Aeroengine critical system hazard analysis system and method

Abstract

The invention provides an aeroengine critical system hazard analysis system and method. The method comprises the steps that a hierarchy structure diagram and a flow diagram of a control component, an oil component and an ignition start component are built; the work state of all sub-functions is set; the execution state of each sub-function in the work state is simulated, so as to identify all potential hazards; hazard grading classification is carried out on each potential hazard, and whether the hazard grade of each potential hazard is higher than a threshold is determined; for the potential hazards higher than the thresholds, the reasons of the potential hazards are determined and the potential hazards higher than the thresholds and the reasons are sent to a client control terminal; the client control terminal determines hazard eradication and control measures according to the received information, and amend an aeroengine critical system according to the hazard eradication and control measures. According to the invention, the hazard eradication and control measures of an aeroengine can be verified, and the hazard eradication and control measures of the aeroengine are improved according to results to ensure the safety of an aircraft.

Description

technical field [0001] The invention relates to the field of aviation safety, in particular to a risk analysis system and method for a key system of an aeroengine. Background technique [0002] Aeroengine is a power machine that burns gas at high speed and high temperature and works under high load. This kind of complex thermal rotating machinery is developed by comprehensively using scientific and technological achievements in aerothermodynamics, combustion, structural mechanics, automatic control technology, materials, technology, testing, etc. It is composed of tens of thousands of precision parts in one In a space where the size is strictly limited. Aeroengines work under harsh conditions with a wide range of pressure, temperature, speed, and stress. Not only must they meet many special requirements in terms of performance, combat applicability, and environment, but as a power device for an aircraft, it directly affects the performance of the aircraft. , plays a vital ...

AI Technical Summary

Problems solved by technology

[0007] Although there are safety standards and manuals such as MIL-STD-882E[15], GJB900-90[16], GJB/Z99-97[17] that set requirements and guidance for the development and use of aero-engines, but because they are not It is specifically targeted at aero-engines, so it is not closely integrated with the characteristics of engine development, is not pertinent, lacks specific guidance methods, and needs to be improved in operability;

[0008] At present, most of the engin

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