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 8 of 8 for “"Hydroelasticity"”.
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Hydroelasticity of High-Speed Planing Craft Subject to Slamming Events: An Experimental and Numerical Investigation of Wedge Water Entry
… hydrodynamic loading and structural response, or hydroelasticity, must be considered. In this work, a flexible V-shaped wedge, which vertically enters the calm water with an impact velocity, was examined experimentally and numerically to characterize the slamming of a representative cross-section …
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Time domain simulation of hydroelastic response of ships in large amplitude waves
… with non-linearities.<br/><br/>A two-dimensional hydroelasticity analysis for symmetric (i.e. vertical motions, distortions and loads) dynamic behaviour in waves, including the influence of nonlinearities, is presented in this thesis using two methods. In the first method the total response is …
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Structural Studies of Scallop Abductin, a Compressible Elastomer that Translates Hydrophobic Interactions to Elasticity
… in the absence of covalent cross-linking. A <em>“hydroelasticity”</em> model is proposed to explain the possible mechanism of elasticity in this gel aggregate.</p> <p>The purpose of the research described herein is to develop a bioelastomer that is suitable for the repair of damaged hyaline …
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Slamming of High-Speed Craft: A Machine Learning and Parametric Study of Slamming Events
… study will be carried out in the Virginia Tech Hydroelasticity Lab. This thesis provides the groundwork for this longitudinal project through meticulous analysis of irregular wave tow tank experiments. Through the modification of machine learning techniques and taking inspiration from facial …
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Mechanics of Flexible Composite Hull Panels Subjected to Water Impacts
… during the impact. Previous inertial based hydroelasticity onset theories are shown to be unsupported by the experimental data, with the greatest effect of inertial effects occurring at the lowest impact velocities. Strains in the long direction of the panel of up to 50% of the strain in the …
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The role of flexibility on propulsive performance of flapping fins
The versatility of the fish to adapt to diverse swimming requirements has attracted the attention of researchers in studying bioinspired propulsion for developing efficient underwater robotics. The tail/caudal fin is a major source of thrust generation and is believed that the fish modulates its …
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Dynamical System Representation and Analysis of Unsteady Flow and Fluid-Structure Interactions
A dynamical system approach is utilized to reduce the representation order of unsteady fluid flows and fluid-structure interaction systems. This approach allows for significant reduction in the computational cost of their numerical simulations, implementation of optimization and control …
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ΔΥΝΑΜΙΚΗ ΤΩΝ ΡΗΓΜΑΤΩΜΕΝΩΝ ΔΟΚΩΝ ΣΤΟ ΝΕΡΟ
THE NATURAL FREQUENCIES AND THE CORRECTION COEFFICIENT Z FOR THE THREDIMENSIONAL FLOW WERE COMPUTED. THIS WAS ACCOMPLISHED WITH TIMOSHENKO BEAM THEORY, ANALYTICALLY AND WITH ONE DIMENSION FINITE ELEMENTS, BY INTRODUCING THE CRACK EFFECT WITH LOCAL COMPLIANCE COEFFICIENTS. ALSO WAS ACCOMPLISHED, BY …