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Product fault triggering and propagating method

A product and fault technology, which is applied in the field of stochastic colored petri nets to express fault correlation and state transfer, and can solve problems that do not involve network information flow calculation and analysis

Inactive Publication Date: 2017-05-17
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although various Petri nets have appeared, which solved the dynamic expression and description of network information in engineering systems, they did not involve the calculation and analysis of network information flow.

Method used

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  • Product fault triggering and propagating method
  • Product fault triggering and propagating method
  • Product fault triggering and propagating method

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Embodiment Construction

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention belongs to the field of aviation product fault analysis and provides a product fault triggering and propagating method. The method includes the steps of firstly, performing product fault mode analysis, and building various input and output relations causing product faults; classifying fault modes according to the influence of the product faults on a system; secondly, using the place of a Petri network to represent a part, using tokens in the place to represent product fault modes, coloring the tokens with different colors according to the influence differences of the fault modes, and giving different attributes to transition to express token-fault cause-effect propagation relations so as to establish the colored Petri network model of the product faults; thirdly, using a Montel-Carl random sampling method to generate a [0, 1] interval random number, sorting the occurrence frequency ratio of different fault modes of the aviation products in the [0, 1] interval, and triggering the product fault mode during system fault model building according to the fault mode of the interval corresponding to the random number.

Description

technical field [0001] The invention belongs to the field of failure analysis of aviation products, and in particular relates to a method for triggering failure modes by using a random sampling method, and expressing failure correlation and state transfer by using random colored petri nets. Background technique [0002] With the development of modern industry, the research and development of aviation weapons and equipment has entered a stage of multi-functional and all-weather rapid development. Uncertainty is difficult to determine and control from cognition and technical means due to the complex cross-linking relationship. At the same time, due to the randomness of the environment, the system is always accompanied by diverse physical uncertainties in the process of performing functions, which will inevitably affect the effectiveness of functions. , and even cause safety hazards or accidents, these changes have brought huge challenges to aviation equipment reliability, safe...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 严拴航薛海红王瑶
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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