Investigation Multi-State System Reliability by Structure Function

Multi-State System is a mathematical model that is used in reliability analysis to present a system with some level of working efficiency. A structure function allows to describe behavior of system reliability depending on the efficiency of its components unambiguously. There are a lot of estimates of a Multi-State System on the basic of structure function. Dynamic Reliability Indices belong to these estimates and characterize the changes of Multi-State System reliability caused by changes in components efficiency. These indices are computed based on structure function and Logical Differential Calculus. The method of Dynamic Reliability Indices calculation is considered in this paper and is compared with another methods to evaluate Multi-State System reliability. Path (cut) method, method of Dynamic Reliability Indices calculation and method based on the Lower (Upper) Boundary Points are examined in particular.