Flight malfunction determining method based on simulation

Abstract

The invention relates to a flight malfunction determining method based on simulation. The method includes the following steps: a first step of establishing an aircraft simulation model which highly simulates malfunction and other special conditions; a second step of determining corresponding malfunction determination rules; a third step of making emergency handling methods for malfunction and other special conditions; a fourth step of performing flight simulation analysis based on real-time flight operation; a fifth step of comparing responding data of the model with remote-sensing data, and determining whether the aircraft is malfunctioned or at other special conditions; and a sixth step of providing emergency handling methods with respect to the malfunction and other special conditions, thus ensuring safe flight. Compared with manual interpretation, the method can process more data at the same time, and has efficient interpretation; and compared with the safety-boundary determination method, the method can determine the presence of malfunction in a plurality of abnormal data which are within the boundary, and can provide a conclusion earlier and accurately. The method can provide corresponding emergency handling methods with respect to specific malfunction, guides an aviator on how to conduct following operations, lowers risks in test flight, ensures safe flight, and also greatly increases test efficiency.

Description

technical field [0001] The method is used for flight fault judgment, that is, the simulation model is used to analyze the real-time telemetry data of the flight test, and quickly judge whether the test machine in flight is in a fault state, thereby improving the timeliness and accuracy of the test machine fault judgment. Background technique [0002] Flight test is a highly difficult and high-risk task to expose and discover design and manufacturing problems and defects. Flight efficiency and flight safety have always been accompanied by the entire test flight process and have become unavoidable and severe problems in test flights, especially in recent years. In the future, the complexity and integration of aircraft systems are getting higher and higher, and the possibility of failures in flight is getting higher and higher, making flight tests more and more complicated, more difficult, and more risky. [0003] At present, there are two ways to judge the flight failure of th...

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Problems solved by technology

[0002] Flight test is a highly difficult and high-risk task to expose and discover design and manufacturing problems and defects. Flight efficiency and flight safety have always been accompanied by the entire test flight process and have become unavoidable and severe problems in test flights, especially in recent years. In the future, the complexity and integration of aircraft systems are getting higher and higher, and the possibility of failures in flight is getting higher and higher, making flight tests more and more complicated, more difficult, and more risky

[0003] At present, there are two ways to judge the flight failure of the test aircraft. One is manual interpretation. However, since the telemetry data exceeds 2,000 and is refreshed more than 2 times per second, the efficiency of manual interpretation alone is low, and it is difficult to comprehensively monitor all key data and give Judgment of the fault state; the second is to set a safety boundary for each telemetry data for automatic judgment, but data exceeding the boundary often indicates that the aircraft fault is already in a very serious state, and it is impossible to perform fault judgment on abnormalities with multiple associated data that do not exceed the boundary , the timeliness and accuracy of the judgment are not enough

[0004] Because the pilots cannot make correct judgments and deal with the special situations in the test flight, the test flight data is invalid, which affects the test flight efficiency, and even major accidents or accidents of aircraft crashes occur in various countries in the world.

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