• Applying CAST to investigation of the FPSO’s incident with an iceberg 

      Kim, Ekaterina; Utne, Ingrid Bouwer; Kim, Hyungju (Journal article; Peer reviewed, 2019)
      On 29 March 2017, the floating production storage and offloading unit (FPSO) did not disconnect and sail away when a medium iceberg came close to the FPSO. The tow of the iceberg was unsuccessful, and the crew was instructed ...
    • Challenges with bringing collision risk models used in the north sea and norwegian sea to the Barents Sea 

      Hassel, Martin; Utne, Ingrid Bouwer; Vinnem, Jan Erik (Journal article; Peer reviewed, 2015)
      Norwegian offshore oil and gas exploration and production is moving into new and previously unexplored areas further north, such as the Barents Sea. This poses multiple new challenges in design, development and operation. ...
    • Fluid-structure-interaction analysis of an ice block-structure collision 

      Song, Ming; Kim, Ekaterina; Amdahl, Jørgen (Journal article; Peer reviewed, 2015)
      Due to climate change, production and transportation routes in Arctic regions are becoming more prevalent. When operating in Arctic waters, there is a significant risk of high energy encounters with smaller ice masses such ...
    • Glacial Ice and Offshore Structure Impacts under Wave and Current Excitation 

      Lu, Wenjun; Amdahl, Jørgen (Journal article; Peer reviewed, 2019)
      Bergy bits and growlers (i.e., glacial ice features with a waterline diameter < 15 m) travelling with waves can pose great threats to offshore structure and ships operating in the high North. It is generally more difficult ...
    • Pilot study of ice-structure interaction in a pendulum accelerator 

      Storheim, Martin; Nord, Torodd Skjerve; Kim, Ekaterina; Høyland, Knut Vilhelm; Langseth, Magnus; Amdahl, Jørgen; Løset, Sveinung (Journal article; Peer reviewed, 2015)
      More knowledge on the coupled response of ice and structure in collision in which both bodies undergo permanent damage is needed. These types of experiments are challenging to perform in a laboratory at relatively high ...
    • Probabilistic assessment of ice rose diagrams for ice drift in the beaufort sea 

      Sinsabvarodom, Chana; Chai, Wei; Leira, Bernt Johan; Høyland, Knut Vilhelm; Næss, Arvid (Journal article; Peer reviewed, 2019)
      The intention of this paper is to introduce the ice rose diagram, which is a graphical tool that makes it possible to display the ice drift speed, the occurrence frequency, and the drift direction at a particular location ...
    • Toward a holistic load model for structures in broken ice 

      Kim, Ekaterina; Lu, Wenjun; Lubbad, Raed; Løset, Sveinung; Amdahl, Jørgen (Journal article; Peer reviewed, 2015)
      Over the past decade we have seen an increase in marine operations in Arctic waters. Despite research and work on several offshore standards and ship rules, the ice loads on fixed and floating structures are not fully ...
    • Uncertainty quantification in the ice-induced local damage assessment of a hull section 

      Kim, Ekaterina; Yu, Zhaolong; Amdahl, Jørgen; Løset, Sveinung (Journal article; Peer reviewed, 2019)
      For the northernmost ocean regions, where the ice is occasionally present, one must design a robust structure that can withstand rare ice events (i.e., a glacial ice impact). Despite existing engineering practice is well ...
    • Understanding the effect of assumptions on shell plate thickness for arctic ships 

      Kim, Ekaterina; Amdahl, Jørgen; Storheim, Martin; Løset, Sveinung (Journal article; Peer reviewed, 2015)
      The presence of ice requires specially constructed ships. The biggest challenge in this aspect is ice loads on ship’s hull: processes of deformation and fracture of ice are not fully understood and ice geometry and mechanical ...