CN109146090B - Component life cycle management method based on equipment digital twin management platform - Google Patents
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Abstract
The invention discloses a part life cycle management method based on a device digital twin body management platform, which belongs to the field of intelligent manufacturing management of industrial enterprise devices and comprises the specific steps of establishing a part digital twin body model with a part origin in an entity, taking a part as an assembly body, establishing a device digital twin body, establishing a space coordinate value of the part in the device digital twin body, adding the space coordinate value of the part in the internal space of the device digital twin body into the physical attribute of the part, remotely accessing a device digital model stored on a server by a user through a client, interacting with a database by using a part name and the space coordinate value of the part, and distinguishing part information under different working conditions in the model library, the database records any maintenance information of the parts, and realizes the life cycle management of the parts of the large-scale equipment.
Description
Technical Field
The invention belongs to the field of intelligent manufacturing management of industrial enterprise equipment, and particularly relates to a part life cycle management method based on an equipment digital twin management platform.
Background
In the life cycle management process of equipment parts, in a complex device, parts with the same type, such as bearings, bolts, sealing rings, key parts and the like, can be installed and used at different positions on the device. The same type of parts have different installation positions and large working condition difference, so that the service lives of the same type of parts are different, and the life cycle of the parts has large difference, so that the life cycle management of the parts cannot be accurate to each individual. The life cycle of the parts obtained in daily work is an average value obtained through manual statistics, so that the obtained result is strong in experience and subjectivity, the parts of the same model cannot be treated differently under different working conditions, the condition of over-maintenance or under-maintenance is easily caused, the production efficiency of equipment is influenced, and unnecessary investment of repair cost is caused.
In the current equipment part life cycle management, the time between two adjacent batches of parts purchased by a factory is mostly adopted for rough statistics. For equipment with higher complexity, a tree structure is adopted to distinguish parts with the same model by a naming mode of file names, but due to the limitation of text description, the parts are very easy to be confused by the method, equipment operation and maintenance management technicians need to spend more time for identifying the specific parts, the statistical workload is larger, the life cycle of the calculated parts is inaccurate, and the life cycle of the parts cannot be scientifically managed by an informatization means.
Disclosure of Invention
In order to solve the problem that parts with the same model and different installation positions cannot be specifically identified in the life cycle management process, the invention utilizes the establishment of the equipment digital twin body, adds the space coordinate value of the part in the internal space of the equipment digital twin body into the physical attribute of the part, and uses the attribute as the identity mark for distinguishing the parts with the same model and different space positions.
In order to achieve the purpose, the invention is realized by the following technical scheme: the method comprises the following steps of distinguishing parts of the same type in equipment by utilizing the space positioning of an equipment digital twin body, and applying the method to the life cycle management process of the parts, wherein the mathematical model establishment of the part life cycle management method based on the equipment digital twin body management platform comprises the following specific steps:
step1, establishing a part digital twin model with a part origin in an entity;
step2, using the part as an assembly body to establish an equipment digital twin body;
step3, establishing a space coordinate value of the part in the digital twin body of the equipment;
step4, adding a space coordinate value of the part in the internal space of the equipment digital twin body into the physical attribute of the part;
the part lifecycle management method based on the equipment digital twin management platform further comprises a database server for storing the digital twin model and part lifecycle data, and a client for performing data interaction with the database server.
Further, in the step2, the part is used as an assembly body to establish an equipment digital twin body; all parts of one device are required to be established in a coordinate system in a three-dimensional modeling mode, and any part, assembly and component in the device are a constant matrix relative to the three-dimensional space coordinate value of the origin of the overall coordinate of the device twin, so that the device twin has uniqueness.
Further, step3, establishing a space coordinate value of the part in the equipment digital twin; the original point of the part needs to be ensured to be positioned inside the entity of the digital twin body of the part, and the original point is introduced into the inside of the digital twin body of the equipment in the part assembling process to generate the three-dimensional space coordinate value attribute of the part.
Furthermore, at the beginning of system establishment, the equipment is not in a brand-new unused state before the system is operated on line, the first life cycle value of the parts recorded by the system is an invalid value, and when the parts are replaced for the second time, the real and effective life cycle predicted value is recorded by the system database of the server.
Furthermore, the client is a WEB and 3D operation interface, the client remotely accesses the 3D digital model of the equipment digital twin body stored in the database server, the equipment digital twin body uses the part name and the part coordinate to interact with the information stored in the database, and the database records any maintenance information of the user on the part.
Further, the database Server adopts a B/S (Browser/Server Browser-Server) system mode, an application program module of a client side is separated from a display function, the application program module is arranged at the Server side, and the client side is operated only through a Browser.
The equipment supplier and the part manufacturer can obtain partial access authority of the database server; the inventory, life cycle and maintenance records of the parts are synchronized to a supplier server in real time, and reference information is provided for supplier organization production, product technology improvement, new product research and development and logistics freight.
The invention has the beneficial effects that:
the coordinate value in the equipment digital twin body management platform is used as important information of the part identity identification, and the coordinate value is added into the basic information, so that the position identification of parts with the same type can be realized. When the coordinate origins of a plurality of parts in the equipment are completely coincident, the parts can be effectively distinguished by identifying the names, the models and other information of the parts. For the same type of parts used on different equipment, all the equipment can be placed in a workshop coordinate system for identification. In an information management system (MES or ERP), coordinate value information can be brought into the system by equipment BOM and is connected with a database, when a user replaces and maintains parts, relevant use information is automatically recorded by corresponding equipment twin bodies in a management platform, the life cycle management of specific parts is realized, and equipment prediction and maintenance are accurately carried out.
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FIG. 1 is a block diagram of a method for lifecycle management of components based on an equipment digital twin management platform;
FIG. 2 is a schematic diagram of coordinate information positioning and identification of parts inside a digital twin;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The method comprises the following steps of distinguishing parts of the same type in equipment by utilizing the space positioning of an equipment digital twin body, and applying the method to the life cycle management process of the parts, wherein the mathematical model establishment of the part life cycle management method based on the equipment digital twin body management platform comprises the following specific steps:
step1, establishing a part digital twin model with a part origin in an entity;
step2, using the part as an assembly body to establish an equipment digital twin body;
step3, establishing a space coordinate value of the part in the digital twin body of the equipment;
step4, adding a space coordinate value of the part in the internal space of the equipment digital twin body into the physical attribute of the part;
the part lifecycle management method based on the equipment digital twin management platform further comprises a database server for storing the digital twin model and part lifecycle data, and a client for performing data interaction with the database server.
Step2, using the part as an assembly body to establish an equipment digital twin body; all parts of one device are required to be established in a coordinate system in a three-dimensional modeling mode, and any part, assembly and component in the device are a constant matrix relative to the three-dimensional space coordinate value of the origin of the overall coordinate of the device twin, so that the device twin has uniqueness.
Step3, establishing a space coordinate value of the part in the equipment digital twin; the original point of the part needs to be ensured to be positioned inside the entity of the digital twin body of the part, and the original point is introduced into the inside of the digital twin body of the equipment in the part assembling process to generate the three-dimensional space coordinate value attribute of the part. The attribute is contained in the basic attribute of the equipment twin body, the rotation matrix and the translation vector of the part coordinate system relative to the twin body total coordinate system are introduced, and the uniqueness of the three-dimensional space coordinate value of the part in the equipment digital twin body management platform is ensured.
In the digital twin body management platform of the equipment, the relation between the parts and the assembly body coordinate system is realized by using a matrix transformation principle. As shown in fig. 2, the apparatus twin coordinate system is OAss-XAYAZAThe origin of the total coordinate system of the equipment in the digital twin is 1, and the coordinate system of the part is OPart-XPYPZPThe origin of the part is 2 in the figure, and the translation vector between the two coordinate systems can be expressed as:
the rotation matrix is:
under homogeneous coordinates, the relationship between the part coordinate system and the assembly coordinate system is:
when the coordinate origins of a plurality of parts in the equipment are completely coincident, the parts can be effectively distinguished by identifying the names, the models and other information of the parts. For the same type of parts used on different equipment, all the equipment can be placed in a workshop coordinate system for identification.
At the beginning of system setup, the theoretical lifecycle calculations for the part are saved as one of the attributes in the database system. When repair maintenance personnel replace the damaged parts through the system, the life cycle of the parts is automatically recorded in the database by the management platform. In most cases, the device is not in a brand-new unused state before the system is online and runs, and the first life cycle value recorded by the system is an invalid value. When the parts are replaced for the second time, the real and effective life cycle predicted value is recorded by the system. A user uses a client WEB and a 3D operation interface to remotely access a 3D digital model stored on an equipment digital twin management platform, the equipment digital twin uses a part name and a part coordinate to interact with a database, and the database records any maintenance information of the user on the part.
The client is a WEB and 3D operation interface, the client remotely accesses a 3D digital model of the equipment digital twin body stored in the database server, the equipment digital twin body uses the part name and the part coordinate to interact with information stored in the database, the database records any maintenance information of a user on the part, the digital twin body of the equipment is built and then is stored in the server end in a light-weight compression mode, the user accesses the digital twin body in a WEB mode, the safety of the digital model is guaranteed, meanwhile, hardware support required by the client is reduced, and the user can conveniently access the system at a mobile phone end and a tablet end according to requirements.
The database Server adopts a B/S (Browser/Server Browser-Server) system mode, an application program module at a Client end is separated from a display function, the application program module is arranged at a Server end, and the Client only operates through the Browser, so that the defect of uneven load between a Client end and the Server end in a C/S (Client/Server Client-Server) mode is effectively avoided, and the insecurity of an F/S (File/Server File-Server) mode File is avoided.
The equipment supplier and the part manufacturer can obtain partial access authority of the database server; the inventory, life cycle and maintenance records of the parts are synchronized to a supplier server in real time, reference information is provided for supplier organization production, product technology improvement, new product research and development and logistics freight, equipment and part information in the system is in butt joint with the supplier in the process from equipment sale to enterprise and abandonment, and the supplier organizes product research and development transformation by using the obtained information, so that technical support and guarantee are provided for early life cycle management (concept-design-production) before the products are sold to the enterprise. The dynamic management of the equipment accessories can improve the utilization rate of the equipment, when the stock quantity is lower than a preset value, an early warning prompt is started, a purchase application is pushed, a purchase order is drawn up by a purchasing part, intermediate links are reduced, and the accuracy of financial budget and the purchasing efficiency of parts are improved.
Finally, it is noted that the above preferred embodiments are merely illustrative of the technical solutions of the present invention and not restrictive, and although the present invention has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the present invention.
Claims (6)
1. A method for managing the life cycle of parts based on an equipment digital twin management platform is characterized by comprising the following steps: the method comprises the following steps of distinguishing parts of the same type in equipment by utilizing the space positioning of an equipment digital twin body, and applying the method to the life cycle management process of the parts, wherein the mathematical model establishment of the part life cycle management method based on the equipment digital twin body management platform comprises the following specific steps:
step1, establishing a part digital twin model with a part origin in an entity;
step2, using the part as an assembly body to establish an equipment digital twin body; the establishment of the equipment digital twin body needs to establish all parts of one equipment in a three-dimensional modeling mode and place the parts in a coordinate system, and the three-dimensional space coordinate value of any part, assembly and component in the equipment relative to the equipment twin body general coordinate origin is a constant matrix and has uniqueness;
step3, establishing a space coordinate value of the part in the digital twin body of the equipment;
step4, adding a space coordinate value of the part in the internal space of the equipment digital twin body into the physical attribute of the part;
the part lifecycle management method based on the equipment digital twin management platform further comprises a database server for storing the digital twin model and part lifecycle data, and a client for performing data interaction with the database server.
2. The method for managing the life cycle of the parts based on the equipment digital twin management platform according to claim 1, wherein: step2, using the part as an assembly body to establish an equipment digital twin body;
all parts of one device are required to be established in a coordinate system in a three-dimensional modeling mode, and any part, assembly and component in the device are a constant matrix relative to the three-dimensional space coordinate value of the origin of the overall coordinate of the device twin, so that the device twin has uniqueness.
3. The method for managing the life cycle of the parts based on the equipment digital twin management platform according to claim 1, wherein: step3, establishing a space coordinate value of the part in the equipment digital twin;
the original point of the part needs to be ensured to be positioned inside the entity of the digital twin body of the part, and the original point is introduced into the inside of the digital twin body of the equipment in the part assembling process to generate the three-dimensional space coordinate value attribute of the part.
4. The method for managing the life cycle of the parts based on the equipment digital twin management platform according to claim 1, wherein: at the beginning of system establishment, equipment is not in a brand-new unused state before the system is operated on line, the first life cycle value of the part recorded by the system is an invalid value, and when the part is replaced for the second time, the real and effective life cycle predicted value is recorded by a system database of the server.
5. The method for managing the life cycle of the parts based on the equipment digital twin management platform according to claim 1, wherein: the client is a WEB and 3D operation interface, remotely accesses a 3D digital model of the equipment digital twin body stored in the database server, the equipment digital twin body uses the part name and the part coordinate to interact with information stored in the database, and the database records any maintenance information of the user on the part.
6. The method for managing the life cycle of the parts based on the equipment digital twin management platform according to claim 1, wherein: the database Server adopts a Browser/Server Browser-Server system mode, an application program module at a client end is separated from a display function, the application program module is arranged at the Server end, and the client only operates through a Browser.
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| EP3435272B1 (en) * | 2017-07-27 | 2020-11-04 | Siemens Aktiengesellschaft | Method and device for identifying an additive work piece |
| CN110070603A (en) * | 2019-03-21 | 2019-07-30 | 江苏东方国信工业互联网有限公司 | Furnace body simulation system and method based on digital twins |
| CN110160783A (en) * | 2019-04-13 | 2019-08-23 | 江苏宋和宋智能科技有限公司 | A kind of jacquard sliding bearing monitoring system and method based on the twin technology of number |
| CN110147069B (en) * | 2019-04-28 | 2022-04-12 | 武汉理工大学 | Working method of port real-time monitoring system based on digital twin |
| CN111027165B (en) * | 2019-07-19 | 2022-05-03 | 北京航空航天大学 | Power battery pack management system and method based on digital twinning |
| US20210097507A1 (en) * | 2019-09-26 | 2021-04-01 | Rockwell Automation Technologies, Inc. | Presentation of an overview of product lifecycle risk for components in an industrial environment |
| CN110866334A (en) * | 2019-11-05 | 2020-03-06 | 中国海洋石油集团有限公司 | Drilling tool state evaluation method and system based on digital twinning |
| CN111565123B (en) * | 2020-05-07 | 2022-10-04 | 联桥网云信息科技（长沙）有限公司 | Real-time representation visualization method for 3D model of running state of Internet of things equipment |
| CN111950133B (en) * | 2020-07-24 | 2022-04-26 | 华东交通大学 | Engine reliable life prediction method based on digital twinning |
| US11687879B2 (en) | 2020-12-17 | 2023-06-27 | International Business Machines Corporation | Providing digital twin assets based off of work orders |
| CN112668237B (en) * | 2020-12-25 | 2023-06-16 | 深圳华龙讯达信息技术股份有限公司 | Digital twin model based on industrial Internet cloud platform and construction method thereof |
| CN112633532B (en) * | 2020-12-29 | 2023-06-02 | 上海工程技术大学 | Train wheel maintenance management system based on digital twin technology |
| CN114756985B (en) * | 2022-04-01 | 2023-06-23 | 中车大连机车研究所有限公司 | Rail transit cylindrical roller bearing design method |
| CN115129909B (en) * | 2022-06-30 | 2024-05-07 | 北京亚控科技发展有限公司 | Method and device for twinning and subscribing historical states of physical objects |
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