Browsing SINTEF Open by Author "Moan, Torgeir"
Now showing items 1-6 of 6
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A Time-Domain Method for Hydroelastic Analysis of Floating Bridges in Inhomogeneous Waves
Fu, Shixiao; Wei, Wei; Ou, Shaowu; Moan, Torgeir; Deng, Shi; Lie, Halvor (ASME Proceedings | Torgeir Moan Honoring Symposium;OMAE2017-62534, Chapter, 2017-06-25)Based on the three dimensional potential theory and finite element method (FEM), this paper presented a method for time-domain hydroelastic analysis of a floating bridge in inhomogeneous waves. A floating bridge in both ... -
Analysis of lifting operation of a monopile for an offshore wind turbine considering vessel shielding effects
Li, Lin; Gao, Zhen; Moan, Torgeir; Ormberg, Harald (Journal article; Peer reviewed, 2014-12)This study addresses numerical simulations of the lifting operation of a monopile for an offshore wind turbine with a focus on the lowering process. A numerical model of the coupled system of the monopile and vessel is ... -
Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines
Rasekhi Nejad, Amir; Bachynski, Erin Elizabeth; Li, Lin; Moan, Torgeir (Journal article; Peer reviewed, 2016-09)This paper investigates the correlation between the tower-top axial acceleration and the load effects in drivetrain components in a monopile (bottom-fixed) offshore wind turbine. In designing offshore wind turbines, it is ... -
Effect of wave inhomogeneity on fatigue damage of mooring lines of a side-anchored floating bridge
Dai, Jian; Leira, Bernt Johan; Moan, Torgeir; Alsos, Hagbart Skage (Journal article; Peer reviewed, 2020)Mooring systems are important structural components of very long floating bridges. They effectively limit the transverse motions of the bridge under environmental loads. They also add viscous hydrodynamic damping to the ... -
Inhomogeneous wave load effects on a long, straight and side-anchored floating pontoon bridge
Dai, Jian; Leira, Bernt Johan; Moan, Torgeir; Kvittem, Marit Irene (Journal article; Peer reviewed, 2020-07)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 ... -
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, 2015-07)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 ...