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Application Research of Fault Tree Analysis in Grid Communication System Corrective Maintenance

Jian Wang, Zhenwei Yang, Mei Kang
2018 IOP Conference Series: Earth and Environment  
Meanwhile, it finds that the analysis method of fault tree has some guiding significance to the reliability researching and upgrading f the system.  ...  Recently, the diagnosis theories and methods based on fault tree have been applied in power system, such as fault diagnosis of boiler in power plant[2] fault research of large power transformer [3], reliability  ...  Conclusion In this paper, the practical application of fault tree analysis method in fault diagnosis of grid communication system is studied.  ... 
doi:10.1088/1755-1315/108/5/052099 fatcat:g7qg564t7ngzhldin7xatwtrry

Research on Product Elements' Safety-Critical Degree

Wu Qiong, Lyu Mingrui
2015 Journal of System Safety  
According to system safety practice, the safety of a system is a designed characteristic.  ...  Therefore, the role of safety in the lifecycle of the system is important to consider during the design phase.  ...  The effect of the failure mode i in fault tree j is C m (i) j and the criticality significance coefficient of i in fault tree j is I g (i) j .  ... 
doi:10.56094/jss.v51i1.171 fatcat:7ly3bmw2prglnduznqby5n72bq

A Study on Landslide Risk Management by Applying Fault Tree Logics

Danish Kazmi, Sadaf Qasim, I.S.H Harahap, Syed Baharom, Arjumend Masood, Muhammad Imran, H.L. Yuan, R.K. Agarwal, P. Tandon, E.X. Wang
2017 MATEC Web of Conferences  
In this regard, Fault Tree Analysis is utilized and for prediction of risk levels, consequences of the failures of the reference landslides have been taken.  ...  Slope stability is one of the focal areas of curiosity to geotechnical designers and also appears logical for the application of probabilistic approaches since the analysis lead to a "probability of failure  ...  Secondarily, to overcome or minimize the effects of slope failures consequences, this study has developed fault tree analysis of significant scenarios responsible for slope failures Table 1 .  ... 
doi:10.1051/matecconf/20179517009 fatcat:i6acgtajzbecvadcdteuvzieee

FAULT TREE ANALYSIS OF SOLAR CONCENTRATORS

Dobrivoje Catic, Milorad Bojic, Jasna Glisovic, Zorica Djordjevic, Nada Ratkovic
2013 International Journal for Quality Research  
In the introductory part, the history development is presented, and it points out the importance of using the Fault Tree Analysis - FTA method for analysis of the reliability and safety of technical systems  ...  Along with an explanation of certain parts of the fault tree, the estimation of the significance of certain events is done, and it is considered to be able to eliminate causes of failure or to minimize  ...  Introduction 1 The Fault Tree Analysis -FTA is one of the basic and the most used methods for analysis of the technical system's reliability and safety.  ... 
doaj:fc0f126375484c2cb3e08dde0d369ae3 fatcat:pmtgrj2nrvhmxpleouoojz3hjm

Developing a low-cost high-quality software tool for dynamic fault-tree analysis

J.B. Dugan, K.J. Sullivan, D. Coppit
2000 IEEE Transactions on Reliability  
The evaluation and evolution of such methods based on use in practice is critical to research progress, but few such methods see significant use.  ...  We have pursued such an approach in developing a fault tree modeling and analysis tool called Galileo. We describe our innovations in two dimensions.  ...  and refined effectively through significant use in practice.  ... 
doi:10.1109/24.855536 fatcat:b6he25474jakpbg67ik27q5oh4

Fault Analysis and Solution on Bucket Dropping Accident in Hoisting System

Chunhui Liu, Lin Xue
2014 Sensors & Transducers  
the fault tree analysis method.  ...  One theoretical analysis model was established in order to prevent the occurrence of overloaded bucket dropping accident.  ...  Comprehensive analysis on causes of the accident was given in this article combined with the fault tree structure.  ... 
doaj:3e1ce2c4059749f8ac0bd9a21ff63232 fatcat:znf6echdg5eejgvvks2aojouve

Wind Turbine Generator Controller Signals Supervised Machine Learning for Shaft Misalignment Fault Detection: A Doubly Fed Induction Generator Practical Case Study

Ahmed Al-Ajmi, Yingzhao Wang, Siniša Djurović
2021 Energies  
The average recognition accuracy rate of up to 98.8% is shown to be attainable through analysis of a key feature subset of the stator flux-oriented controller signals in a range of operating speeds and  ...  This could provide a highly noninvasive and low-cost solution for misalignment monitoring in comparison with the current misalignment monitoring field practice that relies on invasive and costly drivetrain  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/en14061601 fatcat:lcsylldfcjefjckrq5hmiqw2aa

Abstract PS1-44: Using Fault Tree Analysis and Probabilistic Risk Assessment to Improve Medication Safety in Ambulatory Care

T. S. Field, L. Garber, K. Chysna, B. Harrow, J. Tjia, J. H. Gurwitz
2008 Clinical Medicine & Research  
Abstract PS1-41 Background: In reviewing first quarter clinical quality metrics in 2006, the primary care department at the Merrill Center identified a statistically significant drop in glycemic control  ...  Conclusions: The potential for improving the internal demonstration of effective practices in integrated healthcare delivery systems is large.  ...  The aim of this study is to assess the feasibility of applying fault tree analysis and probabilistic risk assessment to the analysis of errors contributing to ADEs.  ... 
doi:10.3121/cmr.6.3-4.140-b fatcat:qnrryty5zvfgxggjx4pnixqwt4

Automated HAZOP revisited

J.R. Taylor
2017 Chemical engineering research & design  
Fault tree synthesis Hazard identification completeness HAZOP quality Formal languages Alarm analysis a b s t r a c t Hazard and operability analysis (HAZOP) has developed from a tentative approach to  ...  hazard identification for process plants in the early 1970s to an almost universally accepted approach today, and a central technique of safety engineering.  ...  Fussell (1973) described automated fault tree analysis by piecing together "mini fault trees", which provides a methodology for filling out the cause columns of a HAZOP table.  ... 
doi:10.1016/j.psep.2017.07.023 fatcat:sghsgxh5e5fsnpeiogqlonitry

Controlled experiments comparing fault-tree-based safety analysis techniques

Adrien Mouaffo, Davide Taibi, Kavyashree Jamboti
2014 Proceedings of the 18th International Conference on Evaluation and Assessment in Software Engineering - EASE '14  
This work was funded by the German Federal Ministry of Education and Research (BMBF) in the context of the projects ViERforES II (01|M10002D) and ARAMIS (01|511035W).  ...  We are thankful to Liliana Guzman from the University of Kaiserslautern, who provided a great help during the design of the study. Special thanks go to our research supervisor Prof. Dr. Dr. h.c.  ...  In this paper we only consider Fault Tree Analysis techniques. In Fault Tree Analysis, a system failure occurs as a result of the combination of different events.  ... 
doi:10.1145/2601248.2601255 dblp:conf/ease/TiadjioTJ14 fatcat:mk2vacydojhtvdq4ffknmscikm

Safety Level of Airside, Pre-Take-Off Objects and Processes

Dóra Meyer, Géza Tarnai
2015 Periodica Polytechnica Transportation Engineering  
such and similar thoughts is the aim of the paper.  ...  Received Abstract Preventive, proactive airside, pre-take-off safety in civil air traffic from a new viewpoint with a new toolset on a more exact way with sustaining all necessary principles -to explicate  ...  After the FTA, scenario analysis was made with the fault tree.  ... 
doi:10.3311/pptr.8282 fatcat:udqfobtzvvcvjccpxcfiz5psrm

The Failure-tree Analysis Based on Imprecise Probability and its Application on Tunnel Project

Lei Huang
2017 Chemical Engineering Transactions  
In this paper, a failure tree analysis method based on imprecise probability is established for the risk assessment of tunnel project, which making the results of risk assessment are more accurate and  ...  As a result, imprecision is involved in probability evaluations, which leading the results of risk assessment based on precise probability to the imprecise results.  ...  Fault tree analysis is one of the commonly used quantitative and qualitative methods in the risk analysis method.  ... 
doi:10.3303/cet1759078 doaj:7c72a133bd524c9d9a2790f75bb112ca fatcat:af25cfnlgrbbthsx3wzc7xj5le

A fault diagnosis method of engine rotor based on Random Forests

Qi Yao, Jian Wang, Lu Yang, Haixia Su, Guigang Zhang
2016 2016 IEEE International Conference on Prognostics and Health Management (ICPHM)  
The frequency spectrum of the vibration signal of a rotor system is an important basis for rotor fault diagnosis, using the spectrum of rotor to build decision tree analysis is an important method for  ...  Rotor is the main part of the engine, the vibration fault is very common in the process of running, it must be monitored, checked, excluded in a timely manner for improving the reliability of engine and  ...  Fault Tree Analysis and Expert System belongs to this type of method.  ... 
doi:10.1109/icphm.2016.7542838 dblp:conf/icphm/YaoWYSZ16 fatcat:go2bqztvsvbizgqj3bav24bazm

Air Compressor Fault Diagnosis Through Vibration Signals using Statistical Features and J48 Algorithms

S. Aravinth, K. Rajesh Kanna, V. Sugumaran
2016 Indian Journal of Science and Technology  
The J48 decision tree algorithm is used in predicting the compressor faults in early stages. Findings: High classification accuracy of 98.33% was obtained for fault detection in compressor system.  ...  Methods/Analysis: This article presents a condition monitoring strategy for compressor through vibration signals using accelerometer data in identifying five common faults of air compressor these were  ...  The features in the hierarchy of the decision tree represent the features in the order of their significance contributing to the classification accuracy.  ... 
doi:10.17485/ijst/2015/v8i1/107912 fatcat:ydzkymvc5rgtlmh5lvmbtv6x2y

Workflow fault tree generation through model checking [chapter]

Luke Herbert, Robin Sharp
2013 Safety, Reliability and Risk Analysis  
We present a framework for the automated generation of fault trees from models of real-world process workflows, expressed in a formalised subset of the popular Business Process Modelling and Notation (  ...  From these calculations, a comprehensive fault tree is generated.  ...  In practice, decision points in a workflow will have outcomes which depend on some inherent property of the task or on outside factors.  ... 
doi:10.1201/b15938-334 fatcat:wcogzylbavf3rhgqhs6gmlntsq
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