Results 61 to 70 of about 35,178 (215)

Fault Diagnosis Method Based on Principal Component Analysis and Broad Learning System

open access: yesIEEE Access, 2019
Traditional feature extraction methods are used to extract the features of signal to construct the fault feature matrix, which exists the complex structure, higher correlation, and redundancy.
Huimin Zhao   +3 more
doaj   +1 more source

An Orthogonal Wavelet Transform-Based K-Nearest Neighbor Algorithm to Detect Faults in Bearings

open access: yesShock and Vibration, 2022
We aim to address the issues of difficult acquisition of bearing fault data, few feature data sets, and low efficiency of intelligent diagnosis. In this paper, an orthogonal wavelet transform K-nearest neighbor (OWTKNN) diagnosis method has been proposed.
Weipeng Li, Yan Cao, Lijuan Li, Siyu Hou
doaj   +1 more source

A review on fault classification methodologies in power transmission systems: Part-II

open access: yesJournal of Electrical Systems and Information Technology, 2018
The countless extent of power systems and applications requires the improvement in suitable techniques for the fault classification in power transmission systems, to increase the efficiency of the systems and to avoid major damages. For this purpose, the
Avagaddi Prasad   +2 more
doaj   +1 more source

Research on Four-Quadrant Input Over-current Fault Diagnosis of Electric Locomotive Based on Recursive 2-Classification Method

open access: yes机车电传动, 2019
Four-quadrant over-current fault is one of the main faults of the HXD1 locomotive traction converter. Due to the class distribution of fault cause is unbalanced and there are a lot of over-current fault causes, four-quadromt over-current fault is ...
Jianhua WANG
doaj  

SEU fault classification by fault injection for an FPGA in the space instrument SOPHI [PDF]

open access: yes2017 NASA/ESA Conference on Adaptive Hardware and Systems (AHS), 2017
Fault injection through partial dynamic reconfiguration can simulate upsets in configuration memory of SRAM-based FPGAs. FT-UNSHADES 2 is an automated set-up, which runs multiple fault injection campaigns in batch mode, while automatically applying stimuli and comparing output vectors.
Holger Michel   +4 more
openaire   +2 more sources

Leveraging generative adversarial networks for data augmentation to improve fault detection in wind turbines with imbalanced data

open access: yesResults in Engineering
In the realm of modern power systems, wind turbines (WTs) have gained significant environmental advantages, making them pivotal in the expanding landscape of wind power generation.
Subhajit Chatterjee, Yung-Cheol Byun
doaj   +1 more source

The walls boundary fault zone and the MØre TrØndelag fault complex:: a case study of two reactivated fault zones. [PDF]

open access: yes, 2001
It is commonly observed that ancient faults or shear zones can become reactivated again and again, either within the same or even superimposed tectonic episodes, yet millions of years apart.
Watts, Lee Mark
core  

Phase-compensation-based dynamic time warping for fault diagnosis using the motor current signal [PDF]

open access: yes, 2012
Dynamic time warping (DTW) is a time-domain-based method and widely used in various similar recognition and data mining applications. This paper presents a phase-compensation-based DTW to process the motor current signals for detecting and quantifying ...
Gu, Fengshou   +11 more
core   +1 more source

Fault Classification of Reciprocating Compressor Based on Neural Networks and Support Vector Machines [PDF]

open access: yes
Reciprocating compressors play a major part in many industrial systems and faults occurring in them can degrade performance, consume additional energy, cause severe damage to the machine and possibly even system shut-down.
Gu, Fengshou   +4 more
core  

基于MIE和SVM算法的无级变速器故障诊断研究

open access: yesJixie chuandong, 2010
The fault inspection and diagnosis of vehicle transmission plays a important role of safety traffic and knocking the traffic accidents down.For the fault character of vehicle continuously variable transmission(CVT),the fault signal character extract ...
蒋强, 柳洪义, 郝建军, 唐毅锋
doaj  

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