Results 11 to 20 of about 4,488,567 (254)

Dynamic Reliability Assessment Method for a Pantograph System Based on a Multistate T-S Fault Tree, Dynamic Bayesian

open access: yesApplied Sciences, 2023
The operational reliability of rail vehicle pantograph systems is evaluated by transforming T-S multistate fault trees into dynamic Bayesian networks (DBNs), which take into account system multistability, long-lasting operation, dynamic failure, and ...
Yafeng Chen   +5 more
doaj   +1 more source

Application of the dynamic FMEA in the reliability analysis of DCS [PDF]

open access: yesE3S Web of Conferences, 2020
Digital distributed instrumentation and control system (DCS) is critical to the safety of nuclear power plants (NPPs). Static analysis methods developed from analog control system are not applicable to DCS due to its enhanced dynamic interactions and ...
Yankai Li, Xu Wang, Meng Lin
doaj   +1 more source

Fault estimation and fault-tolerant control for discrete-time dynamic systems [PDF]

open access: yes, 2015
In this paper, a novel discrete-time estimator is proposed, which is employed for simultaneous estimation of system states, and actuator/sensor faults in a discrete-time dynamic system.
Gao, Zhiwei
core   +1 more source

A PCA-LSTM-Based Method for Fault Diagnosis and Data Recovery of Dry-Type Transformer Temperature Monitoring Sensor

open access: yesApplied Sciences, 2022
The failure that occurs during the dry-type transformer temperature monitoring sensor working will result in wrong data output, which may cause the monitor and monitoring background to respond incorrectly.
Mingze Zheng   +3 more
doaj   +1 more source

Improvement of the Reliability Graph with General Gates to Analyze the Reliability of Dynamic Systems That Have Various Operation Modes

open access: yesNuclear Engineering and Technology, 2016
The safety of nuclear power plants is analyzed by a probabilistic risk assessment, and the fault tree analysis is the most widely used method for a risk assessment with the event tree analysis.
Seung Ki Shin   +2 more
doaj   +1 more source

A Hybrid Modular Approach for Dynamic Fault Tree Analysis

open access: yesIEEE Access, 2020
Over the years, several approaches have been developed for the quantitative analysis of dynamic fault trees (DFTs). These approaches have strong theoretical and mathematical foundations; however, they appear to suffer from the state-space explosion and ...
Sohag Kabir   +4 more
doaj   +1 more source

Modelling and Resolution of Dynamic Reliability Problems by the Coupling of Simulink and the Stochastic Hybrid Fault Tree Object Oriented (SHyFTOO) Library

open access: yesInformation, 2019
Dependability assessment is one of the most important activities for the analysis of complex systems. Classical analysis techniques of safety, risk, and dependability, like Fault Tree Analysis or Reliability Block Diagrams, are easy to implement, but ...
Ferdinando Chiacchio   +4 more
doaj   +1 more source

Research on redundant structure of cloud-based interlocking systems

open access: yes机车电传动, 2023
In order to ensure the operational safety of interlocking systems within cloud platforms, this paper presented a redundant structure for cloud-based interlocking systems based on virtual machine fault tolerance technology, through analyzing the redundant
HE Zhibin   +4 more
doaj  

Reliability Analysis of LTE-R Communication System Based on Dynamic Fault Tree [PDF]

open access: yesJisuanji gongcheng, 2020
LTE-R wireless communication system can provide data transmission support for railway communication network and realize the stable operation of the train,but at present there is little analysis done on its reliability and failure dynamic characteristics ...
HU Lili, XU Yan, TAO Huiqing
doaj   +1 more source

Floquet Codes without Parent Subsystem Codes

open access: yesPRX Quantum, 2023
We propose a new class of error-correcting dynamic codes in two and three dimensions that has no explicit connection to any parent subsystem code. The two-dimensional code, which we call the CSS (Calderbank-Shor-Steane) honeycomb code, is geometrically ...
Margarita Davydova   +2 more
doaj   +1 more source

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