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Corrosion data reliability judgment method and system used for airplane structure performance prediction

A technology for aircraft structure and performance prediction, applied in prediction, data processing applications, electrical digital data processing, etc. problem, to achieve the effect of improving the accuracy

Inactive Publication Date: 2018-02-09
GUANGZHOU CIVIL AVIATION COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are often outliers in the corrosion data found in the inspection process of aircraft structure maintenance, and the outliers in corrosion data are not suitable for general evaluation, and cannot be used as the basis for evaluating the performance prediction of aircraft structures, which will interfere with the performance of aircraft structures Forecasting results, it is easy to make the evaluation prediction results differ greatly from the actual situation, thus reducing the accuracy of the evaluation prediction results

Method used

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  • Corrosion data reliability judgment method and system used for airplane structure performance prediction
  • Corrosion data reliability judgment method and system used for airplane structure performance prediction
  • Corrosion data reliability judgment method and system used for airplane structure performance prediction

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Embodiment 1

[0056] Such as figure 1 As shown, the method for judging the reliability of corrosion data for aircraft structural performance prediction, the method includes the following steps:

[0057] Constitute all corrosion data corresponding to the same type of aircraft structural parts into a corrosion data array;

[0058]According to the total number of corrosion data contained in the corrosion data array and the standard deviation of the corrosion data array, use the Grubbs method to judge the applicable corrosion data from the corrosion data array.

[0059] As a preferred implementation of this method embodiment, according to the total number of corrosion data contained in the corrosion data array and the standard deviation of the corrosion data array, the applicable corrosion data is determined from the corrosion data array using the Grubbs method A step comprising the following sub-steps:

[0060] According to the total number of corrosion data contained in the corrosion data a...

Embodiment 2

[0079] The program system corresponding to the above method, such as figure 2 As shown, the corrosion data reliability judgment system for aircraft structure performance prediction, the system includes:

[0080] An array constituting unit is used to form a corrosion data array of all corrosion data corresponding to the same type of aircraft structural parts;

[0081] The data judging unit is used for judging the applicable corrosion data from the corrosion data array by using the Grubbs method according to the total number of corrosion data contained in the corrosion data array and the standard deviation of the corrosion data array.

[0082] As a preferred implementation of this system embodiment, the data judging unit specifically includes:

[0083] The first acquisition module is used to obtain the corresponding Grubbs critical value according to the total number of corrosion data contained in the corrosion data array and the set significance level value;

[0084] The fir...

Embodiment 3

[0094] A software-hardware combination system corresponding to the above method, a corrosion data reliability judgment system for aircraft structural performance prediction, the system includes:

[0095] memory for storing programs;

[0096] a processor for loading said program and performing the following steps:

[0097] Constitute all corrosion data corresponding to the same type of aircraft structural parts into a corrosion data array;

[0098] According to the total number of corrosion data contained in the corrosion data array and the standard deviation of the corrosion data array, use the Grubbs method to judge the applicable corrosion data from the corrosion data array.

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Abstract

The invention discloses a corrosion data reliability judgment method and system used for airplane structure performance prediction. The system comprises an array forming unit and a data judgment unit.The method comprises the following steps that: forming a corrosion data array by all corrosion data corresponding to airplane structural members of the same type; and according to the total number ofthe corrosion data contained in the corrosion data array and the standard deviation of the corrosion data array, utilizing a Grubbs method to judge appropriate corrosion data from the corrosion dataarray. By use of the method and the system of the invention, the appropriate corrosion data with high reliability can be obtained, and the accuracy of a subsequent airplane structure performance assessment and prediction result is improved. The corrosion data reliability judgment method and system can be widely applied to the field of civil aircraft performance prediction.

Description

technical field [0001] The invention relates to a structure performance prediction data processing technology, in particular to a corrosion data reliability judgment method and system suitable for aircraft structure performance prediction. Background technique [0002] Corrosion is the main form of structural damage during the operation of civil aircraft. After the civil aircraft enters the stage of aging aircraft, the corrosion problem will become more and more serious with the increase of aircraft age, which has caused huge economic losses to airlines, and the corrosion failure of the main structure of the aircraft will directly affect flight safety, and even lead to catastrophic as a result of. Therefore, there is an urgent need to carry out research on corrosion performance prediction of aircraft structures. [0003] According to the aircraft structure corrosion inspection program provided by the aircraft design unit, the purpose of formulating and implementing an effe...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q10/04
CPCG06F30/15G06F2119/04G06Q10/04
Inventor 黄昌龙叶宝玉李慎兰徐海蓉刘传生
Owner GUANGZHOU CIVIL AVIATION COLLEGE