Results 141 to 150 of about 35,032 (199)

Fault tree analysis with fuzzy gates

Computers & Industrial Engineering, 1997
Abstract Fault tree analysis is an important tool analyzing system reliability. Fault trees consist of gates and events. Gates mean relationships between events. In fault tree analysis, AND, OR gates have been used as typical gates but it is often difficult to model the system structure with the two gates because in many cases we have not exact ...
HanSuk Pan, WonYoung Yun
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Fuzzy importance in fault tree analysis

Fuzzy Sets and Systems, 1984
In fault tree analysis, system success or failure can be described by the state of the top event, which is usually defined by a so-called structure function. In this paper, we attempt to simplify the calculation process of the structure function and to newly define the state of the top event by the membership function, using fuzzy sets theory ...
Furuta, Hitoshi, Shiraishi, Naruhito
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Fault Tree Analysis Based on Fuzzy Logic

2007 Annual Reliability and Maintainability Symposium, 2007
Accurate assessment of system reliability with limited or insufficient statistical data is difficult. This paper presents a method which overcomes the drawbacks of traditional fault tree analysis (FTA) by using FTA based on possibilistic measures and fuzzy logic.
Li-ping He, Hong-zhong Huang, Ming J. Zuo   +2 more
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Fuzzy fault tree analysis

Proceedings of 1994 IEEE 3rd International Fuzzy Systems Conference, 2002
Reliability of products is frequently a prime safety consideration. Interpretation of reliability is both quantitative and qualitative. Extensive quantitative analysis employing probablistic risk assessment has been widely performed to provide predicted hazard or accident minimization.
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Fuzzy fault-tree analysis using failure possibility

Microelectronics Reliability, 1993
Abstract In conventional probability-based fault-tree analysis, the vague property in many systems, especially, the man-machine system is often ignored. To overcome this disadvantage, the fuzzy set theory is applied to fault-tree analysis. The failure possibility defined by a triangular fuzzy number on the interval [0,1] is used to characterize the ...
Gin-Shuh Liang, Mao-Jiun J. Wang
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Fuzzy fault tree analysis: revisited

International Journal of System Assurance Engineering and Management, 2011
Fault tree analysis is one of the most effective techniques for estimating the frequency of occurrence of hazardous events in probabilistic risk assessment study. The analyst needs to study a multi component system and identifies vulnerable sections of hazardous plant based on formalized procedure. In this sequel, we have made an attempt to demonstrate
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Fuzzy fault tree analysis of mask stage

2012 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, 2012
Fault tree analysis (FTA) is a top-down approach for failure analysis, starting with a potential undesirable event called a TOP event, and then determining all the ways it can happen. FTA is the most commonly used technique for causal analysis in risk and reliability studies. Mask stage an important part of lithography. In this paper, Fault Tree of the
Jidong Zeng, Dan Ling, Yu Liu, Song Wang, Chuanhao Wu   +4 more
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Fault tree analysis of fuzzy mechanical systems

Microelectronics Reliability, 1994
Abstract The fault tree techniques involve the decomposition of a system into a logic diagram or fault tree in which certain primary events lead to a specified top event that signifies the total failure of the system. The fault trees can be used to find the minimal cut sets which, when coupled with the failure rates of the primary events, lead to an ...
James P. Sawyer, S.S. Rao
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Fuzzy fault tree analysis on G1000 system

2014 International Conference on Information Science, Electronics and Electrical Engineering, 2014
G1000 integrated avionics system integrates many electronic components including navigation, communication, course, attitude and display etc, has been widely used in all kinds of civil aviation aircraft. In this paper, the fussy-sets theory is introduced briefly at first.
Wei Lu, Lin Wei
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Fuzzy Fault Tree Analysis : Case Studies

1995
Estimation of the fuzzy probability of occurrence of an hazardous event (such as: accidental release of chemicals) taking recourse to Fuzzy Sets Theory (FST) is the topic of immediate relevance in Probabilistics Risk Assessment for Chemical Industry.
A. W. Deshpande, P. Khanna
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