Wing flexibility effects on the flight performance of an insect-like flapping-wing micro-air vehicle

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This study explores the effects of wing flexibility on several characteristics of flight, in this case the trim conditions, power requirements and dynamic stability of an insect-like flapping-wing micro-air vehicle (FWMAV) based on the hawkmoth Manduca sexta. The wing structure is analyzed by the finite-element method. A potential-based aerodynamic model which encompasses the unsteady panel method and the extended unsteady vortex-lattice method is employed to compute the aerodynamic forces. The motions of the FWMAV are obtained using a flexible multibody dynamics program coupled with the potential-based aerodynamic model. The results of this study show that the trim conditions of insect-like flexible and rigid FWMAVs may differ significantly from each other. When the flight speed is less than 3.0 m/s, using flexible wings is favorable, as they help the FWMAV reduce the power requirement and stabilize the lateral dynamics. However, at 3.0 m/s, these advantages are almost unnoticeable, while at 4.0 m/s, the flexible insect-like FWMAV requires even more mechanical power than its rigid counterpart. (C) 2018 Elsevier Masson SAS. All rights reserved.
Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
Issue Date
2018-08
Language
English
Article Type
Article
Keywords

FLUID-STRUCTURE INTERACTION; HOVERING MODEL INSECTS; HAWKMOTH MANDUCA-SEXTA; ORNITHOPTER FLIGHT; FLEXIBLE WINGS; EDGE VORTICES; SIMULATION; STABILITY; DYNAMICS; MECHANICS

Citation

AEROSPACE SCIENCE AND TECHNOLOGY, v.79, pp.468 - 481

ISSN
1270-9638
DOI
10.1016/j.ast.2018.06.007
URI
http://hdl.handle.net/10203/245578
Appears in Collection
AE-Journal Papers(저널논문)
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