Three-dimensional process design method for complex structure of ship, computer storage medium and equipment

Abstract

The application relates to the technical field of ship process design, in particular to a ship complex structure three-dimensional process design method, a computer storage medium and equipment. The application extracts key process features and processes them by interpreting the three-dimensional model of the ship complex structure to be subjected to process design, then obtains process design knowledge rules of the model process features based on complex structure process knowledge system reasoning, then performs process intelligent design based on the process design indication rules, realizes process automatic reasoning and design, improves the knowledge reuse rate, reduces repetitive labor, shortens the manufacturing cycle of products, and solves the technical problem of low process design efficiency of the ship complex structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship process design, in particular to a ship complex structure three-dimensional process design method, a computer storage medium and equipment. BACKGROUND

[0002] The part described in this part only provides background information related to the present disclosure and can not constitute prior art.

[0003] Ship complex structure process design mainly includes process design such as machining, forming, assembly and welding, and mainly contains two aspects of process procedure design and process equipment. The ship complex structure process design is the core of the overall process of production and construction, and the process, parameters and equipment are determined according to the characteristics, nature and function of the construction production. Due to the individual customization of ship products and the complexity of ship structure design, a series of decision-making activities are involved in the process of ship complex structure process design, and most of these decision-making activities are highly dependent on long-term accumulated experience and knowledge and historical project texts, documents, etc. In order to obtain support information from different sources, project personnel will spend about 70% of the time to search and reorganize the existing process design knowledge and data, and the time for design activities only accounts for 30%. Process designers spend a lot of time and effort on repetitive work, greatly prolonging the manufacturing cycle of products, causing great waste of resources. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a ship complex structure three-dimensional process design method, which is used for effectively utilizing existing knowledge resources and realizing efficient design of complex structure process.

[0005] Another purpose of the embodiment of the present application is to provide a computer storage medium and computer equipment for realizing the above-mentioned ship complex structure three-dimensional process design method.

[0006] In a first aspect, a ship complex structure three-dimensional process design method is provided, comprising the following steps:

[0007] S1, analyzing the three-dimensional model of the target ship complex structure to be designed, extracting key process features and performing standardization processing, and judging whether the extracted complex structure process features after standardization processing meet the knowledge rule reasoning requirements required by the process design; if the rules obtained by reasoning do not meet the requirements, or the corresponding process design knowledge rules cannot be reasoned out, the process feature recognition is optimized, the process knowledge matching rule is optimized, and through continuous optimization and improvement, the accuracy of the complex structure process feature extraction is gradually realized;

[0008] S2, machining, forming, assembling, welding process knowledge reasoning based on complex structure process knowledge system: after extracting the key process features required for process design, the corresponding process design knowledge rules are reasoned and obtained based on the key process features;

[0009] S3, complex structure machining, forming, assembling, welding process design based on complex structure segmentation model: after obtaining the process design knowledge rules of the corresponding model process features of complex structure machining, forming, assembling, welding, the process design is realized based on the knowledge rules.

[0010] In one possible implementation, S1 includes:

[0011] S11, analyzing the target structure model, identifying different model features for different process design;

[0012] S12, identifying whether the complex structure segmentation model belongs to an assembly, if the complex structure segmentation model does not belong to an assembly, extracting the part machining process features, if the complex structure segmentation model belongs to an assembly, extracting the welding and assembly process features;

[0013] S13, classifying and standardizing the extracted process features, for the recognized text attribute information, through semantic feature alignment and disambiguation processing to obtain standardized feature semantics, for the recognized view process features, through image recognition technology, taking the best comparison view of the assembly model multi-angle;

[0014] S14, judging whether the extracted complex structure machining, forming, assembling, welding process features after standardization meet the knowledge rule reasoning requirements required for process design;

[0015] S15, if the rules obtained by reasoning do not meet the requirements, or the corresponding process design knowledge rules cannot be reasoned out, the process feature recognition is optimized, the process knowledge matching rules are optimized, through continuous optimization and improvement, the accuracy of process feature extraction is gradually realized.

[0016] In one possible implementation, in S11, during the design process, the complex structure segmentation model to be designed is selected in the design environment, the attribute information and geometric information defined in the complex structure segmentation model are read by traversing the selected segmentation structure model, and the process design type and process design elements are determined by identifying the corresponding feature information.

[0017] In a possible implementation, in S12, after the selected complex structure segment model is traversed and parsed, it is identified whether the parsed complex structure segment model belongs to an assembly. If the complex structure segment model does not belong to an assembly, the part machining process feature is extracted, and the part process content is determined through the extracted part attribute information. If the complex structure segment model belongs to an assembly, the features between the models are extracted, which are used to determine the process content.

[0018] In a possible implementation, in S14, each part is traversed through the comparison and checking mode, to check whether all the parts in the selected complex structure have identified the process features for process design, and the identified process features meet the knowledge rule reasoning requirements required by the process design, and the parts for which the corresponding process design features are not identified are displayed to the designer through the visualization mode.

[0019] In a possible implementation, S2 includes:

[0020] S21, based on the complex structure process knowledge system, the process rules of different categories are reasoned according to the extracted complex structure machining, forming, assembly, and welding process features;

[0021] S22, it is judged whether the process rules obtained by reasoning meet the process design requirements, process standard requirements, and equipment machining capacity requirements;

[0022] S23, if the obtained knowledge rules do not meet the driving process design requirements, it is judged whether the requirements are not met, if the corresponding knowledge rules cannot be matched or the matching is incorrect, the process design knowledge rules are optimized, and the process knowledge system is automatically updated;

[0023] S24, if the matching rules can meet the driving process design, and the rule information is accurate, the corresponding design module is driven to carry out the process design process.

[0024] In a possible implementation, in S22, it is checked whether the machining, forming, assembly, and welding process of all the parts in the selected complex structure has matched the corresponding process rules, and it is checked and judged whether the process rules obtained by reasoning meet the process design requirements, process standard requirements, and equipment machining capacity requirements based on the process knowledge system. The parts for which the corresponding process rules are not matched are visualized and displayed, and the designer is prompted to optimize the processing through the interactive function interface.

[0025] In a possible implementation, S3 includes: S31, the process knowledge system and the process design platform are integrated through the establishment of the mapping relationship of the process design function modules. After the process design knowledge rule matching and reasoning in the S2 step, the target structure model part matches the corresponding process design interface according to the process design category, and the corresponding process design module is called.

[0026] S32, based on the obtained knowledge rule and the matched design module, realizing design of the model process feature corresponding to the process;

[0027] S33, checking whether the complex structure machining, forming, assembling and welding process design based on the segmented model of the complex structure meets the design requirements;

[0028] S34, if the completed process design has errors or needs to be optimized and adjusted, the design content is adjusted through the interactive design mode, and the design accuracy is continuously improved through machine learning;

[0029] If the design content meets the requirements, the process delivery and process instructions are generated to guide the construction end to perform construction.

[0030] According to a second aspect of the present application, a computer storage medium is provided, which stores a computer program, the program being executed by a processor to realize the ship complex structure three-dimensional process design method in any possible implementation scheme of the first aspect.

[0031] According to a third aspect of the present application, a computer device is provided, comprising:

[0032] a memory and a processor, the memory storing a computer program, the program being executed by the processor to realize the ship complex structure three-dimensional process design method in any possible implementation scheme of the first aspect.

[0033] The present application has the following beneficial effects: the present application interprets the three-dimensional model of the ship complex structure to be designed, extracts key process features and processes them, then obtains the process design knowledge rule of the model process feature based on the complex structure process knowledge system reasoning, then performs process design based on the process design indication rule, realizes automatic reasoning and design of the process, improves the knowledge reuse rate, reduces repetitive labor, shortens the manufacturing cycle of the product, and solves the technical problem of low efficiency of the ship complex structure process design. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 a flowchart of a ship complex structure three-dimensional process design method of the present application;

[0036] Figure 2A flowchart of a ship complex structure three-dimensional key process feature extraction process in an embodiment of the ship complex structure three-dimensional process design method of the application is shown in the figure.

[0037] Figure 3 A flowchart of a process knowledge reasoning process based on a complex structure process knowledge system in an embodiment of the ship complex structure three-dimensional process design method of the application is shown in the figure.

[0038] Figure 4 A flowchart of a complex structure machining, forming, assembling, and welding intelligent process design process based on a complex structure section model in an embodiment of the ship complex structure three-dimensional process design method of the application is shown in the figure. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the application.

[0041] The application will be described in detail below with reference to the embodiments and drawings.

[0042] According to a first aspect, a specific embodiment of a ship complex structure three-dimensional process design method is provided, as shown in the figure. Figure 1 The ship complex structure three-dimensional process design method includes the following steps:

[0043] S1, analyze the three-dimensional model of the target ship complex structure to be designed, extract key process features, and perform standardization processing, and determine whether the extracted complex structure process features after standardization processing meet the knowledge rule reasoning requirements required by the process design; if the rules obtained by reasoning do not meet the requirements, or the corresponding process design knowledge rules cannot be reasoned out, the process feature recognition is optimized, the process knowledge matching rules are optimized, and through continuous optimization and improvement, the accuracy of the complex structure process feature extraction is gradually realized;

[0044] S2, machining, forming, assembly, welding process knowledge reasoning based on complex structure process knowledge system: after extracting the key process features required for process design, the corresponding process design knowledge rules are inferred and obtained based on the key process features;

[0045] S3, intelligent process design of complex structure machining, forming, assembly, welding based on complex structure segmentation model: after obtaining the process design knowledge rules of the corresponding model process features of complex structure machining, forming, assembly, welding, the intelligent process design is realized based on the knowledge rules.

[0046] Specifically, S1 as shown in Figure 2 In this embodiment, taking the process of typical complex structure process design of a ship as an example, the main process of extracting three-dimensional key process features of complex structure of a ship is as follows:

[0047] S11, in the design process, the designer selects the complex structure segmentation model to be designed in the design environment, reads the attribute information and geometric information defined in the complex structure segmentation model by traversing the selected segmentation structure model, and identifies the corresponding feature information to determine the process design type, process design elements, etc.

[0048] S12, after traversing and analyzing the selected complex structure segmentation model, it is identified whether the complex structure segmentation model belongs to an assembly body. If the complex structure segmentation model does not belong to an assembly body, the part machining process feature is extracted, and the part attribute information including specification, material, size, shape, etc. is extracted to determine the part machining, forming, etc. process content. If the complex structure segmentation model belongs to an assembly body, the relationship between the models, geometry and other features are extracted to determine the welding, assembly and other process contents.

[0049] S13, the extracted segmentation model attributes, geometry and other features are classified and standardized, the text attribute information identified is processed by semantic feature alignment and disambiguation to obtain standardized feature semantics, and the view process feature identified is processed by image recognition technology to obtain the best matching view of the assembly model from multiple angles. Through standardization, the corresponding process rules of the model can be matched more accurately;

[0050] S14, by comparing and checking, each part is traversed to check whether all parts in the selected complex structure have been identified for process design, and the identified process features meet the knowledge rule reasoning requirements of process design, and the process features are displayed to the designer in a visual manner, prompting those parts that have not been identified for corresponding process design features;

[0051] S15, if the extracted feature reasoning rule does not meet the requirements, or the corresponding process knowledge rule is not inferred, the process feature recognition and process knowledge matching rule are optimized, and through continuous optimization and improvement, the accuracy of process feature extraction is gradually realized.

[0052] In S2, the machining, forming, assembly, and welding process knowledge reasoning based on the complex structure process knowledge system is performed.

[0053] As shown in Figure 3 In this embodiment, taking the typical complex structure process design process of a ship as an example, the main process of machining, forming, assembly, and welding process knowledge reasoning based on the complex structure process knowledge system is as follows:

[0054] In S21, based on the complex structure process knowledge system, the machining, forming, assembly, and welding process rules of the complex structure are reasoned respectively according to the process design target complex structure machining, forming, assembly, and welding process features extracted in S1, wherein:

[0055] The machining process reasoning process: mainly through identifying the contour features, plate thickness attributes, and part materials of the target part model, the cutting and polishing process instructions corresponding to the part are obtained according to the knowledge system reasoning, and the matching processing equipment is obtained;

[0056] The forming process reasoning process: mainly through identifying the contour features, plate thickness attributes, and part materials of the target part model, the groove, allowance, and compensation amount process information corresponding to the part are matched, and the machining code and machining line are automatically calculated according to the matched process information;

[0057] The assembly process reasoning process: mainly through identifying the model part assembly correlation and relative position relationship information, the part assembly positioning is clarified, the small, medium, and large assemblies are automatically split according to the assembly splitting rules, and the part flow information is matched according to the assembly flow rules; then the assembly rules are matched according to the knowledge system, and the assembly sequence is reasoned out;

[0058] The welding process reasoning process: mainly through identifying the geometric contour features and part materials of the target part model, the welding seam form is matched according to the knowledge system, and the welding process and welding equipment are further determined according to the welding seam form.

[0059] In S22, it is checked whether the machining, forming, assembly, and welding process of all parts in the selected complex structure have been matched to the corresponding process rules, and it is checked whether the inferred process rules meet the process design requirements, process standard requirements, and equipment processing capacity requirements based on the knowledge system. The parts that have not been matched to the corresponding process rules are visualized and displayed, and the designer is prompted to optimize the processing through the interactive function interface.

[0060] S23. For parts that do not meet the requirements of the driving process design, the designer needs to adjust the process matching and determine the reason for not meeting the requirements. If the corresponding knowledge rules cannot be matched or the matching is incorrect, the process knowledge rules are optimized and the knowledge system is automatically updated.

[0061] S24. If the matching rules can satisfy the process design and the process rule information is accurate, then the corresponding design module will be driven to carry out the process design process. During the process design process, the corresponding process design can be carried out in categories and batches according to different process design requirements. For content that can be directly completed, the process design can be carried out directly through the backend. If interaction with the designer is required, the corresponding design module will be called and the process design will be completed with the help of the interactive design interface.

[0062] In S3, intelligent process design for machining, forming, assembly, and welding of complex structures is completed based on a segmented model of the complex structure.

[0063] like Figure 4 As shown in this embodiment, taking the typical complex structure process design of a ship as an example, the main process of intelligent process design for machining, forming, assembly, and welding of complex structures based on a segmented model of complex structures is as follows:

[0064] S31, the knowledge system and process design platform are integrated by establishing a mapping relationship between process design functional modules. After the process knowledge rule matching and reasoning in step S2, the target structural model part matches the corresponding process design interface according to the process design category and calls the corresponding process design module.

[0065] S32, based on the acquired knowledge rules and matching design modules, performs process design on the target structural model. The process design module varies depending on the specific process design content. Processes that can be directly defined on the model without design interaction are started and run directly in the background of the process design platform. If the process design content requires designer judgment or intervention, it is started through an interactive interface.

[0066] Machining process definition: Since machining process instructions are mainly based on the 100% determination of part geometry, the process definition of the target part is mainly achieved by calling the process calculation instructions in the background to realize the automatic definition of process information, and can directly generate machining instructions automatically based on the segmented model of complex structure.

[0067] Molding process definition: Since the molding process information cannot be obtained only by model matching, combined with the molding process content matched by the target part according to the S2 step, the process definition is completed by calling the interactive process definition function window to assist the definition of process information such as the bevel and allowance of the target part, and the machining instructions required for molding processing are automatically generated according to the defined process information. And through machine learning, the process definition accuracy is continuously improved in the interactive process definition process;

[0068] Assembly process definition: The part positioning in the assembly process is mainly automatically defined by the model connection relationship, and the positioning assembly instructions are output, and the part flow and assembly sequence process are mainly completed by calling the interactive process definition function window, and through machine learning, the process definition accuracy is continuously improved in the interactive process definition process;

[0069] Welding process definition: Since the form of the weld can be determined based on the geometry of the part 100%, the target part is matched to the process content according to the S2 step, and the process definition is mainly achieved by automatically running the weld definition function in the background, and the weld model can be automatically generated based on the complex structure segmented model, and the relevant welding process information is clearly defined in the weld model.

[0070] S33, check whether the complex structure machining, molding, assembly, and welding process design based on the complex structure segmented model meets the design requirements, mainly through two ways to check whether the process design fully meets the design requirements, the first way is through automatic inspection by the system, after S32 step, the process design completion is automatically pushed to the designer, if there is a part with incomplete process design, a visual interface prompt is given, the second way is through an interactive checking interface, the designer checks and improves the design content;

[0071] S34, if the completed process design has errors or needs to be optimized and adjusted, then adjust the process design content through interactive design, and continuously improve the design accuracy through machine learning;

[0072] S35, if the design content meets the requirements, generate the structure process design deliverables and process instructions to guide the construction end to carry out construction.

[0073] According to the second aspect of the present application, a computer storage medium is also provided, which stores a computer program, which is executed by a processor to realize the ship complex structure three-dimensional process design method of any embodiment of the first aspect.

[0074] Preferably, the storage medium includes ROM, RAM, disk, U disk, memory card, or optical disc, and various media that can store program codes.

[0075] According to a third aspect of the present application, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to implement the ship complex structure three-dimensional process design method according to any one of the embodiments of the first aspect.

[0076] The memory comprises a ROM, a RAM, a disk, a U disk, a memory card or an optical disk and the like various media capable of storing program codes. The processor is connected with the memory and is used for executing the computer program stored in the memory.

[0077] Preferably, the processor can be a general processor, including a central processing unit (CPU), a network processor (NP) and the like; and can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0078] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for three-dimensional process planning of complex structures of a ship, characterized in that, Comprise the following steps: S1, the three-dimensional model of the target ship complex structure to be processed is analyzed, the key process features are extracted and standardized, and it is judged whether the complex structure process feature extracted after standardization meets the knowledge rule reasoning requirement required by process design; If the rules obtained by reasoning do not meet the requirements, or the corresponding process design knowledge rules cannot be reasoned out, the process feature recognition is optimized, the process knowledge matching rules are optimized, and the accuracy of the complex structure process feature extraction is gradually realized through continuous optimization and improvement; S1 includes: S11, the target structure model is analyzed, and different model features are identified for different process design; S12, it is judged whether the complex structure segmented model belongs to an assembly, if the complex structure segmented model does not belong to an assembly, the part machining process feature is extracted, and if the complex structure segmented model belongs to an assembly, the welding and assembly process feature is extracted; S13, the extracted process features are classified and standardized, the text attribute information identified is processed through semantic feature alignment and disambiguation to obtain standardized feature semantics, and the view process feature identified is processed through image recognition technology to obtain the best comparison view of the assembly model multi-view; S14, it is judged whether the complex structure machining, forming, assembly, welding process features extracted after standardization meet the knowledge rule reasoning requirement required by process design; S15, if the rules obtained by reasoning do not meet the requirements, or the corresponding process design knowledge rules cannot be reasoned out, the process feature recognition is optimized, the process knowledge matching rules are optimized, and the accuracy of the process feature extraction is gradually realized through continuous optimization and improvement; S2, machining, forming, assembly, welding process knowledge reasoning based on complex structure process knowledge system: after the key process features required by process design are extracted, the corresponding process design knowledge rules are reasoned and obtained based on the key process features; S3, complex structure machining, forming, assembly, welding process design based on complex structure segmented model: after the process design knowledge rules of the complex structure machining, forming, assembly, welding corresponding model process features are obtained, the process design is realized based on the knowledge rules; S3 includes: S31, the process knowledge system and the process design platform are integrated by establishing the mapping relationship between the process design function modules, after the process design knowledge rule matching and reasoning in step S2, the target structure model parts are matched with the corresponding process design interface according to the process design category, and the corresponding process design module is called; S32, based on the obtained knowledge rules and matched design modules, the model process feature corresponding process design is realized; S33, it is checked whether the complex structure machining, forming, assembly, welding process design based on the complex structure segmented model meets the design requirements; S34, if the completed process design has errors or needs to be optimized and adjusted, the design content is adjusted through interactive design, and the design accuracy is continuously improved through machine learning; If the design content meets the requirements, the process delivery and process instructions are generated to guide the construction end to carry out construction.

2. The method of three-dimensional process planning for complex structures of a ship according to claim 1, characterized in that, In S11, in the design process, a complex structure segment model to be subjected to process design is selected in a design environment, the selected segment structure model is traversed, attribute information and geometric information defined in the complex structure segment model are read, and a process design type and a process design element are determined by identifying corresponding feature information.

3. The method of claim 2, wherein, In S12, after the selected complex structure segment model is traversed and parsed, it is identified whether the complex structure segment model belongs to an assembly, if the complex structure segment model does not belong to the assembly, a part machining process feature is extracted, and part process content is determined by the extracted part attribute information, if the complex structure segment model belongs to the assembly, a feature between models is extracted, and used to determine process content.

4. The method of three-dimensional process planning for complex structures of a ship according to claim 1, characterized in that, In S14, each part is traversed by comparison and inspection, it is checked whether all parts in the selected complex structure have identified process features for process design, and the identified process features meet the knowledge rule reasoning requirements required by process design, and the parts for which corresponding process design features are not identified are displayed to the designer in a visual manner.

5. The method for three-dimensional process planning of complex structures of a ship according to claim 1, characterized in that S2 Comprise: S21, based on the complex structure process knowledge system, process rules of different categories are reasoned according to the extracted complex structure machining, forming, assembly and welding process features; S22, it is judged whether the process rules reasoned meet the process design requirements, process standard requirements and equipment processing capacity requirements; S23, if the obtained knowledge rules do not meet the driving process design requirements, it is judged that the requirements are not met, if corresponding knowledge rules cannot be matched or matching is incorrect, the process design knowledge rules are optimized and the process knowledge system is automatically updated; S24, if the matched rules can meet the driving process design and the rule information is accurate, the corresponding design module is driven to carry out the process design process.

6. The ship complex structure three-dimensional process design method according to claim 5, wherein, In S22, it is checked whether corresponding process rules have been matched for all parts in the selected complex structure machining, forming, assembly and welding process, and it is checked and judged whether the process rules reasoned based on the process knowledge system meet the process design requirements, process standard requirements and equipment processing capacity requirements, and the parts for which corresponding process rules have not been matched are displayed in a visual manner, and the designer is prompted to optimize the process by an interactive function interface.

7. A computer storage medium, characterized in that The computer program stored in the memory is executed by the processor to realize the ship complex structure three-dimensional process design method in any one of claims 1 to 6.

8. A computer device, comprising: Comprise: The memory stores a computer program, and the program is executed by the processor to realize the ship complex structure three-dimensional process design method in any one of claims 1 to 6. The memory stores a computer program, and the program is executed by the processor to realize the ship complex structure three-dimensional process design method in any one of claims 1 to 6.

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