The paper is concerned with the identification, evaluation, prediction and optimization of reliability, availability and safety of technical systems related to their operation processes. The main emphasis is on multi-state systems composed of ageing components and changing during their operation their structures and their components reliability and safety characteristics. The convenient tools suggested for analyzing these complex technical systems are semi-markov modeling of the systems' operation processes and multistate approach to the systems' reliability modeling. The paper describes current theoretical results on the proposed approach to reliability and safety analysis of multi-state systems with ageing components in their operation processes and the possibility of their practical applications to the reliability, safety analysis and optimization of the complex technical port and maritime transportation systems.
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