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Rapid decision-making method and system for aviation failure

A decision-making method and fast technology, applied in the direction of instruments, database models, design optimization/simulation, etc., can solve problems such as low efficiency and affecting diagnosis results, and achieve the effect of rapid diagnosis

Pending Publication Date: 2022-08-05
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method relies too much on the experience of personnel, requires a lot of manual participation, and is inefficient, and the uncertainties of personnel will affect the quality of the diagnostic results.

Method used

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  • Rapid decision-making method and system for aviation failure
  • Rapid decision-making method and system for aviation failure

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Experimental program
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Effect test

Embodiment 1

[0049] A rapid decision-making method for aviation failure in this embodiment, such as figure 1As shown, the present invention discloses a rapid decision-making method for aviation failure. The method can be based on the decision-making information (failure mechanism, failure mode, failure cause, preventive measures, etc.) and basic information (non-decision-making information such as aircraft type, service time, material grade, flight take-off and landing, material status, etc.) recorded in historical case information. Make analytical decisions. Including: failure co-word analysis, independent acquisition of case representation keywords; based on case representation keywords, realize association rule mining between decision information and basic information, and form failure rule bodies; for the obtained failure rule bodies, combine failure co-word analysis results , to complete the construction of the rule decision-making model, and form a diagnostic model for rapid decisio...

Embodiment 2

[0053] This embodiment is further optimized on the basis of Embodiment 1. In this embodiment, the failure mode library mainly includes the management of failure modes; the graph library mainly includes the management of failure case graphs; the rule term library mainly includes Terminology management for relevant information in failure cases.

[0054] The other parts of this embodiment are the same as those of Embodiment 1, and thus are not repeated here.

Embodiment 3

[0056] This embodiment is further optimized on the basis of the above-mentioned Embodiment 1 or 2. In this embodiment, the calculation of the co-word matrix is ​​mainly to unify the terminology and failure mode of the information in the case base for the data in the termbase, and then unify the information in the case base. Statistically summarize the content of keywords with a co-word frequency of not less than 1, and use the Cosine coefficient for standardization.

[0057] The other parts of this embodiment are the same as the above-mentioned Embodiment 1 or 2, and thus are not repeated here.

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Abstract

The invention relates to the field of aviation mechanical part failure decision making, and provides a rapid aviation failure decision making method and system which can perform analysis decision making based on decision making information and basic information recorded in historical case information. Comprising the steps of performing failure co-word analysis, and autonomously obtaining case characterization keywords; on the basis of case characterization keywords, association rule mining of decision information and basic information is achieved, and a failure rule body is formed; and for the obtained failure rule main body, in combination with a failure co-word analysis result, completing rule decision model construction, and forming a diagnosis model for rapid decision. According to the method, rapid diagnosis of possible reasons of failure can be realized, and corresponding historical case knowledge is provided to assist in further analysis.

Description

technical field [0001] The invention relates to the technical field of aviation failure decision-making, in particular to a rapid decision-making method and system for aviation failure, which are used for rapid diagnosis and decision-making for aviation failure. Background technique [0002] With the development of modern science and technology, the safety and reliability requirements of aviation equipment are increasing day by day, and the structure, function, bearing and service environment of mechanical components are becoming more and more complex, and the subsequent failures of mechanical parts are unavoidable. Because the failure of mechanical components is often the result of the coupling of multiple factors, the corresponding analysis work is increasingly complex. In order to quickly and accurately diagnose and analyze faults, relying solely on failure analysis experts is far from meeting engineering needs. In the current failure decision-making process, it mainly re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/20G06F16/2458G06F16/28G06F16/22
CPCG06F30/17G06F30/20G06F16/285G06F16/2465G06F16/2462G06F16/22G06F2119/02
Inventor 杜娟刘顺涛虞文军赵伟高深远孙涛谭瑶
Owner CHENGDU AIRCRAFT INDUSTRY GROUP