Browsing Institutt for marin teknikk by Author "Katsikogiannis, George"
Now showing items 1-6 of 6
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Application of a lumping method for fatigue design of monopile-based wind turbines using fully coupled and simplified models
Katsikogiannis, George; Hegseth, John Marius; Bachynski-Polic, Erin Elizabeth (Peer reviewed; Journal article, 2022)The study presents different methods for fatigue assessment of monopile-based offshore wind turbines. Their accuracy and computational time is compared to full long-term time domain results. The damage-equivalent lumping ... -
Assessing some statistical and physical modelling uncertainties of extreme responses for monopile-based offshore wind turbines, using metocean contours
Katsikogiannis, George; Haver, Sverre Kristian; Bachynski-Polic, Erin Elizabeth (Peer reviewed; Journal article, 2024)This study examines the influence of probabilistic models for wave parameters in the joint environmental model and hydrodynamic/soil models on extreme mudline bending moments for monopile-based wind turbines at representative ... -
Dynamic Response of A Large-Diameter Monopile Considering 35-Hour Storm Conditions
Bachynski, Erin Elizabeth; Page, Ana M.; Katsikogiannis, George (Journal article; Peer reviewed, 2019)As a part of the assessment of foundation resistance for monopiles, several offshore wind standards prescribe symmetric 35-hour (or 42-hour) storm sequences in terms of wind speed and significant wave height. The temporal ... -
Environmental lumping for efficient fatigue assessment of large-diameter monopile wind turbines
Katsikogiannis, George; Sørum, Stian Høegh; Bachynski, Erin Elizabeth; Amdahl, Jørgen (Peer reviewed; Journal article, 2021)Fatigue damage is one of the governing factors for the design of offshore wind turbines. However, the full fatigue assessment is a time-consuming task. During the design process, the site-specific environmental parameters ... -
Fatigue sensitivity to foundation modelling in different operational states for the DTU 10MW monopile-based offshore wind turbine
Katsikogiannis, George; Bachynski, Erin Elizabeth; Page, Ana M. (Journal article; Peer reviewed, 2019)The importance of foundation modelling for the support-structure fatigue damage estimation of a 10 MW monopile based offshore wind turbine is investigated in different operational states and wind-wave misalignment conditions. ... -
Fatigue sensitivity to foundation modelling in different operational states for the DTU 10MW monopile-based offshore wind turbine
Katsikogiannis, George; Bachynski, Erin Elizabeth; Page, Ana M. (Journal article; Peer reviewed, 2019)The importance of foundation modelling for the support-structure fatigue damage estimation of a 10 MW monopile based offshore wind turbine is investigated in different operational states and wind-wave misalignment conditions. ...