The realisation of morphing requires an efficient internal structure capable of significant shape adaptations, implying vastly anisotropic stiffness properties. In this context, introducing variable stiffness elements into distributed compliance systems shows great promise. Specifically, bi-stable laminates demonstrate stiffness variability characteristics arising from the markedly different properties of each equilibrium configuration. This paper presents a novel concept of a morphing wing section based on a distributed arrangement of embeddable variable stiffness bi-stable composites. The final configuration emerges from parameter studies into positioning distinct optimised bi-stable elements within a NACA 0012 profile. The structural response of the aerofoil is assessed numerically, with a particular focus on the global stiffness modification potential as well as exploring the snap-through behaviour of the component laminates. Final specimen manufacturing and testing validates the numerical strategy developed, confirming the feasibility of the innovative morphing approach based on variable stiffness bi-stable elements integrated into a selectively compliant system.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4614-8
PROCEEDINGS PAPER
Static Design of a Selective Compliance Morphing Wing Profile Based on Integrated Variable Stiffness Bi-Stable Components Available to Purchase
Izabela K. Kuder,
Izabela K. Kuder
ETH Zurich, Zurich, Switzerland
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Andres F. Arrieta,
Andres F. Arrieta
ETH Zurich, Zurich, Switzerland
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Mathias Rist,
Mathias Rist
ETH Zurich, Zurich, Switzerland
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Paolo Ermanni
Paolo Ermanni
ETH Zurich, Zurich, Switzerland
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Izabela K. Kuder
ETH Zurich, Zurich, Switzerland
Andres F. Arrieta
ETH Zurich, Zurich, Switzerland
Mathias Rist
ETH Zurich, Zurich, Switzerland
Paolo Ermanni
ETH Zurich, Zurich, Switzerland
Paper No:
SMASIS2014-7493, V001T03A015; 10 pages
Published Online:
December 8, 2014
Citation
Kuder, IK, Arrieta, AF, Rist, M, & Ermanni, P. "Static Design of a Selective Compliance Morphing Wing Profile Based on Integrated Variable Stiffness Bi-Stable Components." Proceedings of the ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation. Newport, Rhode Island, USA. September 8–10, 2014. V001T03A015. ASME. https://doi.org/10.1115/SMASIS2014-7493
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