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Flight Characteristics with Different Supercooled Large Droplet Ice Configurations

Deiler, Christoph (2021) Flight Characteristics with Different Supercooled Large Droplet Ice Configurations. The Aeronautical Journal. Cambridge University Press. doi: 10.1017/aer.2021.98. ISSN 0001-9240.

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Kurzfassung

An evaluation of the effects of different ice configurations on the flight characteristics of a fixed-wing aircraft is presented. Within a joint research project of German Aerospace Center (DLR) and Brazilian aircraft manufacturer Embraer simulation models of three supercooled large droplet (SLD) ice configurations were developed for one Phenom 300 prototype. A specific flight test campaign with artificial SLD ice shapes on the aircraft was conducted to gather the relevant flight data. The simulation models for the different ice configuration were obtained by system identification, and specific results for the SLD-ice simulation models are provided. The analysis of aircraft characteristics was based on the results of these high-quality simulation models: the icing-induced changes of the flight performance characteristics evaluated by the interpretation of several parameters like thrust-to-weight ratio and specific excess power. The typical flight performance degradation was found for all ice configurations with different magnitude. The change of aircraft eigenmodes was investigated in detail by analysing the system matrix of the linearised models at a specific trim points. In addition, the diverse effects found for different ice configurations (App. C and SLD) are discussed and the change of root locus is analysed. Furthermore, ice-induced changes of the handling qualities are evaluated using numerical criteria of flying qualities standard "MIL-STD-1797 A": no significant deterioration was found for the investigated ice configurations.

elib-URL des Eintrags:https://elib.dlr.de/145003/
Dokumentart:Zeitschriftenbeitrag
Titel:Flight Characteristics with Different Supercooled Large Droplet Ice Configurations
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Deiler, Christophchristoph.deiler (at) dlr.dehttps://orcid.org/0000-0002-7143-2631NICHT SPEZIFIZIERT
Datum:28 Oktober 2021
Erschienen in:The Aeronautical Journal
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1017/aer.2021.98
Verlag:Cambridge University Press
ISSN:0001-9240
Status:veröffentlicht
Stichwörter:Flight dynamics, system-identification, supercooled-large droplet icing, aircraft dynamic simulation model
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):L - keine Zuordnung
Standort: Braunschweig
Institute & Einrichtungen:Institut für Flugsystemtechnik > Flugdynamik und Simulation
Hinterlegt von: Deiler, Dr. Christoph
Hinterlegt am:06 Dez 2021 20:31
Letzte Änderung:24 Mai 2022 23:47

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