| Title |
Evaluation of Structural Importance Based on Minimal Cut Set Theory |
| Authors |
김동진(Kim, Dong-Jin) ; 김형철(Kim, Hyung-Chul) ; 김진오(Kim, Jin-O) |
| Keywords |
Birnbaum ; Structural Importance ; Minimal Cut Set |
| Abstract |
A technical system generally comprise a number of subsystems and components that are interconnected in such a way that the system is able to perform a set of required function. Because of the complex system structure with serial, parallel and bridged connections, some certain subsystems or components are more critical than the others. The main concern of a reliability engineer is to identify potential failures and to prevent these failures from occurring. In order to prevent fatal failures, proper inspections and maintenance actions for each component are required Considering above objectives of reliability engineers and characteristics of a practical system, several practical method for evaluating system and component reliabilities have developed namely Birnbaum's and Fussell & Vesely's measures. However there are several critical weaknesses in traditional calculation process as the target system gets larger. In this paper, a new technique for calculating component's structural importance is proposed and compared to Birnbaum's with representative system examples (serial, parallel. k out of n, and bridge type). |