Browsing Institutt for marin teknikk by Author "Bachynski, Erin"
Now showing items 1-20 of 36
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A Winkler Model for the Seismic Analysis of Monopile Foundations - An Exploratory Study on the Modelling of Soil-Structure Interaction during Earthquakes
Bouman, Thijs (Master thesis, 2018)The growing interest in the development of offshore wind farms in seismic active areas demands a better insight into the requirements earthquakes impose on the design of wind turbine foundations. The complexity of the ... -
Analysis of Innovative Mooring Systems for Floating Semi-Submersible Offshore Wind Turbines
Danielsen, Oda Emilie Nilseng (Master thesis, 2017)This thesis considers the possibilities of cost reduction of the mooring system for a floating semi-submersible wind turbine by inclusion of fibre rope instead of, or together with, chain mooring lines. Polyester fibre ... -
Comparison of Potential Flow and CFD for a Column With Heave Plate
Bots, Michiel (Master thesis, 2020)Floating offshore wind turbines can only withstand a limited amount of (heave) motions before the equipment fails. In order to reduce the heave motion, the DeepCwind floater for offshore floating wind turbines makes use ... -
Computation of Nonlinear Wave Loads on Floating Structures
Rivera Arreba, Irene (Master thesis, 2017)Floating wind turbines (FWTs) are proposed as a method to harness the significant wind energy resource in deep water. International research efforts have led to the development of coupled numerical global analysis tools ... -
Consequences of Load Mitigation Control Strategies for a Floating Wind Turbine
Lee, Chern Fong (Master thesis, 2019)Wind turbines with floating support structures are blessed with their potential in generating high quality and affordable electricity due to the economics of scale. However, conventional land-based wind turbines blade pitch ... -
Design Load Cases for Offshore Wind Turbines
Eimstad, Henning (Master thesis, 2020)I denne oppgaven er to forskjellige modeller for fundamentet til en offshore vindturbin (10MW DTU monopæl referanseturbin) studert nærmere for både deterministiske og stokastiske lasttilfeller, og SIMA er brukt som ... -
Design of Monopile Foundations to Support the DTU 10 MW Offshore Wind Turbine
Velarde, Joey (Master thesis, 2016)Further advancements in the offshore wind industry, which come with the use of larger wind turbines at deeper water, require larger support structures. For shallow and intermediate water depths, monopile foundations still ... -
Dynamic responses of monopile wind turbines subjected to nonlinear wave loads
Moen, Elise (Master thesis, 2020)I denne masteroppgaven blir eksperimentelle målinger fra en vindturbin med monopælfundament utsatt for regulære og irregulære bølger undersøkt. Monopælen har en diameter på 9 meter og bærer en 10 MW vindturbin. Ulike ... -
Dynamic wind farm layout optimization
Kilinc, Ufuktan (Master thesis, 2022)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. Compared ... -
Efficient Modelling and Design Optimization of Large Floating Wind Turbines
Hegseth, John Marius (Doctoral theses at NTNU;2020:356, Doctoral thesis, 2020)Floating wind turbines (FWTs) are considered a promising solution for wind energy harvesting in deep water, but are currently too expensive to compete with other energy sources. Being a relatively new and immature technology ... -
Efficient rotor modelling for real-time hybrid testing
Yu, Jingyi (Master thesis, 2017)Small-scale model tests in wave basins are important tools for validating numerical tools, evaluating system performance, and studying physical phenomena related to floating wind turbines. Hydrodynamic tests generally ... -
Fishtailing behaviour of single point moored floating wind turbines
Ma, Yucong (Master thesis, 2020)The demand for clean energy is growing rapidly and the offshore wind industry is moving from shallow water to an intermediate depth. When the water is deep enough, the floating wind turbines are more feasible than the ... -
Gradient-based design optimization of a semi-submersible floating wind turbine
de Renty, Benoit (Master thesis, 2020)This work presents a linearized model of a floating wind turbine using the semi-submersible OOStar base geometry, a 10MW turbine and automation of the potential flow coefficients computation. It is associated with a design ... -
Hydrodynamic Analysis of a Point Absorbing Wave Energy Converter in Heave and Surge
Hernes, Helle; Sjøvaag, Hedda Sofie (Master thesis, 2020)Abstract will be available on 2023-07-01 -
Hydrodynamic Analysis of a Point Absorbing Wave Energy Converter in Heave and Surge
Hernes, Helle; Sjøvaag, Hedda (Master thesis, 2020)Abstract will be available on 2023-07-01 -
Hydrodynamic Interaction Among the Pontoons of a Floating Bridge: Effect of Global Responses
Killi, Marius Lien (Master thesis, 2018)The National Public Road Administration has made a plan to establish a ferry-free road connection between Kristiansand and Trondheim. Bjørnafjorden is one of these fjords that have to be crossed, and several solutions are ... -
Hydrodynamic Modelling Effects on Fatigue Calculations for Monopile Offshore Wind Turbines
Malik, Mohibb Ghani (Master thesis, 2016)For shallow and intermediate water depths, monopile foundations are the most commonly used concept, and is considered the most promising with respect to the cost of energy. The typical highest structural eigenperiods of ... -
Impact of seabed scour on the dynamics of bottom-founded offshore wind turbines with large diameter monopiles
Sarkar, Reeti (Master thesis, 2019) -
Lateral response controlfor large-diameter monopile offshore wind turbines
Stava, Simon (Master thesis, 2020)Offshore vindturbiner er regulert av et kontrollsystem med det overordnede målet å optimalisere for energiproduksjon. Dette systemet kontrollerer generatorens dreiemoment og rotorblad-pitch med hensyn til den innkommende ... -
Load transfer from coupled analysis to structural design of FWTs
Balasubramaniyan, Vignesh (Master thesis, 2022)It is of research interest to establish a technique to capture the loads on the structural members of the offshore wind turbine when they are exposed to simultaneous wind and wave action. Unlike other floating offshore ...