Schmeink, Jens und Becker, Richard-Gregor (2018) Application of Kriging Metamodels to the Automated Start Value Generation for Gas Turbine Perfromance Simulations. In: Proceedings of the ASME Turbo Expo. ASME Turbo Expo 2018, 2018-06-11 - 2018-06-15, Olso, Norwegen.
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Kurzfassung
This paper presents a process for automated start value generation for gas turbine performance simulations using Kriging metamodels. The metamodels are trained on a small number of pre-selected operating points in the flight envelope. Predictions of the trained metamodels are used as initialization parameters for subsequent performance simulations of arbitrary operating points in order to increase robustness and computational speed of the numerical process. Different approaches for the selection of the training points are evaluated. A comparison to the classical approach of tablebased initialization is carried out to highlight the advantages and disadvantages of the new methodology. Furthermore, the inclusion of supplementary operating points into the training sample of the metamodels is analyzed. Depending on certain criteria, such as the difference of prediction and simulation result, operating points are included into the sample and a retraining of the metamodels is performed. Simulations using the retrained models as guess value generators are compared to the previous Kriging approach. The advantages and disadvantages of the retraining approach are discussed.
elib-URL des Eintrags: | https://elib.dlr.de/120474/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | Application of Kriging Metamodels to the Automated Start Value Generation for Gas Turbine Perfromance Simulations | ||||||||||||
Autoren: |
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Datum: | Juni 2018 | ||||||||||||
Erschienen in: | Proceedings of the ASME Turbo Expo | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Performance Simulation, Triebwerk, Engine, Kriging, Initialisierung | ||||||||||||
Veranstaltungstitel: | ASME Turbo Expo 2018 | ||||||||||||
Veranstaltungsort: | Olso, Norwegen | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 11 Juni 2018 | ||||||||||||
Veranstaltungsende: | 15 Juni 2018 | ||||||||||||
Veranstalter : | ASME IGTI | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Antriebssysteme | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L ER - Engine Research | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt) | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Antriebstechnik > Triebwerk | ||||||||||||
Hinterlegt von: | Schmeink, Jens | ||||||||||||
Hinterlegt am: | 09 Jul 2018 10:30 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:24 |
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