Blar i Institutt for marin teknikk på tittel
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Performance Quantification of Icebreaker Operations in Ice Management by Numerical Simulations
(Peer reviewed; Journal article, 2021)The paper addresses the problem of quantifying and assessing the effectiveness of icebreaker operations in ice management (IM) using a high-fidelity simulator. The numerical model includes an accurate geometric representation ... -
Phase-field description of brittle fracture in plates and shells
(Journal article; Peer reviewed, 2016)We present an approach for phase-field modeling of fracture in thin structures like plates and shells, where the kinematics is defined by midsurface variables. Accordingly, the phase field is defined as a two-dimensional ... -
Phase-field simulation of ductile fracture in shell structures
(Peer reviewed; Journal article, 2021)In this paper, a computational framework for simulating ductile fracture in multipatch shell structures is presented. A ductile fracture phase-field model at finite strains is combined with an isogeometric Kirchhoff-Love ... -
A phase-time-path-difference approach for online wave direction and wave number estimation from measured ship motions in zero and forward speed using a single inertial measurement unit
(Journal article; Peer reviewed, 2023)This study investigates the potential capability of a relatively new and unexplored signal-based approach for shipboard wave estimation. The approach uses the phase-time-path-differences (PTPDs) from an array of shipboard ... -
Physical and mathematical modeling of awave energy converter equipped with a negative spring mechanism for phase control
(Journal article; Peer reviewed, 2018)A wave-energy converter has been studied through the combination of laboratory experiments and numerical simulations. The converter model is a semi-submerged axi-symmetric buoy with a circular cross section with a diameter ... -
Physical controls on phytoplankton size structure, photophysiology and suspended particles in a Norwegian biological hotspot
(Peer reviewed; Journal article, 2019)The impact of the physical environment and phytoplankton size on particle types (zooplankton, biogenic matter or phytodetritus) in the water column is poorly understood. Here, we investigate how hydrography (e.g. water ... -
Physical investigation of slamming loads on a 2D body
(Master thesis, 2015)In this thesis a physical investigation of the slamming loads on a two-dimensional body is performed. It includes an experimental analysis of a drop test performed at MARINTEK's laboratories on a wedge shaped section in ... -
A Physical-Based Damping Model of Gap and Moonpool Resonance in WAMIT
(Chapter, 2022) -
A physics-, SCADA-based remaining useful life calculation approach for wind turbine drivetrains
(Peer reviewed; Journal article, 2022)This paper describes the development of a physics-, SCADA-based model able to predict the expected lifetime for wind turbine drivetrains. A real-time coupled torsional gearbox-generator model is developed using the bond ... -
Pigment Composition of Macroalgae from a Norwegian Kelp Forest
(Master thesis, 2014)Variation in pigment composition between seasons in 10 different species of macroalgae was examined using high precision liquid chromatography (HPLC). In addition, a study on the variation of pigment quantity and quality ... -
Pile tip deformation caused by obstacles
(Master thesis, 2018)To identify the pile tip deformation, a finite element model is established. Six volume elements over the thickness are required at the contact zone to model the pile-boulder interaction accurately. Axial- and lateral soil ... -
Pilot study of ice-structure interaction in a pendulum accelerator
(Journal article; Peer reviewed, 2015)More knowledge on the coupled response of ice and structure in collision in which both bodies undergo permanent damage is needed. These types of experiments are challenging to perform in a laboratory at relatively high ... -
Pipeline Accidental Load Analysis
(Master thesis, 2011)Ship interaction in terms of anchor hooking on a subsea pipeline has been investigated in this thesis. An attempt has been made to predict the most probable anchor interaction loads on the Kvitebjørn gas pipeline in the ... -
Pipeline damage assessment after trawling impact
(Master thesis, 2018)Bulking av subsea-rørledning på grunn av kollisjon med trålere kan ha en betydelig effekt på den gjenverende utmattings-levetiden til røret. Kriterie som benyttes til å avgjøre om et rør et sikkert etter bulking har innebyg ... -
Pipeline Free Span Fatigue Based on DNV RP & Time Domain VIV Modelling Procedures
(Master thesis, 2023)Fritt spennende undervannsrør er utsatt for ulike miljøbelastninger, hvorav virvelinduserte vibrasjoner (VIV) er en av de viktigste bidragsyterne til utmattingssvikt. VIV er et selvutløsende fenomen forårsaket av samspillet ... -
Pipeline Integrity Assessment of Dent with Gouge after Trawling Impact
(Master thesis, 2017)Damage to pipelines from interaction with trawler-gear affects the long-term integrity of the pipeline, and interference from trawling-equipment on subsea pipelines is a relatively common occurrence. This thesis looks on ... -
Pipeline Walking of High Pressure/Temperature Flowlines
(Master thesis, 2013)The offshore pipeline industry are facing more complex design challenges as the oiland gas industry moves into deeper water in search for hydrocarbons. One of thesechallenges are related to high pressure/high temperature ... -
Pitting corrosion identification approach based on inverse finite element method for marine structure applications
(Peer reviewed; Journal article, 2023)This paper presents a state-of-the art inverse finite element method (iFEM) for full-field, real-time structural health monitoring (SHM) of corroding structures. The study focuses on detecting the location and identifying ... -
Planlegging av Arktiske operasjoner: Fiskeflåtens og Polarkodens påvirkning av Arktiske operasjoner
(Master thesis, 2013)Med krympingen av den Arktiske isen, utvides mulighetene for aktivitet i området. Fiskefartøy har vært i Arktis lenge, og ved at området er isfritt lengre, åpnes det for en lengre driftsperiode i nordområdene. Denne fordelen ... -
Planning and disruption challenges in the logistical offshore supply chain based on a simulation model
(Master thesis, 2013)The offshore industry is a dynamic industry with constant demand changes. This creates many challenges, one of them being logistical supply planning. The need changes fast and this makes it important to receive the deliveries ...