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Scaling of fault damage zones with displacement and the implications for fault growth processes
(AMER GEOPHYSICAL UNION, 2011)
Knowledge of the spatial extent of damage surrounding fault zones is important for understanding crustal fluid flow and also for understanding the physical processes and mechanics by which fault zones develop with slip. ...
A wavelet-based restricted earth-fault power transformer differential protection
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2022-01-20)
In order to enhance power transformer differential protection, especially with respect
to its reliability and speed, several schemes have been proposed in the last years. Faults
inside the transformer protection zone may ...
A fault detection and isolation system for cooperative manipulators
(Sociedade Brasileira de Automática, 2008)
The problem of fault detection and isolation (FDI) in cooperative manipulators is addressed in this paper. Four FDI procedures are developed to deal with free-swinging joint faults, locked joint faults, incorrectly measured ...
Time-frequency analysis combining wavelets and the envelope technique for fault identification in rotary machines
(2013-03-18)
Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for ...
Tectonics, magmatism and paleo-fluid distribution in a strike-slip setting: Insights from the northern termination of the Liquiñe–Ofqui fault System, Chile
(Elsevier, 2016)
This study addresses the interplay between strain/stress fields and paleo-fluid migration in the Southern Andean Volcanic Zone (SVZ). The SVZ coexists with the margin-parallel Liquine-Ofqui Fault System (LOFS) and with ...
An Illustration of some methods to detect faults in geared systems using a simple model of two meshed gears
(2017-04-25)
Gears are the components in many mechanical systems that are likely to develop faults due to their dynamic characteristics, such as the cyclic loading applied to the meshing teeth. The main faults in gears are pitting and ...
Detection and isolation of faults on the rotor side converter of doubly fed induction generatorsDiagnóstico de fallas en el convertidor del rotor en generadores de inducción con rotor bobinado
(Comite Espanol Automatica Cea, 2018-01)
This article presents a fault diagnosis strategy for open switch faults in the rotor side converter of doubly fed induction generators. The proposed strategy uses state observers based on dynamic models obtained from an ...
Reconfiguration blocks for fault-tolerant control of nonlinear systems
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICAPrograma de Pós-Graduação em Engenharia ElétricaUFMG, 2022-06-01)
Industrial processes and technological systems are becoming more and more autonomous and complex. Consequently, the demand for the safety and reliability of these systems is increasing. In this context, process monitoring ...