• Autonomous ship concept evaluation – Quantification of competitiveness and societal impact 

      Nordahl, Håvard; Nesheim, Dag Atle; Lindstad, Elizabeth (Peer reviewed; Journal article, 2022)
      The prospect of large-scale international adoption of autonomous ships has led to expectations of reduced costs and emissions for waterborne transport of goods. This is commonly attributed to the possibility of removing ...
    • Comparison of laboratory wave generation techniques on response of a large monopile in irregular sea 

      Hoseini Dadmarzi, Fatemeh; Bachynski-Polic, Erin Elizabeth (Peer reviewed; Journal article, 2022)
      As the offshore wind industry moves toward larger monopile turbines, model testing and validation of hydrodynamic load models become more important for new designs of turbines. Wave generation is an important aspect of ...
    • Experimental study on the effect of second order wavemaker theory on the response of a flexible large diameter monopile in irregular sea 

      Hoseini Dadmarzi, Fatemeh; Tonnel, Matthias; Thys, Maxime; Bachynski-Polic, Erin Elizabeth; Kristiansen, Trygve (Peer reviewed; Journal article, 2021)
      Motivated by the need for larger offshore wind turbines, large diameter monopile foundations are being developed. To ensure safe design, there is a need for model testing and validation of hydrodynamic load models. Scaled ...
    • Identification of wave drift force QTFs for the INO WINDMOOR floating wind turbine based on model test data and comparison with potential flow predictions 

      Fonseca, Nuno; Thys, Maxime; Berthelsen, Petter Andreas (Peer reviewed; Journal article, 2021)
      The paper presents a comparison between empirical and numerical quadratic transfer functions (QTFs) of the horizontal wave drift loads on the INO WINDMOOR floating wind turbine. The empirical QTFs are determined from cross ...
    • Levels of autonomy for ships 

      Rødseth, Ørnulf Jan; Wennersberg, Lars Andreas Lien; Nordahl, Håvard (Peer reviewed; Journal article, 2022)
      This paper gives a summary of previously published papers on the definition of autonomy for ships, how this relates to different crewing regimes, and the terminology to be used. A conclusion is that autonomy should be ...
    • Ship Route Optimization Using Hybrid Physics-Guided Machine Learning 

      Jørgensen, Ulrik; Bellingmo, Pauline Røstum; Murray, Brian; Berge, Svein Peder; Pobitzer, Armin (Peer reviewed; Journal article, 2022)
      This paper presents a method for energy efficient weather routing of a ferry in Norway. Historical operational data from the ferry and environmental data are used to develop two models that predict the energy consumption. ...
    • Ship-Shore Interaction: The Model in the Middle 

      Hagaseth, Marianne; Juhl, Jeppe S.; Rødseth, Ørnulf Jan; von Scherpenzeel, Ben; van der Wurff, Andreas Maria (Peer reviewed; Journal article, 2022)
      The complex picture of maritime transport involving more than 100 thousand ships, more than 8000 ports and a large number of stakeholders fulfilling different roles and being responsible for different processes means that ...
    • Structured Description of Autonomous Inland Waterway Barge Operations 

      Hagaseth, Marianne; Meland, Per Håkon; Wille, Egil (Journal article; Peer reviewed, 2023)
      Autonomous and unmanned shipping is revolutionizing the maritime industry by introducing a paradigm shift on how to design the vessels and supporting land-side infrastructure. Currently, there is a lack of formalisms on ...
    • The Importance of Documenting Autonomous Tests 

      Bellingmo, Pauline Røstum; Fjørtoft, Kay Endre; Jørgensen, Ulrik; Kvam, Per Erik; Bratbergsengen, Inger Lill; Gisbert, Jose Vicente Perello (Peer reviewed; Journal article, 2022)
      This paper presents how autonomous tests can be documented and why this is important. A test area in Norway, more specifically the Trondheimsfjorden Test Area for Autonomous Ships, is used as a pilot to conduct tests with ...
    • Whispers in the Wind: Ethical dimensions of social conflict in offshore wind 

      Vasconcellos Oliveira, Rita (Peer reviewed; Journal article, 2023)
      The current European energy crisis in combination with the international climate agreements dictate the need for strong investment in green energy. Among others, offshore wind is widely considered an efficient low-impact ...