Blar i Institutt for marin teknikk på tittel
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Prediction of Load and Response of an Arctic SPAR in Ice
(Master thesis, 2010)Arctic environmental condition is extremely harsh. Shtokman field in Barents Sea is studied to conclude to the most important factors for design of offshore structures to facilitate drilling and production. In geographical ... -
Prediction of long-term extreme load effects due to wave and wind actions for cable-supported bridges with floating pylons
(Journal article; Peer reviewed, 2018)The characteristic values of the extreme environmental load effects should correspond to a specified annual probability of exceedance. These load effects can be calculated using short-term or long-term methods. The full ... -
Prediction of long-term extreme load effects due to wind for cable-supported bridges using time-domain simulations
(Journal article, 2017)Many long-span bridges that are slender and susceptible to wind-induced vibrations are currently under construction all over the world. As nonlinear structural behavior and nonlinear displacement-dependent wind loads become ... -
Prediction of Maneuverability on Double-Ended Ferry
(Master thesis, 2020)Ein balanse mellom motstand og manøvrering av eit fartøy er ei utfordring som ofte vert møtt av skipsdesignarar. Dei siste åra har merksemda rundt grøn transport og moglegheita for alternativ drivstoff endra balansen, noko ... -
Prediction of ships’ speed-power relationship at speed intervals below the design speed
(Peer reviewed; Journal article, 2021) -
Prediction of short-term wind and wave conditions for marine operations using a multi-step-ahead decomposition-ANFIS model and quantification of its uncertainty
(Journal article; Peer reviewed, 2019)Short-term predictions of wind and wave properties with a duration of 1–3 days are vital for decision-making during the execution of marine operations. One-step-ahead weather conditions can be accurately predicted via ... -
Prediction of Short-term Wind and Wave Conditions Using Adaptive Network-based Fuzzy Inference System (ANFIS) for Marine Operations
(Chapter, 2018)The paper focuses on prediction of short-term environmental conditions by using an improved ANFIS method for marine operations. The hindcast data used here consists of ten-year long one-hourly time series of mean wind speed ... -
Prediction of the accuracy of a dynamic positioning system of a vessel, The Solitaire
(Master thesis, 2011)This report presents the modeling of a pipelay vessel’s motions -the Solitaire- and its DP controller using the bond graph method. The governing equations are obtained with hydrodynamics considerations. Problems of finding ... -
Prediction of Vessel Activity in Arctic Waters using Supervised Learning Methods
(Master thesis, 2022)Raske miljøendringer i Arktis, i form av varmere temperaturer og smelting av havis, fører til lengre navigasjonssesonger og alternative transportveier. Økt sjøtrafikk i de tøffe klimaforholdene fører til en høyere sannsynlighet ... -
Preliminary assessment of increased main engine load as a consequence of added wave resistance in the light of minimum propulsion power
(Journal article; Peer reviewed, 2021)This paper addresses the connection between added wave resistance and required propulsion power of ships, having focus on the early stage of new ship designs, notably tankers and bulk carriers. The paper investigates how ... -
Preliminary Design Methodology Of Concrete Gravity-Based Foundations For Offshore Wind
(Master thesis, 2022)To expand the economic operating range of offshore wind farms, less common but innovative solutions regarding support structures should be considered. To increase the popularity of gravity-based foundations (GBF) within ... -
Preliminary hazard analysis of a small harbor passenger ferry – results, challenges and further work
(Journal article; Peer reviewed, 2019)The Norwegian University of Science and Technology (NTNU), is currently designing a small autonomous passenger ferry for up to 12 passengers. The ferry will bridge a harbor channel in Trondheim, Norway. This paper presents ... -
Preliminary Sizing and Optimization of Semisubmersible Substructures for Future Generation Offshore Wind Turbines
(Peer reviewed; Journal article, 2022)Several key development areas have been identified as having high potential for reducing the levelized cost of energy of offshore wind. Two of the most anticipated developments are future generation large wind turbines and ... -
Preparation of in-service measurement data for ship operation and performance analysis
(Peer reviewed; Journal article, 2020)An increasing number of ships are being equipped with sensors and devices for monitoring of operational behavior, and the amount and access to operational data is gradually increasing. Due to various reasons described in ... -
Pressure-dependent plasticity models with convex yield loci for explicit ice crushing simulations
(Peer reviewed; Journal article, 2022)Despite the viscous behaviour of crushed ice, plasticity models have been widely used for numerical modelling of ‘design-ice’ in damage assessment applications for several reasons outlined herein. The Crushable Foam (CF) ... -
Preventing Tower Resonance Induced by Thrust Variations on a Large 10MW Wind Turbine
(Master thesis, 2015)A simulation model based on a 10MW wind turbine is developed to test the performance of a speed exclusion zone algorithm with the purpose of preventing tower resonance. The model includes rotor aerodynamics, drive-train ... -
Probabilistic Assessment of Ice Environment and Ridge Loads for the Norströmsgrund Lighthouse
(Chapter, 2018)Structural reliability analysis requires statistical distribution of the loads. One such case is ice load calculation for offshore structures. Ice-structure interaction is a highly stochastic phenomenon due to the natural ... -
Probabilistic assessment of ice rose diagrams for ice drift in the beaufort sea
(Journal article; Peer reviewed, 2019)The intention of this paper is to introduce the ice rose diagram, which is a graphical tool that makes it possible to display the ice drift speed, the occurrence frequency, and the drift direction at a particular location ... -
Probabilistic Damage Stability - Evaluating the Attained Subdivision Index by Analysing the Effect of Changes in the Arrangement and Intact Stability for an Offshore Vessel
(Master thesis, 2016)The motivational basis and underlying goal of this master s thesis is to provide more knowledge to the experience data bank for ship designers with respect to probabilistic damage stability (PDS). More precisely, the ... -
Probabilistic Damage Stability - Maximizing the Attained Index by Analyzing the Effects of Changes in the Arrangement for Offshore Vessels
(Master thesis, 2015)Probabilistic damage stability calculations are time demanding and are conducted at a late stage of the design process. A detailed arrangement is required to calculate whether a ship fulfills the requirements. To minimize ...