Schmeink, Jens and 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, 11.-15. Juni 2018, Olso, Norwegen.
Full text not available from this repository.
Abstract
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.
Item URL in elib: | https://elib.dlr.de/120474/ | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | |||||||||
Title: | Application of Kriging Metamodels to the Automated Start Value Generation for Gas Turbine Perfromance Simulations | |||||||||
Authors: |
| |||||||||
Date: | June 2018 | |||||||||
Journal or Publication Title: | Proceedings of the ASME Turbo Expo | |||||||||
Refereed publication: | Yes | |||||||||
Open Access: | No | |||||||||
Gold Open Access: | No | |||||||||
In SCOPUS: | Yes | |||||||||
In ISI Web of Science: | No | |||||||||
Status: | Published | |||||||||
Keywords: | Performance Simulation, Triebwerk, Engine, Kriging, Initialisierung | |||||||||
Event Title: | ASME Turbo Expo 2018 | |||||||||
Event Location: | Olso, Norwegen | |||||||||
Event Type: | international Conference | |||||||||
Event Dates: | 11.-15. Juni 2018 | |||||||||
Organizer: | ASME IGTI | |||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||
HGF - Program: | Aeronautics | |||||||||
HGF - Program Themes: | propulsion systems | |||||||||
DLR - Research area: | Aeronautics | |||||||||
DLR - Program: | L ER - Engine Research | |||||||||
DLR - Research theme (Project): | L - Virtual Engine and Validation methods (old) | |||||||||
Location: | Köln-Porz | |||||||||
Institutes and Institutions: | Institute of Propulsion Technology > Engine | |||||||||
Deposited By: | Schmeink, Jens | |||||||||
Deposited On: | 09 Jul 2018 10:30 | |||||||||
Last Modified: | 09 Jul 2018 10:30 |
Repository Staff Only: item control page