Abstract
Modelling, prediction and optimization of the operation and reliability of technical systems related to their operation processes are presented. The emphasis is on multi-state systems composed of ageing components and on changing their reliability structures and their components reliability parameters during their operation processes that are called the complex systems. The integrated general model of complex systems’ reliability, linking their reliability models and their operation processes models and considering variables at different operation states, their reliability structures and their components’ reliability parameters is constructed. This system reliability general model, together with the linear programming, is proposed for the optimization of the operation and reliability of complex technical systems. Those theoretical tools are applied to modelling, prediction and optimization of the operation processes and reliability characteristics of the multi-state non-homogeneous system composed of a series–parallel and a series–‘m out of l’ subsystems linked in series, the multi-state homogenous ‘m out of l’–series system and the port grain transportation system composed of three multi-state non-homogeneous series–parallel subsystems linked in series changing their reliability structures and their components’ reliability parameters at variable operation conditions.
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