Blar i Institutt for marin teknikk på forfatter "Halse, Karl Henning"
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Active heave compensation of floating wind turbine installation using a catamaran construction vessel
Ren, Zhengru; Skjetne, Roger; Verma, Amrit Shankar; Jiang, Zhiyu; Gao, Zhen; Halse, Karl Henning (Peer reviewed; Journal article, 2021)The application of floating wind turbines is limited by the high cost that increases with the water depth. Offshore installation and maintenance continue to consume a high percentage of the project budget. To improve the ... -
Dual Quaternion Variational Integrator for Rigid Body Dynamic Simulation
Xu, Jiafeng; Halse, Karl Henning (Research report, 2016)In rigid body dynamic simulations, often the algorithm is required to deal with general situations where both reference point and inertia matrix are arbitrarily de- fined. We introduce a novel Lie group variational integrator ... -
Dynamic response analysis of a catamaran installation vessel during the positioning of a wind turbine assembly onto a spar foundation
Jiang, Zhiyu; Li, Lin; Gao, Zhen; Halse, Karl Henning; Sandvik, Peter Christian (Journal article; Peer reviewed, 2018)Installation of floating wind turbines is a challenging task. The time and costs are closely related to the installation method chosen. This paper investigates the performance of an efficient installation concept – a ... -
Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps
Xu, Jiafeng; Ren, Zhengru; Li, Yue; Skjetne, Roger; Halse, Karl Henning (Journal article; Peer reviewed, 2018)Ship roll motion is critical for offshore operations due to its lack of damping mechanism. This paper demonstrates a dynamic simulation scheme of an active roll reduction system using free-flooding tanks controlled by ... -
Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps
Xu, Jiafeng; Ren, Zhengru; Li, Yue; Skjetne, Roger; Halse, Karl Henning (Chapter; Peer reviewed, 2017)Ship roll motion is often the critical factor for offshore operations due to its lack of damping mechanism. This paper demonstrates a dynamic simulation scheme of an active roll reduction system using free-flooding tanks ... -
Mating Control of a Wind Turbine Tower-Nacelle-Rotor Assembly for a Catamaran Installation Vessel
Jiang, Zhiyu; Ren, Zhengru; Gao, Zhen; Sandvik, Peter Christian; Halse, Karl Henning; Skjetne, Roger (Chapter, 2018)The assembly and installation costs of an offshore wind farm can approach 20% of the capital expenditures; therefore, time efficient installation methods are needed for installing offshore wind turbines. This study ... -
Model-free anti-swing control of complex-shaped payload with offshore floating cranes and a large number of lift wires
Ren, Zhengru; Verma, Amrit Shankar; Ataei, Behfar; Halse, Karl Henning; Hildre, Hans Petter (Peer reviewed; Journal article, 2021)Being one of the most commonly used offshore operations, offshore lifting operations become increasingly challenging due to the gradually growing size and weight of payloads. The research on automatic control in lifting ... -
Response validation of a submerged floating tunnel segment
Liu, Ting; Hansen Viuff, Thomas; Leira, Bernt Johan; Xiang, Xu; Minoretti, Arianna; Halse, Karl Henning (Peer reviewed; Journal article, 2022)Tube segments are the main structural components of submerged floating tunnels (SFTs). Accurately estimating the hydrodynamic properties of these components is of critical importance for the optimization and safe design ...