Institutt for marin teknikk
Recent Submissions
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Mission planner for multiple AUVs: Verification procedures combining simulations and experiment
(Journal article; Peer reviewed, 2018)This paper presents a mission control system (MCS) for a cooperative system of LAUVs. The proposed method is part of a system for operating several AUVs on a joint mission. The system is run on software and hardware from ... -
Toward adaptive robotic sampling of phytoplankton in the coastal ocean
(Journal article; Peer reviewed, 2019)Currents, wind, bathymetry, and freshwater runoff are some of the factors that make coastal waters heterogeneous, patchy, and scientifically interesting—where it is challenging to resolve the spatiotemporal variation within ... -
Experimental and Theoretical Investigations on the Ship Resistance in Level Ice
(Doctoral theses at NTNU;2019:198, Doctoral thesis, 2019)The growing interest in Arctic transportation and field logistics leads to an increasing demand for ships with good ice breaking performance. The ice breaking performance of ships is usually defined by their ability to ... -
Adaptive Sampling for Marine Robotics
(Doctoral theses at NTNU;2019:196, Doctoral thesis, 2019)Maintaining a healthy ocean is of the utmost importance. Having only a limited set of resources available to study this vast domain requires research and science to focus on more efficient data collection. Determining when ... -
Fatigue reliability assessment of offshore wind turbines with stochastic availability
(Journal article; Peer reviewed, 2019)In this paper, the impact on lifetime estimation of an offshore wind turbine by introducing a stochastic model for the availability is investigated. Offshore bottom-fixed wind turbines typically have an average downtime ... -
Reducing the probability of ship grounding: Which measure to undertake?
(Journal article; Peer reviewed, 2014)The analytic hierarchy process has been used to elicit the knowledge of maritime transport stakeholders, such as seafarers, authorities, insurers and academics, regarding human factors and risk-reducing measures for ship ... -
Recognition of Cold-Water Corals in Synthetic Aperture Sonar Imagery
(Chapter, 2018)The deep-water coral Lophelia pertusa is a common reef-building scleractinian coral, or stony coral, occurring in mid to deep waters around the world. The reefs they form are regarded as hot spots for biodiversity and ... -
Modeling of a semisubmersible floating offshore wind platform in severe waves
(Journal article; Peer reviewed, 2019)Floating offshore wind platforms may be subjected to severe sea states, which include both steep and long waves. The hydrodynamic models used in the offshore industry are typically based on potential-flow theory and/or ... -
Validation of Data-Driven Labeling Approaches Using a Novel Deep Network Structure for Remaining Useful Life Predictions
(Journal article; Peer reviewed, 2019)Today, most research studies that aim to predict the remaining useful life (RUL) of industrial components based on deep learning techniques are using piecewise linear (PwL) run-to-failure targets to model the degradation ... -
Experimental studies of a damaged ship section in forced heave motion
(Journal article; Peer reviewed, 2019)This work documents a detailed series of experiments performed in a wave flume on a thin walled prismatic hull form. The model consists of a rectangular opening located on the side. The length of the model is slightly ... -
Identifying safety indicators for safety performance measurement using a system engineering approach
(Journal article; Peer reviewed, 2019)The paper presents a method for the development of safety indicators for a process industry application based on a system engineering perspective. Traditional approaches use probabilistic risk assessment or linear accident ... -
LFCS Review report - Environmental conditions Wind, wave and current in coastal areas
(Research report, 2018) -
LFCS Review report – Environmental loads Methods for the estimation of loads on large floating bridges
(Research report, 2018)The document presents a review of state-of-the-art methods to calculate environmental loads on large floating bridges. It is a deliverable from WP2 of the Design and verification of Large Floating Costal Structures (LFCS) ... -
Low-frequency oscillations in flow past an inclined prolate spheroid
(Journal article; Peer reviewed, 2019)We analyse the forces on a 45∘ inclined 6:1 prolate spheroid at Reynolds number ReD = 8000. In contrast to flow at lower Reynolds numbers previously investigated, we now find a strong oscillatory behaviour in the global ... -
Dynamic response of a monopile wind turbine in waves: Experimental uncertainty analysis for validation of numerical tools
(Journal article; Peer reviewed, 2019)The responses of a monopile offshore wind turbine subjected to irregular wave loads are investigated numerically and experimentally, considering a range of sea states. An extensive experimental campaign was carried out on ... -
Theoretical and Experimental Studies of Wave Impact Underneatch Decks of Offshore Platforms
(Doktor ingeniøravhandling;2001:35, Doctoral thesis, 2001) -
Model Predictive Control of Marine Power Plants with Gas Engines and Battery
(Journal article; Peer reviewed, 2019)The electric load demand on marine vessels is constantly changing during some operational modes, such as in harsh weather or complex operations. Therefore, diesel engines are typically used to handle these variations. Gas ... -
A Comprehensive Survey of Prognostics and Health Management based on Deep Learning for Autonomous Ships
(Journal article; Peer reviewed, 2019)The maritime industry widely expects to have autonomous and semiautonomous ships (autoships) in the near future. In order to operate and maintain complex and integrated systems in a safe, efficient, and cost-beneficial ... -
Turbulent flow simulations at higher Reynolds numbers
(Doctoral theses at NTNU;2019:52, Doctoral thesis, 2019)This thesis presents recent advancements in direct numerical simulations of bluff body wake flows. The flow around a circular cylinder without and with special fairings have been studied, and the effect of boundary conditions ...
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