Electromechanical equipment digital twin model consistency maintaining method

A consistent and digital technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems that cannot reflect the performance of physical electromechanical equipment and cannot be implemented, and achieve the effect of accurate model support and guaranteed applicability

Active Publication Date: 2019-05-24
SHANDONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, with the change of time, the performance of electromechanical equipment gradually decays. Due to the influence of the performance attenuation of electromechanical equipment, the digital twin model of electromechanical equipment that remains unchanged cannot reflect the performance of physical electromechanical equipment. If there is no accurate modeling description of physical equipment by digital twin models , the so-called electromechanical equipment system is passive water, which cannot be implemented

Method used

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  • Electromechanical equipment digital twin model consistency maintaining method
  • Electromechanical equipment digital twin model consistency maintaining method
  • Electromechanical equipment digital twin model consistency maintaining method

Examples

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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment provides a method for maintaining the consistency of the digital twin model of electromechanical equipment, which is applied to the consistency of the digital twin model between the digital space and the physical space. The electromechanical equipment data collected by the data sensing device in the space is mapped to the digital space (a digital twin modeling method for CNC machine tools, which is described in detail in the application number 201711434013X), and then through the data processing module, performance attenuation update module, The self-updating digital twin overall building block gets the updated digital twin.

[0027] Data sensing devices include sensors, controllers, electronic tags, etc. It is used to collect relevant data information of hardware devices in physical space, and then map relevant data information to digital space through the mapping module.

[0028] The data processing module includes data mai...

Embodiment 2

[0033] Such as figure 2 with image 3 As shown, using the technical solution provided in Example 1, the implementation process of model self-update is described by taking the wear update of a sliding guide rail of electromechanical equipment as an example:

[0034] First, use the Ansys parametric design language APDL to establish a parametric CAD model of the guide rail, use the mapping data as boundary conditions to conduct finite element wear analysis on the model, extract the normal stress of the contact surface of many nodes, and use the Archard wear theory Calculate the wear amount of the nodes, read the wear amount of the nodes into the simulation environment through the *VREAD command, and update the nodes of the parameterized sliding guideway model to complete a wear update, perform a modal analysis on the updated sliding guideway, and obtain the MNF( Modal neutral file), write a modal neutral file to analyze the static link library, import the modal information of ...

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Abstract

The invention relates to an electromechanical equipment digital twin model consistency maintaining method. The method is applied to digital twinning model consistency of a digital space to a physicalspace. a digital twinning mapping module is arranged between the physical space and the digital space; Electromechanical equipment data collected by a data sensing device in a physical space is mappedto a digital space, and an updated digital twin model is obtained through a data processing module, a performance attenuation updating module and a self-updating digital twin model overall construction module in the digital space. The electromechanical equipment digital twin model consistency maintaining method comprises the following steps: carrying out modal analysis on a performance attenuation part; and analyzing the function static link library file through the modal neutral file, combining the performance attenuation part with other associated part systems, constructing an integrity attenuation updating electromechanical equipment digital twinning model, maintaining the consistency with physical electromechanical equipment in the use period, and providing support for data communication in the whole use period.

Description

technical field [0001] The invention relates to a method for maintaining the consistency of a digital twin model of electromechanical equipment, belonging to the technical field of intellectualization and digitization of electromechanical equipment. Background technique [0002] In recent years, with the development of CPS (Cyber-Physical Systems) technology, Digital Twin (Digital Twin) technology has gradually become a hot spot in academic research. By constructing the twin body of physical space equipment in digital space, physical space and digital space coexist virtual and real, realizing a comprehensive, real, objective and real-time mapping of the digital world to the physical world. [0003] With the continuous development of technology, electromechanical equipment has also begun to develop towards digitalization, automation, intelligence and flexibility. Its development is an important symbol to measure the comprehensive national strength of a country's scientific an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 胡天亮魏永利张承瑞陶飞
Owner SHANDONG UNIV
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