• Experimental and Numerical Investigation of a Double-Acting Offshore Vessel Performance in Level Ice 

      Su, Biao; Skjetne, Roger; Berg, Tor Einar (Journal article; Peer reviewed, 2014)
      In this paper a numerical model and experimental data are used to investigate the level ice performance of a double-acting intervention vessel. The icebreaking capability and maneuverability in level ice are analyzed by ...
    • Image Processing for Ice Floe Analyses in Broken-ice Model Testing 

      Zhang, Qin; Skjetne, Roger; Metrikin, Ivan; Løset, Sveinung (Journal article; Peer reviewed, 2015)
      The ice floe shape and size distribution are important ice parameters in ice-structure analyses. Before performing an analysis at full scale, the dynamic positioning (DP) experiments in model ice at the Hamburg Ship Model ...
    • Image Techniques for Identifying Sea-Ice Parameters 

      Zhang, Qin; Skjetne, Roger (Journal article; Peer reviewed, 2014)
      The estimation of ice forces are critical to Dynamic Positioning (DP) operations in Arctic waters. Ice conditions are important for the analysis of ice-structure interaction in an ice field. To monitor sea-ice conditions, ...
    • Modeling and Control for Dynamic Positioned Marine Vessels in Drifting Managed Sea Ice 

      Kjerstad, Øivind Kåre; Skjetne, Roger (Journal article; Peer reviewed, 2014)
      This paper presents a development framework for dynamic positioning control systems for marine vessels in managed ice. Due to the complexity of the vessel-ice and ice-ice interactions a configurable high fidelity numerical ...
    • The Arctic DP Research Project: Effective Stationkeeping in Ice 

      Skjetne, Roger; Imsland, Lars Struen; Løset, Sveinung (Journal article; Peer reviewed, 2014)
      Stress on the environment from a potentially growing energy use is set to rise. Without doubt the energy resources in Arctic regions will be developed. An important goal will be to exploit the resources offered by for ...
    • Using Autonomous Underwater Vehicles as Sensor Platforms for Ice-Monitoring 

      Norgren, Petter; Skjetne, Roger (Journal article; Peer reviewed, 2014)
      Due to the receding sea-ice extent in the Arctic, and the potentially large undiscovered petroleum resources present north of the Arctic circle, offshore activities in ice-infested waters are increasing. Due to the presence ...