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TU-Flex: A Very-Flexible Flying Demonstrator with a Generic Transport Aircraft Configuration

Gonzáles, Pedro J. and Starvorinus, Gerrit and Silvestre, Flavio J. and Voß, Arne and Meddaikar, Muhammad Yasser and Krüger, Wolf R. (2023) TU-Flex: A Very-Flexible Flying Demonstrator with a Generic Transport Aircraft Configuration. American Institute of Aeronautics and Astronautics. AIAA SCITECH 2023 Forum, 23.-27. Jan. 2023, National Harbor, Maryland. doi: 10.2514/6.2023-0106.

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Official URL: https://arc.aiaa.org/doi/10.2514/6.2023-0106


In the continuous search to increase efficiency in fuel consumption and reduce environmental impact, the aeronautical industry is getting more interested in enabling and developing higher aspect ratio wings. However, the increase in flexibility tends to deteriorate flying qualities making it necessary to implement more complex controllers and to develop more complex numerical models to capture the real flight dynamics of the aircraft. Nevertheless, there are not enough demonstrators to provide validation data for such models. For these reasons, the Chair of Flight Mechanics, Flight Control, and Aeroelasticity of the TU-Berlin in cooperation with the DLR's Institute of Aeroelasticity is working on the development of TU-Flex, a remotely piloted vehicle designed to gather coupled flight and structural dynamics data to validate flexible/very flexible aircraft models with a typical transport aircraft configuration. This paper shows that it is feasible to attain the levels of deformations required to study the dynamics of flexible and very flexible aircraft in a low-cost scaled demonstrator. The aircraft was designed using an in-house development process that includes the use of DLR's ModGen/NASTRAN for dimensioning the main structural components, and the DLR's software Loads Kernel for the load analysis of the free-flying aircraft. The current geometry of the TU-Flex allows performing experiments in an available wind tunnel facility, and in flight test experiments for a gradual validation process. This demonstrator is capable to attain all main design requirements and it is in a detailed design process and construction. Time-domain simulations are in development with an in-house code for the flight dynamics of very flexible aircraft.

Item URL in elib:https://elib.dlr.de/193802/
Document Type:Conference or Workshop Item (Speech)
Title:TU-Flex: A Very-Flexible Flying Demonstrator with a Generic Transport Aircraft Configuration
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Voß, ArneUNSPECIFIEDhttps://orcid.org/0000-0003-2266-7853143956419
Meddaikar, Muhammad YasserUNSPECIFIEDhttps://orcid.org/0000-0001-9580-7023UNSPECIFIED
Krüger, Wolf R.UNSPECIFIEDhttps://orcid.org/0000-0002-7949-1169UNSPECIFIED
Date:16 January 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:American Institute of Aeronautics and Astronautics
Keywords:flexible aircraft design, aeroelastic structures design, flying demonstrator, aeroelasticity
Event Title:AIAA SCITECH 2023 Forum
Event Location:National Harbor, Maryland
Event Type:international Conference
Event Dates:23.-27. Jan. 2023
Organizer:American Institute of Aeronautics and Astronautics
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:08 Feb 2023 23:04
Last Modified:09 Oct 2023 08:57

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