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Dynamic Gust Load Alleviation Study with Surrogate Models for Transonic Cruise Condition

Govindan, Kuharaaj (2023) Dynamic Gust Load Alleviation Study with Surrogate Models for Transonic Cruise Condition. 57th 3AF International Conference on Applied Aerodynamics (AERO 2023), 2023-03-29 - 2023-03-31, Bordeaux, France.

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Kurzfassung

This study aims to predict dynamic responses of trailing-edge and droop-nose devices in 2D for a transonic cruise condition using surrogate models. The prepared surrogates, also known as reduced order models, were prepared using the Linear Frequency Domain solver, and are proven to provide quick results for a wide range of flight conditions while being computationally efficient. Three reduced order models were prepared, one for predicting gust load responses for given gust cases, a second purely to predict trailing-edge deflection dynamics responses, and a third to prognose droop-nose device deflection dynamic response. Each surrogate was modelled with 100 dynamic response results based on their respective parameter combinations, prepared as a Halton Sequence of points. The prepared surrogates were evaluated for quality of interpolation via the Leave-One-Out Test, and applied for prognosing three flight cases. The superposition principle was applied to combine the dynamic responses from each surrogate to evaluate the load mitigation capability of the trailing-edge and droop nose devices for the studied flight cases. The surrogate predictions were accurate within -2 orders of magnitude relative to conventional unsteady flow simulations and the results of this gust load alleviation study with the reduced order models are comparable to other studies. This study proves the applicability of surrogate models prepared with the Linear Frequency Domain method, as a knowledge-based engineering approach, to perform aerodynamic studies, relevant to conceptual research as well as industrial needs.

elib-URL des Eintrags:https://elib.dlr.de/195036/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Dynamic Gust Load Alleviation Study with Surrogate Models for Transonic Cruise Condition
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Govindan, Kuharaajkuharaaj.govindan (at) dlr.dehttps://orcid.org/0000-0001-8940-4615NICHT SPEZIFIZIERT
Datum:2023
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 1-13
Status:veröffentlicht
Stichwörter:Linear frequency domain, LFD, Surrogate modelling, ROM, Computational fluid dynamics, CFD, Load alleviation, Load prediction, Gusts, Gust load alleviation, Trailing edge device, Flap, Control surface, Droop nose device, Hinterkantenklappe, Kippnase, Boe, Boenlastabminderung, Lastabminderung, Ersatzmodel, Steuerflaeche.
Veranstaltungstitel:57th 3AF International Conference on Applied Aerodynamics (AERO 2023)
Veranstaltungsort:Bordeaux, France
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:29 März 2023
Veranstaltungsende:31 März 2023
Veranstalter :3AF (Association Aeronautique et. Astronautique de France)
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Effizientes Luftfahrzeug
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L EV - Effizientes Luftfahrzeug
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugzeugtechnologien und Integration
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Hinterlegt von: Govindan, Kuharaaj
Hinterlegt am:17 Mai 2023 12:11
Letzte Änderung:24 Apr 2024 20:55

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