Browsing Institutt for marin teknikk by Title
Now showing items 2314-2333 of 3413
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Numeriske strømningsberegninger av strømning rundt steg-sylindriske konfigurasjoner
(Master thesis, 2020)Denne masteroppgaven presenterer litterære studier og numeriske undersøkelser av den tredimensjonale viskøse strømningen rundt sirkulære sylindere, og steg-sylindere. Den første delen av oppgaven gir en introduksjon til ... -
Nye regler, sikrere havbruk?
(Master thesis, 2013)I dag stilles det strengere krav både til dokumentasjon og bemanning av lasteskip større enn 15 meter. En konsekvens av dette er at de fleste servicebåter i havbruksnæringen er bygget under 15 meter. I løpet av 2014 kommer ... -
Objektiv metode for dokumentasjon av støtskader på laks
(Master thesis, 2021)I denne masteroppgaven ble det gjort et forsøk på å etablere en objektiv metode for å dokumentere hvilke effekter støt mot oppdrettslaks har for fiskehelse og -velferd. En oppdrettslaks opplever fysiske støt i rørsystemene ... -
Observations from hydrodynamic testing of a flexible, large-diameter monopile in irregular waves
(Peer reviewed; Journal article, 2020)As the offshore wind industry moves toward larger wind turbines and deeper water, wave-induced loads on large-diameter monopiles are of increasing importance for ultimate limit state design checks. The combination of a ... -
Observations of Turbulence at a Near-Surface Temperature Front in the Arctic Ocean
(Peer reviewed; Journal article, 2020)High‐resolution ocean temperature, salinity, current, and turbulence data were collected at an Arctic thermohaline front in the Nansen Basin. The front was close to the sea ice edge and separated the cold and fresh surface ... -
Observer design for underwater vehicles with position and angle measurement
(Journal article, 2006)In this paper we propose a new observer system for underwater vehicles. The main design objective behind this strategy is to reduce the destabilizing effect of the Coriolis and centripetal forces and moments in the observer. ... -
Obtaining Hyperspectral Signatures for Seafloor Massive Sulphide Exploration
(Journal article; Peer reviewed, 2019)Seafloor massive sulphide (SMS) deposits are hosts to a wide range of economic minerals, and may become an important resource in the future. The exploitation of these resources is associated with considerable expenses, and ... -
OC6 Phase Ib: Validation of the CFD predictions of difference-frequency wave excitation on a FOWT semisubmersible
(Peer reviewed; Journal article, 2021)During the previous OC511 project, state-of-the-art mid-fidelity engineering tools for floating wind systems were found to consistently underpredict the nonlinear, low-frequency responses of semisubmersible offshore wind ... -
OC6 Phase II: Integration and verification of a new soil–structure interaction model for offshore wind design
(Peer reviewed; Journal article, 2021)This paper provides a summary of the work done within the OC6 Phase II project, which was focused on the implementation and verification of an advanced soil–structure interaction model for offshore wind system design and ... -
Occupational safety in aquaculture – Part 1: Injuries in Norway
(Journal article; Peer reviewed, 2017)This article presents an overview of reported injuries in the Norwegian aquaculture industry focusing on the production of Atlantic salmon and trout, which dominates the fish farming industry in Norway. Two different data ... -
Occupational safety in aquaculture – Part 2: Fatalities in Norway 1982–2015
(Journal article; Peer reviewed, 2017)This article presents an overview of reported fatalities in the Norwegian aquaculture industry focusing on the production of Atlantic salmon and trout, which dominate the fish farming industry in Norway. The data on ... -
Ocean space utilization
(Chapter, 2022)In the light of rising sea level, scarcity of land-based resources and increasingly populated coastal areas, interest of project developers and countries turns towards the ocean, exploring the possibilities of utilizing ... -
Ocean wave spectrum estimation using measured vessel motions from an in-service container ship
(Peer reviewed; Journal article, 2020)This article is about the use of measured wave-induced vessel motions for estimation of ocean wave spectra by application of the wave buoy analogy. In the study, data from a larger, in-service container ship is considered. ... -
Octabuoy Concept and Spar Buoys: Non Linear Effects and Analysis
(Master thesis, 2012)The age of the easy accessible hydrocarbon goes towards the end and new more challenging fields is the future of the oil industry. This is often synonymous with large depths where sea bed mounted platforms are highly ... -
Offshore Towing of Floating Wind Turbines design aspects with focus on numerical modelling
(Master thesis, 2021)Denne master oppgaven på dynamisk analyse av marine taue operasjoner, søker å foreslå en modell for vurdering av det dynamisk streke i ei taueline. Fire ulike modeller har blitt evaluert, en av modellen bruker en kvasistatisk ... -
Offshore wind turbine blade installation. Development of a motion-compensated Stewart platform for blade installation with a floating vessel
(Master thesis, 2023)Med de økende vanndybdene til de nye havvindparkene, de utfordrende jordforholdene, tilgjengeligheten av eiendeler og andre faktorer, kan det hende at oppjekkbare installasjonsfartøyer ikke lenger er egnet til å fullføre ... -
Offshore Wind Turbine Modelling State of the Art and future development
(Master thesis, 2022)Denne masteroppgaven presenterer state of the art teknologier og utviklingstrender for vindturbiner. Offshore vind blir sett på som en lovende del av energisektoren i målet mot et bytte til fornybare energikilder. DNV sin ... -
Offshore wind turbine operations and maintenance: A state-of-the-art review
(Peer reviewed; Journal article, 2021)Operations and maintenance of offshore wind turbines (OWT) play an important role in the development of offshore wind farms. Compared with operations, maintenance is a critical element in the levelized cost of energy, given ... -
Offshoring Strategies in Norwegian Ship Production
(Journal article; Peer reviewed, 2018)For the past several decades, Norwegian shipyards have focused on innovative, customized, and technologically advanced ships, often serving the offshore oil and gas industry. Usually, a significant part of the ship production ... -
Oil spill damage: a collision scenario and financial liability estimations for the Northern Sea Route area
(Peer reviewed; Journal article, 2020)The global demand in energy resources is moving the petroleum industry to the Arctic with its huge resource potential. The lack of infrastructure onshore increases the role of the Arctic marine shipping and the importance ...