Blar i NTNU Open på tittel
Viser treff 44960-44979 av 100872
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Ice loading on Semi-Submersible: Local Analysis of Structural Response
(Master thesis, 2019)Interessen for Arktis ha vært økende de siste årene, og en økning i aktivitet i denne regionen en setettersom søken etter olje og gass fortsetter. Nye utfordinger oppstår siden miljøet i disse områdene er tøffe og ... -
Ice Loading On Ship Hull - Ice Specimen Testing and Stress Analysis of Local Plate Fields in the Bow Region.
(Master thesis, 2017)Arctic operations are mostly carried out in seas covered in ice. For these operations, both DNV GL and IACS provide regulations for classification of ships. Interaction with ice is difficult to determine, as it could occur ... -
Ice Loading on Ship Hulls
(Master thesis, 2019) -
Ice management and design philosophy
(Chapter, 2018)Ice management (IM) is defined as all activities carried out with the objective of mitigating hazardous situations by reducing or avoiding actions from any kind of ice feature to a protected unit (e.g. a drilling vessel) ... -
Ice Management in Arctic Offshore Operations and Field Developments
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:210, Doctoral thesis, 2010)The subject ice management has been studied with the main objective to deduce a methodology that incorporates the effect of ice management on the structural reliability of offshore installations. This was done by first ... -
Ice Management with System Theoretic Process Analysis (STPA) for Marine Operations in Arctic Environments
(Master thesis, 2019)Det siste hundreåret har Arktis vore forlokkande for modige forskarar og eventyrarar, men utilgjengeleg for dei fleste. Klimaendringar og framsteg i teknologi endrar dette raskt, noko som gjer den arktiske regionen meir ... -
ICE MELTING CAPACITY OF DEICING CHEMICALS IN COLD TEMPERATURES
(Doctoral theses at NTNU;2017:258, Doctoral thesis, 2017)Cold climates cause a great number of challenges when it comes to maintaining road conditions. For instance, snowstorms, frost and ice can all create slippery and even impassible roads. Therefore, in order to ensure vehicular ... -
Ice Navigation in Arctic Offshore Wind Parks: Traffic Coordination Using Route Exchange and Moving Havens
(Peer reviewed; Journal article, 2023)New areas for the production of fossil-free renewable offshore energy production are planned in Arctic waters in the Bay of Bothnia, in the very north of the Baltic Sea between Sweden and Finland. These are waters normally ... -
Ice particles sink below the water surface due to a balance of salt, van der Waals and buoyancy forces
(Journal article; Peer reviewed, 2018)According to the classical Archimedes’ principle, ice floats in water and has a fraction of its volume above the water surface. However, for very small ice particles, other competing forces such as van der Waals forces due ... -
Ice ridge keel size distributions: Analysis of ice ridge keel thickness from Upward Looking Sonar data from the Fram Strait using extreme value theory.
(Master thesis, 2014)The present thesis explored sea ice ridges in the Fram Strait from data collected at 79 degrees N, 65 degrees W in 2006/2007 by an Upward Looking Sonar instrument, IPS4, and used extreme value analysis to provide an estimate ... -
Ice rose diagrams for probabilistic characterization of the ice drift behavior in the Beaufort Sea
(Journal article; Peer reviewed, 2022) -
Ice thickness estimates for design of structures
(Peer reviewed; Journal article, 2023)The level ice thickness is perhaps the most important ice property in both engineering and geophysics. Ice action from level ice scales almost linearly with ice thickness and the level ice thickness gives the mode in ice ... -
Ice-Ice and Ice-Steel Friction in Field and in Laboratory
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:300, Doctoral thesis, 2013)Friction is one of the key phenomena during the interaction of ice with offshore structures and ships, ice rafting and ridging processes, and the brittle compressive failure of ice. Therefore, knowledge of the ice friction ... -
Ice-Induced Loading on Ship Hull During Ramming
(Master thesis, 2012)As a result of the steadily increasing activities related to marine technology in Arctic regions, Det Norske Veritas has launched an ice load monitoring project to gather knowledge of the ice conditions and prevailing ... -
Ice-Induced Loads on Ship Hulls
(Master thesis, 2012)The calculation of ice-induced loads on ships is still mainly based on empirical models. In order to gain a better physical understanding of the loading on ice-going vessels, Det Norske Veritas launched an ice load monitoring ... -
Ice-induced vibrations of the Norströmsgrund lighthouse
(Journal article; Peer reviewed, 2018)The signature and occurrence of frequency lock-in (FLI) vibrations of full-scale offshore structures are not well understood. Although several structures have experienced FLI, limited amounts of time histories of the ... -
Ice-induced vibrations under continuous brittle crushing for an offshore wind turbine
(Master thesis, 2015)Offshore wind structures located in ice infested waters are subjected to actions from moving ice and forces are generated when a drifting ice crushes against the structure. The main purpose of this Master s thesis is to ... -
Ice-propeller impact analysis using an inverse propulsion machinery simulation approach
(Doctoral theses at NTNU;2019:235, Doctoral thesis, 2019) -
Iceberg ploughmarks illuminated by shallow gas in the central North Sea
(Journal article; Peer reviewed, 2014)Conventional 3D seismic data provides direct evidence for glacial influence during the early Pleistocenesedimentation in the Central North Sea. We identify iceberg ploughmarks as dim linear to curve-linearfeatures in three ... -
Iceberg shape characterization for damage assessment of accidental impacts with ships and offshore structures
(Master thesis, 2013)The northern areas are becoming more and more attractive because off the large oil and gas reservoir that is there. In this area there is a harsh environment and the possibility to collide with an iceberg increases as the ...