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 184 for “"Morphing"”.
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Elementary morphing shells
Multistable shells are not yet completely understood. Even under the widespread Uniform Curvature (UC) assumption, the limits of this behaviour have not been established and the influence of individual material and geometric parameters has not been described conclusively; this research explores …
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Morphing content in mobile applications
Smart phones are quickly becoming an integral part of our everyday lives. However, the mobile industry is still young, and the full potential of mobile phones has yet to be tapped. In this thesis, I present the design of a new mobile "super-application" called MobileHelp that aims to push the …
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Bucky gel actuator for morphing applications
… to develop novel applications for electro-active morphing materials. Three-layered bimorph nanocomposite has become an excellent candidate for morphing applications since it can be easily fabricated, operated in air, and driven with few volts. There has been limited published study on the …
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Multistable and morphing corrugated shell structures
… utilising their compliancy to achieve morphing behaviours that are not otherwise possible. Three distinct categories of shell are studied: (i) 'flat' corrugated sheets, which are multistable under the action of internal stresses, 'snapping' between their flat state and a cylindrically …
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Shape morphing structures via intercalation compounds
… high-strain application, including shape-morphing helicopter blades, boat hulls, satellites, and any other structure that benefits from shape change. An analysis is performed on the state of the technology, the intellectual property held, and the potential markets that exist. A …
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Dynamics and Control of Morphing Aircraft
… authority. Dynamical equations are derived for a morphing aircraft based on two primary representations; a general non-rigid model and a multi-rigid-body. A simplified model is then proposed by considering the altering structural portions to be composed of a small number of mass particles. The …
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An interactive framework for component-based morphing
This thesis presents an interactive morphing framework to empower users to conveniently and effectively control the whole morphing process. The novelty of the framework lies in the integration of global-level and local-level user control through the use of components, and the incorporation of …
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Optimization and Trajectory Analysis of Morphing Waveriders
… lift-to-drag ratio at a design Mach number. A morphing waverider changes the lower surface in order to keep the shock wave attached to the leading edge at a range of Mach numbers. The classic waverider design method creates the vehicle shape with sharp leading edges from a known flow field. …
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Supermanoeuvrability in a biomimetic morphing-wing aircraft
… study the supermanoeuvrability of a biomimetic morphing-wing case study aircraft system. Analytical and computational models of biomimetic flight dynamics are developed, utilising multibody dynamics, computational fluid dynamics, and reduced-order aerodynamic models; and validated with respect …
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Online advertisement morphing : empirical and strategic implications
… of the affects and implications of Morphing. The study includes methodologies that corporate world can formulate to develop strategic measures to target potential customers based on individual cognitive styles. The study also includes an analysis of the online advertising industry …
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Comparing visual features for morphing based recognition
This thesis presents a method of object classification using the idea of deformable shape matching. Three types of visual features, geometric blur, C1 and SIFT, are used to generate feature descriptors. These feature descriptors are then used to find point correspondences between pairs of images. …
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Aeroelasticity of Morphing Wings Using Neural Networks
… of the contour or the configuration of a wing (morphing) in flight. The use of smart materials, to accomplish these deformations, can imply that the stiffness of the wing with a morphing contour changes as the contour changes. For a rapidly oscillating body in a fluid field, continuously …
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The design of adaptive structures for wing morphing
… structures for achieving global multi-shape morphing aerodynamic configurations, by using slender structures. The proposed methodologies pursue two threads towards global optimisation of morphing structures, by providing means of aerodynamic enhancement, using efficient structural shape …
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Mechanical Properties of Candidate Materials for Morphing Wings
… materials that could be used as a skin for a morphing wing. A morphing wing is defined as a wing that changes shape. Although engineers have been designing different morphing wing configurations, there has been limited research investigating materials that could be used as a skin for a …
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Kinematic Design and Analysis of a Morphing Wing
… can be changed during flight. The so-called "morphing" that is required has been limited by a lack of feasible design solutions. One design concept is to use an adaptive structure, with an airfoil skin applied, as the shape-changing driver. Most designs of this kind require multiple actuators …
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Development of a morphing helicopter blade with electrochemical actuators
… upon ion intercalation, for the development of a morphing helicopter blade is explored. Using commercially available lithium-ion batteries as demostrators of the technology, two actuator prototypes suitable for the application are developed. The first prototype consists of a weave of fibers …
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