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Wyszukujesz frazę "fault slip analysis" wg kryterium: Wszystkie pola


Wyświetlanie 1-4 z 4
Tytuł:
Wind turbine generator slip ring damage detection through temperature data analysis
Autorzy:
Astolfi, Davide
Castellani, Francesco
Natili, Francesco
Powiązania:
https://bibliotekanauki.pl/articles/329616.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
wind energy
wind turbines
fault diagnosis
condition monitoring
principal components regression
energetyka wiatrowa
turbina wiatrowa
diagnostyka uszkodzeń
monitorowanie stanu
Opis:
The use of condition monitoring techniques in wind energy has been recently growing and the average unavailability time of an operating wind turbine in an industrial wind farm is estimated to be less than the 3%. The most powerful approach for gearbox condition monitoring is vibration analysis, but it should be noticed as well that the collected data are complex to analyse and interpret and that the measurement equipment is costly. For these reasons, several wind turbine subcomponents are monitored through temperature sensors. It is therefore valuable developing analysis techniques for this kind of data, with the aim of detecting incoming faults as early as possible. On these grounds, the present work is devoted to a test case study of wind turbine generator slip ring damage detection. A principal component regression is adopted, targeting the temperature collected at the slip ring. Using also the data collected at the nearby wind turbines in the farm, it is possible to identify the incoming fault approximately one day before it occurs.
Źródło:
Diagnostyka; 2019, 20, 3; 3-9
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pliocene to Quaternary stress field change in the western part of the Cen tral West ern Carpathians (Slovakia)
Autorzy:
Vojtko, R.
Hók, J.
Kováč, M.
Sliva, L’.
Joniak, P.
Šujan, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060207.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Western Carpathians
fault-slip data
Quaternary stress field
neotectonics
palaeostress analysis
Opis:
Knowledge of the current tectonic regime plays an essential role in natural hazard assessment, especially in the risk assessment of fault activity. Structural analysis of brittle deformations (using in version techniques) was used to determine the stress field state occurring within Pliocene and Quaternary deposits in the western part of the Central Western Carpathians. The deformation pattern of the reduced stress tensor showed that all structural measurements could be separated into two groups. An older, Late Pliocene fault population was activated un der NNW-SSE oriented extension. A younger, Quaternary fault population reflected origin in a NE–SW extensional tectonic regime and it distinctly showed a change the orientation of the S3 of about 70. The change in tectonic activity, as well as in the stress field orientation, is dated to the Pliocene-Pleis to cene boundary. The Quaternary stress field developed dur ing the post-collisional stage of the orogen. Our study shows that the West ern Carpathian internal units document NE-SW to NNE-SSW extension in the broader region around of the north ern Danube Basin.
Źródło:
Geological Quarterly; 2008, 52, 1; 19-19
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drobne uskoki przesuwcze oraz towarzyszące im struktury niższego rzędu - przykład z kamieniołomu w Lesznej Górnej, jednostka cieszyńska (Karpaty zewnętrzne)
Small-scale strike-slip faults and accompanying secondary structures - a case study from the quarry in Leszna Górna, Cieszyn Unit (Outer Carpathians)
Autorzy:
Koprianiuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074536.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
mezostruktura
analiza strukturalna
jednostka cieszyńska
polskie Karpaty zewnętrzne
uskoki przesuwcze
mesoscale structure
structural analysis
Cieszyn Unit
Polish Outer Carpathians
strike-slip fault
Opis:
The paper focuses on the analysis of small-scale strike-slip faults and second-order fractures in flat-lying Cieszyn Limestones of a quarry in Leszna Górna. In the western part of the Polish segment of the Outer Carpathians, the Silesian Nappe consists of two tectonic units: Cieszyn Unit and Godula Unit. The study area is located within the Cieszyn Unit. Several different kinds of tectonic structures have been distinguished, including mesoscale strike-slip faults, en echelon arrays, tip structures and linking structures. The investigations, including geometric and genetic analysis of strike-slip faults and fractures, have enabled reconstruction of structural evolution stages. Two evolutionary models are proposed in terms of the geometries of damage zones for small displacement strike-slip fault zones.
Źródło:
Przegląd Geologiczny; 2007, 55, 5; 395-404
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of fault pattern in the Silesian Nappe: Eastern Outer Carpathians, Poland
Autorzy:
Rubinkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059434.pdf
Data publikacji:
2000
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polish Eastern Outer Carpathians
flysch
structural geology
fault slip analysis
Opis:
The development of fault pattern in the Silesian Nappe (Central Carpathian Depression) in the eastern part of Polish Outer Carpathians is outlined, from field observations and interpretation of air photos and radar images. Fault slip analysis and palaeostress reconstruction was applied to determine different systems of strike-slip, reverse and normal faults and the relative age of each system was determined. The results show a consistent evolution of fault systems which occurred as several episodes. Some of these episodes are local but others represent a regional pattern of faulting across the whole Polish Eastern Outer Carpathians. The beginning of fault evolution took place in Late Oligocene to Late Miocene times. The oldest phase is represented by reverse and thrust faults of system R1 with SW-NE compression; a younger phase involves origination of strike-slip faults belonging to system S1 (with the same direction of compression). Reverse (system R2) and strike-slip (system S2) faults were formed locally during a N-S compressional event. Dextral strike-slip faults of system S3 with simultanous opening of a dextral set of fault system S1 originated subsequently. The youngest events are represented by normal faults N1, N2, and N3 systems during NW-SE, and SW-NE to N-S extension.
Źródło:
Geological Quarterly; 2000, 44, 4; 391-403
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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