Blar i Institutt for marin teknikk på tittel
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The influence of route choice and operating conditions on fuel consumption and CO2 emission of ships
(Journal article; Peer reviewed, 2016)The influence of various parameters, such as ship initial speed (full ahead and lower engine loads), loading condition, heading angle and weather conditions on ship fuel consumption and CO2 emission is presented. A reliable ... -
The influence of the choice of propeller design tool on propeller performance
(Master thesis, 2016)In this master thesis different propeller design and analysis methods are presented and compared in terms of the accuracy and computational efficiency of their theory. These methods include lifting line, vortex lattice ... -
The influence of using a ducted propeller on motions and speed loss of a ship in waves
(Master thesis, 2013)Comparisons of experimental and numerical investigations into the effect of duct on motion variables and speed loss for a given ship model are presented. The purpose of these comparisons is to verify the advantage of using ... -
The Modelling of Suction Caisson Foundations for Multi-Footed Structures
(Master thesis, 2014)Suction caissons are a type of offshore foundation that allow for fast and noise-free installation and decommissioning of offshore structures. They have been used for 20 years in the oil and gas industry and are also ... -
The Narimanov-Moiseev multimodal analysis of nonlinear sloshing in circular conical tanks
(Journal article, 2020)The chapter reports mathematical aspects of the Narimanov–Moiseev multimodal modelling for the liquid sloshing in rigid circular conical tanks, which perform small-magnitude oscillatory motions with the forcing frequency ... -
The Optimal Size of an LNG Fuel Tank on a Shuttle Tanker in the North Sea
(Master thesis, 2019)Denne oppgaven gir en oversikt over hvilke faktorer størrelsen på LNG drivstofftanken er avhengig av, og hvordan disse kan brukes til å estimere den optimale størrelsen på LNG drivstofftanken for en skytteltanker i ... -
The potential energy savings by application of a wave foil on the autonomous container vessel ReVolt
(Master thesis, 2015)ReVolt is an electrically propelled, autonomous concept container ship designed by DNV GL to minimize the energy consumption and cost; however, the added resistance in waves is a large resistance contributor. Effectively, ... -
The potential for a GIB based STN navigation system with ice drift compensation and experiences from underwater operations in the arctic
(Master thesis, 2022)Denne oppgaven foreslår en løsning på undervannsnavigasjon under isen ved å se på mulighetene for å bruke STN baserte navigasjonssystemer med en feed-forward isdrift kompensasjon for å konvertere is-relative DVL målinger ... -
The sinking of the El Faro: predicting real world rogue waves during Hurricane Joaquin
(Journal article; Peer reviewed, 2017)We present a study on the prediction of rogue waves during the 1-hour sea state of Hurricane Joaquin when the Merchant Vessel El Faro sank east of the Bahamas on October 1, 2015. High-resolution hindcast of hurricane-generated ... -
The status of risk assessments in Norwegian fish farming
(Chapter, 2017)The oceans will become the major contributor to the needed increase in global food production towards 2050. The fish farming industry is characterised by operations that are susceptible to changing weather, wind and currents, ... -
The Surface Wave Effects on the Performance and the Loading of a Tidal Turbine
(Journal article; Peer reviewed, 2018)When tidal turbines are utilized in the most energetic waters where there are significant waves, the assessment of the surface wave effects are of great concerns. The objective of this paper is to contribute to a fundamental ... -
Theoretical and experimental investigation of a free running fishing vessel at small frequency of encounter
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:327, Doctoral thesis, 2013)The hydrodynamic behaviour of a fishing vessel in a seaway was studied. The focus was on small frequencies of encounter, corresponding to following and stern quartering seas, where fishing vessels are susceptible to capsize. ... -
Theoretical and experimental studies of wave diffraction and radiation loads on a horizontally submerged perforated plate
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:22, Doctoral thesis, 2014)Interactions of free-surface waves and submerged perforated structures are far less understood than the interactions of waves and conventional impermeable structures. This motivates the present research to investigate major ... -
Theoretical and Experimental Studies of Wave Impact Underneatch Decks of Offshore Platforms
(Doktor ingeniøravhandling;2001:35, Doctoral thesis, 2001) -
Theoretical and experimental study of wind turbine drivetrain fault diagnosis by using torsional vibrations and modal estimation
(Peer reviewed; Journal article, 2021)This paper provides an analytical proof and the theoretical development of the idea of using the torsional vibration measurements for a system-level condition monitoring of the drivetrain system. The method relies on modal ... -
Theory and Experiments of a Free-Running Fishing Vessel in Stern Sea
(Chapter; Peer reviewed, 2014)Hydrodynamic aspects of a modern fishing vessel during manoeuvring in a seaway was studied theoretically and experimentally. The focus was on small frequencies of encounter, corresponding to following and stern quartering ... -
The Theory of Bond Graphs in Distributed Systems and Simulations
(Chapter, 2016)The bond graph theory provides a firm and complete strategy for making mathematical models and are used in this work to obtain a good relation between connectivity, causality and model fidelity in distributed systems. By ... -
Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part I: experimental study
(Peer reviewed; Journal article, 2021)Liquefied Natural Gas (LNG) spills may cause steel to embrittle, leading to the brittle fracture of marine structures due to the cryogenic temperatures. For the integrity assessment of marine steel structures in the event ... -
Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part II: finite element analysis
(Peer reviewed; Journal article, 2021)In Part I of this paper, six liquid nitrogen (LN2) pool boiling tests were carried out to locally cool down six different EH36 steel plates to cryogenic temperatures. Leindenfrost and Critical Heat Flux (CHF) points of LN2 ... -
Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills: Part III: structural response assessment
(Peer reviewed; Journal article, 2022)An experimental study that allows for thermal-structural analysis of steel structures subject to non-spreading cryogenic spills is described. A local, non-spreading cryogenic spill was replicated by building a liquid ...