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Aerospace
Volume 8
Issue 3
10.3390/aerospace8030089
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Article

Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing

by
Patrick Meyer
1,*,
Sebastian Lück
2,
Tobias Spuhler
2,
Christoph Bode
2,
Christian Hühne
3,
Jens Friedrichs
2 and
Michael Sinapius
1
1
Institute of Mechanics and Adaptronics, Technische Universität Braunschweig, Langer Kamp 6, 38106 Braunschweig, Germany
2
Institute of Jet Propulsion and Turbomachinery, Technische Universität Braunschweig, Hermann-Blenk-Straße 37, 38108 Braunschweig, Germany
3
Institute of Composite Structures and Adaptive Systems, German Aerospace Center, Lilienthalplatz 7, 38108 Braunschweig, Germany
*
Author to whom correspondence should be addressed.
Aerospace 2021, 8(3), 89; https://doi.org/10.3390/aerospace8030089
Submission received: 16 February 2021 / Revised: 15 March 2021 / Accepted: 16 March 2021 / Published: 20 March 2021
(This article belongs to the Special Issue Adaptive/Smart Structures and Multifunctional Materials in Aerospace)
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Abstract

High aspect ratio aircraft have a significantly reduced induced drag, but have only limited installation space for control surfaces near the wingtip. This paper describes a multidisciplinary design methodology for a morphing aileron that is based on pressure-actuated cellular structures (PACS). The focus of this work is on the transient dynamic system behavior of the multi-functional aileron. Decisive design aspects are the actuation speed, the resistance against external loads, and constraints preparing for a future wind tunnel test. The structural stiffness under varying aerodynamic loads is examined while using a reduced-order truss model and a high-fidelity finite element analysis. The simulations of the internal flow investigate the transient pressurization process that limits the dynamic actuator response. The authors present a reduced-order model based on the Pseudo Bond Graph methodology enabling time-efficient flow simulation and compare the results to computational fluid dynamic simulations. The findings of this work demonstrate high structural resistance against external forces and the feasibility of high actuation speeds over the entire operating envelope. Future research will incorporate the fluid–structure interaction and the assessment of load alleviation capability.
Keywords: pressure-actuated cellular structure; morphing aileron; shape variability; transient internal flow; computational fluid dynamics; pseudo bond graph methodology; reduced-order model pressure-actuated cellular structure; morphing aileron; shape variability; transient internal flow; computational fluid dynamics; pseudo bond graph methodology; reduced-order model

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MDPI and ACS Style

Meyer, P.; Lück, S.; Spuhler, T.; Bode, C.; Hühne, C.; Friedrichs, J.; Sinapius, M. Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing. Aerospace 2021, 8, 89. https://doi.org/10.3390/aerospace8030089

AMA Style

Meyer P, Lück S, Spuhler T, Bode C, Hühne C, Friedrichs J, Sinapius M. Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing. Aerospace. 2021; 8(3):89. https://doi.org/10.3390/aerospace8030089

Chicago/Turabian Style

Meyer, Patrick, Sebastian Lück, Tobias Spuhler, Christoph Bode, Christian Hühne, Jens Friedrichs, and Michael Sinapius. 2021. "Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing" Aerospace 8, no. 3: 89. https://doi.org/10.3390/aerospace8030089

APA Style

Meyer, P., Lück, S., Spuhler, T., Bode, C., Hühne, C., Friedrichs, J., & Sinapius, M. (2021). Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing. Aerospace, 8(3), 89. https://doi.org/10.3390/aerospace8030089

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