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Proceedings Paper

Contact-aided compliant mechanisms for morphing aircraft skin
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Paper Abstract

Sandwich structures consisting of contact-aided compliant mechanisms are presented for morphing aircraft skin. A contact mechanism is used to alleviate stresses and to decrease the out-of-plane deflection. A methodology to design such mechanisms, which takes into account the aerodynamic loads, is presented. The method is applied to a small UAV and results are compared with those of honeycomb structures in terms of structural mass, global strain and maximum stresses. Different material models such as linearly elastic and multi-linear elastic are considered. For linearly elastic materials, contact-induced stress-relief is advantageous and for nonlinear elastic materials, reduction of transverse deflection due to contact is useful. In either case, the structural mass of the contact-aided structures is less than that of the corresponding non-contact structures.

Paper Details

Date Published: 3 April 2008
PDF: 12 pages
Proc. SPIE 6926, Modeling, Signal Processing, and Control for Smart Structures 2008, 69260C (3 April 2008); doi: 10.1117/12.773599
Show Author Affiliations
Vipul Mehta, The Pennsylvania State Univ. (United States)
Mary Frecker, The Pennsylvania State Univ. (United States)
George Lesieutre, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 6926:
Modeling, Signal Processing, and Control for Smart Structures 2008
Douglas K. Lindner, Editor(s)

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