Diagnostic prediction method based on TDP model

Abstract

The invention discloses a diagnostic prediction method based on a TDP model. TDP modeling includes the steps of 1, firstly, deeply analyzing the physical composition of a system and the connection relations of all the parts, and establishing a structure model based on a system working principle; 2, through functional principle analysis, forming a skeleton model; 3, using FMEA and other fault analysis methods to find key components and key faults which affect system performances; 4, analyzing test items at each test point, signals and behavior which can be observed in each test and prediction information of each test, and adding corresponding diagnosis prediction information obtained through analysis to the TDP skeleton model. The diagnostic prediction method for achieving the TDP model includes the steps of 1, TDP modeling based on the system principle and multi-signal flow, 2, diagnosis strategy optimization based on the TDP model, and 3, fault state identification and fault prediction based on the TDP model. According to the method, not only can the model evaluate the fault diagnosis and prediction ability of the system, but also model information can support fault prediction ofthe system.

Description

technical field [0001] The invention relates to a diagnosis and prediction method based on a TDP model, and belongs to the technical field of fault diagnosis and prediction. Background technique [0002] Flight safety is the common pursuit of the global civil aviation industry and the foundation of the development of the civil aviation industry. It will not only affect the image and economic interests of the civil aviation industry, but more importantly, it is related to the life and property safety of passengers and crew members. A series of factors such as pilot's operating ability, aircraft system failure, maintenance quality, and weather will have an impact on civil aviation safety, among which aircraft system failure and maintenance quality have the most important impact on safety. For airlines, it is their goal to reduce operating costs as much as possible and improve economic efficiency under the condition of ensuring the safe operation of aircraft. Therefore, reducin...

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Problems solved by technology

[0004] The present invention is aimed at the deficiencies in the prior art, and provides a diagnosis and prediction method based on the TDP model, so as to solve the deficiencies in the prior art and meet the actual use requirements

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