LARGE MOTION VISUALIZATION AND ESTIMATION FOR FLAPPING WING SYSTEMS

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dc.contributor.advisorBalachandran, Balakumaren_US
dc.contributor.authorHsu, Tzu-Shengen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2016-06-22T05:37:04Z
dc.date.available2016-06-22T05:37:04Z
dc.date.issued2015en_US
dc.description.abstractStudies of fluid-structure interactions associated with flexible structures such as flapping wings require the capture and quantification of large motions of bodies that may be opaque. Motion capture of a free flying insect is considered by using three synchronized high-speed cameras. A solid finite element representation is used as a reference body and successive snapshots in time of the displacement fields are reconstructed via an optimization procedure. An objective function is formulated, and various shape difference definitions are considered. The proposed methodology is first studied for a synthetic case of a flexible cantilever structure undergoing large deformations, and then applied to a Manduca Sexta (hawkmoth) in free flight. The three-dimensional motions of this flapping system are reconstructed from image date collected by using three cameras. The complete deformation geometry of this system is analyzed. Finally, a computational investigation is carried out to understand the flow physics and aerodynamic performance by prescribing the body and wing motions in a fluid-body code. This thesis work contains one of the first set of such motion visualization and deformation analyses carried out for a hawkmoth in free flight. The tools and procedures used in this work are widely applicable to the studies of other flying animals with flexible wings as well as synthetic systems with flexible body elements.en_US
dc.identifierhttps://doi.org/10.13016/M2818H
dc.identifier.urihttp://hdl.handle.net/1903/18158
dc.language.isoenen_US
dc.subject.pqcontrolledMechanical engineeringen_US
dc.subject.pquncontrolledaerodynamicen_US
dc.subject.pquncontrolledflapping wingen_US
dc.subject.pquncontrolledflexibilityen_US
dc.subject.pquncontrolledmanduca sextaen_US
dc.subject.pquncontrolledmotion estimationen_US
dc.titleLARGE MOTION VISUALIZATION AND ESTIMATION FOR FLAPPING WING SYSTEMSen_US
dc.typeThesisen_US

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