is realized based on this.
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| CN201910778449.3A CN110489882B (en) | 2019-08-22 | 2019-08-22 | Intelligent design method for offshore floating body mooring cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111814252A (en) * | 2020-07-09 | 2020-10-23 | 上海雄程海洋工程股份有限公司 | Parameter determination method for asymmetric mooring system |
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| CN103295078A (en) * | 2013-05-21 | 2013-09-11 | 中国海洋石油总公司 | Structural design optimization method for deepwater catenary mooring rope |
| CN106777742A (en) * | 2016-12-28 | 2017-05-31 | 合肥学院 | A kind of anchoring system design methods based on many components |
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2019
- 2019-08-22 CN CN201910778449.3A patent/CN110489882B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295078A (en) * | 2013-05-21 | 2013-09-11 | 中国海洋石油总公司 | Structural design optimization method for deepwater catenary mooring rope |
| CN106777742A (en) * | 2016-12-28 | 2017-05-31 | 合肥学院 | A kind of anchoring system design methods based on many components |
Non-Patent Citations (2)
| Title |
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| 丁军等: "近岛礁浅水环境下浮式平台系泊系统设计研究", 《船舶力学》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111814252A (en) * | 2020-07-09 | 2020-10-23 | 上海雄程海洋工程股份有限公司 | Parameter determination method for asymmetric mooring system |
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