Results 251 to 260 of about 144,674 (291)

Dynamic Reliability Block Diagrams VS Dynamic Fault Trees

2007 Proceedings - Annual Reliability and Maintainability Sympsoium, 2007
Reliability block diagrams (RBD), and fault trees (FT) are the most widely used formalisms in system reliability modeling. They implement two different approaches: in a reliability block diagram, the system is represented by components connected according to their function or reliability relationships, while fault trees show which combinations of the ...
DISTEFANO, SALVATORE, PULIAFITO, Antonio
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Dynamic Fault Tree Models for FPGA Fault Tolerance and Reliability

2021 IEEE Computer Society Annual Symposium on VLSI (ISVLSI), 2021
Field Programmable Gate Arrays (FPGAs) are widely used in many safety-critical applications mainly due to their high computational efficiency and dynamic reconfiguration. Although dynamic reconfigurability is often leveraged upon to attain further flexibility and reliability, it comes with an area overhead.
Yassmeen Elderhalli, Nahla El-Araby, Osman Hasan, Axel Jantsch, Sofiene Tahar   +4 more
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On-Line Fault Diagnosis Using Dynamic Fault Tree

IFAC Proceedings Volumes, 2001
Abstract By incorporating SDG, FTA and fuzzy inference techniques, a novel framework for fault diagnosis is developed in this paper. To relieve the on-line computation load, the scope of diagnosis is limited to the fault origins leading to the top events of given fault trees. The corresponding fault propagation patterns are derived from SOG model and
Sheng Yung Chang, Cheng Ren Lin, Chuei-Tin Chang, Shuh Woei Yu   +3 more
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Dynamic analysis of coherent fault trees

Journal of Quality in Maintenance Engineering, 1998
An important characteristic of many engineering systems which cannot be modeled by fault trees to perform system reliability analysis is that they behave dynamically. In this paper, the method of applying Petri Nets (Pns) as a modeling tool to represent the coherent fault trees is discussed.
Wang Huanqiu, Gao Jinzhong, Xu Fengzhang
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Dynamic Fault Tolerance in Fat Trees

IEEE Transactions on Computers, 2011
Fat trees are a very common communication architecture in current large-scale parallel computers. The probability of failure in these systems increases with the number of components. We present a routing method for deterministically and adaptively routed fat trees, applicable to both distributed and source routing, that is able to handle several ...
F O Sem-Jacobsen, T Skeie, O Lysne, J Duato   +3 more
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Algebraic Modeling for Dynamic Gates in Dynamic Fault Trees

Applied Mechanics and Materials, 2012
This paper proposed a novel algebraic framework for modeling dynamic gates in dynamic fault trees (DFTs). The algebraic modeling of DFTs tries to avoid the ambiguities and inconsistencies of the natural languages-based original definitions. Aim to solve this issue, preliminarily a formal framework is defined, including the definitions, properties ...
Bo Wang, Yi Li, Wei Yan Xing, Dong Liu
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Dynamic Fault Tree Analysis: Simulation Approach

2010
Fault tree analysis (FTA) is extensively used for reliability and safety assessment of complex and critical engineering systems. One of the important limitations of conventional FTA is the inability for one to incorporate complex component interactions such as sequence dependent failures.
K. Durga Rao, V.V.S. Sanyasi Rao, A. K. Verma, A. Srividya   +3 more
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Diagnostic expert systems from dynamic fault trees

Annual Symposium Reliability and Maintainability, 2004 - RAMS, 2004
A methodology for developing a diagnostic map for systems that can be analyzed via a dynamic fault tree is proposed in this paper. This paper shows how to automatically design a diagnostic decision tree from a dynamic fault tree used for reliability analysis.
T. Assaf, J.B. Dugan
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Dynamic Fault Tree Based on Weibull Distribution

Advanced Materials Research, 2011
The fault tree analysis is a widely used method for evaluation of systems reliability and safety. Dynamic fault tree (DFT) extend traditional FT by defining additional gates called dynamic gates to model these complex interactions. Markov models are used in solving dynamic gates. However, state space becomes too large for calculation with Markov models
Wei Gang Guo, Wei Han, Shu Yan Liu
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Modular techniques for dynamic fault tree-analysis

Annual Reliability and Maintainability Symposium 1992 Proceedings, 2003
It is noted that current approaches used to assess the dependability of complex systems such as Space Station Freedom and the Air Traffic Control System are incapable of handling the size and complexity of these highly integrated designs. A novel technique for modeling such systems which is built upon current techniques in Markov theory and ...
F.A. Patterson-Hine, J.B. Dugan
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