Browsing NTNU Open by Author "Sandvik, Endre"
Now showing items 1-11 of 11
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A simulation-based ship design methodology for evaluating susceptibility to weather-induced delays during marine operations
Sandvik, Endre; Gutsch, Martin; Asbjørnslett, Bjørn Egil (Journal article; Peer reviewed, 2018)In this paper, we present and test a discrete-event simulation approach for evaluating the inherent susceptibility to weather-induced delays during marine operations as a consequence of limitations in vessel response ... -
Deep Learning Metocean Simulation and its Applications in Marine Simulation-based Design
Lønnum, Ole Johan Jørgensen (Master thesis, 2018)The objective of the master's thesis was to validate the quality of deep learning models as stochastic metocean generators and practicality in the context of simulation-based design. The availability and quality of metocean ... -
Design optimization of offshore construction vessels
Sandvik, Endre (Master thesis, 2016)The topic of this thesis is optimization of ship design with regards to operational performance. 4 VARD Offshore Subsea Construction Vessels are analysed to find the optimum compromise of operability versus required power, ... -
Development of a routing module in a discrete event simulation platform for ship design assessment
Paulsen, Ole Brynjar Helland (Master thesis, 2020)De siste årene har simulering blitt undersøkt som et verktøy for å evaluere ytelsen til skip i realistiske vær- og bølgeforhold. Målet med denne oppgaven er å lage en rute-algoritme som kan implementeres i en simuleringsmodell ... -
Estimation of fuel consumption using discrete-event simulation - a validation study
Sandvik, Endre; Asbjørnslett, Bjørn Egil; Steen, Sverre; Johnsen, Trond Andreas Vikan (Chapter, 2018)In this paper, we investigate the validity of quasi-static discrete-event simulation for estimation of fuel consumption and assessment of energy effective ship designs. Stricter emission regulations for ships and developments ... -
A high-fidelity approach to modeling weather-dependent fuel consumption on ship routes with speed optimization
Ormevik, Andreas Breivik; Fagerholt, Kjetil; Meisel, Frank; Sandvik, Endre (Peer reviewed; Journal article, 2023)In this paper, we present the scheduling problem on a given route where speed optimization under various weather conditions is to be performed. Different approaches for calculating fuel consumption for vessels are introduced ... -
Impact of simulation model fidelity and simulation method on ship operational performance evaluation in sea passage scenarios
Nielsen, Jørgen Bremnes; Sandvik, Endre; Pedersen, Eilif; Asbjørnslett, Bjørn Egil; Fagerholt, Kjetil (Journal article; Peer reviewed, 2019)In this paper, we present and investigate important factors that influence a vessels fuel consumption during operation and what model fidelity that is required to adequately capture these factors in fuel consumption ... -
Operational sea passage scenario generation for virtual testing of ships using an optimization for simulation approach
Sandvik, Endre; Nielsen, Jørgen Bremnes; Asbjørnslett, Bjørn Egil; Pedersen, Eilif; Fagerholt, Kjetil (Peer reviewed; Journal article, 2020)In this paper, a model for implementation of sea passage operational scenarios in the context of simulation-based design of ships is presented. To facilitate the transition towards more energy-efficient shipping, the ability ... -
Sea Passage Scenario Simulation for Ship System Performance Evaluation
Sandvik, Endre (Doctoral theses at NTNU;2019:265, Doctoral thesis, 2019)This thesis addresses evaluation of ship system operational performance exposed to ocean waves for providing enhanced evaluation capabilities in the transition towards environmentally friendly shipping. It proposes and ... -
Simulation-based ship navigation for virtual testing of ship designs
Ranvik, Carita Gyldenskog (Master thesis, 2019)Hovedmålet med denne oppgaven er å utvikle mer realistiske og nøyaktige simuleringer for sjøkryssinger til implementering i simuleringsbasert skipsdesign. For å legge til rette for energieffektiv shipping, er virtuell ... -
Stochastic bivariate time series models of waves in the North Sea and their application in simulation-based design
Sandvik, Endre; Jørgensen Lønnum, Ole Johan; Asbjørnslett, Bjørn Egil (Journal article; Peer reviewed, 2019)In this paper, we present and evaluate three long-term wave models for application in simulation-based design of ships and marine structures. Designers and researchers often rely on historical weather data as a source for ...