MODELING OF THE HAWKMOTH WING AND ITS IMPLEMENTATION IN A FOUR-BAR FLAPPING WING MECHANISM

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THESIS_Aytek_Altuga_Okmen.pdf

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2022-2

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Ökmen, Aytek Altuga

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The main aim of this study is to accurately model the wing of a hawkmoth (Manduca sexta) to implement it in a flapping wing mechanism for a micro aerial vehicle (MAV). The wing is first modeled in ANSYS/SpaceClaim then the model is verified by performing modal analysis on the finite element model (FEM) of the wing in ANSYS/Mechanical. Grid refinement study is performed on the FEM. Results of the modal analysis of the modeled wing are compared to literature results and it is seen that both results are in good agreement. A simple planar four-bar mechanism is designed in the flexible multibody dynamics program ADAMS. The mechanism can perform a figure of eight shape when it is moving which mimics the flapping motion of the hawkmoth. FEM model of the wing is implemented to the mechanism as a flexible body and flapping simulations in vacuum conditions are conducted.

Subject Keywords

Flapping wing, Micro aerial vehicle, Finite element analysis, Modal analysis, Flapping mechanism, Flexible multibody dynamics

URI

https://hdl.handle.net/11511/96352

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

A. A. Ökmen, “MODELING OF THE HAWKMOTH WING AND ITS IMPLEMENTATION IN A FOUR-BAR FLAPPING WING MECHANISM,” M.S. - Master of Science, Middle East Technical University, 2022.