FTA and FMEA integrated analysis method based on MBSE

Abstract

The invention provides an MBSE-based FTA and FMEA integrated analysis method. The MBSE-based FTA and FMEA integrated analysis method comprises the following steps: S1, determining an analysis object; performing function design by adopting an activity graph in the MBSE; s2, carrying out fault analysis on each module in the activity graph, listing corresponding faults of functional modules, and indicating a relationship; s3, along with layer-by-layer refinement of the function design of the MBSE, continuing to implement the step S2 at the corresponding level; s4, the MBSE is operated, and EXCEL is output; s5, the EXCEL is read through a plug-in, data are processed, and FTA and FMEA are automatically generated at the same time; and S6, the design process information is maintained in time, and the steps S2 to S5 are repeated. According to the method, the MBSE theory and method are utilized, fault analysis is synchronously carried out with function design, and FMEA and FTA are integrally implemented; the consistency of fault analysis information is improved, and the efficiency of fault analysis is improved.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to an integrated analysis method of FTA and FMEA based on MBSE. Background technique [0002] Model-based systems engineering (MBSE) is an emerging technology in aerospace models. According to the principles of systems engineering, systematic and modeled system organization, highly integrated, integrated management and specific implementation can effectively improve work quality and efficiency. Carry out FTA and FMEA work integrated with product design with the help of MBSE's thinking and technical tools. [0003] The traditional FMEA (failure mode and effect analysis) work is mainly in accordance with GJB1391 / Z "Guidelines for Failure Mode, Effect and Hazard Analysis", and FTA is mainly in accordance with GJB / Z 768 "Guidelines for Fault Tree Analysis", both of which are reliability work Important content, but the two are as two independent work items, and there is a lack of org...

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Problems solved by technology

[0003] The traditional FMEA (failure mode and effect analysis) work is mainly in accordance with GJB1391 / Z "Guidelines for Failure Mode, Effect and Hazard Analysis", and FTA is mainly in accordance with GJB / Z 768 "Guidelines for Fault Tree Analysis", both of which are reliability work Important content, but the two are as two independent work items, there is a lack of organic connection in the middle, or in other words, an artificial connection is required between the two

[0004] FTA (Fault Tree Analysis) analysis is carried out from top to bottom, and FMEA is carried out from bottom to top. There is inconsistency in fault description; on the other hand, there is a lot of duplication between the two, resulting in duplication of work

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