CN115630437A - A Product Data Management Method Compatible with Ship Design and Construction - Google Patents

Abstract

The invention discloses a product data management method compatible with ship design and construction, comprising the following steps: constructing a product structure tree according to general section-area-system-subsystem to realize unified organization of system design and construction data; Code the nodes at each level to obtain the node codes to realize the identification of various design data design and construction information; filter, merge, and sort based on the node codes and node attributes to realize the structure tree construction and display of any product. The beneficial effects of the present invention are: the overall design and assembly construction are carried out based on the same product structure tree, the conversion of data from the design perspective to the construction perspective is effectively reduced, the product data coding rules covering design and construction information are formulated, and the development process is realized. The system and region information of the data can be traced quickly, and a data view conversion method based on coding and node attributes is constructed to meet the needs of different departments for data display according to custom rules.

Description

A Product Data Management Method Compatible with Ship Design and Construction

technical field

The invention relates to the field of data management, in particular to a product data management method compatible with ship design and construction.

Background technique

With the popularization and application of CAD/CAM technology, various ship research and development units have produced a large amount of product data in the process of design and construction. How to centrally manage and effectively use these data has become a problem that each unit must face. For this reason, software manufacturers develop A PDM system that can realize functions such as product document management, product model management, product structure management, configuration management, version management, process management, change control, material and plan management, such as PTC's windchill system and Siemens' Teamcenter system etc., to a certain extent, solved the problem of product data management within each unit. In the specific implementation process, each ship development unit mainly realizes the organization and management of product data based on the product structure tree, constructs the product structure tree as the structural framework of data management through the product structure management function in the PDM system, and associates tree nodes with related design documents , drawings, lists, models and other data to realize product data organization, realize status control through configuration management, version management, process management, change control and other functions, and realize data traceability and utilization through product structure search and traversal.

At present, the domestic ship development adopts the mode of separation of design and construction. After the overall design unit completes the preliminary design and detailed design of the product, the design results are passed on to the final assembly construction unit to continue the production design and construction. Due to the different business needs of the overall design unit and the final assembly construction unit, there are also large differences in the construction of product structure trees in the PDM system, resulting in incompatible product data management methods. The overall design unit carries out the decomposition and distribution of functions and performance and the integration verification of the scheme based on the product structure tree. Therefore, the product structure tree is often divided into nodes such as systems, subsystems, equipment/components, and parts according to the logical composition of the product. Design drawings, documents, models, and checklists are associated to form a product design data set. The final assembly construction unit manages construction operations based on the product structure tree. Therefore, the product structure tree in the construction stage is mainly divided into different types of intermediate products such as general section, area, section, pallet, and unit according to the manufacturing process and process flow. By dividing the product structure Each intermediate product in the process is associated with the required materials, drawings, models and other data to form a product manufacturing data set. After the product design data set is transferred from the overall design unit to the final assembly construction unit, manual decomposition and reconstruction are required to form the product manufacturing data set.

The current ship product data organization and management mode mainly has the following three defects. First, ship products have the characteristics of "design and production at the same time". Once a change is made, the final assembly construction unit has to manually decompose and reorganize the design data set once. The workload of data conversion is heavy, the consistency is difficult to ensure, and the whole process of part information is difficult to trace. The second is that ship product data are organized in different ways and coded in different ways during the design and construction stages, and it is difficult to track the whole process of design and construction after data conversion and reorganization. The third is that the assembly relationship between nodes at each level of the product structure tree is generally established by strong association, and the structure tree display view is single, and it is impossible to quickly reorganize and switch views according to different application requirements.

Contents of the invention

In order to solve the technical problems of heavy workload and cumbersome process when updating product data in the prior art, the present invention provides a product data management method compatible with ship design and construction.

This application method includes the following steps:

S1. Construct the product structure tree according to the general section-area-system-subsystem to realize the unified organization of system design and construction data;

S2. Encode the nodes at each level of the product structure tree to obtain node codes, and realize the identification of various design data design and construction information;

S3. Filter, merge, and sort based on node codes and node attributes to realize structure tree construction and display of any product.

The beneficial effects provided by the present invention are: the overall design and assembly construction are carried out based on the same product structure tree, the conversion of data from the design perspective to the construction perspective is effectively reduced, product data coding rules covering design and construction information are formulated, and the research and development In the process, the data belongs to the system and region information quickly traced, and a data view conversion method based on coding and node attributes is constructed, which meets the needs of different departments for data display according to custom rules.

Description of drawings

Fig. 1 is a schematic flow sheet of the method of the present invention;

Figure 2 is a schematic diagram of a product structure tree;

Fig. 3 is a schematic diagram of product structure tree view conversion.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Please refer to Fig. 1, Fig. 1 is a schematic flow chart of the method of the present invention; a product data management method compatible with ship design and construction, including the following:

S1. Construct the product structure tree according to the general section-area-system-subsystem to realize the unified organization of system design and construction data;

Please refer to Figure 2. Figure 2 is a schematic diagram of a product structure tree. As an example, for ship development, the product structure tree consists of 8 types of nodes: product, general segment, area, segment, system, subsystem, component, component, and part composition.

The whole product is composed of multiple general sections, and the total section is divided into hull area and non-hull area, wherein the hull area can be subdivided into sections, components, components and parts layer by layer, and the non-hull area can be subdivided into systems, sub-hull areas Systems, assemblies and parts.

The present invention is further explained as follows to different design stages:

In the outline design stage, the overall design unit can build a product structure tree according to this method, in which the hull structure is subdivided at least to the regional node level, and the non-hull structure is at least subdivided to the system node level. Designers carry out functional performance decomposition and allocation based on the structure tree. Multi-discipline parallel design, related design data is associated with structural areas and systems;

In the detailed design stage, the overall design unit further subdivides the hull structure into segment-level nodes on the basis of the general design product structure tree, subdivides non-hull structures into subsystem-level, and carries out detailed design of structural segments and subsystems. Segment, subsystem association;

In the production design stage, the final assembly construction unit carries out structural tree subdivision, data reorganization, process information addition and manufacturing information output on the basis of detailed design data, among which the hull structure is subdivided into components, parts and parts, and the segmented design information is reorganized according to the structure , and add groove, margin and welding information, and output the processing and assembly information of the frame parts in units of component nodes, each subsystem divides pipe segments and parts, and outputs pipelines, air ducts, electrical components in units of component nodes , equipment installation and other pallet processing and assembly information.

S2. Encode the nodes at each level of the product structure tree to obtain node codes, and realize the identification of various design data design and construction information;

Coding is a design technology that uses the similarity principle of grouping technology to combine letters and numbers to reflect the characteristics of things. Effective product structure coding can realize all stages from design to production, and from the area to the system. It is also an important source of information for multi-view conversion of product data.

Node codes include product codes, area codes, professional codes, and part codes. Each node number (code) is set according to its specific level. Level node number is composed of product code and area code, the general form is "product code_area code", system and subsystem level node number is composed of product code, area code and system code, the general form is "product code_area code_ Specialty code”; component, component and part-level node numbers are composed of product code, regional code, system code and part code, and the general composition form is “product code_regional code_professional code_part code”, the specific composition form of each code and See the table below for the numbering requirements. Node attributes include: setup stage, product and iteration times;

Table 1 Schematic representation of product structure tree coding rules

S3. Filter, merge, and sort based on node codes and node attributes to realize structure tree construction and display of any product.

Based on the product structure tree, the design and manufacturing data generated in the product development process are organized and managed to form a unified product data source. When facing different application departments and purposes, it can be based on the product structure tree code and the attributes of nodes at each level, according to the user's own Definition rules can be automatically reorganized into specific display views.

Please refer to FIG. 3 , which is a schematic diagram of product structure tree view conversion.

The reconstruction method is as follows: first, when the user product structure tree is established, attributes such as stage, product, and iteration times are set for nodes at all levels, and are used to filter nodes when reconstructing the view; secondly, set the composition level of the product structure tree and the nodes of each level The range of numbers and whether nodes with the same name are displayed in combination. The maximum level is seven levels. Duplicate numbers are not allowed between nodes of different levels. Finally, filter and arrange conditions for each level are set according to node numbers and attributes. After completing the setting of the reconstruction rules, the user can use the product data management system to reconstruct the product structure tree, and realize different views of product data based on the data associated with each node.

Key point of the present invention is:

1. When constructing the product structure tree, the overall design unit should comprehensively consider the construction mode and capabilities of the assembly construction unit, plan the general section and area of product construction in advance, and after completing the detailed design based on the structure tree, the final assembly construction unit will only refine on this basis Splitting, no more reorganization of the entire dataset.

2. The overall design unit shall establish a regional code and professional code reference table according to the product general segment and area division, system and subsystem division, and code the product structure tree nodes based on the reference table during the development process.

3. Comprehensively consider the data view conversion needs of each department, set corresponding attributes for each level node when building the product structure tree, and filter nodes based on attributes when refactoring the view.

The beneficial effects of the present invention are: the overall design and assembly construction are carried out based on the same product structure tree, the conversion of data from the design perspective to the construction perspective is effectively reduced, product data coding rules covering design and construction information are formulated, and the development process is realized Quickly trace the system and region information of the data in the database, and construct a data view conversion method based on coding and node attributes, which meets the needs of different departments for data display according to custom rules.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (5)

1. A product data management method compatible with ship design and construction, characterized in that: comprising the following steps: S1. Construct the product structure tree according to the general section-area-system-subsystem to realize the unified organization of system design and construction data; S2. Encode the nodes at each level of the product structure tree to obtain node codes, and realize the identification of various design data design and construction information; S3. Filter, merge, and sort based on node codes and node attributes to realize structure tree construction and display of any product. 2. A product data management method compatible with ship design and construction according to claim 1, characterized in that: the nodes of the product structure tree include: product, general segment, area, segment, system, subsystem, Assemblies, components and parts. 3. A product data management method compatible with ship design and construction as claimed in claim 2, characterized in that: the product is composed of a plurality of general sections, and the general sections are divided into hull areas and non-hull areas; sub-nodes of the hull areas Includes: Segments, Assemblies, Assemblies, and Parts; subnodes for non-hull areas include: Systems, Subsystems, Assemblies, and Parts. 4. A product data management method compatible with ship design and construction as claimed in claim 3, characterized in that: the node code includes product code P, area code Z, professional code S and part code E, through product code - area Code-professional code-part code is searched in sequence to complete the quick traceability of a specific component, part or part; node attributes include: setting stage, belonging product and iteration number. 5. A product data management method compatible with ship design and construction as claimed in claim 4, characterized in that: during custom reconstruction, filter, merge and sort node codes and node attributes at all levels, and complete any product Structure tree construction and display.

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