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Method for identifying dangerous factors in a bird suction event of an aero-engine

An aero-engine and risk factor technology, applied in the field of aero-engine anti-bird strike analysis and design, can solve problems affecting flight safety and achieve good and innovative results

Active Publication Date: 2019-06-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no identification method of risk factors in aero-engine bird-sucking incidents in China. The present invention aims to provide a method for analyzing bird-sucking data, through which risk factors affecting flight safety can be found

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  • Method for identifying dangerous factors in a bird suction event of an aero-engine
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  • Method for identifying dangerous factors in a bird suction event of an aero-engine

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0036] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0037] see figure 1 And as shown in Table 1 to Table 5, it is an embodiment of the identification of risk factors affecting flight by an engine bird-absorbing event. The method of the present invention is adopted below, and between 1990 and 2015 disclosed by the U.S. Federal Aviation Administration (Federal Aviation Administration, FAA). Taking the data on the impact of wild animals (mainly birds) on aircraft as an example, describe in detail the implementation steps for identifying t...

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Abstract

The invention discloses a method for identifying dangerous factors in a bird suction event of an aero-engine. Logistic regression analysis is carried out on data of various factors such as the flightheight, the speed, the number of sucked birds, the meteorological condition and the time period in the engine bird suction event statistical data, and the influence degree of the various factors on flight safety after an engine sucks birds is obtained. The method is applied to big data statistics and analysis of the bird suction event of the engine, and the regression result is analyzed to obtainthe probability of influence of each factor in the bird suction event on flight safety. The method has good innovativeness, can help an engine to develop, use and manage units to identify dangerous factors, influencing flight safety, of bird suction events of the engine, and provides technical guidance and initial data input for design and analysis of bird suction events of the engine and bird impact damage resistance of the engine.

Description

technical field [0001] The invention relates to the field of anti-bird impact analysis and design of aero-engines, and relates to a method for identifying risk factors in bird-absorbing incidents of aero-engines. Background technique [0002] The problem of large bypass ratio turbofan engines attracting birds should not be underestimated. At present, the airport bird strike accident has been recognized as an "A" aviation disaster by the International Aviation Federation, which shows the threat it poses to aviation safety. [0003] In order to ensure the safety of the use of aero-engines, people have developed airworthiness regulations or military standards to regulate the minimum standards for the structure, safety, and performance design methods of the engine after bird ingestion, and finally prove the safety of the engine after ingesting birds through the bird-inhalation compliance verification The developed countries of European and American airlines have formed a complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06
CPCY02A90/10
Inventor 吴春波罗刚陈伟刘双丽张晟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS