Now showing items 1-13 of 13

  • Bakdi, Azzeddine; Glad, Ingrid Kristine; Vanem, Erik; Engelhardtsen, Øystein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The continuous growth in maritime traffic and recent developments towards autonomous navigation have directed increasing attention to navigational safety in which new tools are required to identify real-time risk and complex ...
  • Fazeres-Ferradosa, Tiago; Taveira-Pinto, Francisco; Vanem, Erik; Reis, Maria Teresa; das Neves, Luciana (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Joint statistical models for long-term wave climate are a key aspect of offshore wind engineering design. However, to find a joint model for sea-state characteristics is often difficult due to the complex nature of the ...
  • Vanem, Erik; Breivik, Olav Nikolai (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Extreme weather conditions represent serious natural hazards to ship operations and may be the direct cause or contributing factor to maritime accidents. Such severe environmental conditions can be taken into account in ...
  • Bitner-Gregersen, Elzbieta M.; Vanem, Erik; Gramstad, Odin; Hørte, Torfinn; Aarnes, Ole Johan; Reistad, Magnar; Breivik, Øyvind; Magnusson, Anne Karin; Natvig, Bent (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    The paper addresses projected changes of wave climate in the North Atlantic and their impact on the safe design of ships, with a particular focus given on associated uncertainties. The Fifth Assessment Report of the ...
  • Vanem, Erik; Brandsæter, Andreas (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2018)
    Sensor data can be used to detect changes in the performance of a system in near real-time which may be indicative of a system fault. However, there is a need for efficient and robust algorithms to detect such changes in ...
  • Brandsæter, Andreas; Vanem, Erik; Glad, Ingrid Kristine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We propose novel modifications to an anomaly detection methodology based on multivariate signal reconstruction followed by residuals analysis. The reconstructions are made using Auto Associative Kernel Regression (AAKR), ...
  • Huseby, Arne; Vanem, Erik; Barbosa, Maria Hjelset (Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2019)
    Environmental contours are widely used as a basis for e.g., ship design, especially in early design phases. The traditional approach to such contours is based on the well-known Rosenblatt transformation. In the present ...
  • Huseby, Arne; Vanem, Erik; Eskeland, Karoline (Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2017)
    Environmental contours are widely used as a basis for e.g., ship design. The traditional approach to environmental contours is based on the well-known Rosenblatt transformation. However, due to the effects of this ...
  • Ross, Emma; Astrup, Ole Christian; Bitner-Gregersen, Elzbieta; Bunn, Nigel; Feld, Graham; Gouldby, Ben; Huseby, Arne; Liu, Ye; Randell, David; Vanem, Erik; Jonathan, Philip (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Environmental contours are used in structural reliability analysis of marine and coastal structures as an approximate means to locate the boundary of the distribution of environmental variables, and hence sets of environmental ...
  • Fazeres-Ferradosa, Tiago; Taveira-Pinto, Francisco; Romao, X.; Vanem, Erik; Reis, Maria Teresa; das Neves, Luciana (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Scour protection is an important component of fixed bottom foundations for offshore wind turbines. Depending on the hydrodynamic conditions, they might be indispensable to avoid the structural collapse of the foundation ...
  • Aarnes, Ole Johan; Reistad, Magnar; Breivik, Øyvind; Bitner-Gregersen, Elzbieta M.; Eide, Lars Ingolf; Gramstad, Odin; Magnusson, Anne Karin; Natvig, Bent; Vanem, Erik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Wind field ensembles from six CMIP5 models force wave model time slices of the northeast Atlantic over the last three decades of the 20th and the 21st centuries. The future wave climate is investigated by considering the ...
  • Brandsæter, Andreas; Vanem, Erik (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    The primary goal of this study is to adapt and validate various regression models to predict a ship's speed through water based on relevant and available full scale sensor measurements from a ship, including measurements ...
  • Vanem, Erik; Brandsæter, Andreas (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Sensor data from marine engine systems can be used to detect changes in performance in near real time which may be indicative of an impending failure. Thus sensor-based condition monitoring can be important for the reliability ...