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Voß, Arne and Klimmek, Thomas (2022) Aeroelastic Modeling, Loads Analysis and Structural Design of a Fighter Aircraft. ICAS Congress, 4.-9. September 2022, Stockholm, Schweden.
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Abstract
The DLR Future Fighter Demonstrator (FFD) is a highly agile, two-seated aircraft with twin-engines with reheat and a design flight speed extending into the supersonic regime up to Ma=2.0. Based on a given conceptual design, this work focuses on the aeroelastic modeling, including structures, masses and aerodynamics. With these models, a comprehensive loads analysis with 688 maneuver load cases, covering the whole flight envelope, is performed. Based on the resulting section and nodal loads, the structural model is subject to a structural optimization resulting in a preliminary, total primary structural mass of ~3.3t. To confirm the results, the aerodynamic panel methods (VLM and ZONA51) are compared to higher fidelity results obtained from CFD, showing a moderate agreement in terms of surface pressure distribution.
| Item URL in elib: | https://elib.dlr.de/188328/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | Aeroelastic Modeling, Loads Analysis and Structural Design of a Fighter Aircraft | |||||||||
| Authors: |
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| Date: | 4 September 2022 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Status: | Published | |||||||||
| Keywords: | Aeroelasticity, maneuver loads, military aircraft, structural optimization, supersonic panel methods | |||||||||
| Event Title: | ICAS Congress | |||||||||
| Event Location: | Stockholm, Schweden | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 4.-9. September 2022 | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Aeronautics | |||||||||
| HGF - Program Themes: | Efficient Vehicle | |||||||||
| DLR - Research area: | Aeronautics | |||||||||
| DLR - Program: | L EV - Efficient Vehicle | |||||||||
| DLR - Research theme (Project): | L - Virtual Aircraft and Validation | |||||||||
| Location: | Göttingen | |||||||||
| Institutes and Institutions: | Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design | |||||||||
| Deposited By: | Voß, Arne | |||||||||
| Deposited On: | 25 Nov 2022 13:08 | |||||||||
| Last Modified: | 25 Nov 2022 13:08 |
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