ABSTRACT
Most real technical systems are very complex and it is difficult to analyze their reliability. Large numbers of components and subsystems and their operating complexity cause that the evaluation and optimization of their reliability is complicated. The complexity of the systems’ operation processes and their influence on changing in time the systems’ structures and their components’ reliability characteristics is often very difficult to fix and to analyze. Usually the system environment and infrastructure have either an explicit or an implicit strong influence on the system operation process. As a rule some of the initiating environment events and infrastructure conditions define a set of different operation states of the technical system. A convenient tool for solving this problem is a semimarkov modeling of the system operation processes linked with a multi-state approach for the system reliability analysis and a linear programming for the system reliability optimization.
