Institutt for marin teknikk: Recent submissions
Now showing items 1-20 of 3436
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Verdens plastproblem - går det på helsa løs?
(Research report, 2024) -
A Critical Review of Constitutive Models Applied to Ice-Crushing Simulations
(Peer reviewed; Journal article, 2024)In marine engineering, understanding the compressive behaviour of ice is crucial for accurately modelling ice loads on ships and offshore structures in ice-prone waters. Over the past few decades, numerous studies have ... -
Study on time-varying hydrodynamic coefficients for large-scale bottom-founded wind turbines and their impact on fatigue
(Master thesis, 2024)Utforskningen av utviklingen av bunnfaste offshore vindturbiner, med fokus på monopæler, indikerer at selv om den flytende offshore vindsektoren er i ferd med å utnytte dypere områder, er det fortsatt en god grunn til å ... -
A case study of rotor sails for electric pendulum ferries
(Master thesis, 2024)Ettersom den globale skipsfartsindustrien forsøker å begrense sin miljøpåvirkning, har den norske regjeringen satt et mål om å redusere utslipp av klimagasser med 50% innen 2030 for innenriks sjøfart og fiske. Som svar på ... -
MOMEC - Mapping of Energy Consumers
(Research report, 2023)Here, we present a study of the power consumption for different vessel types, and list some of the highest loaded consumers in different operations. In this brief study we are using Electrical Power Load Analysis (EPLA) ... -
Short-term extreme mooring loads prediction and fatigue damage evaluation for station-keeping trials in ice
(Journal article, 2021)Full-scale tests of station-keeping trials (SKT) in drifting ice were conducted as part of research activities undertaken by the company Equinor in the Bay of Bothnia in March 2017. In the SKT project, Magne Viking was ... -
Sea-Ice States: Unsupervised Segmentation from Multispectral Data Based on Mumford–Shah Functional
(Journal article, 2024) -
Modelling and design of Pre/post tensioned reinforced concrete floaters of FOWTs against ship collisions
(Master thesis, 2024)Utviklingen av flytende offshore vind turbiner er nødvendig for den økende etterspørselen av bærekraftig energi. Fremtidens vindparker kan ligge i mer åpne havområder, og utsettes for mer krevende driftsforhold. Det kreves ... -
Consolidated layer thickness in probabilistic simulation of first-year ice ridges
(Peer reviewed; Journal article, 2023)This research study focuses on resolving the issue of sparse data and information required for the probabilistic assessment of ice ridge loads in offshore structures in Arctic regions. The study introduces the consolidated ... -
3-D Adaptive AUV Sampling for Classification of Water Masses
(Journal article, 2023) -
Mulighetsstudie for renhold av det flytende, lukkede oppdrettskonseptet Egget®
(Bachelor thesis, 2024)Marin groe er et voksende problem i dagens havbruksnæring. Både mikro- og makroorganismer etablerer seg på konstruksjoner i sjø. Dette på bekostning av det nærliggende miljøet, og utgjør en trussel for artsmangfoldet. I ... -
Kan bruk av sykloner på karnivå i RAS-anlegg dokumenteres som positivt for vannkvalitet, og med hvilket målesystem?
(Bachelor thesis, 2024)Hensikten med denne bacheloroppgaven var å undersøke effektiviteten til sykloner på karnivå i RAS-anlegg, hvordan det påvirker vannkvaliteten, samt forsøke å etablere et målesystem. For at fiskens fysiologiske og morfologiske ... -
Kan bruk av sykloner på karnivå i RAS-anlegg dokumenteres som positivt for vannkvalitet, og med hvilket målesystem?
(Bachelor thesis, 2024)Hensikten med denne bacheloroppgaven var å undersøke effektiviteten til sykloner på karnivå i RAS-anlegg, hvordan det påvirker vannkvaliteten, samt forsøke å etablere et målesystem. For at fiskens fysiologiske og morfologiske ... -
Scour and Burial of Spherical Bodies, Short Cylinders, and Truncated Cones Induced by Bichromatic and Bidirectional Waves
(Peer reviewed; Journal article, 2024) -
Hybrid and nonhybrid control barrier functions for constraint satisfaction in dynamical systems: Applied to safe motion control of autonomous vessels
(Doctoral theses at NTNU;2024:262, Doctoral thesis, 2024)Control barrier functions (CBFs) enable constraint satisfaction in controlled dynamical systems, by mapping state constraints into state-dependent input constraints. CBFs may then be synthesized with any nominal control ... -
Ultimate strength of welded aluminium stiffened panels under combined biaxial and lateral loads: A numerical investigation
(Peer reviewed; Journal article, 2024)The number and size of aluminium non-monohull ships have been steadily increasing over time. This raises growing concerns regarding their structural strength, especially considering the adverse effects of the heat-affected-zone ... -
Agile smallsat operation tool-chain development: Hypso-1 hyperspectral earth observation experiences
(Peer reviewed; Journal article, 2023)Satellite operations is important for a successful mission, but can be time consuming for inexperienced operators in new small satellite projects. We present a method for the continuous development of an earth observation ... -
Lessons learned from the trial operation of an autonomous urban passenger ferry
(Peer reviewed; Journal article, 2024)Cities worldwide consider autonomous passenger ferries a sustainable way of transporting passengers across and along waterways. Since 2016, a university-led effort to develop autonomous urban passenger ferry prototypes has ... -
Comparative analysis of rolling contact fatigue life in a wind turbine pitch bearing with different modeling approaches
(Journal article; Peer reviewed, 2024)The load calculation for wind turbines usually does not take pitch bearings into account, and the pitch-bearing internal load distribution is calculated in a decoupled process. In the current study, a coupled wind turbine ... -
Human factor influences on supervisory control of remotely operated and autonomous vessels
(Journal article; Peer reviewed, 2024)Autonomous ships require remote supervision from a human operator to ensure safety. However, there are knowledge gaps concerning human factor influences on remote supervisory control. We investigate the influence of five ...