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Rodriguez Piedrabuena, Alba (author)
The Global Wind Energy Council (GWEC) forecasts an accelerated increase in wind installations as a result of the aggressive climate change and green energy objectives set by the majority of countries. As a consequence, new regions worldwide that were previously thought to be unsuitable for the construction of offshore wind farms due to the soil...
master thesis 2024
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Meijer, Philip (author)
This study examines the effect of adding helical piles to the foundation mechanism of monopile installation templates. A monopile installation template is a gravity-based structure, which is placed on the seabed. The installation template is utilised for the installation of monopiles, and to ensure its verticality during this installation. At...
master thesis 2023
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Metsch, Youri (author)
Previous research into floating offshore wind turbines consistently shows some manner of discrepancy between numerical and experimental simulations when it comes to low frequency forces and motions. A part of solving this issue is the generation of accurate data for the calibration and validation of the numerical models, needed because of the...
master thesis 2023
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Khosroshahi, Siamak Farajzadeh (author), Masina, M. (author), Antonini, A. (author), Ransley, Edward (author), Brownjohn, James Mark William (author), Dobson, Peter (author), D’Ayala, Dina (author)
Maintaining offshore steel structures is challenging and not environmentally friendly due to the frequent visits for inspection and repairs. Some offshore lighthouses are equipped with carbon steel helidecks fixed onto their lantern galleries in the 1970s to provide easy and safe access to maintenance staff and inspectors. Even though the...
journal article 2022
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Driessen, Mark (author)
Current service and installation activities to offshore wind turbines (OWTs) are mainly carried out by jack-up vessels. These vessels are less susceptive to disturbances caused by sea waves when they lift their hull from the water level by jacking down multiple legs to the seabed. An alternative is a crane mounted on a floating vessel, which has...
master thesis 2021
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van Geel, Mark (author)
This research explores the development of an accurate yet fast methodology to use measured vessel motions for a fatigue damage calculation in the cranes during suspended transport. First, the kinematics, definitions and particulars of the system of interest – the vessel including crane and suspended jacket - are provided. Then, literature...
master thesis 2021
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IJzermans, Kasper (author)
A lack of knowledge on the economic feasibility and optimal design and operation of offshore hybrid wind-hydrogen parks is identified by utility companies and grid operators. This study reviews the techno-economic optimisation of an offshore wind-hydrogen park from a developer’s perspective and specifically considers the electrolyser technology...
master thesis 2021
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Ilahibaks, Shaneeza (author)
In the design of offshore wind turbine generator (WTG) support structures, a large number of environmental parameters are used. The most important ones include the wind climate (wind speed and wind direction probability distributions), the wave climate (wave height and wave direction as well as peak frequencies of the waves, and water levels)...
master thesis 2020
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Broersen, Tijn (author)
The number of offshore wind farms is growing rapidly, which increases the likelihood of ship collisions with offshore wind turbines. Additionally, the cost of energy reduction for wind turbines is achieved due to radical design optimizations. Therefore, simple methods should be obtained to determine the offshore wind turbine response during ship...
master thesis 2020
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Vooijs, Irene (author)
Tetrahedron is working on a new design for large offshore cranes that can lift higher. This is necessary due to the increasing size of offshore wind turbines, and the inability of the conventional cranes to scale up without needing a larger ship that is carrying them. To compute the forces working on the trusses of the crane structure,...
master thesis 2020
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Yagüe Martín, Adrian (author)
Premature failures in large offshore Wind Turbines are often attributed to bearing failure despite gearboxes being designed and developed using the best bearing design practices. Furthermore, as turbine size and rated power increase, bearings display an enhanced tendency to fail. Unscheduled bearing replacement at sea is a complex, costly,...
master thesis 2020
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van Vliet, Marc (author)
This report investigates the potential reduction of steel weight for offshore wind turbine supporting jacket structures, if conventional welded joints are replaced by innovative wrapped FRP joints. This new type of connection is under development by Dr. Marko Pavlovic at the Delft University of Technology, and shows outstanding fatigue...
master thesis 2019
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Smit, Dominique (author)
The subject of this thesis is the development and evaluation of a modular well intervention business concept. The concept aims to bridge the gap between surface and subsea well intervention markets, currently served by different vessel types, using a platform vessel and equipment modules. The regional scope is South-East Asia, due to its low...
master thesis 2019
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Slingerland, Pieter (author)
More offshore wind projects are being developed. Shallow locations are more occupied and a tendency to deeper water and to larger wind turbines is seen. These create more bending moment which can be more easily resisted by jacket substructures. The state of the art installation process of a jacket is as follows. The foundation piles are driven...
master thesis 2019
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Schothorst, Quinten (author)
In this thesis a model is set up to assess the economic viability of early stage buoyancy design concepts. The main research question is to find out if a versatile design approach to the buoyancy lifting concept, i.e. being able to take on multiple projects, can result in an economical viable solution for decommissioning offshore platform...
master thesis 2018
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Bijleveld, Floriaan (author)
In the past decades the understanding of fracture of ductile material has increased substantially. Research has shown that the onset of fracture highly depends on the full state of stress inside the material. Better understanding of fracture resulted in more advanced and complex fracture models being conceived, allowing researchers to predict...
master thesis 2018
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Koppes, Fabian (author), van der Veer, Machiel (author), Veldt, Timo (author), Marif, Kizjè (author), Smits, Roy (author)
Due to climate change and growing cities, water scarcity is becoming one of the futures biggest problems. On top of that, the population and prosperity of cities around the equator are growing fast. Meaning that the need for electricity, cooling and drinking water will grow fast in the following decades. ROTEC’s vision is that these growing...
student report 2018
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journal article 2018
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Dumans, Max (author)
Boskalis subsidiary Dockwise is the global market leader in heavy marine transport. Their fleet of over 20 semi-Submersible Heavy Transport Vessels (SHTV) is capable to carry the heaviest and largest structures. Until today the load or discharge operation of a floating body has only been performed in sheltered waters. Here, the influences of the...
master thesis 2017
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journal article 2017
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