Blar i Institutt for marin teknikk på tittel
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Sail-induced resistance on a wind-powered cargo ship
(Peer reviewed; Journal article, 2022)This article explores the added resistance due to side forces from wingsails, called the sail-induced resistance. A cargo ship is tested with varying speed, appendages, number of sails, and control algorithms for the sails. ... -
Salmon Emergency Response Vessel Design of a new vessel type using system based ship design with added insight through discrete event simulation
(Master thesis, 2021)Den norske lakseoppdrettsnæringa har eit behov for å forbetre beredskapen for krisesituasjonar. Dette blei tydeleg mellom anna våren 2019 då ein storskala algeoppblomstring råka Nord-Noreg. Resultatet var massedødelegheit ... -
Sammenligning av moment og spiralmodeller for utmatningsanalyse av fleksible stigerør
(Master thesis, 2014)There are still quite a lot of unknown and unexplainable fields in riser section, whose fatigue damage may cause loss of lives, environmental pollution and threats to the economy. In this thesis, two methods to find the ... -
Sammenligning av ulike lastearrangement for vindturbinkomponenter på et transportfartøy med fokus på stabilitet
(Master thesis, 2020)Utbyggingen av offshore vindkraft er i sterk vekst, og det forventes at samlet installert effekt i verden vil mer enn dobles fra dagens nivå innen 2024. Teknologiutvikling medfører stadig mer effektive vindturbiner gjennom ... -
Sand waves in free surface flow : a study with emphasis on hydrodynamic aspects
(Doktor ingeniøravhandling;Thesis no. P-1-84, Doctoral thesis, 1984)The problem of sand wave generation in free surface flow has been presented and its engineering and scientific significance has been pointed out. A survey of the existing literature on the subject has been performed. The ... -
Scaling laws for the water entry of a three-dimensional body
(Peer reviewed; Journal article, 2021)The present experimental investigation is a new way of conducting tests on model scale and of interpreting the results for the water entry of a free-falling conical body shape entrapping an air cavity. A three-dimensional ... -
Scenario analysis of fish escapes in Norwegian aquaculture for implementation of barrier management and improved learning from accidents
(Peer reviewed; Journal article, 2022)Learning from accidents is decisive for establishing barriers to prevent future accidents and ensuring safety in socio-technical systems. Farmed fish escape is a major concern in the aquaculture industry and there is limited ... -
Scour and Burial of Spherical Bodies, Short Cylinders, and Truncated Cones Induced by Bichromatic and Bidirectional Waves
(Peer reviewed; Journal article, 2024) -
Scour around wind turbine foundations, marine pipelines and short cylinders due to long-crested and short-crested nonlinear random waves plus currents
(Master thesis, 2011)This report presents a stochastic method for predicting scour depth around vertical circular slender piles, including various cross sections and group arrangements, marine pipelines and the burial and scour hole geometry ... -
SCOUR BELOW PIPELINES AND AROUND VERTICAL PILES DUE TO RANDOM WAVES PLUS CURRENT ON MILD SLOPES
(Master thesis, 2014)This thesis presents a stochastic method for predicting the scour depth around vertical circular slender piles and below marine pipelines due to random waves plus current on mild sloping seabeds. An overview of the scour ... -
Scour below pipelines due to random waves alone and random waves plus currents on mild slopes
(Journal article, 2017)This paper provides a practical stochastic method by which the maximum equilibrium scour depth below a pipeline exposed to random waves plus a current on mild slopes can be derived. The approach is based on assuming the ... -
Screening LCA of GHG emissions related to LNG as ship fuel
(Master thesis, 2012)In view of the increasingly popular climate change debate worldwide, maritime transport is under pressure to create sustainable solutions for a cleaner future.One of these solutions is using liquefied natural gas (LNG) as ... -
Sea floor geometry approximation and altitude Control of ROVs
(Journal article; Peer reviewed, 2014)This paper presents a method for sea floor geometry approximation in a local region beneath a remotely operated vehicle (ROV) for use in altitude control. The method is based on Doppler velocity log (DVL) altitude measurements ... -
Sea Loads on Closed Flexible Fish Cages
(Doctoral theses at NTNU;2018:28, Doctoral thesis, 2018)Norway has become the world's largest producer of Atlantic salmon through the use of open net structures in the sea. The aquaculture facilities have grown in both size and number. Currently, the industry faces increased ... -
Sea Passage Scenario Simulation for Ship System Performance Evaluation
(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 ... -
Sea state estimation based on vessel motion responses: Improved smoothness and robustness using Bezier surface and L1 optimization
(Peer reviewed; Journal article, 2021)Floating structures oscillate in waves, where these wave-induced motions may be critical for various marine operations. An important consideration is thereby given to the sea states at the planning and operating stages for ... -
Sea state estimation using model-scale DP measurements
(Chapter, 2015)Complex marine operations are moving further from shore, into deeper waters, and harsher environments. The operating hours of a vessel are weather dependent, and good knowledge of the prevailing weather conditions may ... -
Sea state estimation using multiple ships simultaneously as sailing wave buoys
(Journal article; Peer reviewed, 2019)The article presents initial ideas towards a network-based approach for sea state estimation used for marine operations and other maritime applications. In principle, all available means, ranging from in situ buoys, fleet ... -
Sea State Estimation Using Quadratic Discriminant Analysis and Partial Least Squares Regression
(Journal article; Peer reviewed, 2019)This paper proposes non-model based sea state estimation methods for a dynamically positioned vessel. Sea state estimation entails finding the wave direction, significant wave height and peak wave period and is done based ... -
Sea state estimation using vessel response in dynamic positioning
(Journal article; Peer reviewed, 2018)This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel conducting station keeping automatically by a dynamic positioning (DP) system, i.e., without ...