T. Effing, R. Stephan, E. Stumpf

In the conceptual stage, a detailed wing mass estimation is crucial to map the influence of geometric wing changes or the integration of new technologies on the overall aircraft design. Before, the conceptual aircraft design environment MICADO used a known flight shape of the wing for aerodynamic analyses; the wing mass was estimated with semi-empirical methods without any aeroelastic coupling. This work presents results from advancements towards integrating existing methods from literature for a detailed wing mass estimation into MICADO, made in the last years. Besides a more detailed wing mass estimation, these methods enable, e.g., the consideration of the impact of the lift distribution on the wing mass by coupling aerodynamic and structural effects for different load cases. Since the applied methods for dimensioning the wing box require a jig shape, it is inversely calculated if only the flight shape is known beforehand. Hence, the process is independent of the given (jig or flight) shape of the wing. After presenting the new module, selected application studies demonstrate the new capabilities of MICADO. For the short-medium range aircraft used in the studies, the results indicate that creating flexible wing polars with lift-dependent flight shapes only slightly influences the final results of an overall aircraft design. Similarly, it is demonstrated that an aircraft with variable camber (VC) application exhibits-from an overall aircraft design perspective-minor differences in the flight shape and, thus, in the aerodynamic performance when flaps are deployed, compared to a rigid configuration. However, the impact on aerodynamics and structures is significant when designing aircraft with different target lift distributions. From these findings, application guidelines are derived for the aircraft range type used within this work. In future studies, these design guidelines can be assessed for different aircraft range types and eventually generalized.

Deutscher Luft- und Raumfahrtkongress 2023, Stuttgart

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2023

Conference Paper

englisch

21,0 x 29,7 cm, 7 Seiten

urn:nbn:de:101:1-2023120113040676697490

10.25967/610340

Conceptual aircraft design, wing mass estimation, short-medium range aircraft

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Effing, T.; Stephan, R.; Stumpf, E. (2023): Influence of a Detailed Mass Estimation for a Wing with known Flight Shape in Conceptual Overall Aircraft Design. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/610340. urn:nbn:de:101:1-2023120113040676697490.

01.12.2023