Mechanics & Industry
Volume 23, 2022
|Number of page(s)||12|
|Published online||21 January 2022|
Aeroelastic scaling of flying demonstrators: mode tracking technique
Institut Clément Ader, Université de Toulouse, ISAE-SUPAERO-CNRS-INSA-Mines Albi-UPS,
2 ONERA/DTIS, Université de Toulouse, Toulouse, France
* e-mail: firstname.lastname@example.org
Accepted: 11 December 2021
Aeroelastic scaling theory shows that the design problem of aeroelastically equivalent scaled aircraft can be treated as a structural-only design problem if the aerodynamic shape and airflow properties of the full scale aircraft are preserved. In that case, the theory shows that it is sufficient to match the scaled natural mode shapes, frequencies and mass of the reference aircraft. In this paper, we present a new method for the dynamic scaling of flexible structures where the objective function is based on the modal assurance criterion (MAC). This criterion is used for a mode tracking strategy during the optimization process. Finally, we apply this method to a scaled version (1:5) of the uCRM wing, achieving an agreement greater than 99% on the average MAC value of the first 5 modes.
Key words: Aeroelastic scaling / modal matching / modal assurance criterion / optimization
© J. Mas Colomer et al., Published by EDP Sciences 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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