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System and method for automatic construction of fault tree of mechanical products based on improved fmeca

A mechanical product and automatic construction technology, applied in the field of digital research and development, can solve problems such as the inability to systematically construct mechanical products, difficulty in building fault trees, and unreusable data, so as to improve work efficiency, avoid input errors, and improve reusability Effect

Active Publication Date: 2022-03-25
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a system and method for automatically constructing fault trees based on improved FMECA mechanical products, which solves the problems of inability to systematically construct FMECA for mechanical products, difficulty in constructing fault trees, and unreusable data

Method used

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  • System and method for automatic construction of fault tree of mechanical products based on improved fmeca
  • System and method for automatic construction of fault tree of mechanical products based on improved fmeca
  • System and method for automatic construction of fault tree of mechanical products based on improved fmeca

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Embodiment 1

[0052] Such as figure 1 Shown, the present invention provides a kind of fault tree automatic construction system based on improved FMECA mechanical product, comprising:

[0053] The PDM system integration module is used to define the integrated interface protocol with the PDM system, by sending the material code and version affecting the mechanical product parts to the PDM system, and obtaining the material information through the PDM system according to the integrated interface protocol, and constructing according to the material information An EBOM structure tree of a material, wherein the material information includes material attributes and hierarchical relationship information;

[0054] In this embodiment, the PDM system integration module is used to obtain the material code and version that the user inputs to make a fault tree, and the system calls the PDM system integration interface according to the material code and version to obtain the EBOM structure information of ...

Embodiment 2

[0063] Such as figure 2 Shown, the present invention provides a kind of automatic construction method based on improved FMECA mechanical product fault tree, and its implementation method is as follows:

[0064] S1. Integrated PDM system: used to define the integrated interface protocol with the PDM system, by sending the material code and version affecting the mechanical product parts to the PDM system, and obtaining material information through the PDM system according to the integrated interface protocol, according to the material information Construct the EBOM structure tree of material, wherein, described material information comprises material attribute and hierarchical relationship information, and its realization method is as follows:

[0065] S101. Define an integrated interface protocol with the PDM system, and define input and output attribute fields;

[0066] S102. Invoke the PDM system integration interface according to the material code and version input by the ...

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Abstract

The invention provides a system and method for automatically constructing fault trees of mechanical products based on improved FMECA, belonging to the field of digital research and development. Obtain the input material code and version, obtain the EBOM information of the material; construct the FMECA of the material, and construct the fault tree framework; map the fault tree framework data to the fault tree visualization template, and generate the final product or component fault tree. The invention breaks through the isolated islands of data on the design side and data on the server side, effectively avoids input errors by designers, and at the same time, converts traditional paper materials into structured data, improves data reusability, and can obtain products or components in the design stage FMECA can improve product design, and can simulate products or components based on the failure mechanism to improve their reliability. It can also obtain the fault tree of products or components on the server side for fault diagnosis of products, reduce the labor intensity of designers, and provide work staff productivity.

Description

technical field [0001] The invention belongs to the technical field of digital research and development, and in particular relates to a system and method for automatically constructing fault trees of mechanical products based on improved FMECA. Background technique [0002] At present, the reliability of mechanical products has attracted more and more attention, and the research on reliability has become more in-depth. Virtual simulation, as an important method to drive product design, pre-defect and verify system reliability performance, has been widely used in the industry in recent years. However, for most mechanical products, such as construction machinery, which have the characteristics of multiple varieties, small batches and short development cycles, designers often do not have time to analyze which components can improve their reliability through simulation. Fault Tree Analysis (FTA) for mechanical products is a powerful tool widely used in the safety and reliabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0248
Inventor 张贺葛晓波邵晓东
Owner XIDIAN UNIV
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