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Transition From Preliminary to Detailed Design of a Highly Elastic Solar Electric Aircraft

Voß, Arne and Koch, Christopher and Niemann, Steffen and Mantei, Marius and Handojo, Vega and Weiser, Christian (2022) Transition From Preliminary to Detailed Design of a Highly Elastic Solar Electric Aircraft. In: 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022. IFASD 2022, 2022-06-13 - 2022-06-17, Madrid, Spain. ISBN 978-840942353-8.

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This work presents the evolution of the aeroelastic modeling of a solar electric aircraft. The dimensions (wing span of ≈27.0 m) and the extreme light-weight construction (wing loading ≈4.0 kg/m²) results in a highly flexible aircraft, making aeroelastic analyses mandatory in all stages of the aircraft design. Comparing the preliminary with the detailed design phase, the aeroelastic models are significantly improved in their level of detail. Still, the models show similar structural dynamic characteristics and a comparable loading, e.g. in terms of wing bending and torsional moments and , where the highest loads are caused by similar load cases. For the sizing, the analytic approach from the preliminary design is backed-up with numerical analyses using a detailed FE model. A comprehensive flutter analysis confirms the findings obtained from a flutter check during the preliminary design. Finally, first structural tests are prepared to validate the models.

Item URL in elib:https://elib.dlr.de/186492/
Document Type:Conference or Workshop Item (Speech)
Title:Transition From Preliminary to Detailed Design of a Highly Elastic Solar Electric Aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Voß, ArneUNSPECIFIEDhttps://orcid.org/0000-0003-2266-7853143956412
Koch, ChristopherUNSPECIFIEDhttps://orcid.org/0000-0001-8014-3041UNSPECIFIED
Niemann, SteffenUNSPECIFIEDhttps://orcid.org/0000-0001-9272-0635UNSPECIFIED
Handojo, VegaUNSPECIFIEDhttps://orcid.org/0000-0001-6030-2383UNSPECIFIED
Weiser, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-2968-6961UNSPECIFIED
Journal or Publication Title:19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:High altitude platform, HALE, loads analysis, aeroelasticity, structural dynamics, structural sizing, flutter, preliminary design, detailed design
Event Title:IFASD 2022
Event Location:Madrid, Spain
Event Type:international Conference
Event Start Date:13 June 2022
Event End Date:17 June 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Unmanned Aerial Systems
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Voß, Arne
Deposited On:13 Jun 2022 09:56
Last Modified:24 Apr 2024 20:47

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