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 “"monopile"”.
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Monopile Foundation Offshore Wind Turbine Simulation and Retrofitting
… their own benefits. The most common types are: monopile, jacket, TLP, Semi-Submersible, and SPAR. The monopile foundation OWT has been proven to be the most economic selection for water depths up to approximately 25m. This thesis has analyzed strictly monopile foundations due to their previous …
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Cyclic behaviour of monopile foundations for offshore wind turbines in clay
… (both current and planned) are founded on monopiles, large circular steel pipe piles ranging from 4.0 m – 7.5 m in diameter. Based on available borehole records, most planned wind turbines in the UK will be founded in overconsolidated clay deposits. Monopile design is done via usage of the …
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Fracture mechanics analysis of offshore wind turbine monopile structures for lifetime extension
… is lifetime extension, that is, operating an OWT monopile beyond its original lifetime if it can be shown that the monopile possesses structural reserves. Currently, the industry practise is to establish the extent of structural reserves by repeating the initial S-N fatigue calculation with …
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Scale effects in testing of a monopile support structure submerged in tidal currents.
… (DSE) and Turbulence Scale Effects (TSE) of a monopile support structure using Computational Fluid Dynamics (CFD). Scale models dimensioned according to the Froude scaling criterion was used for the DSE investigation whereas real time turbulent velocity profile sampled from the Firth of Forth, …
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The Seismic Response of Offshore Wind Turbines Supported by Monopiles and Alternative Foundations in Liquefiable Soils
… detrimental to offshore wind turbines (OWTs). Monopiles have emerged as the preferred foundation type for offshore wind turbines in most APAC countries. These foundations were initially designed based on the experience acquired from Europe, in regions that are not seismically active. However, …
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Innovative hull design for servicing offshore wind turbines
… and when docked with an offshore wind farm monopile. When designs were being investigated particular attention was paid to novel hull geometry, and the addition of heaveplates to catamaran hulls. A directional study on WFSV interaction with a monopile was carried out, and polar plots of …
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Foundations for an offshore wind turbine
… This thesis considers the performance of a monopile foundation under typical vertical and horizontal storm loading conditions. Capacity, deflection, and rotation of a proposed monopile foundation are calculated by various methods to simulate the design procedure. The results show that very …
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Experimentelle Untersuchungen zur Verformungsakkumulation und Tragfähigkeitsreduktion von zyklisch belasteten Pfählen
… types of driven pile foundations, either the monopile or the multi-pile foundation, are frequently envisaged as foundation systems. Depending on the chosen variant the piles transfer the loading in different ways into the subsoil. The monopile bears the lateral loads from wind and waves …