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Micro air vehicles (MAVs) are intended for future intelligence,
surveillance, and reconnaissance use. To adequately fulfill a
clandestine capacity, MAVs must operate in close proximity to their
intended target without eliciting counter-observation. This
objective, along with DARPA's constraint of a sub-15 centimeter
span, requires future MAVs to mimic insect appearance and flight
characteristics. This thesis describes an experimental method for
conducting a structural analysis of a Manduca Sexta (hawkmoth)
forewing. Geometry is captured via computed tomography (CT), and
frequency data is collected using laser vibrometry in air and
vacuum. A finite element (FE) model is constructed using quadratic
beams and general-purpose shell elements, and a linear dynamic
analysis is conducted. A preliminary verification of the FE model
is carried out to ensure the Manduca Sexta forewing is adequately
characterized, providing a basis for future fluid-structural
interaction computations. Included is a study regarding the
aeroelastic effects on flapping-wing insect flight, and an analysis
of the structural dynamic anomalies of conventional, flat,
semi-rigid flapping wings.
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