Browsing NTNU Open by Author "Kvittem, Marit Irene"
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Dynamic analysis of floating wind turbines during pitch actuator fault, grid loss, and shutdown
Bachynski, Erin Elizabeth; Etemaddar, Mahmoud; Kvittem, Marit Irene; Luan, Chenyu; Moan, Torgeir (Journal article; Peer reviewed, 2013)Coupled non-linear aero-hydro-servo-elastic simulations of three types of floating wind turbines (spar, semi- submersible, and tension leg platform) are carried out for several fault cases over a range of environmental ... -
Inhomogeneous wave load effects on a long, straight and side-anchored floating pontoon bridge
Dai, Jian; Leira, Bernt Johan; Moan, Torgeir; Kvittem, Marit Irene (Peer reviewed; Journal article, 2020)In this paper, we present a numerical study on the hydroelastic response of a 4.6 km long fjord crossing floating bridge subjected to wave loads. The bridge is straight in design and supported by 35 pontoons along its full ... -
Modelling and response analysis for fatigue design of a semi-submersible wind turbine
Kvittem, Marit Irene (Doktoravhandlinger ved NTNU, 1503-8181; 2014:337, Doctoral thesis, 2014)Offshore wind is seen as part of the solution for reducing the world’s dependency on nonrenewable sources with CO2 intensive production processes. Developing wind turbines that float will enable us to harness wind in deep ... -
Stochastic dynamic load effect and fatigue damage analysis of drivetrains in land-based and TLP, spar and semi-submersible floating wind turbines
Rasekhi Nejad, Amir; Bachynski, Erin Elizabeth; Kvittem, Marit Irene; Luan, Chenyu; Gao, Zhen; Moan, Torgeir (Journal article; Peer reviewed, 2015)This paper deals with the feasibility of using a 5 MW drivetrain which is designed for a land-based turbine, on floating wind turbines. Four types of floating support structures are investigated: spar, TLP and two ... -
Time domain analysis procedures for fatigue assessment of a semi-submersible wind turbine
Kvittem, Marit Irene; Moan, Torgeir (Journal article; Peer reviewed, 2015)Long term time domain analysis of the nominal stress for fatigue as- sessment of the tower and platform members of a three-column semi- submersible was performed by fully coupled time domain analyses in Simo- Ri ex-AeroDyn. ... -
Wind-wave misalignment effects on floating wind turbines: motions and tower load effects
Bachynski, Erin Elizabeth; Kvittem, Marit Irene; Luan, Chenyu; Moan, Torgeir (Journal article; Peer reviewed, 2014)The dynamic responses of a spar, tension leg platform (TLP), and two semisubmersible floating wind turbines (FWTs) in selected misaligned wind and wave conditions are investigated using numerical simulation with an ...