Abstract
ABSTRACTAs the class notation of DP system increases, the states and components of interest rapidly becomes large leading to difficulty in constructing and solving the reliability model. The key point of this paper is innovatively using the Markov modeling method to quantitatively assess the reliability of Class 3 DP control system, although the Markov methodology is not new in reliability analysis. To simplify the Markov process, the target Class 3 DP control system is decomposed into main DP and back-up DP system and the whole system is modeled using Markov models of sub-systems. The failure rate of the whole system can be obtained from the Markov models of two independent subsystems. Finally, the reliability of the whole Class 3 DP control system can be predicted with subsystem failure rates. The results present can be used for reliability-centered design and maintenance of DP control system.
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