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Fault detection and classification for flight control electromechanical actuators

Ismail, Mohamed A.A. und Balaban, Edward und Spangenberg, Holger (2016) Fault detection and classification for flight control electromechanical actuators. In: 2016 IEEE Aerospace Conference. IEEE Aerospace Conference, 2016-03-05 - 2016-03-12, Big Sky, MT, USA. doi: 10.1109/AERO.2016.7500784.

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Kurzfassung

Future aircraft architectures will incorporate more energy-efficient electromechanical actuators (EMA) for flight controls actuation. Development of reliable health monitoring techniques for EMAs promises to maintain or even increase the overall availability and safety of these new aircraft designs. When it comes to EMAs and similar mechanisms, certain fault types clearly manifest themselves through loss of functionality. Other faults, referred to as latent, do not immediately result in a significantly compromised actuator performance, thus making them challenging to detect. This paper presents a new vibration-based hybrid technique for detecting latent EMA faults without needing an initial stage of fault feature learning. The two faults considered in the study are a high-criticality jam and a low-criticality spall (metal flaking) in the actuator ballscrew mechanism. The actuator position is used to resample variable-speed vibration measurements of a single accelerometer into constant-rate measurements. A set of health characterization signatures is derived theoretically based on the EMA ballscrew kinematics. These theoretical signatures are compared with the signatures extracted from vibration signals measured experimentally on the EMA test articles. The vibration signatures approach is also compared to the diagnostic approach based on EMA motor current measurements. The ability to detect and classify latent faults early as high- or low-critical can improve maintenance planning and increase aircraft dispatch reliability. The technique has been validated on fault-injected data sets collected on the NASA Ames Research Center Flyable Electro-Mechanical Actuator (FLEA) test stand.

elib-URL des Eintrags:https://elib.dlr.de/103574/
Dokumentart:Konferenzbeitrag (Vorlesung)
Titel:Fault detection and classification for flight control electromechanical actuators
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ismail, Mohamed A.A.Mohamed.Ismail (at) dlr.dehttps://orcid.org/0000-0002-2077-0681NICHT SPEZIFIZIERT
Balaban, EdwardEdward.Balaban (at) nasa.govNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Spangenberg, HolgerHolger.Spangenberg (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:5 März 2016
Erschienen in:2016 IEEE Aerospace Conference
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
DOI:10.1109/AERO.2016.7500784
Status:veröffentlicht
Stichwörter:Vibration based diagnosis, Rolling contact fatigue, Ball-screw actuator, Angular resampling,
Veranstaltungstitel:IEEE Aerospace Conference
Veranstaltungsort:Big Sky, MT, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:5 März 2016
Veranstaltungsende:12 März 2016
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Systeme und Kabine (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Flugsystemtechnik > Sichere Systeme und Systems Engineering
Hinterlegt von: Ismail, Dr. Mohamed AA
Hinterlegt am:23 Mär 2016 15:55
Letzte Änderung:24 Apr 2024 20:09

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