CN115587428A - Ship sectional hoisting process design method, computer storage medium and equipment - Google Patents

Ship sectional hoisting process design method, computer storage medium and equipment Download PDF

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CN115587428A
CN115587428A CN202211362073.6A CN202211362073A CN115587428A CN 115587428 A CN115587428 A CN 115587428A CN 202211362073 A CN202211362073 A CN 202211362073A CN 115587428 A CN115587428 A CN 115587428A
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朱文敏
杨骏
王杰
单小芬
杜吉旺
雷洪涛
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Jiangnan Shipyard Group Co Ltd
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Abstract

The application relates to the technical field of ship design, in particular to a ship sectional hoisting process design method, a computer storage medium and equipment. By constructing process knowledge systems of different hoisting modes, the correlation between the ship sectional structure and the hoisting process is determined, and the matching and reasoning rules of the sectional structure characteristics and the hoisting process are constructed; establishing a multi-target solving framework integrating lifting point design and deformation control; taking the target ship segment as input, performing numerical simulation calculation and analysis by using the established integrated multi-target solving frame to obtain a hoisting process design recommendation scheme, and obtaining a final hoisting process design scheme after manual checking and adjustment; the design scheme of the hoisting process is prevented from being manually determined by designers, so that the design efficiency and the design accuracy are improved, and the design period is shortened.

Description

Ship sectional hoisting process design method, computer storage medium and equipment
Technical Field
The application relates to the technical field of ship design, in particular to a ship sectional hoisting process design method, a computer storage medium and equipment.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The modern shipbuilding mode mainly adopts a sectional construction process, and sectional hoisting is one of important works and directly influences the cycle and quality of ship construction. The design of the hoisting scheme is a complex design process of comprehensively considering factors such as ship sectional structures, hoisting equipment parameters, operation processes and the like and carrying out iterative optimization according to the flow of 'hoisting point design → strength check → deformation control', and directly determines whether hoisting operation can be carried out safely and efficiently. The strength checking technology is relatively mature, stress and deformation of the segments during hoisting are analyzed mainly through finite element numerical simulation, and hoisting point design and deformation control are mainly based on empirical estimation, namely, the number, position and structure reinforcing schemes and the like of the hoisting points are determined manually, so that the problems of low efficiency, low economy and low reliability exist, the phenomena of serious material waste, easy deformation and fracture of the segments, high difficulty in later construction and correction, potential safety hazards and the like are caused, and the increasingly refined operation requirements are difficult to meet.
Disclosure of Invention
The embodiment of the application aims to provide a design method of a ship section hoisting process, which is used for improving the design efficiency of the ship section hoisting process.
It is another object of the embodiments of the present application to provide a computer storage medium for implementing the above design method.
Another object of the embodiments of the present application is to provide a computer device for implementing the above design method.
In a first aspect, a ship sectional hoisting process design method is provided, which comprises the following steps:
step 1: a ship segmental hoisting process system and a hoisting process design process are combed, and a process knowledge system of each hoisting mode is constructed;
step 2: the correlation between the ship sectional structure and the ship sectional hoisting process system in the step 1 is determined, the matching and reasoning rules of the sectional structure characteristics and the ship sectional hoisting process are established, and the corresponding hoisting process can be automatically matched and deduced according to the ship sectional structure by using a correlation knowledge matching and knowledge reasoning method;
and step 3: determining each element of a hoisting scheme design, and establishing a multi-target solving framework integrating hoisting point design and deformation control;
and 4, step 4: taking relevant information of the target ship segment as input parameter information, and obtaining a primary design scheme of a hoisting process based on a process knowledge system, the matching and reasoning rules of the segment structure characteristics in the step 2 and the ship segment hoisting process;
carrying out numerical simulation calculation and analysis by using the established multi-target solving frame and taking the hoisting process design preliminary scheme as an initial parameter to obtain a hoisting process design recommended scheme, and manually checking and adjusting the hoisting process design recommended scheme to obtain the hoisting process design scheme;
and 5: and storing the design scheme of the hoisting process and the corresponding ship segmentation information into a hoisting process knowledge base so as to support the subsequent hoisting process design.
In one possible embodiment, step 1 comprises:
step 11: the sectional hoisting process system for the carding ship comprises the following steps: selecting from a segmented structure, a hoisting sequence, a hoisting point design, strength check, deformation control, a hoisting horse type, hoisting equipment, a hoisting lockset and a hoisting mode to further clarify the content related to the design of the ship segmented hoisting process;
determining a hoisting process design process, decomposing the hoisting process design process into assignment of a task book, hoisting process design and design scheme checking and optimization, and determining the content, input and output of each process;
step 12: and (3) collecting hoisting process knowledge, namely collecting the hoisting process knowledge comprising various semi-structured, structured and unstructured process knowledge information through on-site investigation and interview of a ship sectional hoisting design department and a ship sectional hoisting construction department.
Step 13: the hoisting process knowledge is expressed, and proper language is selected from common knowledge description languages to express the hoisting process knowledge;
step 14: extracting the knowledge of the multi-source heterogeneous process, namely extracting the knowledge from the multi-source heterogeneous data source based on the hoisting process knowledge expression method in the step 13 to obtain structured hoisting process knowledge;
step 15: the method comprises the steps of process knowledge fusion and process knowledge system visualization, analysis, recognition, understanding and association are carried out on hoisting process knowledge, knowledge fusion processing is carried out on redundant data in the hoisting process knowledge, useful process knowledge is obtained, and a process knowledge system covering different hoisting modes is constructed.
In one possible implementation, the process knowledge system is visually displayed using a visualization tool in step 15.
In one possible embodiment, step 2 comprises:
step 21: determining the contents contained in the ship section structure characteristics, including the ship section type, the ship section weight center of gravity and the ship section strong frame structure distribution;
step 22: automatically extracting ship segmentation structure characteristics from the ship segmentation three-dimensional model, and developing an automation program aiming at used ship design software to realize automatic extraction of segmented structure characteristic information from the ship segmentation three-dimensional model;
step 23: analyzing the correlation between the ship sectional structure and the hoisting process;
step 24: the matching and reasoning of the hoisting process knowledge and the ship section are realized, and the corresponding hoisting process can be automatically matched and deduced according to the ship section structure by using the related hoisting process knowledge matching and hoisting process knowledge reasoning method.
In one possible embodiment, step 3 comprises:
step 31: the factors considered in the design of the ship sectional hoisting process comprise: ship section structure, hoisting equipment parameters and operation process requirements; establishing a multi-target solving framework integrating lifting point design and deformation control, wherein the design target comprises safety, economy and process applicability, the design variables comprise the number and the positions of lifting points, the types of lifting horses, the forms of supporting sectional materials and the forms of reinforcing sectional materials, and an integrated multi-target solving target function and a constraint equation are established;
step 32: determining a solving algorithm of a solving framework, and integrating lifting field knowledge in the algorithm step.
In one possible embodiment, step 4 comprises:
step 41: the method for sorting the related information of the segmented hoisting of the target ship comprises the following steps: the ship segmentation three-dimensional model, the hoisting mode and the hoisting equipment parameters are used, and the sorted data are used as input parameters for knowledge matching and reasoning;
step 42: and obtaining a primary design scheme of the hoisting process, including the number and the positions of hoisting points and the types of hoisting horses, based on a process knowledge system and by combining a knowledge matching and reasoning method according to the input parameter information.
Step 43: the multi-objective solving framework carries out numerical simulation calculation and analysis by taking the initial hoisting process design scheme as initial parameters, design variables comprise the number and positions of hoisting points, the types of hoisting horses, the forms of supporting profiles and the forms of reinforcing profiles in the solving process, and the hoisting process design recommendation scheme is obtained through repeated iterative calculation and optimization.
And 44, manually checking and adjusting the recommended hoisting process design scheme to obtain a final hoisting process design scheme.
In one possible embodiment, step 5 comprises:
step 51: arranging the final design scheme of the hoisting process;
step 52: correcting a hoisting process scheme according to the actual hoisting condition of the target ship segment;
step 53: and carrying out knowledge expression and storage on the ship section information and the corresponding hoisting process scheme, and expanding a process knowledge system.
In a second aspect, a computer storage medium is provided, which stores a computer program, and when the program is executed by a processor, the method for designing a ship segment hoisting process according to any one of the possible embodiments of the first aspect is implemented.
In a third aspect, a computer device is provided, comprising:
a memory and a processor, wherein the memory stores a computer program, and the program is executed by the processor to implement the ship segment hoisting process design method described in any one of the possible embodiments of the first aspect.
The beneficial effect of this application: constructing process knowledge systems of different hoisting modes by combing ship sectional hoisting process systems and hoisting process design processes, determining the correlation between a ship sectional structure and a hoisting process, and constructing matching and reasoning rules of sectional structure characteristics and the hoisting process; comprehensively considering all elements in the design of a ship hoisting scheme, and establishing a multi-target solving frame integrating hoisting point design and deformation control; taking the target ship segment as input, performing numerical simulation calculation and analysis by using the established integrated multi-target solving frame to obtain a hoisting process design recommendation scheme, and obtaining a final hoisting process design scheme after manual checking and adjustment; storing the final hoisting process design scheme and the corresponding ship segmentation information into a hoisting process knowledge base so as to support the subsequent hoisting process design process; the design scheme of the hoisting process is prevented from being manually determined by designers, so that the design efficiency and the design accuracy are improved, and the design period is shortened.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a general idea of a design method of a ship sectional hoisting process in the embodiment of the invention;
FIG. 2 is a flow chart of a design method of a ship sectional hoisting process in the embodiment of the invention;
FIG. 3 is a flow chart of a knowledge system of a ship sectional hoisting process constructed in the embodiment of the invention;
FIG. 4 is a flow chart of automatic matching and reasoning of the sectional structure characteristics and the hoisting process in the embodiment of the invention;
FIG. 5 is a flow chart of establishing a lifting point design and deformation control integrated multi-objective solution framework in the embodiment of the present invention;
FIG. 6 is a flow chart of the design scheme of the hoisting process determined in the embodiment of the invention;
fig. 7 is a flowchart for saving the design scheme of the hoisting process in the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
According to a first aspect of the application, firstly, a ship sectional hoisting process design method is provided.
As shown in fig. 1 and 2, the design method of the ship sectional hoisting process comprises the following steps:
step 1: combing ship sectional hoisting process systems and hoisting process design processes, and constructing process knowledge systems of all hoisting modes;
step 2: the correlation between the ship sectional structure and the ship sectional hoisting process system in the step 1 is determined, the matching and reasoning rules of the sectional structure characteristics and the ship sectional hoisting process are established, and the corresponding hoisting process can be automatically matched and deduced according to the ship sectional structure by using a correlation knowledge matching and knowledge reasoning method;
and step 3: determining each element of a hoisting scheme design, and establishing a multi-target solving framework integrating hoisting point design and deformation control;
and 4, step 4: taking relevant information of the target ship segment as input parameter information, and obtaining a primary design scheme of a hoisting process based on a process knowledge system, the matching and reasoning rules of the segment structure characteristics in the step 2 and the ship segment hoisting process;
carrying out numerical simulation calculation and analysis by using the established multi-target solving frame and taking the hoisting process design preliminary scheme as an initial parameter to obtain a hoisting process design recommended scheme, and manually checking and adjusting the hoisting process design recommended scheme to obtain the hoisting process design scheme;
and 5: and storing the design scheme of the hoisting process and the corresponding ship segmentation information into a hoisting process knowledge base so as to support the subsequent hoisting process design.
In the step 1: the method comprises the steps of building a ship sectional hoisting process knowledge system, carding the ship sectional hoisting process system and the design process of a hoisting process, and building the process knowledge system covering different hoisting modes such as displacement, turning over, folding and the like. In this embodiment, the process knowledge system is embodied in the form of a map, i.e., a process knowledge map.
As shown in fig. 3, a flow of the step 1 is shown:
step 11: a ship block hoisting process system is combed, namely main contents related to ship block hoisting process design are determined from the aspects of block structure, hoisting sequence, hoisting point design, strength check, deformation control, hoisting horse type, hoisting equipment, hoisting lockset, hoisting mode and the like. The related content of the ship section hoisting process design is selected according to the actual condition of the ship section.
Determining a hoisting process design process, decomposing the hoisting process design process into assignment of a task book, hoisting process design and design scheme checking and optimization, and determining the main content, input and output of each process.
The task book issuing comprises the following steps: and issuing a segmentation model and information, issuing process requirements, hoisting equipment and parameters. The hoisting process design comprises the following steps: the method comprises the following steps of hoisting point arrangement design, hoisting horse type selection, hoisting lockset type selection, reinforcement design and the like. The design scheme checking and optimizing comprises the following steps: and manually determining the rationality of the hoisting scheme and optimizing the hoisting scheme.
The construction of the process knowledge graph covering different hoisting modes such as displacement, turning over, folding and the like comprises the following steps: the method comprises the steps of hoisting process knowledge collection, hoisting process knowledge expression, multi-source heterogeneous process knowledge extraction, process knowledge fusion and knowledge map visualization, and the hoisting process knowledge maps of displacement, turning over, folding and the like are constructed according to the knowledge processing method aiming at different hoisting modes. The method comprises the following specific steps:
step 12: and (3) collecting hoisting process knowledge, namely collecting hoisting process data including various semi-structured, structured and unstructured process knowledge information such as drawings, documents, three-dimensional models, videos and the like through field investigation and interview of departments such as ship sectional hoisting design, construction and the like.
Step 13: and (3) hoisting process knowledge expression, namely selecting a proper language from common knowledge Description languages such as Resource Description Framework (RDF) and Ontology (Ontology) to express the hoisting process knowledge.
Step 14: and extracting the knowledge of the multi-source heterogeneous process, namely extracting the knowledge from the multi-source heterogeneous data sources such as drawings, documents, three-dimensional models, videos and the like based on a hoisting process knowledge expression method to obtain the structured hoisting process knowledge.
Step 15: and the established hoisting process knowledge is analyzed, identified, understood and associated, redundant data in the process knowledge is subjected to knowledge fusion processing to obtain useful process knowledge, process knowledge systems of different hoisting modes such as spectrum coverage shift, turning over, folding and the like are established, and a visualization tool is used for visually displaying the process knowledge systems.
The step 2 specifically comprises the following steps: and realizing the steps of automatically matching and reasoning the sectional structure characteristics and the hoisting process, determining the correlation between the ship sectional structure and the hoisting process, and constructing the matching and reasoning rules of the sectional structure characteristics and the hoisting process.
The step 2 comprises the following steps: the method realizes the definition and automatic extraction of the characteristics of the ship segmental structure, the analysis of the correlation between the ship segmental structure and the hoisting process, and the matching and reasoning of process knowledge and ship segmentation.
The defining and automatic extraction of the ship section structure characteristics comprises the following steps: and the contents contained in the ship segmented structural features are determined, and the ship segmented structural features are automatically extracted from the ship segmented three-dimensional model. The ship section structure is characterized by comprising: the strong frame structure of boats and ships segmentation type, boats and ships segmentation weight focus, boats and ships segmentation distributes, and wherein, the boats and ships segmentation type includes: bottom segment, bulkhead segment, side segment, deck segment, fore-aft segment, superstructure, and the like.
The correlation analysis of the ship sectional structure and the hoisting process comprises the following steps: determining lifting point design methods, lifting cautions, recommended lifting equipment and structure strengthening schemes corresponding to different ship sectional structures.
The matching and reasoning rules for realizing the sectional structure characteristics and the hoisting process comprise the following steps: and matching a corresponding hoisting process according to the ship structure type, and reasoning the corresponding hoisting process according to the ship structure type.
As shown in fig. 4, a flow of the step 2 is shown:
step 21: the structural characteristics of the ship section are defined, namely the section structure is described in three aspects from the type of the ship section, the gravity center of the ship section and the distribution of the strong frame structure of the ship section, for example, the type of the ship section is a bottom section, the weight is 150 tons, the coordinate of the gravity center in the whole ship coordinate system is (57010.40mm, 4197.06mm, 6749.42mm), and the strong frame structure is FR128, FR133, FR136 and FR144 respectively.
Step 22: the ship segmentation structure characteristics are automatically extracted from the ship segmentation three-dimensional model, and an automation program is developed aiming at used ship design software (such as TRIBON and CATIA), so that the segmentation structure characteristic information is automatically extracted from the ship segmentation three-dimensional model.
Step 23: and analyzing the correlation between the ship sectional structure and the hoisting process, and determining the correlation between the ship sectional structure and the hoisting process according to analysis of hoisting point design methods, hoisting caution items, recommended hoisting equipment, structure strengthening schemes and the like corresponding to different ship sectional structures.
Step 24: the matching and reasoning of the process knowledge and the ship section are realized, and the corresponding hoisting process can be automatically matched and deduced according to the ship section structure by using the relevant knowledge matching and knowledge reasoning method.
The step 3 specifically comprises the following steps: and establishing a multi-target solving framework integrating lifting point design and deformation control, comprehensively considering all elements in ship lifting scheme design, and establishing the multi-target solving framework integrating lifting point design and deformation control.
As shown in fig. 5, a flow of step 3 is shown:
step 31: elements which must be considered in the design of the ship sectional hoisting process are defined and comprise: ship segment structure, hoisting equipment parameters, operation process requirements and the like.
The method comprises the steps of establishing a multi-target solving framework integrating lifting point design and deformation control, taking safety, economy and process applicability as design targets, taking the number, positions, types of lifting horses, forms of supporting profiles, forms of reinforcing profiles and the like as design variables, taking construction of finite element models as a basis, and constructing an integrated multi-target solving objective function and a constraint equation on the basis of sectional lifting process knowledge.
The input conditions of the multi-target solving framework are specifically as follows: ship segmentation three-dimensional model, hoisting process, hoisting equipment parameters and other processes. The hoisting process comprises the number of hoisting points, the positions of the hoisting points, the types of hoisting horses, the form of a supporting section bar and the form of a reinforcing section bar. The parameters of the hoisting equipment comprise the maximum load bearing of the crane, the maximum load bearing of each lifting hook, the distance range and the angle range between the lifting hooks. Other processes include hoisting path, hoisting speed, wind speed requirements, and the like.
Step 32: the solving algorithm of the solving framework is determined, the solving can be carried out by adopting a common multi-objective intelligent optimization algorithm such as a genetic algorithm, a particle swarm algorithm and the like, and the hoisting field knowledge (such as hoisting span, hoisting point distribution rule and reinforcement model) is integrated in the algorithm steps, so that the searching efficiency of the solution space is improved.
For example, the following steps are carried out: the initial design scheme is that 6 lifting points are set, the positions are p1 (x 1, y1, z 1), p2 (x 2, y2, z 2), p3 (x 3, y3, z 3), p4 (x 4, y4, z 4), p1 (x 5, y5, z 5), p6 (x 6, y6, z 6), and the types of the lifting horses are A, A, B, C, B and B. The method comprises the steps of fully considering constraints such as capacity and deformation size of hoisting equipment in an integrated solving frame, and carrying out finite element calculation analysis to obtain a final hoisting scheme, wherein 4 hoisting points are set, the positions of the hoisting points are q1 (xx 1, yy1 and zz 1), q2 (xx 2, yy2 and zz 2), q3 (xx 3, yy3 and zz 3), q4 (xx 4, yy4 and zz 4), and the types of hoisting horses are A, B, C and D.
The step 4 specifically comprises the following steps: and determining a hoisting process design scheme, taking the target ship segment as input, obtaining a hoisting process design recommendation scheme by utilizing the established integrated multi-target solving frame, and manually checking and adjusting the hoisting process design recommendation scheme to obtain a final hoisting process design scheme.
As shown in fig. 6, a flow of step 4 is shown:
step 41: the method for sorting the related information of the segmental hoisting of the target ship comprises the following steps: the method comprises the following steps of using a ship segmentation three-dimensional model, a hoisting mode, hoisting equipment parameters and the like as input parameters for knowledge matching and reasoning.
Step 42: and obtaining a primary hoisting process design scheme based on a process knowledge system and by combining a knowledge matching and reasoning method according to the input model parameter information, wherein the primary hoisting process design scheme comprises information such as the number and the position of hoisting points, the type of a hoisting horse, support and reinforcement.
Step 43: arranging relevant results of the initial hoisting process design scheme, and taking the results as input of a multi-target solving frame; the multi-objective solving framework carries out numerical simulation calculation and analysis by taking the initial hoisting process design scheme as initial parameters, and obtains a hoisting process design recommendation scheme by taking the number, the position, the number of hoisting horses, the form of supporting profiles, the form of reinforcing profiles and the like as design variables in the solving process and carrying out repeated iterative calculation and optimization.
Step 44: and manually checking and adjusting the recommended hoisting process design scheme to obtain the final hoisting process design scheme.
The step 5 specifically comprises the following steps: and storing the hoisting process design scheme, namely storing the final hoisting process design scheme and the corresponding ship segmentation information into a hoisting process knowledge base so as to support the subsequent hoisting process design process.
As shown in fig. 7, a flow of step 5 is shown:
step 51: and finishing the final design scheme of the hoisting process.
Step 52: and correcting the hoisting process scheme according to the actual hoisting condition of the target ship segment.
Step 53: and carrying out knowledge expression and storage on the ship section information and the corresponding hoisting process scheme, and expanding a process knowledge system.
In the integrated solving framework, multiple times of iterative calculation optimization are required, wherein the finite element model is the basis of calculation, and the change of parameters such as lifting point positions, lifting horse models and the like can be involved in each iteration, which can cause the change of the finite element model. Therefore, the finite element model must be constructed quickly, accurately and automatically to support iterative computation of the integrated solution framework.
In summary, compared with the prior art that when the ship sectional hoisting process design is carried out, hoisting point design and deformation control are mainly completed in a manual serial mode, the working efficiency is low, and the quality is difficult to guarantee, the ship sectional hoisting process design method integrating the process knowledge system and numerical simulation is provided, existing hoisting design knowledge and experience are fully utilized, integration of hoisting point design and deformation control is achieved, the workload of designers is reduced, the accuracy and efficiency of the design of a hoisting scheme are improved, the construction period is shortened, and the production cost is reduced, and the overall idea of the design method is shown in fig. 1.
According to the second aspect of the present application, there is also provided a computer storage medium storing a computer program, which when executed by a processor, implements the ship segment hoisting process design method according to any one of the embodiments of the first aspect.
Preferably, the storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
According to a third aspect of the present application, the present application further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the program, when executed by the processor, implements the ship segment hoisting process design method described in any one of the embodiments of the first aspect.
The memory includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk. A processor is coupled to the memory for executing the computer programs stored by the memory.
Preferably, the Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. A ship segmental hoisting process design method is characterized by comprising the following steps:
step 1: a ship segmental hoisting process system and a hoisting process design process are combed, and a process knowledge system of each hoisting mode is constructed;
step 2: the correlation between the ship sectional structure and the ship sectional hoisting process system in the step 1 is determined, the matching and reasoning rules of the sectional structure characteristics and the ship sectional hoisting process are established, and the corresponding hoisting process can be automatically matched and deduced according to the ship sectional structure by using a correlation knowledge matching and knowledge reasoning method;
and step 3: determining each element of the design of a hoisting scheme, and establishing a multi-target solving frame integrating hoisting point design and deformation control;
and 4, step 4: taking relevant information of the target ship segment as input parameter information, and obtaining a primary design scheme of a hoisting process based on a process knowledge system, the matching and reasoning rules of the segment structure characteristics in the step 2 and the ship segment hoisting process;
carrying out numerical simulation calculation and analysis by using the established multi-target solving frame and taking the hoisting process design preliminary scheme as an initial parameter to obtain a hoisting process design recommended scheme, and manually checking and adjusting the hoisting process design recommended scheme to obtain the hoisting process design scheme;
and 5: and storing the design scheme of the hoisting process and the corresponding ship segmentation information into a hoisting process knowledge base so as to support the subsequent hoisting process design.
2. The design method of the ship segment hoisting process according to claim 1, wherein the step 1 comprises the following steps:
step 11: the carding ship sectional hoisting process system comprises the following steps: selecting from a segmented structure, a hoisting sequence, a hoisting point design, strength check, deformation control, a hoisting horse type, hoisting equipment, a hoisting lockset and a hoisting mode to further clarify the content related to the design of the ship segmented hoisting process;
determining a hoisting process design process, decomposing the hoisting process design process into assignment of a task book, hoisting process design and design scheme checking and optimization, and determining the content, input and output of each process;
step 12: and (3) collecting hoisting process knowledge, namely collecting the hoisting process knowledge comprising various semi-structured, structured and unstructured process knowledge information through on-site investigation and interview of a ship sectional hoisting design department and a ship sectional hoisting construction department.
Step 13: hoisting process knowledge expression, namely selecting a proper language from common knowledge description languages to express the hoisting process knowledge;
step 14: extracting the knowledge of the multi-source heterogeneous process, namely extracting the knowledge from the multi-source heterogeneous data source based on the hoisting process knowledge expression method in the step 13 to obtain structured hoisting process knowledge;
step 15: the method comprises the steps of process knowledge fusion and process knowledge system visualization, analysis, recognition, understanding and association are carried out on hoisting process knowledge, knowledge fusion processing is carried out on redundant data in the hoisting process knowledge, useful process knowledge is obtained, and a process knowledge system covering different hoisting modes is constructed.
3. The design method of the ship sectional hoisting process according to claim 2, wherein in the step 15, a process knowledge system is visually displayed by using a visualization tool.
4. The design method of the ship segment hoisting process according to claim 1, wherein the step 2 comprises the following steps:
step 21: determining the contents contained in the ship section structure characteristics, including the ship section type, the ship section weight center of gravity and the ship section strong frame structure distribution;
step 22: automatically extracting ship subsection structural features from the ship subsection three-dimensional model, and developing an automation program aiming at used ship design software to realize the automatic extraction of subsection structural feature information from the ship subsection three-dimensional model;
step 23: analyzing the correlation between the ship sectional structure and the hoisting process;
step 24: the matching and reasoning of the hoisting process knowledge and the ship segment are realized, and the corresponding hoisting process can be automatically matched and deduced according to the ship segment structure by using the related hoisting process knowledge matching and hoisting process knowledge reasoning method.
5. The design method of the ship segment hoisting process according to claim 1, wherein the step 3 comprises the following steps:
step 31: the factors considered in the design of the ship sectional hoisting process comprise: ship block structure, hoisting equipment parameters and operation process requirements; establishing a multi-target solving framework integrating lifting point design and deformation control, wherein the design target comprises safety, economy and process applicability, the design variables comprise the number and the positions of lifting points, the types of lifting horses, the forms of supporting sectional materials and the forms of reinforcing sectional materials, and an integrated multi-target solving target function and a constraint equation are established;
step 32: determining a solving algorithm of a solving framework, and integrating lifting field knowledge in the algorithm step.
6. The design method of ship segment hoisting process according to claim 1,
step 4 comprises the following steps:
step 41: the method for sorting the related information of the segmental hoisting of the target ship comprises the following steps: the ship segmentation three-dimensional model, the hoisting mode and the hoisting equipment parameters are used, and the sorted data are used as input parameters for knowledge matching and reasoning;
step 42: and obtaining a primary design scheme of the hoisting process, including the number and the positions of hoisting points and the types of hoisting horses, based on a process knowledge system and by combining a knowledge matching and reasoning method according to the input parameter information.
Step 43: the multi-objective solving framework carries out numerical simulation calculation and analysis by taking the initial hoisting process design scheme as initial parameters, design variables comprise the number and positions of hoisting points, the types of hoisting horses, the forms of supporting profiles and the forms of reinforcing profiles in the solving process, and the hoisting process design recommendation scheme is obtained through repeated iterative calculation and optimization.
And step 44, manually checking and adjusting the recommended hoisting process design scheme to obtain a final hoisting process design scheme.
7. The design method of ship segment hoisting process according to claim 1,
the step 5 comprises the following steps:
step 51: arranging the final design scheme of the hoisting process;
step 52: correcting a hoisting process scheme according to the actual hoisting condition of the target ship segment;
step 53: and carrying out knowledge expression and storage on the ship section information and the corresponding hoisting process scheme, and expanding a process knowledge system.
8. A computer storage medium, characterized in that it stores a computer program which, when executed by a processor, implements the ship segment hoisting process design method of any one of claims 1 to 7.
9. A computer device, comprising:
the device comprises a memory and a processor, wherein the memory stores a computer program, and the program is executed by the processor to realize the ship segment hoisting process design method of any one of 1 to 7.
CN202211362073.6A 2022-11-02 2022-11-02 Ship sectional hoisting process design method, computer storage medium and equipment Pending CN115587428A (en)

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