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A methodology for analyzing the transient availability and survivability of a system with the standby components in two cases: The identical components and the non-identical components
, Article Journal of Applied Sciences ; Volume 8, Issue 22 , 2008 , Pages 4105-4112 ; 18125654 (ISSN) ; Ghassemi Tari, F ; Mohtashami, A ; Sadaghiani, J. S ; Sharif University of Technology
2008
Abstract
In this study, a method for transient analysis of availability and survivability of a system with the standby components is presented. The availability and survivability of the standby systems is evaluated in two cases, the standby systems with the identical components and the standby systems with the non-identical components. In this study the Markov models, eigen vectors and eigen values for analyzing the transient availability and survivability of the system are employed. The method is implemented through an algorithm which is tested in MATLAB (matrix laboratory) programming environment. The new method enjoys a stronger mathematical foundation and more flexibility for analyzing the...
A methodology for analyzing the transient reliability of systems with identical components and identical repairmen
, Article Scientia Iranica ; Volume 14, Issue 1 , 2007 , Pages 72-77 ; 10263098 (ISSN) ; Ghassemi Tari, F ; Sharif University of Technology
Sharif University of Technology
2007
Abstract
In this paper, the Markov models, eigenvectors and eigenvalue concepts are used to propose a methodology for analyzing the transient reliability of a system with identical components and identical repairmen. The components of the systems under consideration can have two distinct configurations, namely; they can be arranged in series or in parallel. A third case is also considered, in which the system is up (good) if k-out-of-n components are good. For all three cases, a procedure is proposed for calculating the transient probability of the system availability and the duration of the system to reach the steady state. © Sharif University of Technology, February 2007
A methodology for analyzing the transient availability and survivability of a system with every combination of components by using fault tree
, Article Journal of Applied Sciences ; Volume 9, Issue 6 , 2009 , Pages 1074-1081 ; 18125654 (ISSN) ; Ghassemi Tari, F ; Rahimi Mazrae Shahi, M ; Salehi Sadaghiani , J ; Mahtasshami, A ; Sharif University of Technology
2009
Abstract
The main purpose of this study is to offer a new method for transient analysis of availability and survivability of a system with the identical components and one repairman and with every combination of components either standard system for example series systems, parallel systems, stand-by systems and K out of N systems or complex system. This method is a technique for fault tree evaluation too. The considered system is supposed to consist of n components and there are some composition of them that systems the failure occurs when one of its composition occur. Some concepts such as fault tree, Markov models, Eigen vectors and Eigen values are employed for analyzing the transient availability...