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Schuff, Matthias and Chenaux, Virginie (2025) Coupled Mode Flutter Analysis of Turbomachinery Blades Using a Frequency Domain Coupling Scheme for the p-k Method. Deutscher Luft- und Raumfahrtkongress 2025, 2025-09-23 - 2025-09-25, Augsburg, Deutschland.
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Abstract
Aerodynamic coupling of mode shapes becomes a concern for turbomachinery blades with a low mass ratio of structure-to-air. Applying the p-k method allows to investigate the aeroelastic stability equation but comes with a high computational effort when aerodynamic forces have to be computed at various sampling points in advance. The work presents a new approach in an attempt to reduce the effort by coupling the frequency domain CFD solver with the eigenvalue solution.
| Item URL in elib: | https://elib.dlr.de/219106/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Coupled Mode Flutter Analysis of Turbomachinery Blades Using a Frequency Domain Coupling Scheme for the p-k Method | ||||||||||||
| Authors: |
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| Date: | 2025 | ||||||||||||
| Refereed publication: | No | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | turbomachinery, compressor, flutter, coupled mode, aerodynamic coupling, mass ratio, aerodynamic resonance | ||||||||||||
| Event Title: | Deutscher Luft- und Raumfahrtkongress 2025 | ||||||||||||
| Event Location: | Augsburg, Deutschland | ||||||||||||
| Event Type: | national Conference | ||||||||||||
| Event Start Date: | 23 September 2025 | ||||||||||||
| Event End Date: | 25 September 2025 | ||||||||||||
| Organizer: | Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V. | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | Clean Propulsion | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L CP - Clean Propulsion | ||||||||||||
| DLR - Research theme (Project): | L - Virtual Engine | ||||||||||||
| Location: | Augsburg , Göttingen | ||||||||||||
| Institutes and Institutions: | Institute of Test and Simulation for Gas Turbines > Virtual Engine and Numerical Methods Institute of Aeroelasticity > Aeroelastic Experiments | ||||||||||||
| Deposited By: | Schuff, Matthias | ||||||||||||
| Deposited On: | 19 Nov 2025 11:08 | ||||||||||||
| Last Modified: | 19 Nov 2025 11:08 |
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