Aircraft task reliability modeling method based on dynamic characteristics

A technology of dynamic characteristics and modeling methods, which is applied in the fields of instruments, special data processing applications, electrical digital data processing, etc., to achieve the effect of good promotion and application prospects
CN105205271AActive Publication Date: 2015-12-30CHINA ACAD OF LAUNCH VEHICLE TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA ACAD OF LAUNCH VEHICLE TECH
Publication Date
2015-12-30

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Abstract

The invention relates to an aircraft task reliability modeling method based on dynamic characteristics. The method includes the steps of firstly, conducting aircraft system analysis and task analysis, and establishing an aircraft task result state set; secondly, selecting an event tree (ET) method, and establishing an aircraft task process reliability reference model; thirdly, analyzing aircraft initial / middle task reliability characteristics, selecting a dynamic failure tree (DFT) method, a Bayesian network (BN) method, a Markov method and the like, and establishing an initial / middle task reliability characteristic model; fourthly, establishing an aircraft task reliability comprehensive model by compositing the initial / middle task reliability model. By means of the method, the dynamic characteristics in the aircraft complicated task process can be more accurately depicted, the influences of dynamic changes of aircraft system composition at different task stages in the aircraft task process on the aircraft task reliability are comprehensively reflected, and the established task reliability model can be more accurate.
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Description

technical field

[0001] The invention relates to a dynamic characteristic-based aircraft mission reliability modeling method, which belongs to the technical field of system reliability. Background technique

[0002] At present, countries are competing to develop aircraft with multiple uses such as repeated use, long-term on-orbit stay, orbital space maneuvering, and on-orbit mission execution. This type of aircraft has complex structures and functions, many mission stages, and experiences various mission environments, and the mission reliability is affected by the above factors. Therefore, in the process of aircraft development and key mission planning, it is necessary to carry out analysis and evaluation of mission reliability in advance. The establishment of a reliability evaluation model that can fully reflect the characteristics of the aircraft mission process is the basis for the analysis and evaluation of the aircraft mission reliability.

[0003] At present, the esta...

Claims

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