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FTA-based airplane atrocious weather environment fault test analysis method

A technology of severe weather and analysis methods, applied in aircraft component testing, machine/structural component testing, prediction, etc., can solve problems such as unfavorable aircraft climate test design, prevent the occurrence of aircraft severe weather environment accidents, and ensure that the mapping relationship is true and feasible. Trustworthy, Applicable Effects

Active Publication Date: 2022-05-13
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: the existing technology lacks the method for analyzing the failure caused by the harsh climate environment of the aircraft, which is not conducive to the design of the aircraft climate test in the climate environment laboratory of the whole machine, and then provides a kind of aircraft based on FTA Weather environment failure test analysis method, analyzing the risk importance from the degree of aircraft damage caused by severe weather environment

Method used

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  • FTA-based airplane atrocious weather environment fault test analysis method
  • FTA-based airplane atrocious weather environment fault test analysis method
  • FTA-based airplane atrocious weather environment fault test analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] This embodiment is an FTA-based method for testing and analyzing aircraft harsh weather environment faults, such as figure 1 shown, including the following steps:

[0061] S1. Determine the flight accident caused by the bad weather environment as a fault tree top event;

[0062] S2. Statistical analysis of accidents and accident symptoms related to climate factors, statistics of accidents and accident data related to climate factors at home and abroad, and stored in the database. The source of accident data is domestic and foreign flight accident databases. The domestic and foreign flight accident databases include: United States National Transportation Safety Board (NTSB), Aviation Accident and Incident Data System (AAIDS), FAA Accident Data System (AIDS);

[0063] S3. Analyze the set of severe weather factors that induce aircraft accidents and build a fault tree, which specifically includes the following steps:

[0064] S3-1. Perform Boolean algebra operation to fin...

Embodiment 2

[0078] This embodiment is an FTA-based method for testing and analyzing aircraft harsh weather environment faults, such as figure 1 shown, including the following steps:

[0079] S1. Determine the flight accident caused by the bad weather environment as a fault tree top event;

[0080] S2. Statistical analysis of accidents and accident symptoms related to climate factors, statistics of accidents and accident data related to climate factors at home and abroad, and stored in the database. The source of accident data is domestic and foreign flight accident databases. The domestic and foreign flight accident databases include: United States National Transportation Safety Board (NTSB), Aviation Accident and Incident Data System (AAIDS), FAA Accident Data System (AIDS);

[0081] S3. Analyze the set of severe weather factors that induce aircraft accidents and build a fault tree, which specifically includes the following steps:

[0082] S3-1. Perform Boolean algebra operation to fin...

Embodiment 3

[0124] The present embodiment is a FTA-based method for testing and analyzing aircraft harsh weather environment faults, comprising the following steps:

[0125] S1. Determine the flight accident caused by the bad weather environment as a fault tree top event;

[0126] S2. Statistical analysis of accidents and accident symptoms related to climate factors, statistics of accidents and accident data related to climate factors at home and abroad, and stored in the database. The source of accident data is domestic and foreign flight accident databases. The domestic and foreign flight accident databases include: United States National Transportation Safety Board (NTSB), Aviation Accident and Incident Data System (AAIDS), FAA Accident Data System (AIDS);

[0127] S3. Analyze the set of severe weather factors that induce aircraft accidents and build a fault tree, which specifically includes the following steps:

[0128] S3-1. Perform Boolean algebra operation to find the minimum cut ...

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Abstract

The invention provides an airplane atrocious weather environment fault test analysis method based on FTA, and belongs to the technical field of airplane test. Comprising the following steps: S1, determining a flight accident caused by an atrocious weather environment as a fault tree top event; s2, carrying out statistical analysis on accidents related to climate factors and accident symptoms; s3, analyzing a set of atrocious climate factors inducing the aircraft accident and constructing a fault tree; s4, constructing an airplane atrocious weather environment fault risk degree model; and S5, predicting the importance degree of the atrocious climate factors on the flight safety influence risk. The method solves the problem that the prior art lacks a fault analysis method for an airplane in an atrocious climate environment and is not beneficial to airplane climate test design in a whole machine climate environment laboratory, and has the advantages of being simple and easy to operate and high in applicability.

Description

technical field [0001] The invention relates to the technical field of aircraft testing, in particular to an FTA-based method for testing and analyzing aircraft severe weather environment faults. Background technique [0002] Aircraft and their ground support equipment will inevitably encounter harsh climatic conditions such as high temperature, high cold, damp heat, rainfall, snowfall, fog, freezing rain, wind, and solar radiation during their service. The physical or chemical properties of the materials of its ground support equipment will adversely affect its performance, resulting in its performance degradation, limited functions, and even threatening combat enablement. For example, when an aircraft takes off under severe weather conditions such as snowfall, fog, and rainfall, the pilot makes an operation error due to poor visibility and causes the aircraft to crash. The military transport aircraft forms ice due to freezing rain, and needs to be thawed in a large area be...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/30G06F16/2458G06F16/22G01M99/00B64F5/60
CPCG06Q10/04G06Q10/0635G06F16/2462G06F16/2246G01M99/005B64F5/60G06Q50/40
Inventor 张亚娟张惠邓文亮田培强张昭吴敬涛任战鹏
Owner CHINA AIRPLANT STRENGTH RES INST
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