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 10 of 10 for “"Flow induced vibrations"”.
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Flow induced vibrations on a cable caused by waves plus current
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996.
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An investigation of flow-induced vibrations of a steam-generator tube
… dynamic behavior of a tube subjected to cross flow and study the stability of periodic solutions, bifurcations, and the route to chaos. The fluid-stiffness-controlled mechanism is chosen to represent the fluid forces and the impact forces are modeled by a piece-wise-Iinear spring. A two-point …
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CFD simulation of long slender offshore structures at high Reynolds number
… risers. These structures are vulnerable to flow-induced vibrations under certain environmental conditions which impacts their useful life. Flow-induced vibrations have been widely studied both experimentally and numerically especially at low Reynolds number. However, many questions remain …
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Wedged Vortex Generator Applications for Marine Vessels
… wedge-shaped VGs as the optimal design for flow manipulation. Comparative testing of three wedge shaped VG sizes at 1.3 m/s revealed the most effective configuration, which was subsequently evaluated across speeds ranging from 1.0 m/s to 1.6 m/s. The results showed a viscous drag reduction …
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A study on passive methods of vortex induced vibrations suppression
… operations, are often affected by vortex-induced vibrations (VIV). This phenomenon is caused by the interaction between a structure and shed vortices which can result in large amplitude vibrations of the structure that may lead to severe damage over time. Repairs to these systems are …
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Wire wrapped fuel pin hexagonal arrays for PWR service
… on the pressure drop, critical heat flux (CHF), vibrations, and fuel and cladding temperature. Vibrations limits on the wire wrap assemblies were imposed for flow induced vibrations (FIV) and thermal hydraulic vibrations (THV).
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Practical Analysis Tools for Structures Subjected to Flow-Induced and Non-Stationary Random Loads
… methods to predict response of sensors due to flow-induced vibrations in a pipe flow. The aim was to develop a tool which would enable an engineer to quickly evaluate the suitability of a particular design for a certain pipe flow application, without sacrificing fidelity. The primary methods, …
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Performance of Self-excited Energy Harvesters with Tip Bodies of Non-circular Cross Section Shapes
<p>An experimental study on the performance of self-excited energy harvesters with non-circular tip body shapes has been performed. The two tip body shapes analyzed correspond to a half cylinder and a square cross section. Experiments are carried out in the wind tunnel to record the voltage output …
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Piezoelectric energy harvesting: vortex induced vibrations in plants, soap films, and arrays of cylinders
… principles of the phenomenon of vortex induced vibrations were explored. Methods were developed to measure the amplitude and frequency of these vibrations in a wind tunnel, through high speed video and correlations that were found between oscillation and power output from the …
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Modelling and analysis of vibrations in flexible cylinders subjected to internal multiphase and external single-phase flows.
… cylinders subjected to internal two-phase slug flows and external vortex-induced vibrations (VIV) by taking into account the geometric and hydrodynamic nonlinearities. Flow-induced vibration (FIV) is a common phenomenon observed in various engineering systems such as heat exchangers, nuclear …