Searched for: contributor%3A%22Metrikine%2C+Andrei+%28graduation+committee%29%22
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Bierhuizen, Luc (author)
Due to the presence of a monopile in a turbulent flow swirling vortices, known as horseshoe vortices, can form upstream of the structure near the cylinder-bed junction. Those vortices then travel downstream of the cylinder as they are being dragged along with the current. The horseshoe vortices can scoop up bed material surrounding the cylinder,...
master thesis 2020
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Hogerheijde, Joost (author)
To reach the Paris Agreement goals, switching from fossil fuels to renewable energy is inevitable. Wind power has proved to play a critical role in this transition. To speed up this transition, the wind industry must keep innovating. The major part of Wind Turbine Generators (WTGs) is installed by a jack-up which not only has its limitations...
master thesis 2020
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Huisman, Niek (author)
The goal of this research is to optimize the fiber layup of a carbon windsurfing boom for weight and stiffness. A windsurfing boom should be stiff to provide an efficient basis for the energy transfer from the sail through the surfer to the board. The weight of the boom is important as the total weight of the rig influences the performance,...
master thesis 2019
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Sulollari, Enxhi (author)
The strive for cleaner energy sources is one of the most demanding problems the world faces today. The role of offshore wind in the energy transition is becoming increasingly relevant. One of the areas where the industry expects to reduce conservatism and uncertainty in design is the interaction of the foundations of offshore wind turbines with...
master thesis 2019
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Zhang, Weiyi (author)
This thesis aims to gain insight into the global dynamic fluid-structure interaction response of a submerged floating tunnel (SFT) under the wave and current loading to enhance the design. To this end, the tunnel tube is modelled as a Euler-Bernoulli beam deformed in three directions (horizontal displacement, vertical displacement, rotational...
master thesis 2019
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Ali, Irfan (author)
Offshore wind farms are being developed at locations with moderate ice conditions such as the Baltic Sea, where drifting sea ice upon interacting with offshore structures could lead to the development of a phenomenon known as Ice-induced vibrations (IIV). These vibrations are especially severe when the turbine is idling. Current mitigation...
master thesis 2019
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Kok, Roy (author)
The purpose of this thesis is to formulate and test a computational method, based on linear complex modes, to calculate the dynamic response of a beam with a boundary dashpot excited by a non-linear response-dependent dissipative force. This impulse response method is a time-stepping method which iteratively approximates the non-linear force by...
master thesis 2019
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Hsu, Chih-gang (author)
In the simulation of floating wind turbines, a traditional rigid floater assumption becomes less valid while pursuing large size floating wind turbines with steel-efficient floaters. Up to date, hull flexibility still cannot be efficiently incorporated into aero-servo-elastic-hydro simulation tools, and the possible influence of hull flexibility...
master thesis 2019
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La Zara, Davide (author)
Crossing waterways is crucial to improve transport connections.<br/>In particular, new crossing methods are needed when the distance to be covered increases. Submerged Floating Tunnels (SFT) have been recently emerging as a cost-effective feasible crossing technique to connect fjords in Norway. However, only very little research has addressed...
master thesis 2019
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Smits, Roy (author)
With a fast growing world population, the lack of fresh water is one of the world’s biggest future concerns. Water stress can lead to conflicts, holds back economic growth and has a major impact on human health. Nowadays, more and more countries that lack fresh water sources are using the saline water from the oceans and desalinate it to produce...
master thesis 2019
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Jessurun, Timothy (author)
It is well known that for tall cylindrical structures under wind action, such as wind turbine towers, vortex induced vibrations (VIV) may occur. During the installation of offshore wind turbine towers there are different stages of transport where we might deal with VIV. The main objective of this thesis is to explore the possibility of modeling...
master thesis 2019
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van den Bosch, Valentijn (author)
As a reaction to urban densication, light weight building is an attractive concept for optimally utilizing the capacity of the existing built environment. A common issue paired with light weight construction is the need to engage in vibrational design, in order to minimize hindrance due to human activities such as walking, that cause vibrations...
master thesis 2019
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Vicca, Elke (author)
Hyperloop is a high-speed transportation mode which operates by sending magnetically levitated capsule-like vehicles through a near vacuum tunnel. Due to the reduced air resistance and friction, speeds exceeding those of modern aircraft should become possible. When the system is moved underground,<br/>the stability of vehicle vibrations may...
master thesis 2019
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Wegdam, Jeroen (author)
This thesis project discusses the development of a fast assessment tool for the performance of railway turnout crossings. The assessment tool is developed in Matlab and allows the user to swiftly set up a model and assess the performance. The rail geometry input can be either design drawings or in situ measured geometry. This allows the user to...
master thesis 2018
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Rosingh, Pieter (author)
Throughout the offshore industry large structures installed on the seabed use mudmats as a foundation to provide in sufficient bearing capacity and stability. Due to their size, the mudmats have a significant influence on the hydrodynamic behaviour and installation requirements. It is proposed to change the design of the mudmats from a near...
master thesis 2018
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Kelkitli, Ikbal (author)
The world’s oceans contain a vast wave energy potential. Many promising technologies of wave energy conversion have been developed, such as the Oscillating Water Column. BAM Infraconsult B.V. has developed the Ocean Falls concept of an oscillating water column that has the addition of a tube and a back wall which is able to move in order to...
master thesis 2018
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Nata, Spyridoula (author)
In order for the offshore wind industry to be competitive, the cost has to be driven down. One of the major factors that contribute to the overall cost is the over-dimensioning of the substructure. The response of the structure under various loading conditions can provide valuable insight in the design phase so as to provide a structural design...
master thesis 2018
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Djapara, Yosua (author)
The trend of the slender and high-rise building has made the structure prone to dynamic loading. This thesis is focused on the dynamic behavior of the high-rise building subjected to wind action. The acceleration becomes a limiting criterion in designing such structure which can be categorized as the comfort criteria of the building. Nausea and...
master thesis 2017
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Hendrikus Yun Fredo Ferdian, Fredo (author)
In the last couple of decades, Arctic Engineering has become a topic of interest. There are still plenty rooms of research to understand the unique characteristic of sea ice, especially in relation to offshore engineering. This includes the most fundamental problem in floating body motion analysis: the radiation-diffraction problem. A powerful...
master thesis 2017
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Ulubas, Burak (author)
master thesis 2017
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