Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 36 for “"Flapping Wing"”.
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Linear actuator powered flapping wing
… an almost silent linear actuator to power a flapping wing UAV. In order to this, a wing was designed and installed into a test set-up to replicate normal flight conditions of flapping wing flight (FWF). The designs of the wing, the test set-up and the actual experiments were biomimetic, …
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Flapping Wing Flight Dynamic Modeling
Highly agile, hover capable flapping wing flight is a relatively new area of study in engineering. Researchers are looking to flapping flight as a potential source for the next generation of reconnaissance and surveillance vehicles. These systems involve highly complicated physics surrounding the …
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Modeling and Control of Flapping Wing Robots
The study of fixed wing aeronautical engineering has matured to the point where years of research result in small performance improvements. In the past decade, micro air vehicles, or MAVs, have gained attention of the aerospace and robotics communities. Many researchers have begun investigating …
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Reduced Order Modeling of Flapping Wing Flight Dynamics
Flapping wing vehicles have become a compelling alternative to classical fixed or rotary wing aircraft, especially as unmanned aircraft technology focuses on smaller, more agile platforms. Flying insects provide an inspiration for the control of flapping wing platforms, using limited computational …
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The aerodynamic and structural study of flapping wing vehicles
… aerodynamic and structural study carried out on flapping wings and flapping vehicles. Theoretical and experimental investigation of aerodynamic forces acting on flapping wings in simple harmonic oscillations is undertaken in order to help conduct and optimize the aerodynamic and structural design …
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Bi-directional Flyback Converter Circuit Design for Flapping-wing Microrobots
… interest in developing biologically inspired flapping-wing micro aerial robots that mimic the behavior of aerial insects. One of the major design challenges for sub-gram aerial robots is to achieve power autonomy. Over the past decade, numerous designs of sub-gram aerial robots have been …
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An Analytical Investigation of Flapping Wing Structures for Micro Air Vehicles
An analytical model of flapping wing structures for bio-inspired micro air vehicles is presented in this dissertation. Bio-inspired micro air vehicles (MAVs) are based on insects and hummingbirds. These animals have lightweight, flexible wings that undergo large deformations while flapping. …
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DESIGN AND CONTROL OF A HUMMINGBIRD-SIZE FLAPPING WING MICRO AERIAL VEHICLE
Flying animals with flapping wings may best exemplify the astonishing ability of natural selection on design optimization. They evince extraordinary prowess to control their flight, while demonstrating rich repertoire of agile maneuvers. They remain surprisingly stable during hover and can make …
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Experimental and computational analysis for insect inspired flapping wing micro air vehicles
… of science with the aim of one day developing a Flapping Wing Micro Aerial Vehicle (FWMAV) which can replicate the flight of nature's creatures. These types of autonomous robotic vehicles can fulfil tasks which are not suitable for manned vehicles especially when risks to human safety are …
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A Study on the Control, Dynamics, and Hardware of Micro Aerial Biomimetic Flapping Wing Vehicles
… is the original design of the first airplanes. Flapping wings hold much engineering promise with the potential to produce lift and thrust simultaneously. In this research, modeling and simulation of a flapping wing vehicle is generated. The purpose of this research is to develop a control …
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Gait and Morphology Optimization for Articulated Bodies in Fluids
… of fish-like robots, and experiments on a flapping wing robot. Novel contributions were made in every focus. The first focus was on input waveform optimization. This goal of this research was to develop a means by which the optimal input waveforms can be selected to vibrationally stabilize …
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Design, Analysis, and Optimization of Vibrational Control Strategies
… method is applied for altitude control of flapping wing micro-air vehicles by considering the sweeping (flapping) angle of the wings as the inputs. Using the feathering (pitch) angles of the wings as additional inputs, and using non-symmetric flapping, the control method is then extended …
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RoboFly: Towards Autonomous Flight of a Multimodal Insect-Scale Robot
… monitoring for smart agriculture. Insect-sized flapping-wing robots draw inspiration from nature's tiny machines such as flies and bees. Earlier iterations of these robots have successfully demonstrated hovering flight. However, there are some limitations to their abilities. Prior designs …
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Modeling and Analysis for Optimization of Unsteady Aeroelastic Systems
… second part, the unsteady aerodynamic aspects of flapping micro air vehicles (MAVs) are modeled. This modeling is required for evaluation of performance requirements associated with flapping flight. The extensive computational resources and time associated with the implementation of high-fidelity …
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Unsteady Aerodynamics of Deformable Thin Airfoils
… of locomotion is vital in the development of flapping wing aircraft. This paper uses potential flow aerodynamics to extend the unsteady aerodynamic theory of Theodorsen and Garrick (which is restricted to rigid airfoil motion) to deformable thin airfoils. Frequency-domain lift, pitching moment …
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Design and construction of an autonomous ornithopter
… the subject of flying vehicles propelled by flapping wings, also known as ornithopters, has been an area of interest because of its application to micro aerial vehicles (MAVs). These miniature vehicles seek to mimic small birds and insects to achieve never before seen agility in flight. This …
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Characterization of Flexible Flapping Wings and the Effects of Solar Cells for Miniature Air Vehicles
Enhancing the performance of Flapping Wing Miniature Air Vehicles (MAVs) requires reducing the weight and total energy loss while increasing the efficiency. This thesis investigates an approach to reduce total energy loss through an energy harvesting technology, flexible solar cells. These cells …
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Design of a flapping mechanism for reproducing the motions at the base of a dragonfly wing
… development of micro-air vehicles that use the flapping wing model in an attempt to achieve the high levels of maneuverability that insects have. The flight of the dragonfly has been chosen to be modeled because of its exceptional flight capabilities. This thesis addresses the flapping mechanism …
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Bat Inspired Lifesize Ornithopter with Passive Lateral Wing Retraction
… have great freedom of movement in flight. Bats' wings have a wing membrane that is tensioned by their fingers and arms, allowing them to retract their wings laterally in flight. This distinct motion has allowed bats to be the only mammals capable of sustained flight, adding to their evolutionary …
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