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 7 of 7 for “"wing shapes"”.
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Improving Seaglider Efficiency: An Analysis of Wing Shapes, Hull Morphologies, and Propulsion Methods
<p>Autonomous underwater gliders are a family of autonomous underwater vehicles used for long-term observation of oceanic environments. These gliders leverage changes in buoyancy and the resulting vertical motion, to generate forward locomotion via hydrodynamic surfaces. In order to function for …
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Geometric Trimming and Curvature Continuous Surface Blending for Aircraft Fuselage and Wing Shapes
… blending of an aircraft fuselage shape and a wing shape at a closed trimming intersection curve, and verifies the properties of the newly created surface. In order to distinguish how well the new surface approximates the original, an error comparison tool developed in MATLAB has been employed.
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Response surface approximations for pitching moment including pitch-up in the multidisciplinary design optimization of a high-speed civil transport
… during landing or takeoff for some wing shapes could not be included directly in the design process. Using response surface methodology, polynomial approximations to the results obtained from a computationally expensive estimation method were developed by analyzing a set of …
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Flight And Symbolic Modeling Of A 3D Printed Ornithopter
… and analysis of lift forces produced by wings flapping in air. First, a method was developed to 3D print functional flapping wings. The use of 3D printing technology has greatly expanded the possibilities for wing fabrication, allowing wing shapes and structures to replicate those of real …
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Wing flexibility and design for animal flight
The wings of flying animals change shape dramatically during flight, yet the control and effects of these shape changes have received little attention. In Chapter 1, I discuss the potential effects of wing flexibility and dynamic shape changes in flying vertebrates (who can actively control wing …
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On a Cartesian cut-cell methodology for simulating atmospheric ice accretion on aircraft
… droplets impinge on exposed surfaces such as wings and rotor blades. These droplets may freeze on the surface thereby changing lift characteristics and disturb weight and aerodynamic balances. The multiple length scales involved prevent designing dynamically similar flows making traditional …
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Evolution of the ZRS and the Regulation of SHH Expression in the Forelimbs of Bats.
… and Rhinolophus clivosus (which have different wing shapes) was linked to a β-globin-LacZ reporter construct and used in transgenic mice experiments. A mouse ZRS with bat mutations as well as a wild type mouse ZRS (the control) were also tested. Transgenic results suggest that the bat ZRS has …