CN112699429A - Layered organization method of airplane data structure - Google Patents
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Abstract
本申请提供一种飞机数据结构的分层组织方法，方法包括：根据飞机机型、部段和所涵盖的系统/子系统，构建飞机数据组织结构的顶层结构层；根据所述顶层结构层，构建飞机数据组织结构的状态控制层；根据状态控制层，构建飞机数据组织结构的零部件设计层；根据不同的飞机数据管理环境，选择对应的飞机数据组织结构。
The present application provides a hierarchical organization method for an aircraft data structure, the method comprising: constructing a top-level structure layer of the aircraft data organization structure according to the aircraft type, sections and covered systems/subsystems; according to the top-level structure layer, Build the state control layer of the aircraft data organization structure; build the parts design layer of the aircraft data organization structure according to the state control layer; select the corresponding aircraft data organization structure according to different aircraft data management environments.
Description
Technical Field
The invention relates to the field of data management of airplane digital products, in particular to a hierarchical organization method of an airplane data structure.
Background
The development of an aircraft is a comprehensive system engineering, and a large amount of design data is generated in the development process. Particularly, the market competition of the airplane is increasingly violent nowadays, the requirements of users on the airplane are diversified, and even different requirements can be met for each frame of the airplane with the same type; the design data of the aircraft needs a plurality of specialties including totality, pneumatics, structure, strength, mechanical systems, avionics and the like, and the design data of the specialties are unified to form a very huge aircraft data structure. For example, the development data volume of large aircraft engineering in China is extremely large, more than 100 pieces of A4 drawings are expected, and the number of standard parts is nearly 300 pieces. These huge aircraft data, combined with complex aircraft development procedures, present new requirements for aircraft data management.
Because the data has the characteristics of clear hierarchy, more changes and larger time span, the airplane data needs to be decomposed and managed according to the structural hierarchy so as to ensure the manageability, the controllability of the changes and the traceability. Meanwhile, the requirements of a large amount of improvement and modification design after the airplane obtains model certification are also required to be met.
The airplane data organization structure is the core of design data and information organization, is the basis for implementing a product data management system (PDM), and is also the basis and source of all information output of a project. Therefore, the data organization structure of the airplane must be divided to better serve the development and production of the airplane.
Disclosure of Invention
The application provides a hierarchical organization method of an aircraft data structure, which is carried out on a product data management system (PDM) and adopts a simplified configuration management strategy. After the modules are reasonably decomposed and selected, different management is respectively carried out on the modules and the components, so that the hierarchy of configuration management is embodied; the management with the pattern as the center in the traditional configuration management is converted into the management with the module as the center.
The application provides a method for hierarchically organizing an aircraft data structure, which comprises the following steps:
constructing a top layer structure layer of the airplane data organization structure according to airplane models, sections and covered systems/subsystems;
constructing a state control layer of an airplane data organization structure according to the top layer structure layer;
constructing a part design layer of the airplane data organization structure according to the state control layer;
and selecting a corresponding airplane data organization structure according to different airplane data management environments.
Preferably, the constructing a top-level structural layer of the aircraft data organization structure according to the aircraft model, the sections and the covered systems/subsystems specifically includes:
and constructing a top layer structure layer of the airplane data organization structure according to airplane types, sections, systems, subsystems and subsystems.
Preferably, the constructing a state control layer of an aircraft data organization structure according to the top-layer structure layer specifically includes:
dividing each subsystem into a set of configuration items CI;
each configuration item CI corresponds to one or more configuration plans CS;
each configuration scheme CS corresponds to one or more modules.
Preferably, the constructing a part design layer of an aircraft data organization structure according to the state control layer specifically includes:
the part design layer corresponding to each module comprises a three-dimensional digital-analog, a two-dimensional pattern, an engineering bill of materials (EBOM) and a design file.
Preferably, the aircraft data management environment comprises a configuration management environment, a prototype design environment and an airborne equipment management environment.
Preferably, the configuration item CI is a node in the data organization structure that plays a role in configuration management and control.
Preferably, there may be N configuration schemes CS for one configuration item CI according to actual design requirements;
according to the project configuration business process, a configuration item CI-configuration project CS is selected for supporting the serialized project and customer project of the aircraft.
Preferably, the module is a design solution of the configuration solution CS under a specific framework, including complete information of the design solution.
The method and the device solve the problems of complex and chaotic management of airplane data organization and ensure the consistency and controllability of data. The design cost and the risk are reduced, the development period is shortened, and the method is the beginning of lean enterprises. The utility model discloses a mainly used aircraft digital product data management.
Drawings
FIG. 1 is a block diagram of a hierarchical management framework for an aircraft data organization structure provided herein;
detailed description of the invention
Example one
According to the method, the airplane data structure is subjected to modularized layering by combining a traditional airplane work decomposition structure model according to a modularized thought, and the airplane data structure comprises a top-layer structure layer, a state control layer and a part design layer, as shown in figure 1. The aircraft is divided into appropriate modules from the design and manufacturing point of view for management and design production. The modules herein are managed objects that contain a partitioning of assembly relationships or a process recipe and other attributes. The method has the advantages that the complex airplane system can be decomposed into a plurality of independent and related units and used as the object of configuration management, namely, the management work is implemented under the flattened data organization structure, and the obvious advantages are embodied in the following aspects: the system reliability is improved, the design period is shortened, the integration is good, the cost is low, and the response and the maintenance are convenient.
It should be noted that the data organization structure is a general technique for organizing aircraft data, and is a hierarchical view of the relationship between an aircraft and components. The data structure defines a composition of the aircraft and is associated with aircraft configuration information.
The method comprises the following steps: and constructing a top layer structure layer of the airplane data organization structure according to airplane models, sections and covered systems/subsystems.
Specifically, a top layer structure layer of the airplane data organization structure is constructed according to airplane models, sections, systems, subsystems and subsystems.
For a particular aircraft model, the top layer structure layers are relatively stable and invariant after the requirements, functional characteristics and physical characteristics of the top layer of the aircraft have been determined, but these structures can be divided into "product invariant portions" and "product variant portions" according to the content. The data organization corresponding to the invariant portion and the variant portion is consistent. The top layer structure layer is used for organizing and managing common and common information of the same model.
The top layer structure layer is divided through a system contained in the airplane, and then is divided through the sections from the space, so that the division of labor in the actual development process can be effectively realized, and the control of the division size of future modules is facilitated. Each specialty faces a section together, designs cooperatively and completes the overall delivery. In order to reasonably support the difference characteristics of professional delivery data under the sections, the sections are further divided through subsystems, and the division of the subsystems completely depends on professional collaborative division of labor during actual development work. At the same time, the division of subsystems/subsystems effectively controls the size of the configuration layer modules.
Step two: constructing a state control layer of an airplane data organization structure according to the top layer structure layer;
specifically, each subsystem is divided into a group of configuration items CI;
each configuration item CI corresponds to one or more configuration plans CS;
each configuration scheme CS corresponds to one or more modules;
the content of the state control layer does not relate to the information of the part production, and mainly comprises the configuration management and the configuration change control management of the module, and is used for carrying out the management of multiple configurations and single shelf times. "product-invariant part", i.e. a part that is suitable for all stands, without the presence of multiple configurations; the "product variable part" is a part with different configurations selected according to different frame times, namely a part corresponding to a plurality of modules to be selected.
It should be noted that the state control layer follows the definition of the configuration layer in the aircraft universal data organization structure, and is composed of three parts, namely: configuration items CI, configuration scheme CS and modules.
The configuration item CI is a node which plays a role in configuration management and control in a data organization structure, the CI is not a real physical assembly or part in the data organization structure, and each CI is unique and has a specific position in the airplane;
the configuration scheme CS is used as an implementation scheme of the configuration item CI and is controlled by scheme planning in the design process. According to the actual design requirement, N configuration schemes can exist in one configuration item. According to the project configuration business process, a configuration item CI-configuration project CS is selected for supporting the serialized project and customer project of the aircraft.
A module is a design solution of a configuration solution CS in a certain specific shelf range, and includes complete information (number of components, drawing documents, component lists, design specifications) of the design solution. From the perspective of business, the delivery states of the same module corresponding to different shelves may be different, and under the guidance of the core idea that multiple versions are effective, different delivery sets of the same module under different shelves are distinguished through a 'configuration baseline', that is, different versions of the same module are corresponding to different shelf deliveries.
Step three: constructing a part design layer of the airplane data organization structure according to the state control layer;
specifically, the part design layer corresponding to each module comprises a three-dimensional digital-analog model, a two-dimensional pattern, an engineering bill of materials (EBOM) and a design file.
The part design layer is composed of a specific three-dimensional digital-analog, a specific two-dimensional pattern, a specific engineering bill of materials (EBOM) and a specific design file, and is organized by modules. The part design layer is only used for expressing the production guide information, and does not express other management information such as applicable shelves.
The component design layer is a module, the following structure thereof and related design files, and is mainly used for delivery management of the design at the stage. Based on the idea of modular design, the delivery of one module is uniformly managed as a delivery whole.
Step four: and selecting a corresponding airplane data organization structure according to different airplane data management environments.
The airplane data management environment comprises a configuration management environment, a prototype design environment and an airborne equipment management environment.
In practical applications, in a product data management system (PDM), different environments are customized for different data, respectively. And aiming at different service characteristics of configuration items and components, different management modes are adopted.
In summary, the invention provides a layering method of an airplane data organization structure, and relates to the field of airplane digital product data management. The basic principle of the layering method of the airplane data organization structure is that the organization mode of the data and documents of the airplane and parts thereof is consistent with the assembly relationship of the airplane and the parts, the airplane comprises parts and parts, the parts comprise lower-level parts and parts, and the parts are continuously refined according to the form to form a tree structure, namely a data organization structure tree. The method has the advantages that the complex airplane system can be decomposed into a plurality of independent and related modules and used as the object of configuration management, namely, management work is implemented under a flattened data organization structure, and the design and manufacturing level of the airplane is greatly improved.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115630436A (en) * | 2022-10-17 | 2023-01-20 | 中国船舶重工集团公司第七一九研究所 | Super product structure tree management system developed in parallel for series ships |
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Patent Citations (3)
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| CN103870905A (en) * | 2012-12-13 | 2014-06-18 | 中航通飞研究院有限公司 | Airplane product data hierarchical control method |
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| CN115630436A (en) * | 2022-10-17 | 2023-01-20 | 中国船舶重工集团公司第七一九研究所 | Super product structure tree management system developed in parallel for series ships |
| CN115630436B (en) * | 2022-10-17 | 2024-03-26 | 中国船舶重工集团公司第七一九研究所 | Super product structure tree management system for parallel development of series ship |
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