Results 11 to 20 of about 1,603 (194)

A Data-Driven Fault Tree for a Time Causality Analysis in an Aging System

open access: yesAlgorithms, 2022
This paper develops a data-driven fault tree methodology that addresses the problem of the fault prognosis of an aging system based on an interpretable time causality analysis model. The model merges the concepts of knowledge discovery in the dataset and
Kerelous Waghen, Mohamed-Salah Ouali
doaj   +1 more source

Fault Tree Construction Model Based on Association Analysis for Railway Overhead Contact System

open access: yesInternational Journal of Computational Intelligence Systems, 2020
The overhead contact system (OCS) is the power source of electrified railway, it is very important to evaluate the system status accurately to maintain its safe and stable operation.
Kaiyi Qian, Long Yu, Shibin Gao
doaj   +1 more source

RISK ANALYSIS TECHNIQUES OF OIL AND GAS PIPELINE

open access: yesRevista de Investigaciones Universidad del QuindĂ­o, 2022
The safety of pipelines that transport energy has become an important and controversial issue with the general public. The main hazard for safe transportation of substances is a pipeline failure taken as a loss of its tightness and release of the ...
Ibrahim A. Altuwair
doaj   +1 more source

Model-based Fault Tree Automatic Generation Method [PDF]

open access: yesJisuanji kexue, 2021
Model-based safety analysis methods can improve the modeling and analysis capabilities of current complex safety-critical systems.At present,fault tree is widely used in system safety analysis and reliability analysis.Fault tree analysis (FTA) is a top ...
ZHAN Wan-li, HU Jun, GU Qing-fan, RONG Hao, QI Jian, DONG Yan-hong
doaj   +1 more source

A top-down iteration algorithm for Monte Carlo method for probability estimation of a fault tree with circular logic

open access: yesNuclear Engineering and Technology, 2018
Calculating minimal cut sets is a typical quantification method used to evaluate the top event probability for a fault tree. If minimal cut sets cannot be calculated or if the accuracy of the quantification result is in doubt, the Monte Carlo method can ...
Sang Hoon Han
doaj   +1 more source

Reliability analysis of traction unit of electrical haulage shearer

open access: yesGong-kuang zidonghua, 2018
For the problem that traditional manual reliability analysis method for traction unit of electrical haulage shearer could not find hidden fault real-timely, a reliability analysis method of traction unit of electrical haulage shearer was proposed which ...
GE Hongbing
doaj   +1 more source

Continuum fault trees

open access: yesProceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 2022
The motivation for this paper is the observation that combinations of small deviations in continuous performance parameters can combine to cause failure of an entire system, even though no one of these deviations is sufficient of itself to cause any failure.
John Robert Taylor, Igor Kozine
openaire   +2 more sources

An Automated Fault Tree Generation Approach With Fault Configuration Based on Model Checking

open access: yesIEEE Access, 2018
Fault tree generation technology is a key issue for safety analysis of large complex systems. Traditional safety analysis methods usually describe the origin, propagation, or concrete behavior of the fault and do not portray the constraints between ...
Lisong Wang   +4 more
doaj   +1 more source

Safety Analysis for the Civil Aircraft Emergency Door Based on Latent Failure and Multi-failure Mode Coupling

open access: yesHangkong gongcheng jinzhan, 2021
The emergency door on the wing of a civil aircraft has particularity,and its fault is somewhat concealed,so it is particularly important to analyze its safety reasonably.The evaluation and selection principles of the latent failure of the emergency door ...
ZHU Zhengzheng   +3 more
doaj   +1 more source

Modelling earthquake rates and associated uncertainties in the Marmara Region, Turkey [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2021
Modelling the seismic potential of active faults and the associated epistemic uncertainty is a fundamental step of probabilistic seismic hazard assessment (PSHA).
T. Chartier   +7 more
doaj   +1 more source

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