Blar i Institutt for marin teknikk på utgivelsesdato
Viser treff 421-440 av 3421
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Engine Testing of Diesel Fuels
(Master thesis, 2013)The goal has been to test different fuels in an engine, in order to do relative comparisons of how suitable the fuels are for powering an engine. These tests were performed on the Ricardo Hydra research engine in NTNU?s ... -
Damage interaction analysis of ship collisions
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:208, Doctoral thesis, 2013)During its lifetime, a ship may encounter accidents, such as collision and grounding, for which damage consequences in the forms of loss of human life, pollution of the environment, and economic losses may be substantial. ... -
Archaeology and biology in the deep sea: The Ormen Lange marine archaeology project
(Chapter, 2013)This paper presents the results and conclusions of a biological sampling project on the Ormen Lange deep-water shipwreck site. -
Assessment of Low-Frequency Roll Motions on the Semisubmersible Drilling Rig COSL Pioneer
(Master thesis, 2013)Excessive roll motions were registered on the drilling rig COSL Pioneer on January 25th 2012. Calculations performed by Global Maritime showed less roll motions than registered, but were consistent with the other five ... -
Time-Domain Simulation of Floating, Dynamic Marine Structures using USFOS
(Master thesis, 2013)This master thesis deals with calculation of the convolution integrals that constitutethe memory functions in the linear time-domain wave response equation. Basictheory needed to calculate the forces acting on floating ... -
Integration Filter for APS, DVL, IMU and Pressure Gauge for Underwater Vehicles
(Journal article, 2013)High-accuracy underwater navigation is important in order to automate motion control of remotely operated vehicles (ROVs). An observer that estimates the vehicle states (position, velocity, attitude and turn rates) is ... -
Modeling of Hydroelastic Response of Closed Flexible Fish Cages due to Sea Loads
(Master thesis, 2013)Norway is presently the worlds biggest producer of Atlantic salmon. The traditionally used open-net-structures are probably the most important reason for the Norwegian success.The very nature of aquaculture, where fish is ... -
Modularization of ship equipment in a complex vessel
(Master thesis, 2013)In early stages of design there are made big decisions under uncertainty. Ship design companies have to respond to a high number of tenders under strict time and resource-constraints in the process of selling designs. ... -
Coupled Analysis of a Moored Sevan Hull by the use of OrcaFlex
(Master thesis, 2013)Offshore activity related to the search of energy in terms of hydrocarbons is taking place at increasing water depths. In deeper water, the effects on the floater motion from the mooring and riser systems increase ... -
Vortex Induced Vibrations of Slender Marine Structures
(Master thesis, 2013)The main objective of this thesis is to study the behaviour of slender marine structures exposed to vortex induced vibrations (VIV). Especially the interaction between active response frequencies is important. This is done ... -
Development of an Ice Condition Prediction Model for the Arctic Sea
(Master thesis, 2013)This thesis regards the making of a program to predict ice conditions in the Arctic Circle. The Program has been made to try to prove the hypothesis below, correct. By finding a trend line based on already existing data ... -
Estimation of Extreme Values by the Average Conditional Exceedance Rate Method
(Journal article; Peer reviewed, 2013)This paper details a method for extreme value prediction on the basis of a sampled time series. The method is specifically designed to account for statistical dependence between the sampled data points in a precise manner. ... -
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 ... -
Estimation of extreme response for drilling risers
(Master thesis, 2013)The marine riser is an important and indispensable part of the offshore oil industry as they are used to convey fluids from the sea bed to a platform or floater. Drilling risers are used during drilling of new wells, while ... -
Numerical Investigation of Wave-Body Interactions in Shallow Water
(Master thesis, 2013)DNV has Wasim (a module of HydroD) as a Rankine panel method potential flow solver originally developed for more concern to deep water analysis. Some attempts have been made to extend the capability of the program in shallow ... -
Analysis and control of drilling riser dynamics in dual gradient drilling
(Master thesis, 2013)The aim of this thesis is to investigate a dual gradient riser system, adapted for operations in the Gulf of Mexico and subjected to first- and second-order wave forces, current and rig/vessel motion.Deep water drilling ... -
Effects of BOP Stack Modelling on Estimated Wellhead Fatigue Damage
(Master thesis, 2013)To date, there are no international codes or standards that deal with estimation offatigue in subsea wellhead systems. Nevertheless have preliminary analytical methodsfor wellhead fatigue estimation been established. These ... -
Flexible Pipeline for LNG Offloading System
(Master thesis, 2013)A theoretical description of the flexible riser has been presented with emphasis on cryogenic inner bore fluid flow. A description of choice of material and cross-sectional design with respect to cryogenic flexible pipes ... -
Design of Pipeline End Termination
(Master thesis, 2013)Aker Solutions has previously delivered pipeline end termination solutions for subsea field development projects in the North Sea, but for various reasons these are not a standard product in their scope of delivery. In ... -
Study of Critical Imaging Parameters and Variables for Environmental Monitoring Using an ROV with Experimental Results
(Master thesis, 2013)In the oil and gas industry there is a high focus on integrating technology in the environmental monitoring happening before, during and after an offshore operation. In order to properly monitor the underwater environment, ...