Searched for: mods_note_programme_s%3A%22Offshore%255C%2BEngineering%22
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Verbist, Tom (author)
Ever since the commissioning of the first offshore wind farm in October 1991, the offshore wind market has experienced exponential growth all around the world. As more wind farms will be built offshore in the future, onshore grid connection and transmission capacity may not be sufficient to integrate this growing amount of offshore wind farms....
master thesis 2023
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Huting, Max (author)
The increasing demand for renewable energy sources has brought about the need for innovative solutions to harness energy from the wind. One such solution is floating offshore wind turbines (FOWT), which offer several advantages over traditional onshore wind turbines and bottom-fixed offshore wind turbines. FOWTs present a challenge concerning...
master thesis 2023
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van Gent, Koen (author)
When waves break, air and water mix and small air bubbles are formed in the water, creating aeration. The mixture of air and water alters the behavior of the fluid. Traditionally, it has been assumed that aeration has a damping effect on impact, as exemplified by the use of air bubbles in the swimming pool below the Olympic 10m platform and...
master thesis 2023
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Leenders, Kevin (author)
With the pressing matter of climate change, the importance of renewable energy sources is increasing day by day. A large portion of this renewable energy is to be generated with the use of wind turbines, which are commonly located onshore. In recent decades, great effort has been put in the development to place these turbines offshore, because...
master thesis 2023
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Tsota, Marinansy (author)
Suction caisson jacket (SCJ) is one of the most promising substructures, under certain conditions, for offshore wind turbines. Their unique characteristic of large diameter (D) compared to their small wall thickness (t) conducts them an object of study, concerning their transportation to the offshore location, as their structural stability...
master thesis 2023
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de Kraker, Stijn (author)
In the last decades, the urgency for sustainability has dawned on humanity. The increasing pressure for more renewable energy sources is accompanied by the success of the offshore wind turbine. As a result, the installation of offshore wind farms has become a major business. The challenges posed during installation become more complicated with...
master thesis 2023
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Pfeiffer, Marijn (author)
To overcome the problem of wave-induced vessel motions on the crane tip, technologies have been developed to compensate for these motions. Most vessels nowadays, are equipped with dynamic positioning systems, these systems reduce the yaw, surge and sway movement of the vessel. This leaves, the motions roll, pitch and heave uncompensated. To...
master thesis 2022
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Kilinç, Ufuktan (author)
Recently, there has been an increase in interest in floating wind turbines that are located offshore. These turbines allow for the harvesting of the power of the wind far offshore, where wind speeds are often higher.<br/><br/>Compared to their fixed counterparts, floating wind turbines allow for a certain mobility after the installation. This...
master thesis 2022
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Kingma, Pieter (author)
Floating offshore production units are typically anchored to the seabed with mooring chains. Structural degradation of mooring chain steel can lead to premature failure with large environmental and financial consequences. In the oceanic environment, corrosion and fatigue are the dominant failure modes for mooring chains. These damage mechanisms...
master thesis 2022
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Seegers, Jeroen (author)
The slip joint connection is a relatively new alternative method for connecting offshore wind turbine towers to prior installed monopiles. It consists of two overlapping conical sections that together form a connection. There are several challenges left to be solved before the slip joint can be applied on a commercial scale. One of those...
master thesis 2022
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Groenewegen, Rik (author)
The first large offshore wind farms installed in the North Sea Region (NSR) soon reach their technical end of lifetime. The wind turbines in these farms will have to be decommissioned after power production has stopped. Currently offshore wind turbines are decommissioned based on a method called reversed installation, a time consuming and...
master thesis 2022
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Kooloos, Wichert (author)
As wind turbines continue to increase in size, so do the loads acting on the drivetrain.<br/>To handle the higher loads the mass of the drivetrain needs to increase. A better understanding<br/>of this mass increase can result in lighter drivetrain design and provide<br/>an insight which drivetrain design has the lowest mass potential for large...
master thesis 2019
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Hulsbergen, Bas (author)
Shipyards these days see an increase in customers that specify combined speed and seakeeping ability design requirements. This requires the shipyard to make a prediction of the additional installed power required to maintain a certain speed when waves are encountered. The additional required installed power is directly related to the average...
master thesis 2019
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Vossers, Christiaan (author)
Over 450 oil platforms need to be removed from the North Sea in the next decade. Each of these platforms is custom designed for installation and service lifetime, but not for decommissioning. Allseas' Pioneering Spirit is the largest heavy lift vessel in the world, capable of lifting complete topsides in a single-lift operation. The vessel’s...
master thesis 2019
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Clades, Dinos (author)
This master thesis describes a method to determine the workability of an offshore heavy lift operation. By creating wave realisations based on and statistically equivalent to measured ocean weather data, a quick assessment of the risk of failure can be achieved.
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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Zwart, W.E. (author)
In order to guarantee safe operations in the offshore industry, at all time it is necessary to predict motion behaviour of structures in specific sea states accurately. Safety is very important for the offshore industry, which can come in jeopardy when motions are either extreme or unexpected with regards to predicted motion behaviour. This...
master thesis 2017
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ter Braak, J.C. (author)
During Abandonment and Recovery (A&R) operations, steel wire ropes (figure 1) can experience torsional deformation. This deformation is a result of the helical configuration and the tension gradient in the rope due to its self-weight. The latter is very high when the ropes are used in deep water operations. Since the static component of the...
master thesis 2017
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van Riet, T. (author)
In order to meet future energy demand, a more sustainable energy society is essential because fossil fuel reserves are depleting while the total energy consumption worldwide increases. One type of renewable energy which can play a role is ocean energy having the theoretical potential to exceed both current and future human energy needs. This...
master thesis 2017
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Morshuis, C.A. (author)
The Pioneering Spirit is the world’s largest construction vessel. The twin-hulled vessel is 382 m long and 124 m wide. At the bow is a slot, 122 m long and 59 m wide, that enables the Pioneering Spirit to straddle a platform and remove or install entire topsides up to 48,000 t in a single lift using eight sets of horizontal lifting beams. Until...
master thesis 2016
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