Multi-State Systems with Independent Local and Propagated Failures and Competing Failure Propagation and Isolation Effects
The failure state of a multi-state component in a multi-state system (MSS) can be classified into local failure or propagated failure. MSS can be subject to functional dependence among components where the failure of a trigger component causes other components (referred to as dependent components) to become inaccessible or isolated from the system. With the presence of functional dependence, the propagation of a failure originated from a dependent component can be prevented, thus will not affect the rest of the system if the trigger component fails before the propagated failure of the dependent component. However, such failure isolation effect does not always exist; when the propagated failure originated from the dependent component occurs before the failure of the trigger component, the isolation effect does not prevent the failure propagation, causing failure of the entire system. In summary, a propagated failure in MSS with functional dependence can have different consequences due to the competition with the failure of the trigger component in the time domain. Such competing effects must be addressed for the accurate reliability analysis of MSS. In this paper, a combinatorial and analytical method is proposed for the reliability analysis of MSS subject to competing failure isolation and propagation effect. Local and propagated failures of the same component are assumed to be independent for the analysis. An example is provided to illustrate the application of the proposed method.
Competing processes Failure isolation Failure propagation Functional dependence Multi-state system
LIUDONG XING GREGORY LEVITIN CHAONAN WANG
Department of Electrical and Computer Engineering, University of Massachusetts, Dartmouth, MA 02747, Reliability & Equipment Department, R & D Division, The Israel Electric Corporation, Haifa, 31000, I
国际会议
北京
英文
607-613
2011-06-20（万方平台首次上网日期，不代表论文的发表时间）