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2 Safety and Reliability of Systems and Processes

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Safety analysis of complex multistate ageing system

Kołowrocki Krzysztof

Safety and Reliability of Systems and Processes

2023

Summer Safety and Reliability Seminar 2023

79--98

Recent developments of an innovative own earlier approach to safety analysis of a complex multistate ageing system impacted by its operation processes are presented. A safety function and other safety indicators are defined for a complex multistate ageing system changing its functional structure and consequently its safety structure and its components safety parameters during the operation and determined under the assumption that its components have piecewise exponential safety functions. Results are applied to examine safety of port and maritime transportation systems.

Safety analysis of car wheel system impacted by operation process

Dąbrowska Ewa

Safety and Reliability of Systems and Processes

2020

Summer Safety and Reliability Seminar 2020

61--75

A practically important approach is proposed for the safety analysis of multistate ageing systems that considers the influence of their operation processes on their safety. The system operation process semi-Markov model is introduced and its characteristics are determined. The system safety function is defined and determined for a multistate ageing complex system impacted by its operation process. As a special case, the safety of a series system is modelled using its components’ piecewise exponential safety functions and the results are applied to examine and characterize safety of an exemplary car wheel system.