Results 161 to 170 of about 35,032 (199)

A new method for fuzzy fault tree analysis

Microelectronics Reliability, 1989
It is well-known that the conventional fault tree analysis using probabilities has been found to be inadequate to handle the imprecision of input failure data and the uncertainties associated with the modelling particularly in relation to dependency of failures.
Misra, K. B., Weber, G. G.
openaire   +1 more source

Fuzzy Fault Tree Analysis of Railway Traffic Safety

Traffic and Transportation Studies (2000), 2000
The safety analysis of railway traffic system is presented in this paper. Fuzzy fault tree technique has been adopted in safety analysis. The main traffic accidents—top events of fault trees—have been analyzed down to the level of human errors and hardware failures. In the fuzzy fault-tree model, the possibility of failure, i.e.
Hong-Zhong Huang, Xu Yuan, Xin-Sheng Yao
openaire   +1 more source

Uncertainty in fault tree analysis: A fuzzy approach

Fuzzy Sets and Systems, 1996
Abstract In fault tree analysis, the uncertainties in the failure probability and/or failure rate of system components or basic events can be propagated to find the uncertainty in the overall system failure probability. The conventional approach is Monte-Carlo simulation by assuming a probability distribution for the failure probability. In addition,
P.V. Suresh, A.K. Babar, V.Venkat Raj
openaire   +1 more source

GIS product reliability analysis based fuzzy fault tree

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
The paper imports fuzzy fault tree into GIS product reliability analysis for the fist time. The paper discusses how GIS product reliability analysis uses fuzzy fault tree method, mainly researches two problems that is GIS product fuzzy fault tree construction and analysis step of GIS product fuzzy fault tree; uses example to adopt fuzzy fault tree ...
null Xianfeng Ye, null Youjian Hu, Shengwu Hu   +2 more
openaire   +1 more source

Fuzzy multi-state fault tree analysis based on fuzzy expert system

The Proceedings of 2011 9th International Conference on Reliability, Maintainability and Safety, 2011
With the development of large-scale, intelligent and complex systems, the conventional fault tree analysis method is incapable of analyzing the fault tree model of systems with vague data and multi-state. As a solution, this paper proposes a new approach of fuzzy multi-state fault tree analysis method based on a fuzzy expert system.
Yi Ren, Leixing Kong
openaire   +1 more source

Method of fuzzy fault tree analysis

2008
This paper presents the possibility of extension of the classical fault tree analysis FTA with the fuzzy fault tree analysis FFTA. The integration of the FFTA within the tree fault is presented as well as the example of the simulation of the fuzzy sets basic events with affiliated functions of affiliation.
Čala, Ivo, Štefanić, Nedeljko, Lisjak, Dragutin   +2 more
openaire   +1 more source

Application of Fuzzy Fault Tree Analysis in Aero-Engine

Applied Mechanics and Materials, 2014
In view of the situation that the traditional fault tree is difficult to determine the probability of the basic events without considering the inherent uncertainly and imprecision of each basic event, the concept of fuzzy set is introduced which transforms various kinds of fuzzy numbers into triangular fuzzy ones to describe the probability of bottom ...
Feng Ding, Jun Qiang Dang, Jiu Cheng Yin
openaire   +1 more source

FuzzyFTA: a fuzzy fault tree system for uncertainty analysis

Annals of Nuclear Energy, 1999
This paper describes a new approach and new computational system, FuzzyFTA, for reliability analysis using fault tree and fuzzy logic. Some measures are defined to determine critical components and the uncertainty contribution of each one to the system.
Antonio C.F. Guimarẽes, Nelson F.F. Ebecken   +1 more
openaire   +1 more source

Distribution System Failure Assessment Using Fuzzy Fault Tree Analysis

2020
Distribution system is the only connecting link of the power generation and load end. Any failure or malfunction at the end user have effective impact on the whole system. The health of distribution system is important for reliable operation of system. Random failure events and their records are not supportive for failure prediction.
Galiveeti Hemakumar Reddy, Sadhan Gope, More Raju, Sunil Kumar P, Arup Kumar Goswami, Nalin B. Dev Choudhury   +5 more
openaire   +1 more source

Systematic failure analysis using fault tree and fuzzy logic

Technology, Law and Insurance, 1997
Analysis of failure of structures is performed, e.g. to prevent similar cases in the future, clarify responsibilities, add to experience, contribute to design theory, etc. The possible advantages of using fault tree analysis as a tool for systematic failure analysis are discussed.
openaire   +1 more source