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2011•Journal of Civil Aviation University of ChinaRequires access

Safety Assessment Research of Flight Control System Based on MA

Yang Jian-zhong

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Abstract

Safety analysis is an important method of compliance demonstration for airworthiness regulation.The application of Markov analysis in system safety assessment is studied,and the common method of Markov analysis for system safety assessment is given.A failure state of flight control system is modeled and analyzed by Markov analysis and fault tree analysis respectively,and the results of the two methods are compared.It shows that Markov method has higher accuracy of quantitative analysis when the safety analysis of the sequence parallel system is analyzed.This method also overcomes the shortcomings of the static analysis features of the fault tree analysis.

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What this paper is about

Safety analysis is an important method of compliance demonstration for airworthiness regulation.The application of Markov analysis in system safety assessment is studied,and the common method of Markov analysis for system safety assessment is given.A failure state of flight control system is modeled and analyzed by Markov analysis and fault tree analysis respectively,and the results of the two methods are compared.It shows that Markov method has higher accuracy of quantitative analysis when the safety analysis of the sequence parallel system is analyzed.This method also overcomes the shortcomings of the static analysis features of the fault tree analysis.

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Available abstract

Safety analysis is an important method of compliance demonstration for airworthiness regulation.The application of Markov analysis in system safety assessment is studied,and the common method of Markov analysis for system safety assessment is given.A failure state of flight control system is modeled and analyzed by Markov analysis and fault tree analysis respectively,and the results of the two methods are compared.It shows that Markov method has higher accuracy of quantitative analysis when the safety analysis of the sequence parallel system is analyzed.This method also overcomes the shortcomings of the static analysis features of the fault tree analysis.

Key concepts: Fault tree analysis, Airworthiness, Markov chain, Reliability engineering, System safety, Markov model, Computer science, Markov process

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