Abstract:
A system and method for anomaly detection is provided. The system (100) and method (200) include utilizing one or more processors, such as in a server, for receiving (108) operational and dynamics data (104) from sensors associated with devices (102), filtering the data, establ ishing a set of baseline dynamics data and eliminating data dependencies (110). The system and method further include generating an expected level of data variation (112), identifying an anomaly based on a deviation of the device data from the baseline data normalized by the expected level of data variation (114), optionally correlating an anomaly with potential causes, and providing an output indicating an anomaly (116).
Abstract:
Le procédé selon l'invention comprend : — une étape d'obtention (E10) d'une mesure du paramètre surveillé réalisée par un capteur et correspondant à un point de fonctionnement du moteur, ce point de fonctionnement étant défini par au moins un paramètre de régulation du moteur; — une étape d'estimation (E20) d'une valeur du paramètre surveillé pour ce point de fonctionnement, à partir d'une valeur régulée ou d'une valeur de consigne filtrée dudit au moins un paramètre de régulation du moteur définissant le point de fonctionnement; — une étape de comparaison (E40) d'une erreur entre la mesure du paramètre surveillé et son estimation par rapport à au moins un seuil déterminé à partir d'une incertitude sur cette erreur évaluée pour le point de fonctionnement; et — une étape d'émission (E60) d'une notification en cas de franchissement dudit au moins un seuil.
Abstract:
Die Erfindung betrifft eine Dampfturbinenanordnung sowie ein Verfahren zum Betreiben einer Dampfturbine (2), wobei über ein erstes Ventil (3) in einer ersten Dampfzuführung (5) und über ein zweites Ventil (4) in einer zweiten Dampfzuführung (6) Dampf der Dampfturbine zugeführt wird, wobei die Ventile asymmetrisch zueinander geregelt werden, so dass beim Auftreten von unzulässigen Schwingungen, gemessen mittels Beschleunigungsaufnehmer, ein Ventil zufährt und das andere auffährt mit dem Ziel, den gewünschten Gesamtmassenstrom einzustellen.
Abstract:
A method (1200) for collecting and processing vibration data from a turbine engine system (148) is disclosed. The method comprises: receiving (1202) engine data from the turbine engine while in service, where the engine data include vibration data measured by one or more sensors (136, 138) disposed on the turbine engine. The method further comprises receiving (1204) user input through a user interface (202, 204, 206, 208, 210, 902, 1002, 1102); processing (1206) the vibration data in response to the user input; and displaying (1208) the processed vibration data through the user interface, the processed data being displayed as a function of a time parameter.
Abstract:
The invention concerns a method whereby immobile sensors (C1 to C8) are used to measure periodically the vibrating motions of portions (2) of a body (3) rotating in front of them, such as blades, and determine their self-resonant frequencies by spectrum analysis. The invention is characterised in that the sensors are assembled into several arrays in different number and the determination consists in comparing the spectra of the different arrays by various operations selecting and rejecting rays. The method enables to substantially improve unambiguous detection of frequencies by extending the limits thereof.
Abstract:
The arrangement for monitoring rubbing between a rotary part and a stationary part in a rotating turbomachine comprises: at least one mechanical oscillations detector (11, 12, 13) for measuring mechanical oscillations at least one point of the turbomachine, at least one particles detector (21) for measuring debris passing in at least one section of a flow path of the turbomachine, and an electronic monitoring unit (50) electrically or electromagnetically connected to the oscillations detector and the particles detector (21), and arranged to acquire and process signals generated by the oscillations detector and the particles detector; the electronic monitoring unit (50) uses the oscillations measurement primarily for estimating presence of rubbing and the debris measurement primarily for estimating severity of rubbing.
Abstract:
A gas turbine engine includes a plurality of blades, a sensor configured to detect vibration on one or more of the plurality of blades, and a controller coupled to the sensor and configured to adjust a blade incidence upon an onset of vibration being detected by the sensor wherein the adjustment of the blade incidence reduces the vibration.
Abstract:
Die Erfindung betrifft ein Verfahren zur Regelung und/oder Steuerung der Stellgrößen (25) einer Gasturbine in einem Verbrennungssystem, unter Zuhilfenahme dreier erfindungsgemäßer Submodelle.